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TOKAI RYOKAKU TETSUDO KK

Overview
  • Total Patents
    1,563
  • GoodIP Patent Rank
    6,316
  • Filing trend
    ⇩ 6.0%
About

TOKAI RYOKAKU TETSUDO KK has a total of 1,563 patent applications. It decreased the IP activity by 6.0%. Its first patent ever was published in 1988. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets transport, environmental technology and electrical machinery and energy are VOSSLOH KIEPE GMBH, KITANAKA HIDETOSHI and ELIN EBG TRACTION GMBH.

Patent filings per year

Chart showing TOKAI RYOKAKU TETSUDO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fujishima Akira 65
#2 Seki Masaki 62
#3 Kato Hirokazu 42
#4 Shichi Tetsuya 40
#5 Ueno Masayuki 39
#6 Torii Akihiko 38
#7 Sato Kenji 38
#8 Naruse Isao 37
#9 Takeuchi Hiroto 32
#10 Shimoyama Hiroki 32

Latest patents

Publication Filing date Title
JP2020038232A Stress monitoring device for iron structure
JP2021000937A Truck rotation zig and method for rotating the truck
JP2020172223A Power supply device
JP2020172118A Track irregularity measuring device
JP2020169489A Evaluation method of occurrence risk of debris flow, and evaluation program of occurrence risk of debris flow
JP2020169488A Evaluation method of occurrence risk of debris flow, and evaluation program of occurrence risk of debris flow
JP2020150688A Series multiplex power conversion device
JP2020150121A Superconducting coil and superconducting device
US2019270464A1 Monitoring system for railway vehicle
JP2020135977A Electric wire with terminal, electric wire connection structure, method of connecting electric wire, and method of manufacturing electric wire with terminal
JP2020125076A Electric wire support and power supply device
JP2020125958A Abnormality determination device, abnormality determination method, and abnormality determination program of transformer
JP2020124034A Power conversion controller
JP2020040643A Monitoring system for railway vehicle
JP2020106440A Contact type non-destructive test device with protection member and non-destructive test method
JP2020094898A Wheel and axle for railroad vehicle and device for measuring shape of wheel and axle for railroad vehicle
JP2020080595A Device and method
JP2020078110A Collected current monitoring device
JP2020062979A Reading light
JP2020062939A Cloth spring tension structure