Company Filing History:
Years Active: 2014-2025
Title: The Innovations of Yoshitaka Sumitomo
Introduction
Yoshitaka Sumitomo is a prominent inventor based in Tokushima, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of six patents. His work has been instrumental in advancing the manufacturing processes of semiconductor elements.
Latest Patents
One of Yoshitaka Sumitomo's latest patents is a method of manufacturing a semiconductor element. This semiconductor element includes a substrate with a first surface, a second surface, and at least one lateral surface. The semiconductor layer is formed on the second surface, and the lateral surface features at least one flat region. The first region extends along a first direction parallel to the first surface, with a surface roughness larger than that of the flat region. Additionally, a second region extends along the same direction, positioned between the first region and the first surface, also exhibiting greater surface roughness than the flat region. The substrate contains a plurality of modified portions within its interior.
The method of manufacturing the semiconductor element involves several steps. The first step includes irradiating a laser beam to create a plurality of first modified portions aligned along a first direction. The second step also involves laser irradiation to form second modified portions adjacent to the first modified portions. Finally, the third step includes laser irradiation to create third modified portions that overlap with the first modified portions in the thickness direction of the substrate.
Career Highlights
Yoshitaka Sumitomo is associated with Nichia Corporation, a leading company in the field of semiconductor manufacturing. His innovative approaches and patented methods have contributed to the company's reputation for excellence in technology.
Collaborations
Yoshitaka Sumitomo has worked alongside notable colleagues, including Kazuki Yamaguchi and Haruki Takeda. Their collaborative efforts have further enhanced the advancements in semiconductor technology.
Conclusion
Yoshitaka Sumitomo's contributions to semiconductor technology through his patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future innovations.