Issued Patents All Time
Showing 76–86 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588231 | Method molding a glass composition into an optical element with reduced pull-out | Shin-Ichiro Hirota, Yu Oogami | 2003-07-08 |
| 6521915 | Light-emitting diode device | Tsutomu Odaki, Masutsugu Tasaki, Akira Ichikawa, Kazuhisa Takagi | 2003-02-18 |
| 6465105 | WDM optical filter and glass substrate for use in the WDM optical filter | Robert W. Johnson, Hiroaki Yanagita | 2002-10-15 |
| 6332338 | Method of producing glass substrate for information recording medium | Xuelu Zou | 2001-12-25 |
| 6312841 | Substrate for information recording medium and method of producing it, and information recording medium comprising the substrate | Takashi Watanabe | 2001-11-06 |
| 6151915 | Method of producing a glass optical element capable of suppressing occurrence of a damage of a mold and improving a quality of the glass optical element | Shin-Ichiro Hirota, Yu Oogami | 2000-11-28 |
| 6127297 | Optical glass having a low specific gravity | — | 2000-10-03 |
| 5997977 | Information recording substrate and information recording medium prepared from the substrate | Xuelu Zou | 1999-12-07 |
| 5919718 | Glass composition moldable into an optical element with reduced pull-out | Shin-Ichiro Hirota, Yu Oogami | 1999-07-06 |
| 5744409 | Optical glass | Koichi Sato | 1998-04-28 |
| 4684329 | Canned motor pump | — | 1987-08-04 |