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RICOH ELECTRONIC DEVICES CO LTD

Overview
  • Total Patents
    47
  • GoodIP Patent Rank
    46,676
  • Filing trend
    ⇩ 41.0%
About

RICOH ELECTRONIC DEVICES CO LTD has a total of 47 patent applications. It decreased the IP activity by 41.0%. Its first patent ever was published in 2006. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets electrical machinery and energy, control and environmental technology are CLOSED UP JOINT STOCK COMPANY DRIVE, VALOR ELECTRONICS INC and POWERVATION LTD.

Patent filings per year

Chart showing RICOH ELECTRONIC DEVICES CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Soma Shotaro 4
#2 Adachi Koichiro 4
#3 Nishida Junji 4
#4 Miyamoto Hideki 4
#5 Nishii Atsushi 3
#6 Doge Yusuke 3
#7 Hirose Yohkoh 3
#8 Hino Takahiro 3
#9 Sohma Shohtaroh 3
#10 Takeyama Yuji 3

Latest patents

Publication Filing date Title
WO2020250349A1 Constant voltage circuit and electronic device
WO2020129238A1 Laser drive device
WO2020003419A1 Constant voltage generating circuit
WO2019215866A1 Reference voltage generation circuit
JP2019078619A Semiconductor device and electronic apparatus
JP2019047066A Semiconductor laser drive device and electronic device
JP2019030179A Overvoltage protection circuit and power source device
JP2019023814A Constant voltage circuit
WO2018142640A1 Power source device and electronic apparatus
JP2018182997A Semiconductor device and control method thereof
JP2018128926A Reference voltage generating circuit and method
JP2017228239A Dc current control device and electronic apparatus
JP2017207946A Slew rate controller, semiconductor device, and electronic apparatus
JP2017011795A Rectification circuit, converter, and electronic apparatus
JP2016134085A Serial interface bus apparatus and control method therefor
JP2016134305A Locking device of connector, connector, and electronic apparatus
JP2016063568A Switching power supply device and electronic apparatus providing the same
JP2016059221A Switching power supply, electronic apparatus and bidirectional dc/dc converter
JP2016024671A Display control device and display control program, and electronic apparatus
JP2016025747A Dc/dc converter and electronic device