This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignee: Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1985-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1985-1986
Title: Atsushi Ishihara: Innovator in Optical Technology
Introduction
Atsushi Ishihara is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, holding a total of 4 patents. His work focuses on enhancing the functionality and efficiency of optical devices.
Latest Patents
Ishihara's latest patents include a position detecting apparatus and a rotatable memory disk apparatus. The position detecting apparatus is designed to optically detect the scale pattern of an optical scale that moves with the optical head of an optical disk instrument. It generates an analog signal corresponding to the pitch of the scale graduation. The photosensor used in this apparatus has a light receiving surface that is half the pitch of the scale graduation. The analog signal is converted to digital signals by an A/D converter, allowing for precise detection of the optical head's position.
The rotatable memory disk apparatus features a memory disk with multiple tracks driven by a motor. It includes a control circuit for positioning an optical head on a specific track. A speed control device ensures that the disk rotates at a speed corresponding to the addressed track. This device consists of a conversion circuit, a detector for obtaining a rotational speed signal, and a control device that manages the disk's rotational speed.
Career Highlights
Atsushi Ishihara is currently employed at Tokyo Shibaura Denki Kabushiki Kaisha, a company known for its advancements in electrical and electronic equipment. His innovative work has contributed to the development of cutting-edge optical technologies.
Collaborations
Ishihara has collaborated with notable coworkers, including Tomohisa Yoshimaru and Katsumi Kimoto. Their combined expertise has furthered the advancements in the projects they have worked on together.
Conclusion
Atsushi Ishihara's contributions to optical technology through his patents and collaborations highlight his role as a significant innovator in the field. His work continues to influence advancements in optical devices and systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile