Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4777068 | Optical recording medium | Hiroshi Omata, Shigeharu Iijima, Katsuhiko Takano, Masaaki Matsushima, Kazuoki Honguu +5 more | 1988-10-11 |
| 4741967 | Magnetic recording medium | Satoshi Yoshihara, Shigeharu Iijima, Katsuhiko Takano, Mitsuharu Sawamura, Masaaki Matsushima +2 more | 1988-05-03 |
| 4710418 | Optical recording medium | Katsuhiko Takano, Satoshi Yoshihara, Shigeharu Iijima, Masaaki Matsushima, Hiroyoshi Kishi | 1987-12-01 |
| 4618537 | Recording medium | Katsuhiko Takano, Shigeharu Iijima, Satoshi Yoshihara, Masaaki Matsushima, Hiroyoshi Kishi | 1986-10-21 |
| 4578322 | Recording medium | Mitsuharu Sawamura, Susumu Ito, Masaaki Matsushima, Hiroyoshi Kishi, Satoshi Yoshihara +2 more | 1986-03-25 |