Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7672197 | Optical pickup device and manufacturing method thereof | Chikashi Yoshinaga, Yasuhide Kogo | 2010-03-02 |
| 7508746 | Optical pickup device | Hiroyuki Negishi, Minoru Sato | 2009-03-24 |
| 4447264 | Production of magnetic powder | Shintaro Suzuki, Yoshimi Moriya | 1984-05-08 |
| 4404024 | Production of magnetic powder | Shintaro Suzuki, Yoshimi Moriya | 1983-09-13 |
| 4384892 | Production of magnetic powder | Shintaro Suzuki, Yoshimi Moriya, Yuichi Omote | 1983-05-24 |
| 4306921 | Production of magnetic powder | Shintaro Suzuki, Yoshimi Moriya | 1981-12-22 |
| 4274865 | Production of magnetic powder | Shintaro Suzuki, Yoshimi Moriya, Yuichi Omote | 1981-06-23 |