Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837757 | Optical recording/reproducing device | Yoshiaki Ikeda, Ken Ohsima | 1989-06-06 |
| 4819220 | Optical information recording and reproducing apparatus | Tasuhiro Miyazaki, Toshio Tsurukawa, Shohei Kobayashi | 1989-04-04 |
| 4785439 | Optical memory accessing and tracking apparatus with pickup and lens servoing during tracking | Yoshiaki Ikeda, Ken Ohshima | 1988-11-15 |
| 4761773 | Tracking control apparatus | Yoshiaki Ikeda, Makie Morota | 1988-08-02 |
| 4718051 | Optical beam tracking system for use in optical information recording and/or reproducing apparatus | Ken Ohshima, Jun Sakashita | 1988-01-05 |
| 4706234 | Head feed control apparatus | — | 1987-11-10 |
| 4644514 | Head drive control apparatus | Ken Ohshima, Masaharu Sakamoto | 1987-02-17 |
| 4460033 | Method for continuous casting of steel | Osamu Tsubakihara, Koji Kagaya, Katsuhiro Kawashima | 1984-07-17 |
| 4186089 | Method and apparatus for dewatering of sludgy substance | — | 1980-01-29 |