Photochromic compound, photochromic composition, photochromic article and spectacles
US-12577455-B2 · Mar 17, 2026 · US
This page is not indexed by search engines while we improve data quality.
Kawakami Hironori patents
Kawakami Hironori is listed as an inventor on 48 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Kawakami Hironori |
| Total patents | 48 |
| First publication | Jul 30, 2015 |
| Latest publication | Mar 17, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Photochromic compound, photochromic composition, photochromic article and eyeglasses
US-2026042742-A1 · Feb 12, 2026 · US
Electrochromic element, lens for spectacles, spectacles, and mold
US-2025284141-A1 · Sep 11, 2025 · US
Electrochromic element, lens for spectacles, spectacles, and method of producing electrochromic element
US-2025231425-A1 · Jul 17, 2025 · US
Photochromic compound, photochromic composition, photochromic article, and spectacles
US-2025100989-A1 · Mar 27, 2025 · US
Photochromic compound, photochromic composition, photochromic article, and spectacles
US-2025092006-A1 · Mar 20, 2025 · US
Spectacle lens, antifouling agent composition, and method for manufacturing spectacle lens
US-2024392141-A1 · Nov 28, 2024 · US
Spectacle lens, antifouling agent composition, and method for manufacturing spectacle lens
US-2024393504-A1 · Nov 28, 2024 · US
Photochromic compound, photochromic composition, photochromic article and spectacles
US-2024294825-A1 · Sep 5, 2024 · US
Electrochromic element and lens for spectacles
US-2024219796-A1 · Jul 4, 2024 · US
Recent patents
Latest publications not already listed above.
Electronic element for electronic light control spectacles
US-2024192526-A1 · Jun 13, 2024 · US
Electrochromic element and lens for spectacles
US-2024168314-A1 · May 23, 2024 · US
Electrochromic element and lens for spectacles
US-2024151991-A1 · May 9, 2024 · US
Photochromic composition, photochromic article, and spectacles
US-2024103200-A1 · Mar 28, 2024 · US
Photochromic composition, photochromic article, and spectacles
US-2024059959-A1 · Feb 22, 2024 · US
Photochromic compound, photochromic composition, photochromic article and eyeglasses
US-2023416218-A1 · Dec 28, 2023 · US
Optical article, spectacles, and photochromic compound
US-2023359068-A1 · Nov 9, 2023 · US
Photochromic compound, photochromic composition, photochromic article, and eyeglasses
US-2023340318-A1 · Oct 26, 2023 · US
Photochromic compound, photochromic composition, photochromic article and spectacles
US-2023323197-A1 · Oct 12, 2023 · US
Photochromic composition, photochromic article, and spectacles
US-2023227717-A1 · Jul 20, 2023 · US
Organic electroluminescence composition, material for organic electroluminescence element, solution of material for organic electroluminescence element, and organic electroluminescence element
US-10833281-B2 · Nov 10, 2020 · US
Compound, organic electroluminescent element material using same, organic electroluminescent element using this material, and electronic device
US-10763442-B2 · Sep 1, 2020 · US
Compound, composition, organic electroluminescence element, and electronic device
US-10538514-B2 · Jan 21, 2020 · US
Compound, organic electroluminescent element material using same, organic electroluminescent element using this material, and electronic device
US-2019148649-A1 · May 16, 2019 · US
Composition, compound, material for organic electroluminescence element, ink composition, organic electroluminescence element, and electronic device
US-10290815-B2 · May 14, 2019 · US
Compound, organic electroluminescent element material using same, organic electroluminescent element using this material, and electronic device
US-10217945-B2 · Feb 26, 2019 · US
Polymer compound, material for electronic elements, material for organic electroluminescent elements, and organic electroluminescent element
US-10038143-B2 · Jul 31, 2018 · US
Compound, organic electroluminescence element material, ink composition, organic electroluminescence element, electronic device, and method for producing compound
US-10032991-B2 · Jul 24, 2018 · US
High molecular compound, organic electroluminescence element material, organic electroluminescence element, and electronic device
US-2018166632-A1 · Jun 14, 2018 · US
Cross-conjugated polymer, material for electronic element, material for organic electroluminescent element, and organic electroluminescent element
US-2018090687-A1 · Mar 29, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Idemitsu Kosan Co | 30 |
| Hoya Lens Thailand Ltd | 20 |
| Sony Corp | 3 |
| Joled Inc | 1 |
| Kawakami Hironori | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H10K50/11 | 24 |
| H10K2101/10 | 22 |
| H10K85/6572 | 21 |
| C09K11/06 | 20 |
| H01L51/0072 | 19 |