Location History:
- late of Santa Clara, CA (US) (2002)
- late of San Jose, CA (US) (2003)
- San Jose, CA (US) (1999 - 2005)
- Los Angeles, CA (US) (2005)
Company Filing History:
5 out of 133 
1 out of 4,667 
1 out of 1 
Years Active: 1999-2005
Title: The Innovative Contributions of Changhua Chen
Introduction
Changhua Chen, based in San Jose, CA, is a prominent inventor who has made significant strides in the field of light-emitting devices, holding an impressive portfolio of 10 patents. His innovative work focuses on enhancing the efficiency and functionality of III-nitride light-emitting devices.
Latest Patents
Among his latest patents is the groundbreaking work on the formation of Ohmic contacts in III-nitride light-emitting devices. This invention emphasizes optimizing the p-type layers of GaN-based light-emitting devices to form reliable Ohmic contacts with metal. The patent details several embodiments, including a p-type GaN transition layer with specific resistivity and alternative configurations involving III-V semiconductors and superlattices. Additionally, Chen has developed a novel semiconductor light-emitting diode that features closely spaced n and p electrodes on the same side of a substrate, characterized by a small footprint, enhancing device integration.
Career Highlights
Changhua Chen has worked with several esteemed companies in the tech industry, including Lumileds Lighting U.S., LLC and Agilent Technologies, Inc. His expertise and innovative approach have allowed him to contribute significantly to advancements in lighting technology.
Collaborations
Throughout his career, Chen has collaborated with notable colleagues such as R Scott Kern and Werner K Goetz, further enhancing the development of innovative technologies in the lighting sector.
Conclusion
Changhua Chen's contributions to the field of light-emitting devices illustrate his dedication to innovation and advancement. His patents not only showcase his technical prowess but also his ability to collaborate effectively with fellow professionals, marking him as a key figure in the evolution of lighting technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.