Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6519212 | Method for setting optimal reproduction power level in domain wall displacement magneto-optical recording device | — | 2003-02-11 |
| 6084830 | Signal reproducing apparatus for reproducing information by moving magnetic walls | Tsutomu Shiratori | 2000-07-04 |
| 5949747 | Test recording method and optical information recording/reproducing apparatus for determining an optimum power of the light output from a light source in erasing pieces of information recorded on a land and groove of a recording medium | Akira Miyashita | 1999-09-07 |
| 5815477 | Write test method for use in recording process for recording information by modulating the power of a laser light thereby forming a high-temperature state and a low-temperature state on a recording medium | Shunpei Kimura, Tsutomu Shiratori, Akira Miyashita | 1998-09-29 |
| 5592456 | Information reproducing apparatus and method | Akira Miyashita | 1997-01-07 |
| 5517471 | Method and apparatus for verifying recording data and for determining recording error using a detected light amount | Takatoshi Suzuki, Masakuni Yamamoto | 1996-05-14 |
| 5410527 | Information recording/reproducing apparatus including setting optimum recording condition or reproducing condition | — | 1995-04-25 |
| 5289451 | Optical information recording/reproduction apparatus including means for detecting the type of recording medium | Shigeru Aoi, Makoto Shiho, Yasuo Suzuki, Takehiko Shibata, Masaharu Tsukada +2 more | 1994-02-22 |
| 4918677 | Information recording/reproducing apparatus including a plurality of recording or reproducing rates | Takehiko Shibata | 1990-04-17 |
| 4899291 | Image processing system | Masaharu Tsukada, Shigeru Aoi | 1990-02-06 |
| 4763167 | Image forming apparatus | Tsutomu Watanabe, Nobuhiro Kasama, Masafumi Wataya, Yoshihiko Hirose, Yasuo Suzuki | 1988-08-09 |
| 4667246 | Image processing system | — | 1987-05-19 |