Liquid ejection device and liquid ejection method
US-2019366736-A1 · Dec 5, 2019 · US
using arrays of radiation sources (B41J2/475 takes precedence)
using arrays of radiation sources (B41J2/475 takes precedence) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B41J2/447 |
| Official title | using arrays of radiation sources (B41J2/475 takes precedence) |
| Display label | using arrays of radiation sources (B41J2/475 takes precedence) |
| Total patents | 196 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 13 |
| 2017 | 17 |
| 2018 | 16 |
| 2019 | 21 |
| 2020 | 32 |
| 2021 | 17 |
| 2022 | 20 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 26 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Light emitting component, print head and image forming apparatus
US-10471734-B2 · Nov 12, 2019 · US
Improvements in thermal transfer printing
US-2019315118-A1 · Oct 17, 2019 · US
Optical writing device, image forming device, and manufacturing method of optical writing device
US-10211260-B2 · Feb 19, 2019 · US
System for forming structure on print medium
US-2018354274-A1 · Dec 13, 2018 · US
Optical writing device, image forming device, and manufacturing method of optical writing device
US-2018350882-A1 · Dec 6, 2018 · US
Imaging Device
US-2018329306-A1 · Nov 15, 2018 · US
Light emitting component, print head and image forming apparatus
US-2018309890-A1 · Oct 25, 2018 · US
Optical print head and image forming device
US-2018250952-A1 · Sep 6, 2018 · US
Switchable mirror system for reflecting laser input during printing
US-10067362-B2 · Sep 4, 2018 · US
System for forming structure on print medium
US-10065431-B2 · Sep 4, 2018 · US
Imaging device
US-10061200-B2 · Aug 28, 2018 · US
Switchable mirror lens system for redirecting laser energy during periods of non-printing
US-10054857-B2 · Aug 21, 2018 · US
Laser printing system
US-2018201028-A1 · Jul 19, 2018 · US
Exposure head, exposure unit, method of manufacturing exposure unit, light receiving head, light receiving unit, and method of manufacturing light receiving unit
US-9981482-B2 · May 29, 2018 · US
Switchable mirror lens system for redirecting laser energy during periods of non-printing
US-2018136564-A1 · May 17, 2018 · US
Switchable mirror system for reflecting laser input during printing
US-2018136495-A1 · May 17, 2018 · US
Lens array and image forming apparatus
US-2018128945-A1 · May 10, 2018 · US
Beam exposure device
US-9964857-B2 · May 8, 2018 · US
Image aware laser diode array shutter for reduced incident energy on dmd chip set
US-2018067300-A1 · Mar 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B41J2/447?
- CPC B41J2/447 is the Cooperative Patent Classification code for “using arrays of radiation sources (B41J2/475 takes precedence).”
- How many patents are filed under CPC B41J2/447 (using arrays of radiation sources (B41J2/475 takes precedence))?
- Our database includes 196 publications tagged with this CPC code.
- Is patent activity under CPC B41J2/447 growing?
- Publication counts under this code: 10 in 2024 vs 26 in 2025 (latest complete years).