This inventor holds 6 USPTO granted patents. Top assignees: Toyoda Gosei Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho, Research Development Corporation of Japan. Active years: 1987-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Nishio, JP (1987)
- Nagoya, JP (1990)
- Inazawa, JP (1993 - 1995)
- Nakashima-gun, JP (1999)
Company Filing History:
6 out of 3,086 
3 out of 1,153 
2 out of 256 
Years Active: 1987-1999
Title: Masahiro Kotaki: Innovator in Light Emitting Semiconductor Devices
Introduction
Masahiro Kotaki is a prominent inventor based in Inazawa, Japan. He has made significant contributions to the field of semiconductor technology, particularly in light-emitting devices. With a total of 6 patents to his name, Kotaki's work has advanced the capabilities of light-emitting diodes (LEDs) and other related technologies.
Latest Patents
One of Kotaki's latest patents is a light-emitting semiconductor device using nitrogen-Group III compound. This invention features an N-layer of N-type nitrogen-Group III compound semiconductor, which satisfies the formula Al.sub.x Ga.sub.y In.sub.1-x-y N. The device includes a P-layer of P-type nitrogen-Group III compound semiconductor and a Zn doped semi-insulating I-layer. This configuration allows the device to emit light in the range of 450 to 480 nm, enhancing its performance. Another notable patent is for a light-emitting device of gallium nitride compound semiconductor. This innovation allows the diode to emit blue light from a plane rather than dots, significantly improving luminous intensity. The design incorporates a dual structure of Ni layers, which helps prevent peeling and lowers the drive voltage for light emission.
Career Highlights
Throughout his career, Masahiro Kotaki has worked with notable companies such as Toyoda Gosei Co., Ltd. and Toyota Central R&D Labs, Inc. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Kotaki has collaborated with esteemed colleagues, including Katsuhide Manabe and Masafumi Hashimoto. These partnerships have fostered a collaborative environment that has led to groundbreaking advancements in the field.
Conclusion
Masahiro Kotaki's contributions to light-emitting semiconductor devices have made a significant impact on the industry. His innovative patents and collaborations highlight his dedication to advancing technology in this field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile