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POWDERTECH CO LTD

Overview
  • Total Patents
    495
  • GoodIP Patent Rank
    6,129
  • Filing trend
    ⇩ 46.0%
About

POWDERTECH CO LTD has a total of 495 patent applications. It decreased the IP activity by 46.0%. Its first patent ever was published in 1990. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, optics and macromolecular chemistry and polymers are ARLSIDE LTD, YAMAMOTO ATSUSHI and FAUCHER SANTIAGO.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Aga Koji 160
#2 Sugiura Takao 110
#3 Igarashi Tetsuya 108
#4 Uemura Tetsuya 80
#5 Kobayashi Hiromichi 73
#6 Kojima Takashi 68
#7 Sawamoto Hiroki 63
#8 Sato Yuji 56
#9 Ishii Kazutaka 48
#10 Honjo Toshio 47

Latest patents

Publication Filing date Title
WO2021070871A1 Ferrite powder, ferrite resin composite material, and electromagnetic shielding material, electronic material, or electronic component
WO2020175336A1 Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
WO2020158519A1 Ferrite composite powder, method for producing ferrite molded body, method for producing ferrite sintered body, molded body, and sintered body
WO2020158520A1 Electrode-forming material, method for producing electrode, and electrode
CN110928152A Ferrite powder, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer
JP2020154236A Ferrite particle, electrophotographic developer carrier core material, electrophotographic developer carrier and electrophotographic developer
KR20200121298A Mn ferrite powder, resin composition, electromagnetic shielding material, electronic materials and electronic parts
WO2019159796A1 Mn–mg ferrite powder, resin composition, electromagnetic wave shielding material, electronic material, and electronic component
WO2019159800A1 Composite particles, powder, resin composition, and molded body
WO2019159799A1 Composite particle, powder, resin composition, and molded article
WO2019198304A1 Ferrite particles, carrier core material for electrophotographic developers, ferrite carrier for electrophotographic developers, and electrophotographic developer
JP2020118899A Electrophotographic developer carrier core material, manufacturing method therefor, electrophotographic developer carrier equipped with the same, and developer
WO2019146661A1 Composite particle, powder, resin composition, and molded article
KR20200064070A Mn-Zn-based ferrite particles, molded resin, soft magnetic mixed powder and magnetic core
JP2020052065A Electrophotographic developer carrier, electrophotographic developer, and method for manufacturing electrophotographic developer
CN111033646A Composite particle, powder, resin composition, and molded body
CN110402238A Ferrite powder, resin combination and formed body
EP3605236A1 Ferrite carrier core material for electrophotographic developer, ferrite carrier, manufacturing method thereof, and electrophotographic developer using said ferrite carrier
JP2019040174A Magnetic core material for electrographic developer, carrier for electrographic developer and developer
WO2018110562A1 Iron oxide powder for brake friction material