Location History:
- Yokohama, JA (1976 - 1977)
- Yokohama, JP (1979 - 1989)
Company Filing History:
5 out of 681 
2 out of 2,916 
1 out of 52,735 
Years Active: 1976-1989
Title: Akinobu Kasami: Innovator in Group III Element-Phosphorus Compounds
Introduction
Akinobu Kasami is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of materials science, particularly in the synthesis of Group III element-phosphorus compounds. With a total of 8 patents to his name, his work has paved the way for advancements in semiconductor technology.
Latest Patents
One of his latest patents is a method of synthesizing a Group III element-phosphorus compound. This innovative method involves subjecting a mixture of the Group III element and phosphorus to a liquid-phase reaction under heated and pressurized conditions. As a result, a polycrystal compound of the Group III element and phosphorus is formed. This compound can be immediately pulled up using a seed crystal to create a monocrystal of the Group III element-phosphorus compound. Another notable patent is for a green light emitting device, which includes an n-type gallium phosphide (GaP) substrate, an n-type GaP layer, and a p-type GaP layer laminated on the n-type GaP substrate. The net donor concentration in the n-type GaP layer decreases abruptly in steps from the GaP substrate side to the p-type GaP layer side, with nitrogen contained only in the n-type GaP layer portion closest to the p-type GaP layer.
Career Highlights
Throughout his career, Akinobu Kasami has worked with notable companies such as Tokyo Shibaura Electric Co., Ltd. and Tokyo Shibaura Denki Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in the field of semiconductor materials.
Collaborations
Some of his coworkers include Makoto Naito and Masaru Kawachi, who have collaborated with him on various projects and patents.
Conclusion
Akinobu Kasami's innovative work in the synthesis of Group III element-phosphorus compounds and his contributions to green light emitting devices highlight his significant impact on materials science and semiconductor technology. His patents continue to influence advancements in these fields.