Location History:
- Sakada, JP (1982)
- Sakadoshi, JP (1985)
- Sakado, JP (1981 - 1986)
- Tokyo, JP (1985 - 1989)
Company Filing History:
Years Active: 1981-1989
Title: Yasumasa Tomori: Innovator in Optical Technology
Introduction
Yasumasa Tomori is a prominent inventor based in Sakado, Japan. He has made significant contributions to the field of optical technology, holding a total of 15 patents. His innovative designs have advanced the functionality and efficiency of optical systems.
Latest Patents
One of Tomori's latest patents is the one-hand zoom lens barrel. This invention allows zooming by moving both the front and rear lenses, while focusing is achieved by moving only the front lens. The design features a sliding ring that, when moved linearly for zooming, rotates a cam sleeve. A pin in the cam sleeve engages a cam groove in a moving frame for the front lens, enabling its linear movement. Additionally, another cam groove in the cam sleeve engages a pin in the frame for the rear lens, allowing it to move linearly as well. Focusing is accomplished through the threaded rotation of the frame for the front lens on the moving frame.
Another notable patent involves cam grooves for displacing lenses in an optical system. This invention allows lenses or lens groups to be displaced parallel to the optical axis by a lens-operating ring mounted on a support barrel. The cam grooves are designed to optimize the maximum lengths of displacement of vari-focal lenses, ensuring precise adjustments across the entire range of varying focal lengths.
Career Highlights
Yasumasa Tomori is currently employed at Asahi Kogaku Kogyo Kabushiki Kaisha, where he continues to innovate in the field of optics. His work has been instrumental in developing advanced optical technologies that enhance imaging capabilities.
Collaborations
Tomori has collaborated with notable coworkers, including Mituhiko Shimoda and Fumio Urano. Their combined expertise has contributed to the success of various projects and patents in the optical technology sector.
Conclusion
Yasumasa Tomori's contributions to optical technology through his innovative patents have significantly impacted the industry. His work exemplifies the spirit of invention and the pursuit of excellence in optical design.