Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10530198 | R-T-B based sintered magnet and motor | Naoto TSUKAMOTO, Makoto Iwasaki, Takahiro Kawashima, Chikara Ishizaka | 2020-01-07 |
| 9817432 | Microcomputer and method for correcting clock thereof | — | 2017-11-14 |
| 4481852 | Sound generating circuit for timepiece | Shunichi Makuta, Katsuhiko Takebe | 1984-11-13 |
| 4371268 | Time correcting circuit for timepiece with electrochromic display | Shinji Yamada | 1983-02-01 |