Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733124 | Contact lens | Kazuya Miyamura, Tadashi Sawano | 2004-05-11 |
| 6659607 | Contact lens | Kazuya Miyamura, Tadashi Sawano, Shigeyasu Nagai, Asaki Suzaki, Hideaki Kondo | 2003-12-09 |
| 5502086 | Water-absorptive contact lens and process for its production | Haruyuki Hiratani | 1996-03-26 |
| 5426133 | Water-absorptive contact lens | Yasuhito Hishida, Masanori Kadoya, Tsuyoshi Watanabe, Noriko Iwata | 1995-06-20 |
| 4856656 | Multi-layer film and package | Takeo Hayashi, Masahiro Fujimoto | 1989-08-15 |
| 4723471 | Keyboard device | — | 1988-02-09 |