YH

Yasushi Hirata

BL Bridgestone Tire Company Limited: 9 patents #11 of 438Top 3%
Bridgestone: 8 patents #280 of 2,860Top 10%
HO Horiba: 7 patents #48 of 604Top 8%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
JR Japan Synthetic Rubber: 3 patents #110 of 558Top 20%
DE Denso: 1 patents #6,940 of 11,792Top 60%
AG Agc: 1 patents #509 of 954Top 55%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
LG Lion Group: 1 patents #229 of 587Top 40%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
HI Harima Chemicals, Incorporated: 1 patents #79 of 188Top 45%
Overall (All Time): #117,927 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
4481327 Rubber compositions comprisining an alkadiene sulfone an carbon black Masaki Ogawa, Akira Tsuchikura 1984-11-06
4468496 Polybutadiene rubber compositions Yasumasa Takeuchi, Mitsuhiko Sakakibara, Nobuo Tagata, Masaki Ogawa, Shigeru Tomihira 1984-08-28
4433107 Polyisoprene rubber compositions Yasumasa Takeuchi, Mitsuhiko Sakakibara, Nobuo Tagata, Masaki Ogawa, Shigeru Tomihira 1984-02-21
4421477 Combustion wick Kinichi Adachi, Hisanori Shimoda, Yoshimi Ohmukai 1983-12-20
4396051 Pneumatic tires Masaki Ogawa 1983-08-02
4328133 Organic micro-fiber reinforced rubber compositions Masaki Ogawa, Mikihiko Ikegami 1982-05-04