Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9007552 | Liquid crystal display device | Takayuki Hayano, Masayuki Tsuji | 2015-04-14 |
| 6271934 | Image forming apparatus which can correct an image signal conversion table | — | 2001-08-07 |
| 4681975 | Polyester | Ryuichi Hasegawa | 1987-07-21 |
| 4596886 | Polyester containing impure 1,2-butanediol | Ryuichi Hasegawa | 1986-06-24 |