Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12140821 | Progressive addition lens and design method therefor | Hiroshi Asami, Tadashi Kaga | 2024-11-12 |
| 12099260 | Progressive addition lens and design method therefor | Hiroshi Asami, Tadashi Kaga | 2024-09-24 |
| 11886047 | Spectacle lenses and methods for producing the same | Hiroshi Asami | 2024-01-30 |
| 11598977 | Spectacle lenses and methods for producing the same | Hiroshi Asami | 2023-03-07 |
| 10203520 | Progressive power lens group | Tomohiro Odaira | 2019-02-12 |
| 10185159 | Progressive power lens and method of designing and manufacturing the same | Tomohiro Odaira | 2019-01-22 |
| 9772511 | Eyeglass lens and eyeglass lens manufacturing method | Tomohiro Odaira | 2017-09-26 |
| 5719657 | Progressive power lens | Moriyasu Shirayanagi | 1998-02-17 |
| 5442413 | Pupil conjugate-coupling device in projecting optical system | Yasuyuki Tejima, Nobutaka Minefuji, Ryota Ogawa | 1995-08-15 |
| 5353072 | Aspherical spectacle lens | Yasuyuki Tejima, Moriyasu Shirayanagi | 1994-10-04 |