Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871793 | Polyphenylene sulfide resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis (benzotriazolylphenols) | Yutaka Nakahara, Atsushi Nishimura | 1989-10-03 |
| 4840243 | Four-wheel steering vehicle | Shigefumi Hirabayashi | 1989-06-20 |
| 4819502 | Flywheel device | Hiroshi Kumatani, Masayuki Miyazaki, Kazuo Tezuka | 1989-04-11 |
| 4812498 | Polycarbonate resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis(benzotriazolyl phenols) | Yutaka Nakahara, Atsushi Nishimura | 1989-03-14 |