Location History:
- Yokohama, JP (1991)
- Kanagawa, JP (1990 - 2003)
- Tokyo, JP (1995 - 2014)
Company Filing History:
5 out of 58,132 
2 out of 10,284 
Years Active: 1990-2014
Title: Keigo Aga: Innovator in Light-Emitting Devices
Introduction
Keigo Aga is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of light-emitting devices, holding a total of 7 patents. His innovative work has paved the way for advancements in optical technologies.
Latest Patents
One of his latest patents is a light-emitting device and method of manufacturing the same. This invention features a light-emitting device that is easily mounted onto a supporting base. The device includes a supporting base with a depression section on its top surface, which has an inclined surface on its side wall. A first light-emitting element is arranged on the bottom surface of the depression section, while a second light-emitting element is positioned on the first light-emitting element and the supporting base.
Another notable patent is a semiconductor laser driving method and optical disc apparatus. This method allows for the use of a semiconductor laser in a low noise condition when RF-modulated. It involves driving the semiconductor laser under conditions where the average optical output is offset from peaks in the noise characteristics curve. The RF modulating conditions are carefully selected to ensure that the peaks do not enter the range of P*±0.5 mW relative to the average optical output P*.
Career Highlights
Throughout his career, Keigo Aga has worked with renowned companies such as Sony Corporation and Sumitomo Electric Industries, Limited. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Keigo has collaborated with notable individuals in the industry, including Shoji Hirata and Nobuo Shiga. These partnerships have further enhanced his work and contributions to the field.
Conclusion
Keigo Aga is a distinguished inventor whose work in light-emitting devices has had a significant impact on technology. His patents reflect his innovative spirit and dedication to advancing optical technologies.