This inventor holds 3 USPTO granted patents. Top assignee: Sony Corporation. Active years: 1984-1987.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ebina, JP (1984)
- Kanagawa, JP (1987)
Company Filing History:
Years Active: 1984-1987
Title: Innovations of Tadashi Motoyama
Introduction
Tadashi Motoyama is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of optical information technology. With a total of 3 patents, his work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is an optical information reproducing apparatus with improved skew error. This invention includes an optical pick-up device mounted on a tiltable optical block, which utilizes a laser beam source for generating a laser beam. It also features a photo detector that detects the reflected beam from the recording surface to reproduce the recorded information. The apparatus includes a device for rotating the record medium and a skew error detector that generates a skew error signal. This signal has both D.C. and A.C. components, which are processed by a control circuit to maintain the optical axis of the pick-up device perpendicular to the recording surface.
Another significant patent is a video signal recording and reproducing apparatus. This apparatus is designed to work with a disc as the recording medium. It comprises a head assembly and a disc rotating drive, which rotates the disc in relation to the head assembly. The system includes a signal path that extends from an input terminal to the head assembly, along with control circuits that manage the disc rotation and delay the video signal to ensure accurate recording and reproduction.
Career Highlights
Tadashi Motoyama is currently employed at Sony Corporation, a leading company in the electronics industry. His work at Sony has allowed him to develop innovative technologies that enhance the performance of optical and video signal systems.
Collaborations
One of his notable coworkers is Toru Otsuka, with whom he has collaborated on various projects. Their combined expertise has contributed to advancements in optical technology.
Conclusion
Tadashi Motoyama's contributions to optical information technology through his patents and work at Sony Corporation highlight his role as an influential inventor. His innovations continue to shape the future of optical and video signal systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile