Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5385199 | Molten metal surface protective cover for a continuous casting apparatus having moving mold walls | — | 1995-01-31 |
| 5027888 | Method and apparatus for sealing molten metal for a twin-roll type continous casting apparatus | Minoru Tsukigahora, Shiromitsu Iwatani, Kunio Nagai, Masakazu Mouri | 1991-07-02 |
| 4987949 | Protective cover for surface of molten steel used in continuous casting apparatus | Shiromitsu Iwatani, Toshikatsu Okao | 1991-01-29 |
| 4764980 | System for measuring delay time variation in optical fiber digital communication system | Norio Seki, Shu Yamamoto, Yoshinao Iwamoto | 1988-08-16 |
| 4747094 | Signal coupling system for optical repeater system | Norio Seki, Shu Yamamoto, Yoshinao Iwamoto | 1988-05-24 |
| 4703791 | Apparatus and method for continuously producing thin metallic strip | Teruyoshi Suehiro, Kohsuke Terada, Minoru Ueda, Kunio Nagai, Toshie Hashimoto +2 more | 1987-11-03 |
| 4694886 | Horizontal continuous casting apparatus | — | 1987-09-22 |
| 4694885 | Apparatus for continuous casting of thin metallic plate | Teruyoshi Suehiro, Kunio Nagai, Toshie Hashimoto, Hisaki Nishiyama, Masakazu Mohri | 1987-09-22 |
| 4674556 | Method and device for controlling thin metallic strip continuous casting apparatus | Teruyoshi Suehiro, Kunio Nagai, Toshie Hashimoto, Hisaki Nishiyama, Masakazu Mohri | 1987-06-23 |
| 4523802 | Unitary mounting structure for semiconductor laser and optical fiber | Norio Seki, Shu Yamamoto, Akira Okada | 1985-06-18 |
| 4490020 | Coupling system for output light of semiconductor laser | Norio Seki, Shu Yamamoto | 1984-12-25 |
| 4408831 | Optical switch | Norio Seki, Shu Yamamoto, Hiroharu Wakabayashi | 1983-10-11 |
| 4369523 | Remote control system of an optical repeater | Norio Seki, Yohtaro Yatsuzuka | 1983-01-18 |
| 4341438 | Light source arrangement in an optical communication system | Norio Seki, Yohtaro Yatsuzuka | 1982-07-27 |
| 4281416 | Light source system in an optical transmission repeater | Norio Seki, Yohtaro Yatsuzuka | 1981-07-28 |
| 4257033 | Fault locating system in optical fiber transmission system | Chuichi Ota, Norio Seki | 1981-03-17 |