Optical semiconductor element, optical module, and method for manufacturing optical semiconductor element
US-2024388064-A1 · Nov 21, 2024 · US
Buried mesa structure {; Striped active layer}
Buried mesa structure {; Striped active layer} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S5/227 |
| Official title | Buried mesa structure {; Striped active layer} |
| Display label | Buried mesa structure {; Striped active layer} |
| Total patents | 377 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 23 |
| 2017 | 35 |
| 2018 | 41 |
| 2019 | 38 |
| 2020 | 30 |
| 2021 | 40 |
| 2022 | 28 |
| 2023 | 41 |
| 2024 | 38 |
| 2025 | 31 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Laser diode and method of manufacturing laser diode
US-2017358902-A1 · Dec 14, 2017 · US
Semiconductor laser device and laser light irradiation apparatus
US-2017357067-A1 · Dec 14, 2017 · US
Tunable laser source
US-2017353008-A1 · Dec 7, 2017 · US
Semiconductor laser device
US-9831636-B2 · Nov 28, 2017 · US
Semiconductor chip and method for producing a semiconductor chip
US-2017330996-A1 · Nov 16, 2017 · US
Laser diode chip and flip chip type laser diode package structure
US-9787053-B2 · Oct 10, 2017 · US
Quantum cascade semiconductor laser
US-9774168-B2 · Sep 26, 2017 · US
Optical transmission module
US-2017250521-A1 · Aug 31, 2017 · US
Optical amplifier devices and silicon photonic circuit devices comprising such optical amplifier devices
US-9742150-B1 · Aug 22, 2017 · US
Optical module
US-9698566-B1 · Jul 4, 2017 · US
Semiconductor laser element and method of making semiconductor laser device
US-9692204-B2 · Jun 27, 2017 · US
Manufacturable RGB display based on thin film gallium and nitrogen containing light emitting diodes
US-9653642-B1 · May 16, 2017 · US
Semiconductor laser device
US-2017063042-A1 · Mar 2, 2017 · US
Low voltage laser diodes on {20-21} gallium and nitrogen containing substrates
US-9543738-B2 · Jan 10, 2017 · US
Thermal compensation for burst-mode laser wavelength drift
US-9537287-B2 · Jan 3, 2017 · US
Semiconductor device
US-2016351392-A1 · Dec 1, 2016 · US
Semiconductor laser device
US-2016352075-A1 · Dec 1, 2016 · US
Integrated semiconductor laser device and semiconductor laser module
US-2016336719-A1 · Nov 17, 2016 · US
Laser diode chip and flip chip type laser diode package structure
US-2016315443-A1 · Oct 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S5/227?
- CPC H01S5/227 is the Cooperative Patent Classification code for “Buried mesa structure {; Striped active layer}.”
- How many patents are filed under CPC H01S5/227 (Buried mesa structure {; Striped active layer})?
- Our database includes 377 publications tagged with this CPC code.
- Is patent activity under CPC H01S5/227 growing?
- Publication counts under this code: 38 in 2024 vs 31 in 2025 (latest complete years).