Issued Patents All Time
Showing 126–147 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039654 | Superconductive material and method of preparing same | Susumu Mizuta, Toshiya Kumagai, Wakichi Kondo, Kenji Kawaguchi, Shigemitsu Shin | 1991-08-13 |
| 5035318 | Acceleration accumulating conveyor chain | Yasukazu Kawabata, Susumu Hamaguchi, Toshio Takahashi, Katsutoshi Shibayama | 1991-07-30 |
| 4978378 | Method for producing glass preform for optical fiber | Masumi Ito, Toshio Danzuka, Masahiro Takagi | 1990-12-18 |
| 4938789 | Raw material supplying device and process | Ichiro Tsuchiya, Toshio Danzuka, Hideki Minami | 1990-07-03 |
| 4883953 | Spectroscopic method and apparatus for measuring sugar concentrations | Katsue Koashi | 1989-11-28 |
| 4871695 | Process for the production of glass | Koji Seki, Hiroshi Morishita, Kiyoshi Ohno | 1989-10-03 |
| 4846867 | Method for producing glass preform for optical fiber | Hiroo Kanamori, Yoichi Ishiguro, Futoshi Mizutani, Gotaro Tanaka | 1989-07-11 |
| 4832720 | Method for producing multi-core optical fiber | Minoru Watanabe, Shuzo Suzuki, Hiroshi Suganuma | 1989-05-23 |
| 4822399 | Glass preform for dispersion shifted single mode optical fiber and method for the production of the same | Hiroo Kanamori, Gotaro Tanaka, Yoichi Ishiguro, Masahiro Takagi, Hiroshi Suganuma +1 more | 1989-04-18 |
| 4797143 | Process for the production of optical fiber preforms | Kazunori Chida, Michihisa Kyoto, Hisao Sato, Minoru Watanabe, Naoki Yoshioka | 1989-01-10 |
| 4793842 | Method for producing glass preform for optical fiber | Hiroo Kanamori, Gotaro Tanaka, Hiroshi Suganuma, Toshio Danzuka | 1988-12-27 |
| 4781740 | Method for producing glass preform for optical fiber | Toshio Danzuka, Yoichi Ishiguro | 1988-11-01 |
| 4765815 | Method for producing glass preform for optical fiber | Toshio Danzuka, Yoichi Ishiguro | 1988-08-23 |
| 4737179 | Method for producing glass preform for optical fiber | Gotaro Tanaka, Shigeru Tanaka, Hiroo Kanamori, Hiroshi Suganuma | 1988-04-12 |
| 4720666 | Electric braking apparatus for brushless excitation system generator | — | 1988-01-19 |
| 4679100 | Rotary head type magnetic recording and reproducing device | — | 1987-07-07 |
| 4668263 | Method for producing glass preform for optical fiber | Gotaro Tanaka, Hiroo Kanamori, Futoshi Mizutani, Toshio Danzuka | 1987-05-26 |
| 4653852 | Multi core optical fiber | Shuzo Suzuki, Ichiro Ogasawara, Shim Sumida | 1987-03-31 |
| 4647262 | Removable expanding fastener | — | 1987-03-03 |
| 4545801 | Raw material supply device | Tetsuo Miyajiri, Toshimi Habasaki, Tamio Tsurita, Motohiro Nakahara | 1985-10-08 |
| 4419116 | Process for producing optical fiber preform and apparatus therefor | Motohiro Nakahara, Naoki Yoshioka, Tetsuo Miyajiri, Minoru Watanabe | 1983-12-06 |
| 4414008 | Process for producing optical fiber preform | Takao Edahiro, Tetsuo Miyajiri, Toru Kuwahara | 1983-11-08 |