Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849586 | Slip ring having a rotatable insulation cover | Kiichi Yamaguchi, Hironori Kato | 1989-07-18 |
| 4824396 | Electrical connection apparatus | Kunihiko Sasaki, Kiichi Yamaguchi, Tsumoru Oka, Takasi Ohya, Mituaki Shinraku +1 more | 1989-04-25 |
| 4797665 | X-Y position input device | Junichi Hosogoe | 1989-01-10 |