Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5913311 | Cigarette filter and filter material therefor | Katsutaka Ito, Atsushi Tokida, Tetsuro Shibata, Yoichiro Yamashita | 1999-06-22 |
| 5264531 | Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom | Yuichi Fukui, Hajime Itoh, Takeo Hamazaki, Itsumi Muraoka | 1993-11-23 |
| 5238974 | Plastic cladding composition for silica or glass core optical fiber, and silica or glass core optical fiber prepared therefrom | Takashi Yamamoto, Katsuhiko Shimada, Ryuji Murata | 1993-08-24 |
| 5234766 | Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom | Yuichi Fukui, Hajime Itoh, Takeo Hamazaki, Itsumi Muraoka | 1993-08-10 |
| 5223561 | Polymer composition and optical fiber having cladding composed of that composition | Takashi Yamamoto, Tadao Kobayashi, Katsuhiko Shimada | 1993-06-29 |
| 5136002 | Fluorine resin composition | Teruhiko Sugimori, Takashi Yamamoto, Katsuhiko Shimada | 1992-08-04 |
| 5121461 | Heat-resistant plastic optical fiber and process for the production thereof | Takashi Yamamoto, Katsuhiko Shimada | 1992-06-09 |
| 5117480 | Polymer composition and optical fiber having cladding composed of that composition | Takashi Yamamoto, Tadao Kobayashi, Katsuhiko Shimada | 1992-05-26 |
| 5111526 | Plastic optical fibers and process for the production thereof | Takashi Yamamoto, Katsuhiko Shimada | 1992-05-05 |
| 5048924 | Fluorine resin composition | Teruhiko Sugimori, Takashi Yamamoto, Katsuhiko Shimada | 1991-09-17 |
| 5022737 | Plastic cladding composition for plastic core optical fiber, and plastic core optical fiber prepared therefrom | Takashi Yamamoto, Katsuhiko Shimada, Yoshihiro Uozu, Ryuji Murata | 1991-06-11 |
| 4966435 | Plastic optical fiber | Takashi Yamamoto, Teruhiko Sugimori, Katsuhiko Shimada | 1990-10-30 |
| 4836642 | Cladding material for optical fiber | Katsuhiko Shimada, Yoshihiro Uozu | 1989-06-06 |
| 4663382 | Non-rigid vinyl chloride polymer resin composition | Kazuo Kishida, Kazuo Ueda, Kiyokazu Kitai | 1987-05-05 |