Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5976175 | Fiber optic laser conducting probe for photodynamic therapy | Toru Hirano, Akio Tanaka, Masami Ohsawa | 1999-11-02 |
| 5579423 | Optical fiber laser device | Akio Tanaka, Toru Hirano, Masami Ohsawa | 1996-11-26 |