Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580358 | Method for making a electrolytic capacitor | Hitoshi Narusawa | 1996-12-03 |
| 5119249 | Tracking error detection circuit using pilot signals during tape reproduction | — | 1992-06-02 |
| 5085379 | Method of controlling reel drive | Keiji Sano | 1992-02-04 |
| 5072434 | Recording medium transducing light spot moving velocity detection circuit | Tosihiko Otomo | 1991-12-10 |
| 5065080 | Control system | — | 1991-11-12 |
| 5057705 | Clock formation circuit with phase locked loop control | — | 1991-10-15 |
| 5052032 | Clock formation circuit | — | 1991-09-24 |
| 5038334 | Optical spot position detection device for an optical disk apparatus | Tosihiko Otomo | 1991-08-06 |
| 5018125 | Signal processing circuit for detecting a tracking error for an optical disk apparatus | Toshiko Otomo | 1991-05-21 |
| 5013901 | Tracking control method for eliminating a tracking error due to a movement of an objective lens | — | 1991-05-07 |
| 4939756 | Two-phase encoder circuit | — | 1990-07-03 |
| 4788606 | Tape feed control device | — | 1988-11-29 |
| 4659972 | Servo system for positioning and driving a movable member using two reference voltages | Akio Terada | 1987-04-21 |
| 4542371 | Method of converting a digital signal into an analog signal and a converter therefor | — | 1985-09-17 |
| 4536743 | Method of converting a digital signal into an analog signal and a digital-to-analog converter therefor | — | 1985-08-20 |
| 4467319 | Signal conversion circuit | — | 1984-08-21 |