Issued Patents 1989
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888306 | Method of manufacturing a bipolar transistor | Shigeru Komatsu | 1989-12-19 |
| 4884079 | Image forming apparatus and driving method therefor | Satoshi Omata, Yoshiyuki Osada, Yutaka Inoue, Tadashi Yamakawa, Hiroshi Satomura | 1989-11-28 |
| 4883780 | Aluminum nitride sintered body and preparation thereof | Mituo Kasori, Kazuo Shinozaki, Kazuo Anzai, Akihiko Tsuge, Hiroshi Imagawa +3 more | 1989-11-28 |
| 4869861 | Process for producing a shaped and drawn aromatic imide polymer article | Tetsuji Hirano, Tadao Muramatsu, Yasuji Narahara | 1989-09-26 |
| 4868275 | Preparation of poly (arylene sulfide) from dihalo aromatic hydroxyl compound | Toshikazu Kato, Satoshi Tomagou, Noriaki Emura | 1989-09-19 |
| 4863340 | System for loading products of sheet glass | Hiroaki Masunaga, Masaaki Sakamoto, Norihiko Higashide | 1989-09-05 |
| 4853299 | Silicon carbide sintered body and method of manufacturing the same | Toshiaki Mizutani, Takeyuki Yonezawa, Akihiko Tsuge, Yoshiyuki Ohnuma | 1989-08-01 |
| 4845190 | Process for preparing polyarylene sulfides with recovery of carboxylic acid | Toshikazu Kato, Noriaki Emura | 1989-07-04 |
| 4840986 | Process for producing a polyarylene sulfide | Toshikazu Kato, Satoshi Tomagou, Noriaki Emura | 1989-06-20 |
| 4839217 | Aromatic polyimide film | Kanzo Tabata, Tadao Muramatsu, Yasuji Narahara | 1989-06-13 |
| 4830467 | A driving signal generating unit having first and second voltage generators for selectively outputting a first voltage signal and a second voltage signal | Yoshiyuki Osada, Yutaka Inaba | 1989-05-16 |
| 4827449 | Semiconductor device | — | 1989-05-02 |
| 4821562 | Signal monitoring apparatus | — | 1989-04-18 |
| 4820801 | Polyphenylene sulfide containing covalently bonded chlorine in a reduced amount | Toshikazu Kato, Masaaki Otsuru, Noriaki Emura | 1989-04-11 |
| 4816501 | Heat-sensitive color developable composition | Tomohiko Nomura, Hitoshi Shimizu, Yoshimi Ishizuka, Hiroshi Hirano | 1989-03-28 |
| 4816819 | Display panel | Masahiko Enari, Shinichi Yamashita, Satoshi Omata, Mitsutoshi Kuno, Yoshiyuki Osada | 1989-03-28 |
| 4795500 | Photovoltaic device | Yasuo Kishi, Hiroyuki Tanaka | 1989-01-03 |
| 4795239 | Method of driving a display panel | Shinichi Yamashita, Hideo Kanno, Atsushi Mizutome | 1989-01-03 |