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TAMAGAWA SEIKI CO LTD

Overview
  • Total Patents
    3,160
  • GoodIP Patent Rank
    3,402
  • Filing trend
    ⇧ 20.0%
About

TAMAGAWA SEIKI CO LTD has a total of 3,160 patent applications. It increased the IP activity by 20.0%. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets electrical machinery and energy, measurement and basic communication technologies are STEGMANN MAX ANTRIEBSTECH, EASTERN AIR DEVICES INC and FAULHABER FRITZ GMBH & CO KG DR.

Patent filings per year

Chart showing TAMAGAWA SEIKI CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mimura Hisafumi 88
#2 Sugiura Tsuneo 78
#3 Hayashi Sokichi 75
#4 Kubota Muneaki 68
#5 Kitazawa Kanji 64
#6 Kikuchi Yoshimi 62
#7 Kushihara Hiroshi 59
#8 Seki Shigeo 58
#9 Nishida Shigeru 57
#10 Toyotake Katsutoshi 56

Latest patents

Publication Filing date Title
WO2021044717A1 Composite sensing device, rotary equipment, and rotary equipment control system
WO2021010166A1 Serial communication method and serial communication system
JP2020204506A Vibration gyroscope
JP2020201135A Stator structure of torque sensor
JP2020201069A Measurement device and method of bending state in conduit
JP2020193921A Hole curve measuring device
JP2020190474A Buckling prevention structure of linear variable differential transformer
JP2020182273A Resolver stator structure having wrong assembly preventing function of resolver stator
JP2020159539A Cooling structure of gear
JP2020156553A Stator mounting structure of finite angle motor
JP2020156263A Resolver stator
JP2020148216A Mechanical paradox planetary gear reducer, backdrive structure thereof, backdrive method and robot
JP2020150579A Rotary machine mounting structure, rotary machine, resolver, and rotary machine case
JP2020144018A Method for manufacturing magnetostrictive torque sensor and magnetostrictive torque sensor
JP2020134305A Angle display structure, angle indicator, synchronization angle display instrument, and torque synchronization system
JP2020134183A Signal processing apparatus of encoder
JP2020129636A Structure for preventing water infiltration into potting portion
JP2020129937A Shield structure for resolver part
JP2020127136A A/d conversion device
JP2020119846A Waterproof connector