This inventor holds 3 USPTO granted patents. Top assignee: The Tokyo Electric Power Company, Incorporated. Active years: 2009-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiyoda-ku, JP (2009)
- Tokyo, JP (2010)
Company Filing History:
Years Active: 2009-2010
Title: Kazuomi Shirakawa: Innovator in Optical Sensor Technology
Introduction
Kazuomi Shirakawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical sensor technology, holding a total of 3 patents. His work focuses on enhancing measurement accuracy and simplifying sensor calibration processes.
Latest Patents
Shirakawa's latest patents include an optical sensor, an optical current sensor, and an optical voltage sensor. These inventions utilize a fast light intensity detection method that does not rely on a carrier signal. The optical sensor features a design where light from a source is modulated based on a physical value. It includes light receiving elements that divide light into two components with orthogonally polarized waves. Additionally, a variable optical attenuator and a variable amplifier are employed to calibrate both the zero point of the sensor output and its sensitivity. This calibration is achieved by adjusting the light attenuation or amplification factor based on the detected physical value.
His intensity modulation type optical sensor improves measurement accuracy by minimizing the influence of ripples in the light source. The sensor head receives modulated light based on an alternating current measured object, converting it into an electrical signal. A normalized received signal is then derived from the ratio of the AC and DC components of this signal. Furthermore, a reference signal is obtained by separating part of the incident light, which helps reduce noise and enhance accuracy.
Career Highlights
Kazuomi Shirakawa is associated with The Tokyo Electric Power Company, Incorporated, where he applies his expertise in optical sensor technology. His innovative work has positioned him as a key figure in the advancement of sensor applications.
Collaborations
Shirakawa collaborates with Kiyoshi Kurosawa, contributing to the development of cutting-edge technologies in their field.
Conclusion
Kazuomi Shirakawa's contributions to optical sensor technology demonstrate his commitment to innovation and precision in measurement. His patents reflect a deep understanding of the complexities involved in sensor design and calibration.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile