President’s Message
Unipulse was established by a handful of young engineers including myself in 1970, with an aspiration to create unique products using our pulse (digital) circuit technologies.
From the very start, we have been specializing in stress measurement using strain gauge and force and weight measurement by loadcell. Especially for weighing indicators, we were the pioneer in the world to commercialize them.
Since then, with technology expertise we have developed a number of products such as; digital indicators which helps press-fitting and caulking etc. to be performed with optimal load; contactless capacitive displacement sensors, and rotating torque meters .
The rotating torque meter in particular has become the standard of shaft type torque measurement, and has been used at great deal of development and manufacturing sites.
In recent years, we have started in-house manufacturing of strain gauges, and are advancing the development of new load cells tailored to diverse applications, including screw-type and silicone-free types.
Furthermore, we pour our efforts into the development and the sales of various robots such as a torque actuator UNISERVO and an intelligent assist balancer Moon Lifter etc.
Especially, the intelligent balancer can assist transferring heavy objects with operation feeling with human hands as one likes. It has been receiving a favorable reception from many customers due to its excellent handleability never seen before.
Unipulse will continue it’s efforts to place the highest priority to R&D, and is committed to keep introducing the Japan’s first and the world’s first products.
We do hope you will give us further guidance and encouragement in the future.
Unipulse Corporation
President
Akiko Tamahisa
Business Outline
Unipulse is a sensor manufacturer.
We manufacture sensors such as loadcells and torque meters using our high-accuracy strain gauges. Our weighing indicators are widely used for auto-weighing machines such as Dosing machines, Filling machines, Packer scale, Hopper scale, Weigh bridges, Belt weighers and so on.
Rotating torque sensor is a newly developed hit-item. It is used to test rotational parts such as motors and engines.
Above mentioned Weighing indicators, Force indicators, Loadcells and Torque meters make up the majority of our sales.
In addition, Unipulse has CMS (Cart management system) business as well.
CMS (Car management system) is a sorting system used for logistics, our technology is leveraged for a cart which has an accurate weight scale.
Our CMS enables speedy and accurate sorting by giving appropriate instructions to operators via wireless LAN.
Direct selling (without depending on trading companies) is our primary sales approach to be a close partner for our customers.
We also cover oversea market with sales office located in key countries, providing repair services and so on.
To supply and develop our new products, “UNISERVO (Geared servo motor with output torque control)” and “Moon Lifter (Electric balancer)”, ROBOTEC Inc. was established.
Product category
| Rotating Torque Meter “UTM” Series |
A torque sensor that measures the torque of a rotating shaft. A strain gauge, amplifier, and AD converter are mounted on the rotating shaft to immediately digitize minute strain signals and a patent has been obtained for this groundbreaking invention that digitally transmits the signals to a fixed part. UTM achieved conflicting capabilities such as compact & lightweight, high accuracy, high-speed response, high rpm compatibility, and high durability at the same time, overturning the common sense of torque measurement of the time of its launch. Made possible various torque measurements that were difficult to achieve with conventional torque meters at the time, significantly contributing to the advancement of manufacturing technology. It received the Excellence Award at the Tokyo Venture Technology Awards (2014) and the Good Design Award (2014). |
| Load Cell | A sensor that measures force using strain gauges. Offers a wide lineup ranging from 100 gf (1 N) to 100 ton (1 MN). Load cells using strain gauges enable stable measurement against temperature changes and are widely used from R&D to mass production equipment. They include high-rigidity, fast-response load cells for force measurement (FA use) and high-precision load cells for weighing measurement. Received the Invention Award Merit Prize together with strain gauges (2021). |
| Weighing Measurement | A load cell indicator featuring high stability, with built-in control functions for configuring automatic weighing systems such as batching scales, liquid filling machines, packer scales, hopper scales, truck scales, and belt scales. |
| Force Measurement | An indicator that measures forces at high speed during machine`s assembly processes such as press fitting, caulking, press working, and capping, judges whether processes such as press fitting and caulking have been performed correctly, and transmits the results to an upper-level system. The wave comparator function, which compares waveforms of force vs. displacement or force vs. time to determine pass/fail, is the industry standard. |
| Amplifiers | An amplifier that generates bridge voltage to drive load cells, amplifies minute load signals, and outputs an analog voltage. High stability, low noise, and fast response — ideal for use with oscilloscopes and data loggers. Ideal for research and development applications. |
| Peripheral & Others | Printers that can issue receipts when connected to indicators, wireless transmission devices, and other accessories. |
| Displacement Measurement | Our displacement sensor product line includes capacitive type with 1nm resolution and non-contact fiber optic type with 3MHz bandwidth. Those are used for ultra-precision positioning, gap measurement, runout measurement, flatness measurement, vibration measurement, and more. |
| Preventive Maintenance Decive for Machine Tools | Preventive maintenance devices for ensuring the stable operation of machine tools. UNICLAMP can safely and remotely measure the clamping pull force of clamping units; UNICHUCK can safely and remotely measure the gripping force of chucks. GRIP MASTER can measure the tool gripping force of tool holders, and is used to prevent machining accuracy degradation and tool drop caused by reduced gripping force in tool holders. Received the Invention Award Invention Merit Prize (2023). |
| Torque Actuator “UNISERVO” |
A torque actuator that controls the torque measured by a rotating torque meter on the output shaft using a servo motor with a reducer. Thanks to the built-in reducer, it is compact yet generates large torque. The torque control resolution reaches 1/10,000, achieving delicate torque control. Received the Tokyo Venture Technology Excellence Award (2015), the Monozukuri Parts Grand Prize Encouragement Award (2015), the Electrical Science and Technology Encouragement Award (2016), and the Invention Award Invention Merit Prize (2018). (ROBOTEC’s product) |
| Electric Balancer “Moon Lifter” |
A suspended power assist device that balances the weight of a lifted workpiece to virtually zero, allowing it to be handled with light force. Offers a wide lineup from 40 kg to 1 ton, with HACCP specifications for the food industry and all-weather specifications. Various function customizations are available, and a function to cancel the inertia generated when moving a workpiece is standard equipment. Received the SME Excellent New Technology/New Product Award Excellence Prize (2018), the Invention Award Tokyo Governor’s Prize (2021), and the Invention Award Merit Prize (2025).(ROBOTEC’s product) |
Corporate Profile
| Corporate Profile | Unipulse Corporation |
|---|---|
| Established | April 1, 1970 |
| Capital | 95.00 million yen |
| Representative | Akiko Tamahisa |
| Number of Employees | About 275 (As of January, 2026) |
| Business Description | Manufacturing and sales of strain gauge type sensors (for measuring forces, displacements, torques, vibrations, etc.), optoelectronic devices, mechatronic devices, and electronic devices |
| Head Office | Nihonbashi Hisamatsucho, Chuo-ku, Tokyo, Japan |
| Saitama Factory | Koshigaya City, Saitama, Japan |
| Saitama Factory Annex | Koshigaya City, Saitama, Japan |
| Sales Offices | Nagoya, Osaka & Hiroshima, Japan |
| Subsidiaries | Unipulse Trading (Wuxi) Co., Ltd. |
| Overseas sales branches |
Unipulse Instruments Thailand (Bangkok, Thailand) Unipulse Instruments Pvt. Ltd. (New Delhi, India) |
Corporate History
| A.C | Corporate History | Products |
| 1970 | Unipulse Corporation was founded by Mr. Takami Yoshimoto and the head quarter was located at 1-Koraku, Bunkyo-ku, Tokyo. | Control devices/Power supply devices/Communication devices |
| 1972 | The office was re-located to 2-chome, Chiyoda-ku, Tokyo, and the manufacturing of custom-made industrial measurement systems (equipments), and communication devices was started. | Microwave devices and test devices for shipbuilding companies |
| 1974 | The office was re-located to Iriya, Taito-ku, Tokyo. Signal conditioners and indicators for load cells under our own brand were launched and the business was expanded to the weighing industry. |
Fully automated nailing machines for pachinko machines, data processing devices for material testing machines, parking fees calculation systems, fruits grading/sorting machines, AM3 (*First DC Ampliphier) |
| 1977 | Computers for software development were first introduced, and microcomputers (8080 & 8085A) were used to improve the performance of products. | F200 (*First load cell indicator), F300 (*First digital indicator), F400, AM53 |
| 1979 | A manufacturing facility was established in Koshigaya-city, Saitama, and mass production was started. The sales ratio of products under our own brand started to increase dramatically from then on. |
513B, AM10, LC310, LC510 |
| 1980 | U10 | |
| 1981 | The headquarter office was relocated to Koshigaya-City, Saitama. | AM55,LC610,F230,U20,LC1000 |
| 1983 | LC210 | |
| 1984 | LC630, LD515, M300, M500 | |
| 1985 | U200, LC612, AM20, F330, U300, F252, LC240, AM30, AZU12, F430 | |
| 1986 | Nagoya Sales Office was opened. | F360, B410, E850 |
| 1987 | F500, L810, M250, M350 | |
| 1988 | L830, LC400 | |
| 1989 | F272,F270II | |
| 1990 | Hiroshima Sales Office and Fukuoka Sales Office were opened. | F362, F800, D200 |
| 1991 | F366 | |
| 1992 | F700, L820 | |
| 1993 | Osaka Sales Office was opened. | F850, E760, E820, F155, F380, F750 |
| 1994 | Rakuzantei was opened in Lake Hatori Highland, Fukushima, as a recreational facility for employees. | F340, F740, C110, C120, E232, F480, F860, F880 |
| 1995 | F390 (*First dynamic force processor), LD5100, UL200 | |
| 1996 | E928, F701, F741, F770, UL100 | |
| 1997 | E930, LC1111 | |
| 1998 | Stocks were listed on the OTC market. | F158, F370, F600, LD5180 |
| 1999 | A new headquarter building was built in Sengendai 1-chome, Koshigaya City, Saitama. | UL120 |
| 2000 | Tokyo Office was opened in Ginza 1-chome. | F805, M252 |
| 2001 | The company was listed to the 2nd section of Tokyo Stock Exchange. | F156, F395, LD514 |
| 2002 | The Tokyo headquarter office was opened in Ginza 7-chome, and the former headquarter office in Koshigaya-city started to function as a technical center. | UL81,UL84 |
| 2003 | DS400, F720 | |
| 2004 | E85, F159, F320 | |
| 2005 | DS252, E90, F890, UNICLAMP | |
| 2006 | USB58 (Load cell with 1/10000 accuracy), F381, F720A | |
| 2007 | F372, F377, UL82, F160, UNICHUCK | |
| 2008 | The all of Nanotex’s shares were acquired, and Nanotex became a subsidiary. | F490, F741-C, E500, F130, WI500 |
| 2009 | F350 | |
| 2010 | The headquarter office was relocated to Nihonbashi Hisamatsucho, Chuo-ku, Tokyo. | F730, V100 |
| 2011 | Unipulse Trading (Wuxi) Co., Ltd., was established in China. | |
| 2012 | Rotating torque meter UTM (0.03 to 3000 N m) was launched; its sales was skyrocketing. Unipulse India was established in India. |
UTM (0.03 – 10000 N m, first toque meter), TM300, F331, F388, F701-P |
| 2013 | Rotating torque meter UTMII (0.05 to 10000 N m) was launched. Mass production of strain gauges and load cells started. MBO was carried out and all shares were delisted from the stock market (all shares were acquired by Mr. Takami Yoshimoto through TOB and so on). Nanotex was merged into Unipulse. Unipulse Instruments Thailand was established in Thailand. Intellectual Property Group was newly established for patent applications and managements. |
Rotating torque meter UTMⅡ (0.05 – 10000 N m), TM200, TM301, TM500, F325, F650 |
| 2014 | Entered to the final phase for the development of UNISERVO (a geared servo motor with torque sensing capability on the output shaft). Attended to many trade shows as an exhibitor, and sales of UTMⅡ increased well. |
Grip force tester GRIP MASTER, F820 , F735, TM400, TM700, UPM100, UMA-500, UNBF, UNCLB, UNGS, UNTCH |
| 2015 | The control capability for UNISERVO was dramatically improved, and the product was introduced to the market after M-Tech (a trade show) held on June 2015. | First UNISERVO with a controller 80 W (SVM-80), 200 W (SVM-200) |
| 2016 | In-house strain gauge production technology was substantically improved. Production of load cells were increased. In-house machining chamber was launched due to speeding up the developments. Metalworking machines such as NC lathe machines, machining centers, milling machines and electrical discharge machines were introducted in order to start in-house metalworking. Participated in many overseas and domestic exhibitions. |
High Sampling Rate Indicator FS2000, Weighing Indicator FC1000, DIN-rail Mountable Indicator FC400, High Rigidity and Responsiveness Loadcell SCB (Super Cell), Capacitive Contactless Displacement Sensor PS-IA-HS. |
| 2017 | Electric balancer Moon Lifter MLC-60K/120K/240K was introduced to the market. Participated in many overseas and domestic exhibitions. Production capacity of strain gauges was increased. Mass production of Moon Lifter started. Many patents were granted in 2017. |
First Electric balancer Moon Lifter wired type MLC-60/120/240 kg, linear encoder ULE-50, fiber optic displacement sensor ATW200, eddy current sensor UEC-1, 3D force sensors, pre-load measurement system, new capacities were added (15/40/80/200/750 W) to UNISERVO, parallel-link robot went into production. |
| 2018 | Wireless type Moon Lifter ML-60K/120K/240K/480K and MLH-480K/960K were launched. Dust-proof type Moon Lifter MLP-60K/120K/240K/480K was launched. Participated in many overseas and domestic exhibitions. Patent applications: 160, Patent granted: 25. Production of Moon Lifter was increased. Expanded into new markets with a servo press controller. |
UNISERVO 1500 W (lineup expanded), compression load cell UNBF2, compact clamping force tester UCF, servo press controller PFA10, flange type torque meter UTF, rotating torque meter UTMⅢ (0.05 – 2 N m) |
| 2019 | Compact & lighweight type Moon Lifter ML-30K was launched. Participated in many overseas and domestic exhibitions. Patent applications: 171, Patent granted: 34. Production of Moon Lifter was increased. The sales of servo press controller increased well. |
ML-30K added to the lineup, compression load cell UCW, ULS, UBFH, USH, tension/compression load cell URM, rotating torque meter UTMⅢ (5 – 200 N m), rotary encoder option for UTMⅢ, torque monitor for UTMⅢ TM320, torque converter for UTMⅢ TC80 |
| 2020 | Patent applications: 179, Patent granted: 40. Production of Moon Lifter were increased. |
Centering location option for UTMⅢ, torque monitor for UTMⅢ TM380 & REM, compact high-capacity compression load cell UCC, intelligent recorder MD252, UNISERVO without a reducer, UNISERVO 400 W added to the lineup, torque & angle monitor for UNISERVO USV-EC30, ring style controller for electric balancer ML-FRC, rechargeable controller for electric balancer ML-RFC2 & ML-WPT |
| 2021 | Production of the compact & lightweight type Moon Lifter ML-40K & MLS-60K was dramatically increased. Perticipated in many overseas and domestic exhibitions. Opened a new test building of torque flange. High-performance turning center was expanded. Patent applications: 193, Patent granted: 52. |
MLS-60K (compact type) & MLH-1500K added to the lineup, HACCP compatible electric balancer MLF-60K/120K/240K, ultra-thin compression load cell UST, tension/compression load cell UTTC, compact high-capacity compression load cell USLC, tension/compression center-hole type load cell UCPI, high heat resistant & compact high-capacity copmpression load cell UCC (HL), rotating torque meter UTMⅢ (500 – 10000 N m), torque flange UTFⅡ |
| 2022 | Ms. Akiko Tamahisa took office as the president and Mr. Takami Yoshimoto as the chairperson. Perticipated in many overseas and domestic exhibitions. Patent applications: 225, Patent granted: 69. Production of Moon Lifter were increased. The sales of torque meters and load cells increased well. |
Dust-proof & drip-proof type electric balancer MLT, MLH-2000K, tension & compression double-end male thread water proof load cell UIS, load-resistance digital load cell DSCB, built-in press force analyzer PFAE, measurement unit for strain gauge type sensor WI510 |
| 2023 | 3D scanner type coordinate measuring machine and image dimension measuring machine were introduced. Patent applications: 236, Patent granted: 80. |
Wireless SI/F converter for electric balancer ML-RF2SIF, wireless external controller for electric balancer ML-RFIO, eye-drop type torque meter, beam type siloxane-free load cell UWR, chuck force tester WI610, DIN rail mount weighing indicator FC500 series |
| 2024 | Patent applications: 250, Patent granted: 84. | Compact large capacity compression load cell USLC(HL), Electric balancer integrated crane Jib Moon |
Details of Products:
- U Series (U20, U300, etc…): pre-amplifiers for load cells
- LC series (LC240, LC610, etc…): load cell amplifiers
- F series (F360, F800, etc…): load cell indicators/digital indicators
- AM series (AM20, AM30, etc…): DC strain amplifiers:
- UL series (UL82, UL120, etc…): portable data logger
Domestic/Global Networks
Japan
| Tokyo Head Office | ||
|---|---|---|
| 9-11 Nihonbashi Hisamatsu-cho, Chuo-ku, Tokyo 103-0005 Japan Tel: +81-3-3639-6120 Fax: +81-3-3639-6130 |
||
| Saitama Factory | ||
| 1-3 Sengendainishi, Koshigaya, Saitama 343-0041 Japan Tel: +81-48-977-1111 Fax: +81-48-976-5200 |
||
| Saitama Factory Annex | ||
| 2-7-10 Sengendainishi, Koshigaya, Saitama 343-0041 Japan Tel: +81-48-978-4681 Fax: +81-48-978-4682 |
||
| Nagoya Sales Office | ||
| TOMITA Bldg 2-5 Ushijimacho, nishi-ku, Nagoya 451-0046 Japan Tel: +81-52-300-8760 Fax: +81-52-433-6609 |
||
| Osaka Sales Office | ||
| Sumitomo Seimei Shin Osaka Kita Bldg 4-1-14 Miyahara, Yodogawa-ku, Osaka 532-0003 Japan Tel: +81-6-6150-1511 Fax: +81-6-6150-1513 |
||
| Hiroshima Sales Office | ||
| Hiroshima Dai-ichi Seimei OS Bldg. 1-2-21 Matoba-cho, Minami-ku, Hiroshima 732-0824 Japan Tel: +81-82-563-7542 Fax: +81-82-263-9080 |
||
China
| Unipulse Trading (Wuxi) Co., Ltd. |
|---|
| Room3501B, Office Building 1, Hanglung Plaza, 139 Renmin Road, Wuxi, Jiangsu, 214002 China（map） Tel: +86-510-8272-0324/0325 Fax: +86-510-8270-0060 |
Thailand
| Unipulse Instruments Thailand Co.,Ltd. |
|---|
| 118/152,153 M.6,T.Donhuaroh, A.Muang, Chonburi 20000 Thailand Tel: +66-63-535-5913 |
India
| Unipulse Instruments Pvt. Ltd. |
|---|
| India/Pakistan/Bangladesh/Sri Lanka
Level 9, Spaze I-Tech Park, A1 Tower, Sector – 49 Sohna Road, Gurgaon-122018 INDIA |
