This inventor holds 1 USPTO granted patent. Top assignees: Nippon Telegraph and Telephone Corporation, Seiko Instruments Inc. Active years: 1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 5,300 
1 out of 2,903 
Years Active: 1995
Title: Seiichi Tanuma: Inventor of a Mechanical Optical Switch
Introduction
Seiichi Tanuma is an inventor based in Tokyo, Japan. His recorded patent work includes an invention for a mechanical optical switch, and he is associated with Seiko Instruments Inc. and Nippon Telegraph and Telephone Corporation.
Latest Patents
Tanuma’s listed patent, “Mechanical optical switch,” describes a system that redirects optical signals using pairs of optical fibers. One pair is held in a cantilever arrangement, while the fibers are aligned with a second pair at a square opening in an alignment material. Magnetic bodies attached to the cantilevered fibers interact with surrounding solenoid coils and oppositely aligned permanent magnets to enable switching. The supplied information lists 1 patent for Tanuma.
Career Highlights
Tanuma’s work connects optical switching with mechanical and magnetic components. His professional associations include Seiko Instruments Inc. and Nippon Telegraph and Telephone Corporation.
Collaborations
Tanuma’s listed coworkers include Yukiya Funanami and Nobuo Suzuki.
Conclusion
Seiichi Tanuma’s recorded invention combines optical-fiber alignment, magnetic forces, and solenoid coils in a mechanical optical switch, reflecting his contributions to patentable technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile