Location History:
- Takatsuki, JP (1979)
- Mie, JP (1990 - 1994)
- Nabari, JP (2003 - 2005)
- Tottori, JP (2008)
Company Filing History:
Years Active: 1979-2008
Title: Takayoshi Maeda: Innovator in Gallium Nitride Semiconductor Technology
Introduction
Takayoshi Maeda is a prominent inventor based in Nabari, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of gallium nitride (GaN) single crystal substrates. With a total of 9 patents to his name, Maeda's work has advanced the capabilities of III-V group compound semiconductors.
Latest Patents
One of Maeda's latest patents is focused on the "Substrate of gallium nitride single crystal and process for producing the same." This invention outlines a method for producing an epitaxial substrate with reduced dislocation density. The process involves covering a III-V group compound semiconductor crystal with a mask made of a different material, allowing for the growth of the semiconductor crystal laterally. This innovative approach results in an epitaxial substrate that exhibits low dislocation density and minimal warp.
Another notable patent is the "Method of manufacturing III-V group compound semiconductor." This method describes the formation of a base layer on a substrate, followed by the epitaxial growth of a III-V group nitride compound semiconductor. By maintaining a deposition pressure of not lower than 800 Torr, the crystallinity of the semiconductor is significantly improved, leading to a reduction in defect density.
Career Highlights
Takayoshi Maeda is currently associated with Sumitomo Chemical Company, Limited, where he continues to push the boundaries of semiconductor research and development. His work has not only contributed to the advancement of technology but has also positioned him as a key figure in the semiconductor industry.
Collaborations
Maeda has collaborated with notable coworkers, including Kazumasa Hiramatsu and Hideto Miyake. Their combined expertise has fostered innovation and progress in the field of semiconductor technology.
Conclusion
Takayoshi Maeda's contributions to gallium nitride semiconductor technology have established him as a leading inventor in the industry. His innovative patents and ongoing work at Sumitomo Chemical Company, Limited, continue to shape the future of semiconductor applications.
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.