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KOYO SANGYO LTD

Overview
  • Total Patents
    49
  • GoodIP Patent Rank
    125,778
  • Filing trend
    ⇧ 100.0%
About

KOYO SANGYO LTD has a total of 49 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 1987. It filed its patents most often in Japan, China and Mexico. Its main competitors in its focus markets surface technology and coating, machines and mechanical elements are POLYCOAT AS, PIONEER PLASTICS CORP and PELIKAN SCOTLAND LTD.

Patent filings in countries

World map showing KOYO SANGYO LTDs patent filings in countries
# Country Total Patents
#1 Japan 46
#2 China 2
#3 Mexico 1

Patent filings per year

Chart showing KOYO SANGYO LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Hirano Ryoichi 18
#2 Umezawa Yoshiaki 11
#3 Saito Toshio 10
#4 Takahashi Kazuma 8
#5 Wada Tetsuya 7
#6 Miyazaki Takayuki 6
#7 Minami Tomoyuki 5
#8 Iwakata Mario 4
#9 Akiyama Junichi 4
#10 Yoshizaki Kazuo 4

Latest patents

Publication Filing date Title
JP2020179472A Marking jig for flexible pipe
JP2020172947A Joint for flexible pipe
JP2020070921A Flexible tube joint and locking tool for joint
JP2019011864A Medical connection structure
JP2019203532A Flexible pipe joint
JP2019044900A Gas cock with inspection hole
JP2018059593A Gas cock fitting device
JP2017198624A Gas meter supporting device
JP2017190805A Pipe joint assembly and rotation stopper for pipe joint
JP2017141898A Pipe joint
JP2016137030A Medical stopcock and injection method of impregnating agent
JP2015042904A Gas cock
JP2016014409A Socket removal mechanism and buried type gas cock
JP2015098897A Gas valve with inspection hole
JP2015081664A Joint for gas
JP2015048913A Joint for refrigerant pipeline
JP2015048914A Joint for refrigerant piping
JP2015036046A Medical connection device
JP2014167372A Gas cock and built-in type gas cooking stove
JP2014137211A Built-in type gas stove