Company Filing History:
Years Active: 2021-2022
Title: Hajime Ishihara: Innovator in Light Detection Technology
Introduction
Hajime Ishihara is a prominent inventor based in Hamamatsu, Japan. He has made significant contributions to the field of light detection technology. With a total of 2 patents to his name, Ishihara continues to push the boundaries of innovation in this area.
Latest Patents
Ishihara's latest patents include a light detection element and a light detection device. The light detection element features a semiconductor substrate with a light absorbing layer of a first conductivity type. This layer is formed on the semiconductor substrate, along with a cap layer of the same conductivity type. A semiconductor region of a second conductivity type is created within the cap layer, forming a pn junction. The depletion layer around the semiconductor region behaves differently under varying reverse bias conditions. The light detection device consists of a first photodiode and a second photodiode connected in series. It also includes a first light source that outputs pulsed light, which the first photodiode is sensitive to, and a signal output unit that provides a current as a detection signal.
Career Highlights
Hajime Ishihara is associated with Hamamatsu Photonics K.K., a company known for its advancements in optical technologies. His work has been instrumental in developing innovative solutions that enhance light detection capabilities.
Collaborations
Ishihara has collaborated with notable colleagues, including Mitsuhito Mase and Keiki Taguchi. These partnerships have contributed to the success of his projects and the advancement of technology in their field.
Conclusion
Hajime Ishihara's contributions to light detection technology exemplify his innovative spirit and dedication to advancing the field. His patents reflect a deep understanding of semiconductor technology and its applications.