Location History:
- Minowa, JP (1994)
- Minowa-machi, JP (1996 - 1998)
Company Filing History:
Years Active: 1994-1998
Title: Eiji Otsuka: Innovator in Lens Barrel Technology
Introduction
Eiji Otsuka is a notable inventor based in Minowa-machi, Japan. He has made significant contributions to the field of optical technology, particularly in the design and functionality of lens barrels. With a total of 3 patents to his name, Otsuka's work has had a lasting impact on the industry.
Latest Patents
Otsuka's latest patents focus on innovative lens barrel designs. One of his patents describes a lens barrel constructed of a cam slot, a lens cylinder, a memory means, a detecting means, a motor driving means, and a control means. The cam slot features a discontinuous area that corresponds to a parting line of a molding die used for manufacturing. The lens cylinder acts as a cam follower that engages with this cam slot. The memory means stores information indicating the location of the discontinuous area in the cam slot. The detecting means identifies the position of the cam follower within the cam slot. The motor driving means allows the lens cylinder to progress and retreat along the optical-axis direction by driving the cam slot and the lens cylinder relative to each other. The control means ensures that the motor driving means operates the lens cylinder to a position that deviates from the discontinuous area when the cam follower is in that area, by comparing the memory information with the detection information.
Career Highlights
Eiji Otsuka is currently employed at Olympus Optical Company, Ltd., where he continues to innovate in optical technology. His work has been instrumental in enhancing the functionality and efficiency of lens barrels, contributing to the advancement of optical devices.
Collaborations
Otsuka has collaborated with notable coworkers such as Minoru Hara and Kazuhiro Satoh. Their combined expertise has fostered a creative environment that encourages innovation and the development of cutting-edge optical technologies.
Conclusion
Eiji Otsuka's contributions to lens barrel technology exemplify his dedication to innovation in the optical field. His patents reflect a deep understanding of mechanical design and functionality, ensuring that his work will influence future advancements in optical devices.