Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033815 | Optical transmission fiber and process for producing the same | Shiro Kurosaki, Minoru Watanabe | 1991-07-23 |
| 4838916 | Method for making single-polorization, single mode optical fibers | Tetsuo Miya, Yutaka Sasaki, Katusunari Okamoto, Masao Kawachi | 1989-06-13 |
| 4528010 | Process for producing optical glass product | Nobuo Inagaki, Shiro Kurosaki | 1985-07-09 |
| 4525027 | Single mode optical fibers | Katsunari Okamoto, Akio Kawana, Tetsuo Miya | 1985-06-25 |
| 4480897 | Single-polarization single-mode optical fiber | Katsunari Okamoto, Toshihito Hosaka, Yutaka Sasaki, Juichi Noda | 1984-11-06 |
| 4414008 | Process for producing optical fiber preform | Tetsuo Miyajiri, Hiroshi Yokota, Toru Kuwahara | 1983-11-08 |
| 4406684 | Core torch for fabricating single-mode optical fiber preforms | Masao Kawachi, Satoru Tomaru, Shoichi Suto | 1983-09-27 |
| 4406680 | Process for producing high-purity silica glass | Gotaro Tanaka, Toru Kuwahara, Masaaki Yoshida | 1983-09-27 |
| 4402720 | Process for preparing glass preform for optical fiber | Shiro Kurosaki, Minoru Watanabe | 1983-09-06 |
| 4372647 | Single mode optical fibers | Katsunari Okamoto, Akio Kawana, Tetsuo Miya | 1983-02-08 |
| 4367085 | Method of fabricating multi-mode optical fiber preforms | Shoichi Suto, Fumiaki Hanawa, Masao Kawachi, Motohiro Nakahara | 1983-01-04 |
| 4345928 | Fabrication method of single-mode optical fiber preforms | Masao Kawachi, Satoru Tomaru, Shoichi Suto | 1982-08-24 |
| 4338111 | Process for producing a glass preform for optical fiber | Michihisa Kyoto, Gotaro Tanaka, Toru Kuwahara | 1982-07-06 |
| 4318726 | Process for producing optical fiber preform | Gotaro Tanaka, Toru Kuwahara, Michihisa Kyoto | 1982-03-09 |