Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6556775 | Image and sound reproduction system | — | 2003-04-29 |
| 5197051 | Device for specifying and calculating a play time of an optical disk player | Haruhisa Tomoda | 1993-03-23 |
| 5029153 | Optical disk reproducing device | Haruhisa Tomoda | 1991-07-02 |
| 5008872 | Optical disc reproduction apparatus which detects maximum audio signal level recorded on an optical disk | Haruhisa Tomoda | 1991-04-16 |
| 5008875 | Optical disc reproducing apparatus having display indicating program status | Haruhisa Tomoda | 1991-04-16 |
| 4991159 | Time display device for an apparatus for playing information recorded on an optical disk | Haruhisa Tomoda | 1991-02-05 |
| 4916682 | Optical disk apparatus with remaining time specification | Haruhisa Tomoda | 1990-04-10 |
| 4592088 | Speaker apparatus | — | 1986-05-27 |
| 4387275 | Speaker and speaker system | Tatsuo Fukuyama, Toshiyuki Mizutani | 1983-06-07 |
| 4243839 | Transducer with flux sensing coils | Kenichi Takahashi, Tatsuo Fukuyama, Takafumi Ueno, Shinichiro Ishii | 1981-01-06 |