Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162054 | Process for producing multi-component glass doped with microparticles | — | 1992-11-10 |
| 5134095 | Matrix glass composition for glass doped with dispersed microcrystallites | Katsuaki Uchida | 1992-07-28 |
| 5122178 | Process for producing glass doped with dispersed microcrystallites | Yoshiyuki Asahara, Shuji Yoshida | 1992-06-16 |
| 5098460 | Method of making multi-component glass doped with cadmium chalcogenide microparticles | Shuji Yoshida | 1992-03-24 |
| 5043003 | Process for producing glass doped with dispersed mirocrystallites | Shuji Yoshida, Yoshiyuki Asahara | 1991-08-27 |
| 4902330 | Method of producing gradient-index lens | Hiroyuki Sakai, Yoshiyuki Asahara, Shin Nakayama, Yoshitaka Yoneda | 1990-02-20 |
| 4844589 | Lenses having plural contiguous refractive index distribution substrates and method of manufacture | Yoshiyuki Asahara, Hiroyuki Sasai, Seiichi Shingaki, Shin Nakayama | 1989-07-04 |
| 4844724 | Method of adjusting refractive index distribution lenses | Hiroyuki Sakai, Yoshiyuki Asahara, Shin Nakayama, Yoshitaka Yoneda | 1989-07-04 |
| 4805997 | Gradient refractive index type anamorphic planar microlens and method of producing the same | Yoshiyuki Asahara, Hiroyuki Sakai, Shin Nakayama, Yoshitaka Yoneda | 1989-02-21 |
| 4767435 | Process for producing transparent glass product having refractive index gradient | Yoshiyuki Asahara, Seiichi Shingaki, Shin Nakayama, Kenji Nakagawa, Tetsuro Izumitani +1 more | 1988-08-30 |