Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6081046 | Power supply circuit for microcomputer | Bong-An Jang | 2000-06-27 |
| 4992893 | Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus | Hiroshi Kanai, Takeo Sonobe, Seiichi Hayashi, Kazuo Kikuchi, Yasumasa Saito +7 more | 1991-02-12 |
| 4622603 | Head positioning system for magnetic recording/playback apparatus | Sinji Mizunuma, Shigemitsu Higuchi | 1986-11-11 |
| 4385296 | Remote-controlled automatic control apparatus | Toshio Tsubaki, Shigeru Matsuoka, Kenji Nakamura | 1983-05-24 |
| 4331184 | Developer quality monitoring device | Isamu Terashima | 1982-05-25 |