Location History:
- Gunma-ken, JP (1998)
- Annaka, JP (1995 - 2002)
Company Filing History:
2 out of 1,099 
1 out of 7 Years Active: 1995-2002
Title: The Innovations of Makoto Kawasaki
Introduction
Makoto Kawasaki is a notable inventor based in Annaka, Japan. He has made significant contributions to the field of semiconductor technology, particularly in light-emitting devices. With a total of 3 patents to his name, Kawasaki's work has advanced the efficiency and performance of these devices.
Latest Patents
Kawasaki's latest patents include a gallium phosphide luminescent device. This invention improves the luminance of GaP light-emitting devices by providing a nitrogen-doped low carrier concentration layer. By controlling both donor and acceptor concentrations below 1×10/cm at the p-n junction, the luminance can be enhanced by 20 to 30% compared to conventional devices. Additionally, he has developed a light-emitting device that features a double heterojunction structure. This device consists of a first cladding layer made of a p-type mixed crystal compound semiconductor, a p-type active layer, and a second cladding layer. The design allows for higher luminance and improved emission efficiency.
Career Highlights
Throughout his career, Kawasaki has worked with prominent companies in the semiconductor industry. Notably, he has been associated with Shin-Etsu Handotai Co., Ltd. and Shin-Etsu Handotai Kabushiki Kaisha. His work in these organizations has contributed to the development of advanced semiconductor technologies.
Collaborations
Kawasaki has collaborated with several talented individuals in his field, including Masato Yamada and Susumu Higuchi. These collaborations have fostered innovation and have led to the successful development of new technologies.
Conclusion
Makoto Kawasaki's contributions to the field of semiconductor technology, particularly in light-emitting devices, have been significant. His innovative patents and collaborations highlight his role as a leading inventor in this domain.