Location History:
- Fujisawa, JP (1995)
- Yokohama, JP (1997 - 2005)
Company Filing History:
Years Active: 1995-2005
Title: Teruhisa Azumaguchi: Innovator in Optical Technology
Introduction
Teruhisa Azumaguchi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, holding a total of 3 patents. His work primarily focuses on enhancing the performance and reliability of semiconductor laser devices.
Latest Patents
One of Azumaguchi's latest patents is for optical transmitter modules. The invention aims to reduce the temperature dependence of an etalon used as a wavelength locker for semiconductor laser devices. Specifically, it addresses the issue of wavelength locking performance degradation due to temperature variations. The solution involves the use of an air gap etalon, which consists of a media plate and parallel plane plates on either side, creating a stable environment for wavelength locking.
Another significant patent is for a low-constant voltage supply circuit. This constant-voltage power source circuit features a first current mirror circuit with a diode and a first transistor, along with a second current mirror circuit containing at least two additional transistors. The design ensures that the current flowing through the circuits remains stable, regardless of variations in power source voltage. This innovation allows for a consistent output voltage, enhancing the reliability of electronic devices.
Career Highlights
Throughout his career, Azumaguchi has worked with prominent companies such as Hitachi, Ltd. and Opnext Japan, Inc. His experience in these organizations has contributed to his expertise in optical technologies and semiconductor devices.
Collaborations
Azumaguchi has collaborated with notable colleagues, including Akisada Moriguchi and Kohei Ishizuka. These partnerships have fostered innovation and development in their respective fields.
Conclusion
Teruhisa Azumaguchi's contributions to optical technology and semiconductor devices highlight his role as a significant inventor. His patents reflect a commitment to improving the performance and reliability of electronic systems. His work continues to influence advancements in the industry.