Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4484815 | Spectrophotometer | Osamu Akiyama, Yoshio Tsunazawa | 1984-11-27 |
| 4455097 | Spectrophotometer | Osamu Akiyama, Rikuo Hira, Takashi Nishimura | 1984-06-19 |
| 4444499 | Detector for use in optical measuring instruments | Osamu Akiyama | 1984-04-24 |