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, Naoyuki Kitamura +1 more | 2013-03-26 |
| 8298974 | Optical glass | Tatsuo Hidaka, Junichi Nakamura, Takuro Ikeda, Hidekazu Hashima, Naoyuki Kitamura +1 more | 2012-10-30 |
| 5763340 | Method for production of SiO.sub.2 glass material having regions changed in light refractive index and SiO.sub.2 glass material produced by the method | Junji Nishii, Akiyoshi Chayahara, Kanenaga Fujii, Hiroshi Yamanaka | 1998-06-09 |
| 5392375 | Glass having refractive index distribution | Naoyuki Kitamura, Kenichi Kinugawa, Jun Matsuoka, Isao Kondoh, Saburo Kose +2 more | 1995-02-21 |
| 5261938 | Process for producing rod glass having refractive index distribution | Naoyuki Kitamura, Kenichi Kinugawa, Jun Matsuoka, Isao Kondoh, Saburo Kose +2 more | 1993-11-16 |