Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |