Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525110 | Polysiloxane-containing rubber composition | Fumito Yatsuyanagi, Kazunori Ishikawa, Yoshiaki Hashimura, Tetsuji Kawazura | 2003-02-25 |
| 6431236 | Pneumatic tire using long afterglow phosphorescent rubber composition | Daisuke Kanenari | 2002-08-13 |
| 6402867 | Process of production of pneumatic tire | Kazuto Yamakawa, Jiro Watanabe, Noriaki Kuroda, Gou Kawaguchi | 2002-06-11 |
| 6337361 | Polysiloxane-containing rubber composition | Fumito Yatsuyanagi, Kazunori Ishikawa, Yoshiaki Hashimura, Tetsuji Kawazura | 2002-01-08 |
| 6329460 | Polysiloxane composition and rubber composition and resin composition | Kazunori Ishikawa, Fumito Yatsuyanagi, Naoya Adachi | 2001-12-11 |
| 6180703 | Rubber composition | Hidekazu Onoi, Kazunori Ishikawa | 2001-01-30 |
| 6177505 | Polysiloxane-containing rubber composition | Fumito Yatsuyanagi, Kazunori Ishikawa, Yoshiaki Hashimura, Tetsuji Kawazura | 2001-01-23 |
| 6136123 | Process of production of pneumatic tire | Kazuto Yamakawa, Jiro Watanabe, Noriaki Kuroda, Gou Kawaguchi | 2000-10-24 |
| 6121347 | Polysiloxane-containing rubber composition | Fumito Yatsuyanagi, Kazunori Ishikawa, Yoshiaki Hashimura, Tetsuji Kawazura | 2000-09-19 |
| 6084015 | Rubber composition | Keisuke Chino, Fumito Yatsuyanagi, Masahiro Ikawa, Masayoshi Ito | 2000-07-04 |
| 6077899 | Process for production of rubber composition | Fumito Yatsuyanagi, Tetsuji Kawazura | 2000-06-20 |
| 6060552 | Rubber composition containing modified polyisobutylene rubber | — | 2000-05-09 |
| 6033597 | Polysiloxane-containing rubber composition | Fumito Yatsuyanagi, Kazunori Ishikawa, Yoshiaki Hashimura, Tetsuji Kawazura | 2000-03-07 |
| 5992486 | Laminate gas barrier layer for pneumatic tires | Shogo Katsuki, Kazuto Yamakawa, Jiro Watanabe | 1999-11-30 |
| 5962575 | Rubber composition containing carbon black | Fumito Yatsuyanagi, Tetsuji Kawazura | 1999-10-05 |
| 5938869 | Pneumatic tire with air permeation preventive layer | Kazuto Yamakawa, Jiro Watanabe | 1999-08-17 |
| 5851323 | Pneumatic tire with air permeation preventive layer | Kazuto Yamakawa, Jiro Watanabe, Zenichiro Shida, Yoshiaki Hashimura | 1998-12-22 |
| 5834552 | Rubber composition and process for producing thereof | Tetsuji Kawazura | 1998-11-10 |
| 5679728 | Surface-treated carbon black and rubber composition containing same | Tetsuji Kawazura, Kouichi Ikai, Fumito Yatsuyanagi, Masayuki Kawazoe | 1997-10-21 |
| 5603786 | Pneumatic tire with 1.times.2 steel belt cords | Yukio Tozawa, Susumu Imamiya, Hisao Kato, Issei Nakakita | 1997-02-18 |
| 5252405 | Rubber composition for coating steel cords and rubber product using the same | Kazuyoshi Kayama, Tetsuji Kawazura, Hideyuki Oishi, Yoshihisa Ogihara, Humiaki Yoneyama | 1993-10-12 |
| 4824897 | Rubber compositions for steel tires | Yasuhiro Ishikawa | 1989-04-25 |