Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9228930 | Oscillating type physical property measuring apparatus and method | Takashi Iwakura | 2016-01-05 |
| 4453167 | Printer with ink correcting ribbon | — | 1984-06-05 |
| D271589 | Typewriter | Takashi Hirata, Yoshihiro Kobata, Masahiro Rachi | 1983-11-29 |
| D263967 | Desk top electronic calculator | Masaaki Sakai | 1982-04-20 |
| D263602 | Desk-top electronic calculator | Eiichi Yoshioka | 1982-03-30 |
| D263151 | Desk top electronic calculator | Takashi Hirata, Takashi Yomo | 1982-02-23 |
| D260776 | Desk top electronic calculator | Eiichi Yoshioka | 1981-09-15 |
| D258666 | Combined electronic calculator and clock | Eiichi Yoshioka | 1981-03-24 |
| 4218522 | Battery mounting device | — | 1980-08-19 |