Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5982176 | Geomagnetic direction sensor | Yoshihisa Kawamura, Kazuo Kurihara, Zenkichi Nakamura, Toshio Aizawa, Hideo Suyama | 1999-11-09 |
| 5287334 | Magneto-optical pickup apparatus and magneto-optical recording/reproducing apparatus | Koji Sasaki, Tetsu Watanabe, Tamotsu Yamagami, Yoshio Aoki | 1994-02-15 |