Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4680046 | Method of preparing preforms for optical fibers | Masanobu Motoki, Yoshitaka Itoh, Sadao Kanbe, Haruo Osafune | 1987-07-14 |
| 4680048 | Method of preparing doped silica glass | Masanobu Motoki, Sadao Kanbe, Haruo Osafune, Yoshitaka Itoh | 1987-07-14 |
| 4622056 | Method of preparing silica glass | Yoshitaka Itoh, Sadao Kanbe, Haruo Osafune, Masanobu Motoki | 1986-11-11 |