KK

Kazuyoshi Kayama

The Yokohama Rubber Co.: 5 patents #270 of 1,136Top 25%
DC Dainippon Ink And Chemicals: 2 patents #241 of 1,002Top 25%
NC Nippon Zeon Co.: 1 patents #307 of 609Top 55%
Overall (All Time): #1,058,359 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5252405 Rubber composition for coating steel cords and rubber product using the same Hiroyuki Kaido, Tetsuji Kawazura, Hideyuki Oishi, Yoshihisa Ogihara, Humiaki Yoneyama 1993-10-12
5194485 Rubber composition for tire tread Yasushi Kikuchi, Masayoshi Daio, Hideyuki Oishi, Shuichi Akita, Fumitoshi Suzuki 1993-03-16
5179154 Rubber compositions for tire tread Takao Muraki, Kinya Kawakami 1993-01-12
5098946 Promotor for bonding between rubber and steel cord, and rubber composition and rubber product containing the bonding promotor Tetsuji Kawazura, Yoshihisa Ogihara, Fumiaki Yoneyama 1992-03-24
4906697 Rubber compositions for tire treads Yasushi Kikuchi, Takao Muraki 1990-03-06