Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330361 | Maintenance method for injection molding machine, injection molding unit, and maintenance jig for injection molding machine | — | 2025-06-17 |
| 10838238 | Aromatic polycarbonate polarising lens | Terutaka Tokumaru, Hideaki Kimura, Masayuki Akaki | 2020-11-17 |
| 10816699 | Functional sheet including polyester resin, and lens using functional sheet | Takuya Gotou, Hirotaka Tsuruya, Kazuhisa Mitsuhata | 2020-10-27 |
| 10737471 | Synthetic resin laminate having photochromic properties and lens using same | Katsuyuki Murai, Hideaki Kimura | 2020-08-11 |
| 10120206 | Optical film and optical laminate using same | Kouichi Tanaka, Yoshiyuki Yahagi, Hideyoshi Fujisawa, Takuya Gotou, Katsuyuki Murai +1 more | 2018-11-06 |
| 9977264 | Polarizing lens for sunglasses | Hideaki Kimura, Terutaka Tokumaru, Masayuki Akaki | 2018-05-22 |
| 9709702 | Special polycarbonate polarizing eyewear | Takuya Gotou, Kazuhisa Mitsuhata, Masatoshi Nakashima | 2017-07-18 |
| 9063276 | Polarizing lens constituted of aromatic polycarbonate | Terutaka Tokumaru, Ken Shimomai, Katunori Suzuki, Masaki Yagoura, Akio Ohkubo | 2015-06-23 |
| 8936363 | Polarizing lens made of aromatic polycarbonate | Terutaka Tokumaru, Katsunori Suzuki, Ken Shimomai, Masaki Yagoura, Akio Ohkubo | 2015-01-20 |