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TOYO KOHAN CO LTD

Overview
  • Total Patents
    3,369
  • GoodIP Patent Rank
    3,498
  • Filing trend
    ⇧ 48.0%
About

TOYO KOHAN CO LTD has a total of 3,369 patent applications. It increased the IP activity by 48.0%. Its first patent ever was published in 1959. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets surface technology and coating, machines and materials and metallurgy are INTEGRAN TECH INC, TOMANTSCHGER KLAUS and ISG TECHNOLOGIES INC.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Saijo Kinji 266
#2 Inui Tsuneo 235
#3 Yoshida Kazuo 231
#4 Tomomori Tatsuo 227
#5 Tanaka Atsuo 177
#6 Shimizu Keiichi 169
#7 Kanda Katsumi 153
#8 Okayama Hironao 148
#9 Okamoto Hiroaki 132
#10 Ohmura Hitoshi 130

Latest patents

Publication Filing date Title
WO2021075253A1 Electrolytic foil and battery current collector
WO2021039958A1 Kit for evaluating gene mutation related to myeloproliferative neoplasm
WO2021039759A1 Carrier-layer-included metal laminate base material and method for producing same, metal laminate base material and method for producing same, and printed wiring board
WO2021039370A1 Copper-clad laminate and method for producing same
WO2021020338A1 Roughened nickel-plated material and method for producing same
WO2021002447A1 Control system of double-sided polishing device, control device, and method for producing substrate
WO2020250935A1 Jig for holding substrates for plating treatment use, and plating treatment device
WO2020250946A1 Roughened plated sheet
WO2020222305A1 Surface-treated steel sheet and production method therefor
WO2020204018A1 Surface-treated plate for alkaline secondary battery, and method for manufacturing same
JP2020167163A Surface-treated plate for alkaline secondary battery, and method for manufacturing the same
WO2020166694A1 Production method for hard disk board
JP2020079445A Plating method
WO2020045627A1 Metal plate for cell container, and method for manufacturing metal plate for cell container
JP2019194367A Method of producing metal-plated stainless steel
WO2020045086A1 Resin film for metal sheet lamination and laminated metal sheet using same
WO2020031956A1 Roll-bonded body, method for producing same, and heat dissipation reinforcement member for electronic devices
WO2020027209A1 Base material for electronic parts transport jig
KR20210032397A Artificial nickel plated plate
KR20210028610A Hot rolled steel sheet, high strength cold rolled steel sheet, and manufacturing method thereof