Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7828466 | Light-emitting device | Sueyoshi Daimon, Yukiharu Suzuki | 2010-11-09 |
| 4748081 | Magnetic recording medium having an improved magnetic layer using particulate alpha-Fe.sub.2 O.sub.3 and carbon black | Osamu Kobayashi, Yukio Matsumoto, Hitoshi Takita, Mutsumu Kurihara | 1988-05-31 |
| 4645724 | Magnetic recording medium comprising a specific type of lubricant | Kumiko Ojima, Yukio Matsumoto | 1987-02-24 |
| 4547425 | Magnetic recording media | — | 1985-10-15 |