Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6191226 | Polybutadiene rubber and impact-resistant aromatic vinyl resin compositions | Hiroaki Matsuda | 2001-02-20 |
| 5294233 | Additive for organic medium or thermoplastic polymer | Shizuo Kitahara, Hiroyuki Watanabe, Takuji Kishimoto, Tetuya Toyoshima, Takafumi Kawanaka | 1994-03-15 |
| 5115006 | Rubber composition | Hiroyuki Watanabe, Shuichi Akita, Kumiko Kohtaki | 1992-05-19 |
| 5001196 | Process for preparation of diene type polymer rubber | Takafumi Kawanaka, Hiroyuki Watanabe, Shuichi Akita | 1991-03-19 |
| 4647625 | Process for modifying conjugated diene polymers | Mitsuyoshi Aonuma, Hiroyuki Watanabe, Haruki Kawada, Akio Ueda, Shuichi Akita +2 more | 1987-03-03 |
| 4616069 | Process for making diene polymer rubbers | Hiroyuki Watanabe, Toshio Kase, Shuichi Akita | 1986-10-07 |
| 4614771 | Process for making diene copolymer rubbers | Hiroyuki Watanabe, Toshio Kase, Shuichi Akita | 1986-09-30 |