Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835756 | Optical memory apparatus using an optical disc having guide-grooves of V-shape and predetermined optical depth and access method therefor | Toshimitsu Kaku, Takeshi Maeda, Shigeru Nakamura, Kazuo Shigematsu, Yoshito Tsunoda | 1989-05-30 |
| 4815943 | Variable displacement wobble plate compressor with capacity control valve | Kenichi Kawashima, Kenji Emi, Akira Tezuka, Kosaku Sayo, Toshikazu Ito +9 more | 1989-03-28 |
| 4794736 | Arrangement for mechanically and accurately processing a workpiece with a position detecting pattern or patterns | Shigehiro Fuwa, Naoki Fujii, Toshikazu Hatsuse, Toshiaki Wada, Junichi Nakaoka | 1989-01-03 |