Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472758 | Optical recording medium for short-wavelength of laser beam and read/write/erase method using the medium | Motoyoshi Murakami | 1995-12-05 |
| 5422874 | Optical recording disk, and recording/reading apparatus using same | Norio Miyatake, Yuuichi Fukamachi, Yoshihiko Kudoh, Yasumori Hino | 1995-06-06 |
| 5391431 | Magneto-optical recording medium | Yoshihiko Kudoh | 1995-02-21 |
| 5341359 | Abnormality detection of a recording medium in a magneto-optical recording system | Norio Miyatake, Yasumori Hino | 1994-08-23 |
| 5247495 | Optical magnetic disk with separate regions provided on it | Norio Miyatake, Yasumori Hino | 1993-09-21 |
| 4497870 | Magneto-optical recording medium | Yoshihiko Kudo, Hidetsugu Kawabata, Noriaki Hara, Akira Muto | 1985-02-05 |