Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537480 | Motor-driven subjective phorometer | Takeshi Yamada, Masahiro Jinbo | 1985-08-27 |
| 4217736 | Method for automatically grinding lenses | Akira Ikeda, Masayoshi Lee | 1980-08-19 |
| 4203666 | Lensmeter | Tadao Ii, Takashi Tanaka | 1980-05-20 |