Location History:
- Hekinan, JP (2003 - 2005)
- Aichi, JP (2005)
- Nagoya, JP (2004 - 2014)
- Handa, JP (2004 - 2016)
Company Filing History:
27 out of 4,916 
1 out of 314 Years Active: 2003-2016
Title: Innovations in Semiconductor Technology: The Contributions of Shigeaki Sumiya
Introduction: Shigeaki Sumiya, based in Handa, Japan, has made significant strides in the field of semiconductor technology. With an impressive portfolio comprising 27 patents, his work has contributed to advancements in electronic devices and materials.
Latest Patents: Sumiya's latest patents demonstrate his focus on enhancing semiconductor devices. One notable invention is a semiconductor device that effectively suppresses reverse leakage current while maintaining high mobility in a two-dimensional electron gas. This device features an epitaxial substrate composed of multiple layers of group-III nitride distributed in a specific orientation to optimize performance.
Additionally, he has developed an innovative method for manufacturing an epitaxial substrate that minimizes warping and prevents cracking. This substrate employs a silicon base layered with superlattice groups formulated from varying compositions of group-III nitrides. Such innovations reflect Sumiya's commitment to enhancing semiconductor efficiency and reliability.
Career Highlights: Throughout his career, Shigeaki Sumiya has collaborated with leading corporations such as NGK Insulators, Inc. and Dowa Electronics Materials Co., Ltd., where he leveraged his expertise to facilitate technological advancements. His work has not only contributed to the success of his employers but also set benchmarks in semiconductor technology that many in the industry strive to achieve.
Collaborations: In his professional journey, Sumiya has had the opportunity to work alongside notable colleagues, including Mitsuhiro Tanaka and Makoto Miyoshi. Their joint efforts underscore the collaborative nature of innovation in the semiconductor field, fostering a robust exchange of ideas and expertise leading to groundbreaking inventions.
Conclusion: Shigeaki Sumiya’s contributions to semiconductor technology are marked by a string of innovative patents and collaborations with distinguished companies and professionals. His relentless pursuit of excellence continues to inspire both current and future inventors in the electronics industry, highlighting the crucial role that creativity and technical expertise play in shaping modern 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.