Location History:
- Kawasaki, JA (1976)
- Kawasaki, JP (1982)
- Tokyo, JP (1984)
- machida, JP (1982 - 1993)
- Nishi-ku, Nagoya-shi, Aichi-ken, JP (1993)
Company Filing History:
6 out of 27,375 
4 out of 3,078 
2 out of 371 
Years Active: 1976-1993
Title: Isamu Akasaki: Pioneer in Gallium Nitride Technology
Introduction
Isamu Akasaki is a renowned inventor known for his significant contributions to the field of semiconductor technology. He is particularly recognized for his work with gallium nitride (GaN) materials, which have revolutionized the development of light-emitting diodes (LEDs) and laser diodes. Based in Machida, Japan, Akasaki holds a total of 11 patents that showcase his innovative spirit and technical expertise.
Latest Patents
Akasaki's latest patents include groundbreaking inventions such as the gallium nitride group compound semiconductor laser diode. This invention features at least one pn junction layer situated between an n-type layer and a p-type layer. The n-type layer is composed of a gallium nitride group compound semiconductor material defined by a specific composition equation. The p-type layer, which is doped with an acceptor impurity, is created through electron beam irradiation of a gallium nitride group compound semiconductor material. This improved laser diode emits light in the visible short wavelength spectrum, including blue, violet, and ultraviolet regions.
Another notable patent is the gallium nitride base semiconductor device. This device incorporates a single crystal of (Ga.sub.l-x Al.sub.x).sub.l-y In.sub.y N, which minimizes crystal defects and enhances crystallization and flatness. The fabrication method involves using a silicon substrate and forming an intermediate layer containing aluminum and nitrogen. This innovative approach allows for the creation of high-quality semiconductor devices.
Career Highlights
Throughout his career, Akasaki has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Toyoda Gosei Co., Ltd. His experience in these organizations has contributed to his development as a leading figure in semiconductor research and innovation.
Collaborations
Akasaki has collaborated with notable colleagues, including Yoshimasa Ohki and Katsuhide Manabe. These partnerships have furthered advancements in semiconductor technology and have played a crucial role in the success of his inventions.
Conclusion
Isamu Akasaki's contributions to gallium nitride technology have had a lasting impact on the field of semiconductors. His innovative patents and collaborations with industry leaders highlight his role as a pioneer in this vital area of research. His work continues to influence the development of advanced electronic devices and lighting solutions
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.