Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10642070 | Progressive addition lens | Tadashi Kaga, Ayumu Ito, Hiroshi Asami | 2020-05-05 |
| 10288903 | Progressive addition lens | Tadashi Kaga, Ayumu Ito, Hiroshi Asami | 2019-05-14 |
| 9746694 | Lens set, method of designing lens and method of manufacturing lens | Tadashi Kaga, Ayumu Ito, Takateru Mori | 2017-08-29 |
| 9581831 | Optical lens, method for designing optical lens, and apparatus for manufacturing optical lens | Tadashi Kaga, Takateru Mori | 2017-02-28 |
| 9417462 | Progressive power lens design method and progressive power lens design apparatus | Takateru Mori | 2016-08-16 |
| 9010932 | Spectacle lens | Takateru Mori | 2015-04-21 |
| 8960900 | Progressive-power lens | Kazutoshi Kato, Yohei Suzuki, Ayumu Ito, Tadashi Kaga | 2015-02-24 |
| 8678585 | Progressive-power lens | Tadashi Kaga | 2014-03-25 |
| 8583406 | Visual simulator for spectacle lens, visual simulation method for spectacle lens, and computer readable recording medium recording computer readable visual simulation program for spectacle lens | Masanori KAKIMOTO, Tomoaki Tatsukawa | 2013-11-12 |
| 8147062 | Progressive-power lens | Tadashi Kaga | 2012-04-03 |
| 8090628 | Lens order system, lens order method, lens order program and recording medium storing the lens order program | Tadashi Kaga, Ayumu Ito | 2012-01-03 |
| 8082188 | Lens order system, lens order method, lens order program and recording medium storing the lens order program | Tadashi Kaga, Ayumu Ito | 2011-12-20 |
| 8042942 | Progressive-power lens | Tadashi Kaga | 2011-10-25 |
| 7874673 | Progressive power lens and method of designing the same | Tadashi Kaga, Ayumu Ito, Moriyasu Shirayanagi | 2011-01-25 |
| 7631969 | Combined spectacle lens, auxiliary lens, and method of edging lenses | Tadashi Kaga | 2009-12-15 |
| 7175277 | Generation system of design data, generation method of design data, recording medium and program | Tadashi Kaga, Kazutoshi Kato | 2007-02-13 |
| 7159982 | Method for providing design data and system for providing design data | Kazutoshi Kato, Tadashi Kaga, Satoshi Kubota, Masaaki Takeuchi | 2007-01-09 |
| 7048376 | Progressive addition power lens | Tadashi Kaga | 2006-05-23 |
| 6007201 | Multifocal contact lens | Osamu Wada, Yoshinori Awanohara, Akira Komatu, Osamu Yokoyama | 1999-12-28 |
| 5541678 | Multifocal contact lens and method and molding die for manufacturing contact lens | Yoshinori Awanohara, Osamu Wada, Osamu Kamiwaki | 1996-07-30 |
| 5050979 | Eyeglass lens | — | 1991-09-24 |
| 5050980 | Aspherical spectacle lens | — | 1991-09-24 |
| 4762408 | Progressive multifocal lens and spectacles using same | — | 1988-08-09 |
| 4640593 | Progressive multifocal ophthalmic lenses | — | 1987-02-03 |
| 4606626 | Progressive multifocal ophthalmic lenses with prism for correcting chromatic aberration | — | 1986-08-19 |