Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4486849 | Computer for calculating compound interest | Isao Harigaya | 1984-12-04 |
| 4276606 | Date data computer | Isao Harigaya | 1981-06-30 |
| 4209850 | Electronic apparatus | Shigemitsu Tazaki, Tsunenori Souma, Tadao Kusumoto | 1980-06-24 |