Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7539087 | Optical disk apparatus | — | 2009-05-26 |
| 7164627 | Optical pickup actuator circuit having coil protection feature | — | 2007-01-16 |
| 6036478 | Fire-lighting device | — | 2000-03-14 |
| 5408987 | Portable heater | Hideo Mifune, Tomio Nitta, Masato Seki, Shinichi Okawa, Yosimitu Kaga +2 more | 1995-04-25 |