Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948692 | Combination toner and printer utilizing same | Koichi Higashimura, Yoshinori Miyazawa, Tsuneo Handa, Teruyuki Mizumoto, Hiroshi Ito +4 more | 1990-08-14 |
| 4680046 | Method of preparing preforms for optical fibers | Nobutaka Matsuo, Yoshitaka Itoh, Sadao Kanbe, Haruo Osafune | 1987-07-14 |
| 4680048 | Method of preparing doped silica glass | Nobutaka Matsuo, Sadao Kanbe, Haruo Osafune, Yoshitaka Itoh | 1987-07-14 |
| 4622056 | Method of preparing silica glass | Nobutaka Matsuo, Yoshitaka Itoh, Sadao Kanbe, Haruo Osafune | 1986-11-11 |