Yokohama, Japan

Fumio Ogasawara

This inventor holds 2 USPTO granted patents. Top assignee: Victor Company of Japan, Limited. Active years: 1990-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumio Ogasawara. Retrieved from https://idiyas.com/inventor/fumio-ogasawara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1990-1998

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2 patents (USPTO):Explore Patents

Title: Fumio Ogasawara: Innovator in Optical Systems and Magnetic Disk Drives

Introduction

Fumio Ogasawara is a notable inventor based in Yokohama, Japan. He has made significant contributions to the fields of optical systems and magnetic disk drives. With a total of 2 patents, Ogasawara's work showcases his expertise and innovative spirit.

Latest Patents

Ogasawara's latest patents include a control apparatus for positional control of an optical system. This apparatus is designed to control the positions of a group of zoom lenses and focus lenses quickly and accurately, without being affected by the camera's attitude. It features actuators for mechanically driving the lenses, drive circuits for the actuators, and position detecting devices to monitor the current positions of the lenses. Additionally, it includes a target position calculating device, a positioning device, an evaluation device, and a correction device to ensure precise positioning.

Another significant patent is for a magnetic disk drive with effective AGC control of servo signals. This invention includes a computational control circuit that adjusts the reference level of the A/D converter. This ensures that the outputs of A/D conversion remain constant, based on the integrated output peak values of sector servo signals recorded on the magnetic disk.

Career Highlights

Fumio Ogasawara is associated with the Victor Company of Japan, Limited, where he has applied his innovative ideas to develop advanced technologies. His work has had a lasting impact on the industry, particularly in enhancing the performance of optical systems and magnetic disk drives.

Collaborations

Ogasawara has collaborated with notable coworkers such as Takayoshi Sasao and Satoru Yokoi. Their combined efforts have contributed to the successful development of various technologies in their field.

Conclusion

Fumio Ogasawara's contributions to innovation in optical systems and magnetic disk drives highlight his role as a significant inventor. His patents reflect a commitment to advancing technology and improving device performance.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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