Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888737 | Semiconductor memory device | — | 1989-12-19 |
| 4856382 | Automatic shift transmission for vehicles | Masao Nishikawa, Takashi Aoki, Yukihiro Fukuda | 1989-08-15 |
| 4810838 | Frequency coupling position coordinates determination apparatus | Kazuo Ichinokawa, Tadashi Otsuka | 1989-03-07 |
| 4803737 | Optical digitizer | Kazuo Ichinokawa | 1989-02-07 |