Photochromic compound, photochromic composition, photochromic article and spectacles
US-12577455-B2 · Mar 17, 2026 · US
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Kobayashi Kei patents
Kobayashi Kei is listed as an inventor on 113 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Kobayashi Kei |
| Total patents | 113 |
| First publication | Jan 29, 2015 |
| Latest publication | Mar 17, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Optical article and method for producing optical article
US-12572064-B2 · Mar 10, 2026 · US
Photochromic compound, photochromic composition, photochromic article and eyeglasses
US-2026042742-A1 · Feb 12, 2026 · US
Secondary battery system
US-12519335-B2 · Jan 6, 2026 · US
Temperature control device and substrate processing apparatus
US-12512339-B2 · Dec 30, 2025 · US
Non-aqueous electrolyte secondary battery with fixing tape having a laminated structure
US-12506179-B2 · Dec 23, 2025 · US
Optical article and method for producing optical article
US-12421365-B2 · Sep 23, 2025 · US
Polymerizable composition for optical article and optical article
US-12378347-B2 · Aug 5, 2025 · US
Cylindrical non-aqueous electrolyte secondary battery
US-2025201931-A1 · Jun 19, 2025 · US
Photochromic article and method for producing photochromic article
US-2025188291-A1 · Jun 12, 2025 · US
Recent patents
Latest publications not already listed above.
Polymerizable composition for optical article and optical article
US-2025188342-A1 · Jun 12, 2025 · US
Polymerizable composition for optical article and optical article
US-2025189825-A1 · Jun 12, 2025 · US
Nonaqueous electrolyte secondary battery
US-2025167306-A1 · May 22, 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
Oral composition containing inorganic porous material
US-2025049094-A1 · Feb 13, 2025 · US
Oral composition containing inorganic porous material
US-2025049098-A1 · Feb 13, 2025 · US
Oral composition
US-2025049099-A1 · Feb 13, 2025 · US
Vehicle
US-12091077-B2 · Sep 17, 2024 · US
Nonaqueous electrolyte secondary battery
US-2024297293-A1 · Sep 5, 2024 · US
Photochromic compound, photochromic composition, photochromic article and spectacles
US-2024294825-A1 · Sep 5, 2024 · US
Non-aqueous electrolyte secondary battery
US-2024258555-A1 · Aug 1, 2024 · US
Temperature control device, substrate processing apparatus, and liquid amount control method
US-2024222169-A1 · Jul 4, 2024 · US
Non-aqueous electrolyte secondary battery
US-2024204259-A1 · Jun 20, 2024 · US
Non-aqueous electrolyte secondary battery
US-12002928-B2 · Jun 4, 2024 · US
Reading device and image forming apparatus
US-11968339-B2 · Apr 23, 2024 · US
Imprint apparatus, imprint method, and manufacturing method of semiconductor device
US-11953825-B2 · Apr 9, 2024 · US
Secondary battery system
US-2024106257-A1 · Mar 28, 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
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Hoya Lens Thailand Ltd | 27 |
| Sanyo Electric Co | 26 |
| Tokyo Electron Ltd | 10 |
| Toshiba Memory Corp | 10 |
| Honda Motor Co Ltd | 10 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| Y02E60/10 | 35 |
| Y02P70/50 | 26 |
| H01M10/0525 | 24 |
| G02C7/102 | 23 |
| C09K9/02 | 23 |