Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7220064 | Coupling optical system for optical communications | Masao Mori, Makoto Oomura, Yoko Yamamoto, Toshiaki Katsuma | 2007-05-22 |
| 6781771 | Objective lens for optical recording medium and optical pickup device using it | Toshiaki Katsuma | 2004-08-24 |