Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6016238 | Spindle motor for driving disk | Shouichi Yoshikawa, Masahiro Naba | 2000-01-18 |
| 4644157 | Optical rotation detecting apparatus | Kuniichi Ozawa, Yasuhiro Goto, Hiromi Nakase | 1987-02-17 |