Assignee
TOKAI OPTICAL CO LTD
JP·24 granted patents·17 pending applications·54 citations·filing 2006–2025
Top patents by PatentIndex Score
41 records- 0193US11401400B2Plastic lensTOKAI OPTICAL CO LTD·Filed 2015·Granted Aug 2, 2022·14 cites·19 claims
- 0288US9069125B2Optical product and method for manufacturing sameTOKAI OPTICAL CO LTD·Filed 2014·Granted Jun 30, 2015·5 cites·10 claims
- 0388US7926939B2Spectacle lens and spectacleTOKAI OPTICAL CO LTD·Filed 2008·Granted Apr 19, 2011·25 cites·12 claims
- 0481US8908275B2Optical product and spectacle plastic lensTOKAI OPTICAL CO LTD·Filed 2013·Granted Dec 9, 2014·3 cites·3 claims
- 0574US10031349B2Optical product, and spectacle lens and spectaclesTOKAI OPTICAL CO LTD·Filed 2016·Granted Jul 24, 2018·2 cites·6 claims
- 0670US2024411056A1Anti-fogging plastic spectacle lensTOKAI OPTICAL CO LTD·Filed 2022·Application pending·0 cites
- 0767US2025370167A1Optical thin filmTOKAI OPTICAL CO LTD·Filed 2025·Application pending·0 cites
- 0865US12585045B2Optical thin film manufacturing method and optical thin filmTOKAI OPTICAL CO LTD·Filed 2023·Granted Mar 24, 2026·0 cites·8 claims
- 0964US12571941B2Plastic optical product and plastic spectacle lensTOKAI OPTICAL CO LTD·Filed 2023·Granted Mar 10, 2026·0 cites·7 claims
- 1062US10582876B2Glasses-lens assessment method, glasses-lens design method using assessment method, and calculation method for visual-performance characteristics of test subject when viewing object through lensTOKAI OPTICAL CO LTD·Filed 2014·Granted Mar 10, 2020·3 cites·25 claims
- 1162US9651713B2Optical product and spectacle plastic lensTOKAI OPTICAL CO LTD·Filed 2015·Granted May 16, 2017·1 cites·8 claims
- 1260US11966102B2Spectacle lens and spectaclesTOKAI OPTICAL CO LTD·Filed 2021·Granted Apr 23, 2024·0 cites·5 claims
- 1360US9022561B2Plastic optical product and plastic lens for spectaclesTOKAI OPTICAL CO LTD·Filed 2012·Granted May 5, 2015·1 cites·6 claims
- 1458US10663634B2ND filter with plastic base material, and ND filter with plastic base material for eyeglassesTOKAI OPTICAL CO LTD·Filed 2018·Granted May 26, 2020·0 cites·8 claims
- 1558US2024019608A1Plastic lens for spectaclesTOKAI OPTICAL CO LTD·Filed 2023·Application pending·0 cites
- 1658US2022066237A1Plastic lens and eye glassesTOKAI OPTICAL CO LTD·Filed 2020·Application pending·0 cites
- 1758US2023384491A1Optical product and optical product manufacturing methodTOKAI OPTICAL CO LTD·Filed 2023·Application pending·0 cites
- 1858US2023408732A1Optical product and light concentratorTOKAI OPTICAL CO LTD·Filed 2023·Application pending·0 cites
- 1958US2025213109A1Refractive dioptric power determination methodTOKAI OPTICAL CO LTD·Filed 2023·Application pending·0 cites
- 2057US11072138B2Spectacle lens manufacturing systemTOKAI OPTICAL CO LTD·Filed 2017·Granted Jul 27, 2021·0 cites·12 claims
- 2156US2023244003A1Plastic optical product and plastic spectacle lensTOKAI OPTICAL CO LTD·Filed 2023·Application pending·0 cites
- 2256US2022197058A1Eyeglass lens for suppressing progression of myopiaTOKAI OPTICAL CO LTD·Filed 2021·Application pending·0 cites
- 2353US11709292B2Optical plastic product, and plastic spectacle lens and spectaclesTOKAI OPTICAL CO LTD·Filed 2019·Granted Jul 25, 2023·0 cites·4 claims
- 2453US11422287B2Plastic spectacle lens and spectaclesTOKAI OPTICAL CO LTD·Filed 2019·Granted Aug 23, 2022·0 cites·4 claims
- 2551US2022091315A1Plastic substrate nd filter and plastic substrate nd filter for use in eyeglassesTOKAI OPTICAL CO LTD·Filed 2021·Application pending·0 cites
- 2650US10107941B2Optical product, and spectacle lens and spectaclesTOKAI OPTICAL CO LTD·Filed 2016·Granted Oct 23, 2018·0 cites·3 claims
- 2749US10688739B2Spectacle lens manufacturing systemTOKAI OPTICAL CO LTD·Filed 2017·Granted Jun 23, 2020·0 cites·42 claims
- 2848US10874357B2Eye movement measuring device and eye movement analysis systemTOKAI OPTICAL CO LTD·Filed 2019·Granted Dec 29, 2020·0 cites·17 claims
- 2948US2023029334A1Light-shielding memberTOKAI OPTICAL CO LTD·Filed 2022·Application pending·0 cites
- 3046US11668957B2Optical product, plastic spectacle lens, and spectaclesTOKAI OPTICAL CO LTD·Filed 2019·Granted Jun 6, 2023·0 cites·12 claims
- 3145US9963612B2Displacement prevention coating agentTOKAI OPTICAL CO LTD·Filed 2015·Granted May 8, 2018·0 cites·20 claims
- 3243US7914145B2Progressive power lens and manufacturing method thereforTOKAI OPTICAL CO LTD·Filed 2006·Granted Mar 29, 2011·0 cites·17 claims
- 3341US2025004184A1Notch filterTOKAI OPTICAL CO LTD·Filed 2024·Application pending·0 cites
- 3440US10101502B2Optical product and spectacle lensTOKAI OPTICAL CO LTD·Filed 2016·Granted Oct 16, 2018·0 cites·3 claims
- 3539US12216274B2Method and program for predicting bending in optical productsTOKAI OPTICAL CO LTD·Filed 2021·Granted Feb 4, 2025·0 cites·8 claims
- 3637US10073280B2Method for assessing spectacle lens by evoked activity in visual cortex of brain or the like, and method for designing spectacle lens using said method for assessmentTOKAI OPTICAL CO LTD·Filed 2012·Granted Sep 11, 2018·0 cites·20 claims
- 3736US2013063810A1Infrared-transmitting coverTOKAI OPTICAL CO LTD·Filed 2012·Application pending·0 cites
- 3833US2022413272A1Delay mirror and delay mirror systemTOKAI OPTICAL CO LTD·Filed 2022·Application pending·0 cites
- 3933US2017097521A1Optical product and spectacle lensTOKAI OPTICAL CO LTD·Filed 2015·Application pending·0 cites
- 4032US2015192717A1Optical article for receiving and emitting infrared ray and infrared ray receiving and emitting unitTOKAI OPTICAL CO LTD·Filed 2015·Application pending·0 cites
- 4129US2018113238A1Optical product, plastic lens, and eye glassesTOKAI OPTICAL CO LTD·Filed 2017·Application pending·0 cites
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