Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7371703 | Optical glass suffering little change in refractive index by radiation of light | Akira Masumura, Satoru Matsumoto, Tatsuya Senoo | 2008-05-13 |
| 7217672 | Optical glass suffering little change in refractive index by radiation of light | Akira Masumura, Satoru Matsumoto, Tatsuya Senoo | 2007-05-15 |
| 7196027 | Optical glass suffering little change in refractive index by radiation of light | Akira Masumura, Satoru Matsumoto, Tatsuya Senoo | 2007-03-27 |
| 6468935 | Optical glass | Yoshio Mori | 2002-10-22 |
| 5858898 | Optical glass having a negative anomalous dispersion | Michiko Morishita | 1999-01-12 |
| 5320987 | Optical glass | Tatsuya Senoo, Katsuhiko Yamaguchi | 1994-06-14 |
| 5300467 | Optical glass | Futoshi Ishizaki, Hiroshi Shishido, Katsuhiko Yamaguchi | 1994-04-05 |