Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6251561 | Optical information recording medium and manufacturing method thereof | Shoichi Kawai, Naoki Sano, Ryoichi Sugawara | 2001-06-26 |
| 4962411 | Semiconductor device with current detecting function | Norihito Tokura, Hiroyasu Ito, Hirohiko Saito, Kunihiko Hara | 1990-10-09 |
| 4653443 | Thermoelectric generating composite functioning apparatus | Takeshi Fukazawa, Naoto Okabe, Kunihiko Hara | 1987-03-31 |