Optical device
US-2026098946-A1 · Apr 9, 2026 · US
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Hayakawa Junichiro patents
Hayakawa Junichiro is listed as an inventor on 94 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hayakawa Junichiro |
| Total patents | 94 |
| First publication | Apr 9, 2015 |
| Latest publication | Apr 9, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Distance measuring apparatus
US-2026098942-A1 · Apr 9, 2026 · US
Optical detection device, optical distance measurement device, and non-transitory computer readable medium
US-12541012-B2 · Feb 3, 2026 · US
Light-emitting component, light-emitting element array chip, and optical measurement apparatus
US-12537361-B2 · Jan 27, 2026 · US
Semiconductor light emitter
US-12520633-B2 · Jan 6, 2026 · US
Light-emitting component, light-emitting element array chip, and optical measurement apparatus
US-12500389-B2 · Dec 16, 2025 · US
Light-emitting component, light-emitting element array chip, and optical measurement apparatus
US-12476439-B2 · Nov 18, 2025 · US
Light emitting apparatus and information processing apparatus
US-12418161-B2 · Sep 16, 2025 · US
Light emitting device and measurement apparatus
US-2025237766-A1 · Jul 24, 2025 · US
Light emitting device and distance measurement apparatus
US-2025199128-A1 · Jun 19, 2025 · US
Recent patents
Latest publications not already listed above.
Light emitting device and distance measurement apparatus
US-2025199135-A1 · Jun 19, 2025 · US
Light emitting device and distance measurement apparatus
US-2025199179-A1 · Jun 19, 2025 · US
Light emitting device and distance measurement apparatus
US-2025199126-A1 · Jun 19, 2025 · US
Light-emitting device, optical device, measuring device, and information processing device
US-12132295-B2 · Oct 29, 2024 · US
Drive device, distance measurement apparatus, and light emitting apparatus
US-2024345226-A1 · Oct 17, 2024 · US
Light emitting apparatus, drive device, and distance measurement apparatus
US-2024345227-A1 · Oct 17, 2024 · US
Drive device, light emitting apparatus, and distance measurement apparatus
US-2024349412-A1 · Oct 17, 2024 · US
Optical semiconductor element, optical semiconductor device, optical transmission system, and method of manufacturing optical semiconductor device
US-12119417-B2 · Oct 15, 2024 · US
Light-emitting array, light-emitting device, measurement apparatus, and method for manufacturing light-emitting array
US-2024106194-A1 · Mar 28, 2024 · US
Light emitting component, semiconductor-laminated substrate, and measurement apparatus
US-2024106193-A1 · Mar 28, 2024 · US
Light emitting device, optical distance-measuring device, and image forming apparatus
US-2023411558-A1 · Dec 21, 2023 · US
Optical distance-measuring device and image forming apparatus
US-2023408700-A1 · Dec 21, 2023 · US
Light-emitting component, optical measurement device, image forming apparatus, and method for manufacturing light-emitting component
US-2023378370-A1 · Nov 23, 2023 · US
Light emitting element array, light emitting device, and detection apparatus
US-2023333212-A1 · Oct 19, 2023 · US
Distance measurement system, light emitting device, and light receiving device
US-2023333219-A1 · Oct 19, 2023 · US
Semiconductor optical amplifier, optical output device, and distance measuring device
US-11789147-B2 · Oct 17, 2023 · US
Irradiation device and distance measurement apparatus
US-2023324517-A1 · Oct 12, 2023 · US
Light emitting element, light emitting element array, light emitting component, optical device, and optical measurement apparatus
US-2023307893-A1 · Sep 28, 2023 · US
Light emitting device and measurement apparatus
US-2023304789-A1 · Sep 28, 2023 · US
Light emitting device and measurement apparatus
US-2023243933-A1 · Aug 3, 2023 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Fujifilm Business Innovation Corp | 49 |
| Fuji Xerox Co Ltd | 45 |
| Tokyo Inst Tech | 4 |
| Fujifilm Corp | 3 |
| Fuji Xerox Co Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H01S5/423 | 46 |
| G01S7/4815 | 35 |
| H01S5/18313 | 33 |
| H01S5/04256 | 27 |
| H01S5/18311 | 27 |