Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680040 | System for detecting incorrect phase rotation | Yuushin Yamamoto | 1997-10-21 |
| 5005141 | Phase-locked loop circuit | Kazunori Sanada | 1991-04-02 |
| 4947310 | Parallel operating system for alternate current output converters | Takao Kawabata | 1990-08-07 |
| 4734655 | Digital rotation detecting apparatus | — | 1988-03-29 |
| 4438487 | Digital phase-shifting circuit | — | 1984-03-20 |