Location History:
- Ibaraki-ken, JP (2010)
- Ibaraki, JP (2012)
- Ushiku, JP (2001 - 2015)
Company Filing History:
10 out of 2,347 
1 out of 984 
Years Active: 2001-2015
Title: Kazumasa Kiyomi: Innovator in Semiconductor Technology
Introduction
Kazumasa Kiyomi is a prominent inventor based in Ushiku, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of group-III nitride semiconductor crystals. With a total of 10 patents to his name, Kiyomi's work has had a substantial impact on the industry.
Latest Patents
Kiyomi's latest patents include a method for producing group-III nitride semiconductor crystals, substrates, and semiconductor light-emitting devices. This innovative method involves preparing a seed crystal with a non-polar plane and growing the group-III nitride semiconductor from this plane in a vapor phase. The growth process is designed to extend in the +C-axis direction of the seed crystal, resulting in a high-quality group III-V nitride semiconductor crystal with a large-area non-polar plane.
Career Highlights
Throughout his career, Kazumasa Kiyomi has worked with notable organizations such as Mitsubishi Chemical Corporation and Tohoku University. His expertise in semiconductor technology has positioned him as a key figure in advancing the field.
Collaborations
Kiyomi has collaborated with esteemed colleagues, including Kenji Shimoyama and Nobuyuki Hosoi. These partnerships have further enriched his research and development efforts in semiconductor technology.
Conclusion
Kazumasa Kiyomi's contributions to the field of semiconductor technology are noteworthy. His innovative methods and collaborations have paved the way for advancements in the production of high-quality semiconductor materials.
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.