Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680373 | Reproducing apparatus for magneto-optical recording device | Masatoshi Sato, Jun Saito | 1997-10-21 |
| 5539709 | Magnetooptical recording method and apparatus using multi-layered media | Masatoshi Sato, Jun Saito | 1996-07-23 |
| 5475657 | Overwrite capable magnetooptial recording apparatus | Masatoshi Sato, Jun Saito | 1995-12-12 |
| 5458987 | Multilayered magnetooptical recording medium | Masatoshi Sato, Jun Saito | 1995-10-17 |
| 5440531 | Magneto-optical reproducing method | Masatoshi Sato, Jun Saito | 1995-08-08 |
| 5389455 | Over-write capable magnetooptical recording medium having C/N ratio exceeding 53 dB | Jun Saito, Tetsuo Hosokawa, Akio Okamuro, Hiroyuki Matsumoto, Haruhisa Iida +1 more | 1995-02-14 |
| 5367507 | Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor | Masatoshi Sato, Jun Saito | 1994-11-22 |
| 5293291 | Optical integrated device for magneto-optical reproducing head | Hiroshi Ohki, Masaaki Doi | 1994-03-08 |
| 5239524 | Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor | Masatoshi Sato, Jun Saito | 1993-08-24 |
| 5204193 | Recording magnetooptical recording medium | Masatoshi Sato | 1993-04-20 |
| 5140654 | Optical waveguide device for polarization rotation | Hiroshi Ohki, Masaaki Doi | 1992-08-18 |
| 5014252 | Over write capable magnetooptical recording method using two beams, and magnetooptical recording apparatus therefor | Masatoshi Sato | 1991-05-07 |
| 4855975 | Over write capable magnetooptical recording method using two beams, and magnetooptical recording apparatus therefor | Masatoshi Sato | 1989-08-08 |
| 4853912 | Process and apparatus for simultaneous erasure and recording in magneto-optical recording | Masatoshi Sato | 1989-08-01 |
| 4753853 | Double-layered magnetooptical recording medium | Masatoshi Sato | 1988-06-28 |
| 4433901 | All solid type electrochromic display element | Yosuke Takahashi, Toshikatsu Kasui, Tatsuo Niwa, Tsuneo Sukegawa | 1984-02-28 |
| 4350414 | All solid state electrochromic device | Yosuke Takahashi, Toshikatsu Kasui, Tatsuo Niwa | 1982-09-21 |