Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7874673 | Progressive power lens and method of designing the same | Toshihide Shinohara, Tadashi Kaga, Ayumu Ito | 2011-01-25 |
| 7445333 | Spectacle lens and spectacles | Hiroaki Fujii | 2008-11-04 |
| 7341344 | Progressive power lens | — | 2008-03-11 |
| 7121664 | Method of designing aspherical spectacle lens | — | 2006-10-17 |
| 7021762 | Multifocal spectacle lens | — | 2006-04-04 |
| 6994435 | Aspherical spectacle lens | — | 2006-02-07 |
| 6953248 | Progressive power lens | Hiroshi Sato, Chikara Yamamoto | 2005-10-11 |
| 6948816 | Method of manufacturing progressive power spectacle lens | Chikara Yamamoto | 2005-09-27 |
| 6857742 | Manufacturing method and supplying method of spectacle lenses | Yoshimi Obara | 2005-02-22 |
| 6796653 | Aspherical spectacle lens with geometric center spaced from framing reference point and processing method thereof | — | 2004-09-28 |
| 6789895 | Aspherical spectacle lens with prismatic power to correct phoria | — | 2004-09-14 |
| 6652097 | Progressive-power spectacle lens | — | 2003-11-25 |
| 6631988 | Designing and manufacturing methods of spectacle lens, and spectacle lens series | Yoshimi Obara | 2003-10-14 |
| 6554426 | Methods for designing and manufacturing single-vision spectacle lens and manufacturing system thereof | — | 2003-04-29 |
| 6419549 | Manufacturing method of spectacle lenses and system thereof | — | 2002-07-16 |
| 6366823 | Design method for optical curved surface | — | 2002-04-02 |
| 6356373 | Progressive power lens and mold for producing same | — | 2002-03-12 |
| 6318857 | Variable power spectacles | — | 2001-11-20 |
| 6221561 | Diffusion plate and method for manufacturing master die thereof | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Koichi Maruyama, Teruaki Hiyamuta +1 more | 2001-04-24 |
| 6193370 | Method of manufacturing progressive power spectacle lenses | — | 2001-02-27 |
| 6070980 | Spectacle lens | Yoshimi Obara | 2000-06-06 |
| 6056401 | Spectacle lens | — | 2000-05-02 |
| 5966239 | Binocular magnifying glasses | Tomohiko Kanzaki | 1999-10-12 |
| 5965327 | Method for manufacturing a master die for a diffusion plate and diffusion manufactured by said method | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Koichi Maruyama, Teruaki Hiyamuta +1 more | 1999-10-12 |
| 5844657 | Progressive power lens and mold for producing same | — | 1998-12-01 |