Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10071931 | Optical glass and optical element | — | 2018-09-11 |
| 9834465 | Optical glass and method for producing the same | — | 2017-12-05 |
| 9828280 | Glass, optical glass, glass raw material for press molding, and optical element | Yasuhiro Fujiwara | 2017-11-28 |
| 9604872 | Glass and optical element production method | Yasuhiro Fujiwara | 2017-03-28 |
| 9359246 | Glass, optical glass, glass raw material for press molding, and optical element | Yasuhiro Fujiwara | 2016-06-07 |
| 8575047 | Optical glass, preform for precision press molding, and optical element | Yasuhiro Fujiwara, Hiroki Takazawa | 2013-11-05 |
| 8288299 | Optical glass, preform for precision press molding, and optical element | Yasuhiro Fujiwara, Hiroki Takazawa | 2012-10-16 |