Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8285430 | Controlling device for railway electric car | Masataka Yabuuchi, Hidetoshi Kitanaka | 2012-10-09 |
| 8280568 | Electric train car controlling device | Masataka Yabuuchi | 2012-10-02 |
| 5264911 | Laser power measuring jig for optical disk unit | Kazuhiko Nakane, Masayoshi Shimamoto, Yoshihiro Kiyose, Isao Watanabe, Masami Horita +4 more | 1993-11-23 |
| 4955009 | Optical disk drive apparatus having counter disable at seek start-up | Masaharu Ogawa | 1990-09-04 |
| 4901299 | Optical disk reading head controller | — | 1990-02-13 |
| 4887254 | Optical disk drive device for positioning a carriage to a retract position | Katsuaki Kamitsu, Masaharu Ogawa | 1989-12-12 |
| 4835752 | Device for driving and controlling optical head for use in optical disk system | Shigeo Hayashi, Masaharu Ogawa, Osamu Itou, Isao Watanabe, Kunimaro Tanaka | 1989-05-30 |
| 4788421 | Apparatus for controlling relative movement of an optical head to an optical disk with velocity detection | Masaharu Ogawa | 1988-11-29 |