Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12232660 | Bathtub apparatus | Hiroshi Tsuboi, Koji Sonoda, Kei WATANABE, Yu ICHIKAWA, Masayoshi ENOKI +5 more | 2025-02-25 |
| 7369224 | Surface inspection apparatus, surface inspection method and exposure system | Takeo Oomori, Kazuhiko Fukazawa | 2008-05-06 |
| 5602824 | Optical disk capable of recording information on both land and groove tracks | Hirohsi Ooki | 1997-02-11 |
| 5206844 | Magnetooptic recording medium cartridge for two-sided overwriting | — | 1993-04-27 |
| 5131744 | Mirror rotation angle detection mechanism | Hisaharu Kaneko | 1992-07-21 |
| 4853923 | Maneto-optical recording apparatus with path length compensated dual photo-electric conversion | Tomoaki Yamada | 1989-08-01 |