Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875943 | Flexible photovoltaic device | Yoshihiro Hamakawa, Yoshihisa Tawada, Masanobu Izumina | 1989-10-24 |
| 4869976 | Process for preparing semiconductor layer | Yoshihisa Tawada, Takeo Okamoto | 1989-09-26 |
| 4862227 | Semiconductor device and its manufacturing method | Shinji Kuwamura, Yoshihisa Tawada | 1989-08-29 |
| 4825806 | Film forming apparatus | Yoshihisa Tawada | 1989-05-02 |
| 4805504 | Safety cover for miter saw | Fusao Fushiya, Nobuhiro Inoue | 1989-02-21 |