Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6373991 | Method of and apparatus for interpolating gradation levels of image | Shigeaki Shimazu, Tetsuo Asano | 2002-04-16 |
| 5978535 | Semiconductor laser module, optical fiber amplifier and optical transfer system | Masahiro Mitsuda, Tomoaki Uno | 1999-11-02 |
| 5949913 | Method and apparatus for modifying multi-tone image | Shigeaki Shimazu | 1999-09-07 |
| 5724454 | Method and apparatus for correcting a multi-tone image | Shigeaki Shimazu | 1998-03-03 |