| 8699016 |
Progressive power lens, method of designing progressive power lens and method of evaluating progressive power lens |
— |
2014-04-15 |
| 8534834 |
Progressive power lens, method of designing progressive power lens and method of evaluating progressive power lens |
— |
2013-09-17 |
| 8162478 |
Pair of progressive power lens and method for designing same |
Takashi Hatanaka, Yoshihiro Kikuchi, Hua Qi |
2012-04-24 |
| 8002405 |
Progressive power lens manufacturing method and progressive power lens |
Eichin Wolfgang |
2011-08-23 |
| 7731357 |
Method for designing group of bi-aspherical type progressive-power lenses, and group of bi-aspherical type progressive-power lenses |
Takashi Hatanaka, Yoshihiro Kikuchi |
2010-06-08 |
| 7399080 |
Bi-aspherical type progressive-power lens and method of designing the same |
Yoshihiro Kikuchi, Takashi Hatanaka |
2008-07-15 |
| 7241010 |
Bi-aspherical type progressive-power lens |
Yoshihiro Kikuchi |
2007-07-10 |
| 6935744 |
Bi-aspherical type progressive-power lens |
Yoshihiro Kikuchi |
2005-08-30 |
| 6712467 |
Progressive-power lens and design process for same |
— |
2004-03-30 |
| 5710615 |
Progressive power multifocal lens |
— |
1998-01-20 |
| 5708492 |
Progressive power multifocal lens |
— |
1998-01-13 |
| RE34132 |
Progressive power ophthalmic lens |
— |
1992-11-24 |
| 4934808 |
Progressive power omnifocal lens |
— |
1990-06-19 |
| 4729651 |
Progressive power ophthalmic lens |
— |
1988-03-08 |
| 4573121 |
Method for determining optimum thickness of ophthalmic lens |
Tsuyoshi Saigo |
1986-02-25 |
| 4472036 |
Progressive multi-focal lenses |
— |
1984-09-18 |