Location History:
- Minato-ku, JP (2005 - 2006)
- Shizuoka, JP (2006)
- Tokyo, JP (2008)
Company Filing History:
Years Active: 2005-2008
Title: Teruhisa Sahashi: Innovator in Optical Technology
Introduction
Teruhisa Sahashi is a prominent inventor based in Minato-ku, Japan. He has made significant contributions to the field of optical technology, holding a total of 4 patents. His work focuses on developing advanced optical attenuators that enhance performance and reliability.
Latest Patents
Sahashi's latest patents include an innovative optical attenuator designed to increase dynamic range while reducing temperature dependence. This optical attenuator features a Faraday rotational angle variable device that applies an external magnetic field to light polarized by a garnet crystal. Additionally, it incorporates a polarizer and an analyzer positioned at the front and rear of the optical axis. The design ensures that the angle x formed between the plane of polarization of the light and the magnetic field orthogonal to the optical axis meets specific criteria for optimal performance.
Another notable invention is the reflective variable light attenuator, which is a reflection-type variable optical attenuator. This device consists of a main attenuator unit that includes a first birefringent crystal plate, a Faraday rotational angle varying unit, and a second birefringent crystal plate. The design allows light entering from the input port to make a round trip within the main attenuator unit before exiting through the output port.
Career Highlights
Teruhisa Sahashi is currently employed at FDK Corporation, where he continues to innovate in the field of optical technologies. His work has garnered attention for its practical applications and advancements in optical performance.
Collaborations
Sahashi has collaborated with notable colleagues, including Isao Kojima and Hidenori Nakada, contributing to the development of cutting-edge optical technologies.
Conclusion
Teruhisa Sahashi's contributions to optical technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative designs continue to push the boundaries of optical performance and reliability.