Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848225 | Pressure fixing roller and a pressure fixing device | Takashi Arai, Ikuo Fuchi | 1989-07-18 |
| 4838710 | Static pressure gas bearing assembly | Jiro Ohta, Sadamu Tozawa, Koichi Matsushita | 1989-06-13 |
| 4820793 | Method of preparing aromatic polyamides and polybenzoxazoles | Yoshio Imai, Masaaki Kakimoto, Yoshiyuki Oishi | 1989-04-11 |
| 4806618 | Aromatic polyethers having biphenylfluorene group | Yoshio Imai, Masaaki Kakimoto, Toshio Koishi | 1989-02-21 |