Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6707780 | Prepit detecting apparatus | — | 2004-03-16 |
| 6639882 | Pre-pit detecting apparatus | — | 2003-10-28 |
| 6519214 | Prepit detecting apparatus | — | 2003-02-11 |
| 6466533 | Prepit detection unit | Junji Tanaka | 2002-10-15 |
| 6337838 | Prepit detection unit | Junji Tanaka | 2002-01-08 |
| 6091682 | Apparatus for and method of detecting pre-pit information | — | 2000-07-18 |
| 5730892 | Recycled slide gate plate | Shigeki Niwa, Etsuhiro Hasebe, Kazuo Itoh, Toshihiro Indoh, Kohji Saitoh +2 more | 1998-03-24 |
| 5297113 | Jump operation in two-head-type video disc player | Takeo Tobe | 1994-03-22 |
| 5035919 | Repairing material of a brick and a method of repairing a brick | Takao Sugino, Toshio Kawamura, Masamichi Asai, Hiroshi Yamada, Kenichi Mukoyama +1 more | 1991-07-30 |
| 4970180 | Repairing material of a brick | Takao Sugino, Toshio Kawamura, Masamichi Asai, Hiroshi Yamada, Kenichi Mukoyama +1 more | 1990-11-13 |