Location History:
- Yamatokoriyama, JP (1985 - 1995)
- Yamatotakada, JP (1997)
Company Filing History:
Years Active: 1985-1997
Title: The Innovations of Shohichi Katoh
Introduction
Shohichi Katoh is a prominent inventor based in Yamatokoriyama, Japan. He has made significant contributions to the field of photodetection and optical memory technology. With a total of 11 patents to his name, Katoh's work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is a photodetector with a multilayer filter. This invention discloses a photodetector that features a light-receiving substrate mounted on a recessed portion of a ceramic stem. An electrode pad is formed on a P-type layer of the light-receiving substrate, while another electrode pad is formed on an N-type layer. The optical multilayer filter is created on the light-receiving substrate, excluding the regions of the electrode pads. Additionally, an epoxy transparent resin is poured into the recessed portion of the stem and cured to cover the light-receiving substrate. The optical multilayer filter consists of amorphous low refractive index films made of SiC₂ and high refractive index films made of TiO₂, which are alternately stacked.
Another notable patent is related to an optical memory element and its manufacturing method. This method involves several steps, including disposing a resist film on a substrate and placing a photo-mask with a guide groove pattern over it. The process continues with forming a latent image of the guide groove pattern, developing it, and conducting an etching operation to create guide grooves in the substrate. Finally, a recording medium layer is disposed on the substrate with the guide grooves.
Career Highlights
Shohichi Katoh is associated with Sharp Kabushiki Kaisha Corporation, where he has been able to apply his innovative ideas and technical expertise. His work has contributed to advancements in optical technologies, enhancing the capabilities of photodetectors and memory elements.
Collaborations
Throughout his career, Katoh has collaborated with notable colleagues, including Masataka Itoh and Toshihisa Deguchi. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Shohichi Katoh's contributions to the fields of photodetection and optical memory technology are noteworthy. His innovative patents and collaborations have significantly advanced the industry, showcasing his expertise and dedication to innovation.