Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7694530 | Chemical strengthening treatment method of magnetic disk glass substrate | Naohiro Kamiya | 2010-04-13 |
| 6595028 | Chemical reinforced glass substrate having desirable edge profile and method of manufacturing the same | Takemi Miyamoto | 2003-07-22 |
| 6428396 | Method of producing a substrate for an information recording medium and method of producing an information recording medium | Hiroshi Takeda, Hisao Kawai | 2002-08-06 |
| 5259044 | Mach-Zehnder optical modulator with monitoring function of output light | Junko Watanabe, Hiroki Okushima, Tadao Shingyoji | 1993-11-02 |
| 5218663 | Optical waveguide device and method for connecting optical waveguide and optical fiber using the optical waveguide device | Kaoru Moriya, Eiji Kikuchi | 1993-06-08 |
| 5048912 | Optical fiber switching with spherical lens and method of making same | Tatsuro Kunikane, Kiyoshi Terai, Michihiro Takamatsu | 1991-09-17 |
| 4926430 | Laser module with a built-in optical isolator, and method of adjusting the angular position of the optical isolator | — | 1990-05-15 |
| 4824200 | Optical branching filter | Kazushi Asanuma, Takashi Yokota, Kiyoshi Terai | 1989-04-25 |