Learn more

ROHM CO LTD

Overview
  • Total Patents
    25,487
  • GoodIP Patent Rank
    301
  • Filing trend
    ⇩ 1.0%
About

ROHM CO LTD has a total of 25,487 patent applications. It decreased the IP activity by 1.0%. Its first patent ever was published in 1981. It filed its patents most often in Japan, United States and China. Its main competitors in its focus markets semiconductors, electrical machinery and energy and audio-visual technology are SEMICONDUCTOR COMPONENTS IND, IXYS CORP and ADVANCED ANALOGIC TECH INC.

Patent filings in countries

World map showing ROHM CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Fujimoto Hisayoshi 387
#2 Tanaka Masahide 320
#3 Onishi Hiroaki 305
#4 Shakuda Yukio 291
#5 Shibata Kazutaka 267
#6 Yamamoto Isao 243
#7 Tanaka Haruo 222
#8 Nakahara Ken 199
#9 Sawada Hideki 191
#10 Horio Tomoharu 189

Latest patents

Publication Filing date Title
US2021126525A1 Control device of power factor correction circuit, power factor correction circuit, power supply device, and semiconductor device
WO2021079913A1 Semiconductor device
WO2021079846A1 Semiconductor device
WO2021075531A1 Trace circuit, semiconductor device, tracer, and trace system
US2021119540A1 Switching Power Supply Device
WO2021070921A1 Terahertz device
US2021104268A1 Data storage circuit and electronic apparatus
US2021105013A1 Gate driver circuit, motor driver circuit, and hard disk apparatus
JP2021002683A Semiconductor device and semiconductor module
WO2021075264A1 Audio circuit
WO2021065907A1 Semiconductor device, electronic component, and electronic component production method
WO2021065722A1 Semiconductor device
US2021098570A1 Semiconductor device
WO2021065740A1 Semiconductor device
WO2021065679A1 Crosstalk correction method and actuator driver
US2021091671A1 Switching power supply device
WO2021060085A1 Semiconductor device
US2021098449A1 Diode chip
WO2021059947A1 Semiconductor device
WO2021049432A1 Resonant gate driver circuit