Issued Patents All Time
Showing 26–50 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7994082 | Preforms for precision press molding, optical elements, and methods of manufacturing the same | Yoshiko Kasuga, Yasuhiro Fujiwara | 2011-08-09 |
| 7992412 | Process for producing glass shaped material and process for producing optical element | Masahiro Yoshida, Yoshikane Shinkuma | 2011-08-09 |
| 7974020 | Lens and process for the production thereof | — | 2011-07-05 |
| 7972662 | Substrate for information recording medium, information recording medium and process for producing information recording medium | Mikio Ikenishi, Kenji Yamanaka, Junichi Horikawa | 2011-07-05 |
| 7964298 | Glass for chemical strengthening, substrate for information recording media and information recording media | Mikio Ikenishi | 2011-06-21 |
| 7947617 | Optical glass, precision-pressmolding preform and optical element | Yasuhiro Fujiwara, Yoshio Nojima | 2011-05-24 |
| 7930901 | Optical glass, precision press-molding preform, optical element and processes for production of these | Yasuhiro Fujiwara | 2011-04-26 |
| 7827823 | Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the element | Yoshiko Kasuga | 2010-11-09 |
| 7745361 | Optical glass, preform for precision press molding and method of manufacturing thereof, optical element and method of manufacturing thereof | Yoshiko Kasuga, Yasuhiro Fujiwara | 2010-06-29 |
| 7700507 | Optical glass, preform for precision press-molding, process for the production of the preform, optical element, and process for the production of the element | Yoshiko Kasuga | 2010-04-20 |
| 7670978 | Optical glass, precision press molding preform and optical element | Yoshiko Kasuga, Mikio Ikenishi | 2010-03-02 |
| 7670974 | Optical glass, press molding preform, method of manufacturing same, optical element, and method of manufacturing same | Yasuhiro Fujiwara | 2010-03-02 |
| 7618909 | Precision press-molding preform, process for the production thereof, optical element and process for the production of the optical element | Yasuhiro Fujiwara | 2009-11-17 |
| 7601446 | Substrate for information recording medium, information recording medium and method for manufacturing same | Mikio Ikenishi | 2009-10-13 |
| 7598189 | Phosphate optical glass, preform for precision press molding and manufacturing method of the same, optical element and manufacturing method of the same | Yasuhiro Fujiwara | 2009-10-06 |
| 7595272 | Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof | Mikio Ikenishi | 2009-09-29 |
| 7595273 | Glass substrate for information recording medium, process for producing the glass substrate, information recording medium, and process for producing the same | Mikio Ikenishi | 2009-09-29 |
| 7560405 | Optical glass for precision press molding, preform for precision press molding, and process for the production thereof | Kazutaka Hayashi | 2009-07-14 |
| 7538051 | Optical glass, preform for press molding and optical element | Yasuhiro Fujiwara | 2009-05-26 |
| 7462411 | Substrate for information recording medium, information recording medium and process for producing the same | Mikio Ikenishi | 2008-12-09 |
| 7451620 | Optical glass and optical product using the same | Hiromasa Tawarayama, Kazutaka Hayashi, Hiroshi Kawazoe | 2008-11-18 |
| 7351675 | Optical glass, precision press-molding preform, process for production thereof, optical element and process for the production thereof | Yoshiko Kasuga | 2008-04-01 |
| 7309670 | Optical glass; press-molding preform and method of manufacturing same; and optical element and method of manufacturing same | Yasuhiro Fujiwara | 2007-12-18 |
| 7232779 | Optical glass, precision press molding preform and method of manufacturing the same, optical element and method of manufacturing the same | Yoshiko Kasuga | 2007-06-19 |
| 7208238 | Substrate for information recording medium, information recording medium and process for producing information recording medium | Mikio Ikenishi, Kenji Yamanaka, Junichi Horikawa | 2007-04-24 |