This inventor holds 93 USPTO granted patents and 9 published patent applications, plus 2 CIPO patents and 5 EPO patents, primarily in Semiconductor Devices (CPC class H04N5-32). Top assignees: Sony Corporation, Canon Kabushiki Kaisha, Victor Company of Japan, Limited. Active years: 1976-2024.
Inventors with similar research interests:
Location History:
- Neyagawa, JA (1976)
- Fusa, JP (1986)
- Hashima, JP (1988)
- Fussa, JP (1985 - 1989)
- Neyagawa, JP (1990)
- Yokosuka, JP (1989 - 1992)
- Fujisawa, JP (1982 - 2003)
- Chiba, JP (2009)
- Yokohama, JP (1989 - 2015)
- Hyogo, JP (2013 - 2017)
- Kanagawa, JP (2014 - 2019)
- Tokyo, JP (1987 - 2023)
Company Filing History:
25 out of 58,144 
23 out of 92,750 
20 out of 2,887 
Years Active: 1976-2024
Areas of Expertise:
Title: Yasuhiro Yamada: Innovator in Electrical Device Technology
Introduction
Yasuhiro Yamada is a prominent inventor based in Kanagawa, Japan, known for his extensive contributions to electrical device technology. With an impressive portfolio of 93 patents, Yamada has established himself as a significant figure in the field of innovation.
Latest Patents
Among his latest patents are groundbreaking inventions such as a bidirectional switch, an electrical device, and a multi-level inverter. These innovations feature elaborate structures where a Gallium Nitride (GaN) layer is strategically formed over a substrate, with an Aluminum Gallium Nitride (AlGaN) layer positioned atop the GaN layer. The design includes various electrodes and p-type AlGaN layers, ensuring electrical insulation from all source and gate electrodes. Notably, the bidirectional switch element includes a terminal that connects the substrate to a fixed potential node, further enhancing its functionality.
Career Highlights
Yamada has made significant contributions to major companies in the electronics industry, including Sony Corporation and Canon Kabushiki Kaisha. His role at these organizations has allowed him to spearhead innovative projects, focusing on the development of advanced electrical devices.
Collaborations
Throughout his career, Yamada has collaborated with notable individuals like Hiroshi Tanioka and Tsutomu Tanaka. These collaborations have played a vital role in fostering an environment of creativity and innovation, leading to the successful development of numerous patented technologies.
Conclusion
Yasuhiro Yamada's remarkable career and contributions to the field of electrical devices showcase his dedication to innovation. His extensive patent portfolio reflects his commitment to advancing technology, making a lasting impact on the industry. As he continues to innovate, the future of electrical device technology looks promising, thanks to inventors like Yamada.