Company Filing History:
3 out of 42,517 
1 out of 8 
1 out of 1 Years Active: 1987-1997
Title: Hirosi Akiyama: Innovator in Semiconductor and Nuclear Fusion Technologies
Introduction
Hirosi Akiyama is a notable inventor based in Hitachi, Japan. He has made significant contributions to the fields of semiconductor devices and nuclear fusion technology. With a total of 4 patents to his name, Akiyama's work has had a profound impact on the reliability and efficiency of electronic devices.
Latest Patents
Akiyama's latest patents include a semiconductor device having a thermal stress resistance structure. This innovative device enhances the reliability of electric power control by preventing warping of metal support plates due to thermal stress. This design effectively reduces the occurrence of cracks and gaps in the brazing fillers, thereby prolonging the product's lifetime. Another significant patent is for a nuclear fusion reactor that features a new vacuum vessel for enclosing plasma particles. This reactor wall is designed with a piled structure, utilizing heat-resisting ceramic tiles that are metallurgically bonded to a metal-base body, enhancing its durability and efficiency.
Career Highlights
Throughout his career, Akiyama has worked with prominent companies such as Hitachi, Ltd. and Hitachi Haramachi Electronics Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Akiyama has collaborated with notable coworkers, including Hisanori Okamura and Mutuo Kamoshita. Their combined expertise has fostered a creative environment that has led to groundbreaking inventions.
Conclusion
Hirosi Akiyama's contributions to semiconductor and nuclear fusion technologies exemplify his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to enhancing the reliability and efficiency of modern technology.