Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5966279 | Rotary magnetic head inspection method | Sadao Shimura | 1999-10-12 |
| 5882554 | Method for exposing optical master disk | — | 1999-03-16 |
| 5844878 | Method of making an optical disk master | — | 1998-12-01 |
| 5793713 | Magneto-optical recording device and method for judging the recorded signals by detecting magnetization states | — | 1998-08-11 |
| 5777980 | Optical disk recording apparatus capable of reducing cross-talk between pre-pits and adjacent tracks | — | 1998-07-07 |
| 5648852 | Laser beam type distance measuring device | Masahiko Kato, Hiroshi Matsuzaki | 1997-07-15 |
| 5493388 | Distance measuring device | — | 1996-02-20 |
| 5309678 | Tension adjusting apparatus | — | 1994-05-10 |