Issued Patents All Time
Showing 201–225 of 234 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797143 | Process for the production of optical fiber preforms | Kazunori Chida, Hiroshi Yokota, Michihisa Kyoto, Hisao Sato, Naoki Yoshioka | 1989-01-10 |
| 4735475 | Optical fiber including chlorine content in cladding | Michihisa Kyoto | 1988-04-05 |
| 4664690 | Method for producing glass preform for optical fiber | Michihisa Kyoto, Yoichi Ishiguro | 1987-05-12 |
| 4630862 | Dental chair | — | 1986-12-23 |
| 4599011 | Article-joining device | Hidenori Tashiro | 1986-07-08 |
| 4586943 | Method for the production of glass preform for optical fibers | Michihisa Kyoto, Naoki Yoshioka, Gotaro Tanaka, Hiroshi Shimba, Nobuo Inagaki | 1986-05-06 |
| 4545292 | Roof ridge ventilation apparatus | Michio Inokawa, Yoshiteru Miyasaka, Toshio Watanabe | 1985-10-08 |
| 4538844 | Locking device for door | — | 1985-09-03 |
| 4470706 | Analog type of electronic timepiece | Katsuo Nishimura | 1984-09-11 |
| 4419019 | Analog display type electronic timepiece | Katsuo Nishimura | 1983-12-06 |
| 4419116 | Process for producing optical fiber preform and apparatus therefor | Motohiro Nakahara, Naoki Yoshioka, Hiroshi Yokota, Tetsuo Miyajiri | 1983-12-06 |
| 4410345 | Method of producing optical waveguide | Yuichi Usui, Shigeo Murai, Shiro Kurosaki | 1983-10-18 |
| 4402720 | Process for preparing glass preform for optical fiber | Takao Edahiro, Shiro Kurosaki | 1983-09-06 |
| 4390932 | Hanger arm mechanism in dental lighting equipment | Takahiro Matsui | 1983-06-28 |
| 4389233 | Process for the production of an optical glass article | Shiro Kurosaki | 1983-06-21 |
| 4375900 | Control system of and device for memorizing, reading and reproducing the position of material to be controlled | Akifumi Tachibana, Takanori Shigihara | 1983-03-08 |
| 4347780 | Operating valve assembly for a power steering | Koichi Takahashi, Megumu Higuchi | 1982-09-07 |
| 4339501 | Filter-coated phosphor | Kiyoshi Inoue | 1982-07-13 |
| 4326869 | Method of producing optical waveguide | Shiro Kurosaki, Yuichi Usui | 1982-04-27 |
| 4311461 | Dental treatment chair system | Mitsuhiko Hotta | 1982-01-19 |
| 4308607 | Electronic timepiece | Fukuo Sekiya | 1981-12-29 |
| 4306302 | Electronic timepiece | Fukuo Sekiya | 1981-12-15 |
| 4297838 | Electronic timepiece | Kazunari Kume, Hideshi Ohno, Munetaka Tamaru | 1981-11-03 |
| 4287229 | Method for surface treatment of phosphor particles | Mitsuhiro Oikawa, Toshio Nishimura, Masao Asada, Masao Tezuka, Tsurahide Cho | 1981-09-01 |
| 4274153 | Movement construction for electronic timepiece | Kazunari Kume, Hideshi Ohno, Munetaka Tamaru | 1981-06-16 |