Issued Patents 2011
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8076014 | Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method | Kazuo Tachiwana, Yoichi Hachitani, Mikio Ikenishi, Kinobu Osakabe | 2011-12-13 |
| 7992412 | Process for producing glass shaped material and process for producing optical element | Masahiro Yoshida, Yoshikane Shinkuma | 2011-08-09 |
| 7994082 | Preforms for precision press molding, optical elements, and methods of manufacturing the same | Yoshiko Kasuga, Yasuhiro Fujiwara | 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 |