Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8404604 | Optical glass | Tatsuo Hidaka, Junichi Nakamura, Yoshitaka Mayumi, Hidekazu Hashima, Kohei Fukumi +1 more | 2013-03-26 |
| 8298974 | Optical glass | Tatsuo Hidaka, Junichi Nakamura, Takuro Ikeda, Hidekazu Hashima, Kohei Fukumi +1 more | 2012-10-30 |
| 6750167 | Crystallized glass | Takahiro Matano, Akihiko Sakamoto | 2004-06-15 |
| 5392375 | Glass having refractive index distribution | Kenichi Kinugawa, Jun Matsuoka, Kohei Fukumi, Isao Kondoh, Saburo Kose +2 more | 1995-02-21 |
| 5261938 | Process for producing rod glass having refractive index distribution | Kenichi Kinugawa, Jun Matsuoka, Kohei Fukumi, Isao Kondoh, Saburo Kose +2 more | 1993-11-16 |