Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12390100 | Measuring method for measuring sensing capability of eye of subject, and setting method for progressive power lens | Eiichiro YAMAGUCHI, Ayumu Ito, Nagisa Ishihara | 2025-08-19 |
| 12353065 | Spectacle lens and method for designing the same | Hua Qi | 2025-07-08 |
| 12310662 | Measuring method for measuring rotation characteristic of eyeball of subject and setting method for progressive power lens | Nagisa Ishihara, Eiichiro YAMAGUCHI, Ayumu Ito | 2025-05-27 |
| 12124112 | Method, manufacturing method, and design system for progressive power lens | Eiichiro YAMAGUCHI, Ayumu Ito | 2024-10-22 |
| 12007626 | Spectacle lens and method for designing the same | Hua Qi | 2024-06-11 |
| 11960149 | Measurement method for visual behavior, design method and manufacturing method for progressive power lens | Eiichiro YAMAGUCHI, Ayumu Ito | 2024-04-16 |
| 11681163 | Pair of progressive power lenses and design method for the same | Eiichiro YAMAGUCHI, Ayumu Ito | 2023-06-20 |
| 11428954 | Designing method and producing method of pair of spectacle lenses, and pair of spectacle lenses | Ayumu Ito, Tadashi Kaga | 2022-08-30 |
| 9151890 | Optical waveguide splitter on a waveguide substrate for attenuating a light source | Peter C. Sercel, Rolf A. Wyss | 2015-10-06 |
| 8995813 | Optical waveguide attenuator for a polarized light source | Rolf A. Wyss | 2015-03-31 |
| 8867872 | Optical waveguide splitter on a waveguide substrate for attenuating a light source | Peter C. Sercel, Rolf A. Wyss | 2014-10-21 |
| 8144398 | Polarizing element | Yoshitaka Yoneda, Michiyori Miura | 2012-03-27 |
| 8130447 | Polarization element | Michiyori Miura, Hideo Kobayashi, Mitsuhiro Kureishi | 2012-03-06 |
| 8064135 | Polarization element | Seiichi Yokoyama, Michiyori Miura | 2011-11-22 |