Location History:
- Hitachi, JP (2013)
- Ibaraki, JP (2021)
Company Filing History:
2 out of 6,892 
1 out of 836 
1 out of 40 Years Active: 2013-2025
Title: Tetsuji Fujimoto: Innovator in Gallium Nitride Technology
Introduction
Tetsuji Fujimoto is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of gallium nitride substrates and crystals. With a total of three patents to his name, Fujimoto's work has had a notable impact on the industry.
Latest Patents
Fujimoto's latest patents include a gallium nitride single crystal substrate and a nitride crystal. The gallium nitride single crystal substrate is characterized by a diameter of 50 mm or more, with specific etching properties that enhance its quality. The nitride crystal aims to improve the performance and manufacturing yield of semiconductor devices, featuring a composition formula of InAlGaN and a hardness exceeding 22.0 GPa.
Career Highlights
Throughout his career, Tetsuji Fujimoto has worked with reputable companies such as Sumitomo Chemical Company, Limited and Hitachi Cable, Inc. His experience in these organizations has contributed to his expertise in semiconductor materials and technologies.
Collaborations
Fujimoto has collaborated with notable colleagues, including Toshio Kitamura and Kazuyuki Ilzuka. These partnerships have fostered innovation and advancements in their respective fields.
Conclusion
Tetsuji Fujimoto's contributions to gallium nitride technology and his collaborations with esteemed colleagues highlight his role as a key innovator in the semiconductor industry. His patents reflect a commitment to enhancing the quality and performance of semiconductor devices.
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.