Company Filing History:
Years Active: 2017-2025
Title: The Innovative Contributions of Shinji Otsuka
Introduction
Shinji Otsuka is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of optical technology, particularly in the design and functionality of lens barrels and imaging devices. With a total of seven patents to his name, Otsuka's work has had a considerable impact on the industry.
Latest Patents
Otsuka's latest patents include a lens barrel designed to improve stop accuracy. This innovative lens barrel features a roller support shaft attached to the outer peripheral portion of a cam cylinder. A torque applying roller is rotatably supported by this roller support shaft, while a biasing ring is fitted to the outer peripheral portion of a second fixed cylinder and is held to be movable in an axial direction. The biasing ring is biased by a biasing spring and pressed against the torque applying roller. When the cam cylinder is rotated, the torque applying roller rolls along the biasing ring, generating a load torque due to the frictional force between the roller and the support shaft.
Another notable patent is for a lens barrel and imaging device that can fix a movable member to a stationary frame without the need for additional fixing components. This design includes a first motor that drives a third front lens group-holding frame using first magnets and a first coil. Additionally, a second motor drives a fourth lens group-movable holding frame with second coils and magnets. The innovative use of magnetic forces allows for the stabilization of the lens group-holding frame when current to the first coil is stopped.
Career Highlights
Shinji Otsuka has built a successful career at Fujifilm Corporation, where he has been instrumental in advancing optical technologies. His work has not only enhanced the functionality of imaging devices but has also contributed to the overall quality of photographic equipment. Otsuka's dedication to innovation is evident in his numerous patents and the practical applications of his inventions.
Collaborations
Throughout his career, Otsuka has collaborated with talented individuals such as Yuichi Kawanabe and Yukitaka Takeshita. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the field of optics.
Conclusion
Shinji Otsuka's contributions to the field of optical technology through his innovative patents and collaborations have significantly advanced the industry. His work continues to influence the
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