Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5275637 | Method of manufacturing a glass optical part | Bunryo Sato, Hiroe Tanaka, Takeshi Nomura, Hiroyuki Kubo | 1994-01-04 |
| 5250099 | Glass molding process and molding apparatus for the same | Hiroyuki Kubo, Takeshi Nomura, Hiroe Tanaka, Bunryo Sato | 1993-10-05 |
| 5227917 | Lens and method for producing the same | Hiroyuki Kubo, Takeshi Nomura, Hiroe Tanaka, Bunryo Sato | 1993-07-13 |
| 5168404 | Optical element and glass blank for producing the optical element | Sunao Miyazaki, Tetsuo Kuwabara | 1992-12-01 |