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KAGAWA SEIJI

Overview
  • Total Patents
    380
  • GoodIP Patent Rank
    11,930
  • Filing trend
    ⇧ 66.0%
About

KAGAWA SEIJI has a total of 380 patent applications. It increased the IP activity by 66.0%. Its first patent ever was published in 1976. It filed its patents most often in Japan, United States and China. Its main competitors in its focus markets machines, audio-visual technology and machine tools are AIREX AG, KE BURGMANN AS and TIKKA SYSTEM OY.

Patent filings per year

Chart showing KAGAWA SEIJIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kagawa Seiji 357
#2 Kagawa Yoichiro 77
#3 Seiji Kagawa 19
#4 Yoichiro Kagawa 5
#5 Ukai Nobuyuki 2
#6 Murakami Moritoshi 2
#7 Kai Eiichi 1
#8 Hashimoto Jun 1
#9 Sudo Norito 1
#10 Kawane Hiroshi 1

Latest patents

Publication Filing date Title
JP2020004940A Electromagnetic wave absorption composite sheet
JP2020021864A Electromagnetic wave absorption composite sheet
JP2020009821A Electromagnetic wave-absorbing composite sheet
TW201907420A Electromagnetic wave absorption cable
JP2019136839A Fine porous plastic film manufacturing apparatus
JP2018156925A Electromagnetic wave absorption cable
JP2018198254A Electromagnetic wave absorption filter
JP2018118781A Easy tearable plastic film and apparatus for manufacturing the same
JP2018103275A Manufacturing apparatus for microporous plastic film
JP2017226060A Manufacturing apparatus of microporous plastic film
JP2017188506A Near field electromagnetic wave absorbing film
JP2017095672A Microporous plastic film
JP2017152663A Near field electromagnetic wave absorption film
JP2017088832A Manufacturing method and manufacturing device of microporous plastic film
TW201616711A Method and apparatus for producing microporous metal foil
JP2016207989A Electromagnetic wave/sound absorption panel
JP2016078225A Manufacturing device of microporous metal foil
CN106232309A Manufacture method and the device of many micropore metals paper tinsel
JP2016078206A Manufacturing method of microporous metal foil
JP2015057322A Heat dissipation film and method and device for producing the same