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For the Inventor, By the Inventor

Sayama, Japan

Kobun Yoshida

This inventor holds 9 USPTO granted patents. Top assignee: Teac Corporation. Active years: 1990-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kobun Yoshida. Retrieved from https://idiyas.com/inventor/kobun-yoshida

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 5

Forward Citations = 101(Granted Patents)


Company Filing History:

goldMedal9 out of 1,030 
 
Teac Corporation
 patents

Years Active: 1990-1994

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9 patents (USPTO):Explore Patents
1. 5315467 - Head actuator pivoting around stationary shaft and dish having such head (1994-05-24),
2. D343389 - Disk drive (1994-01-18),
3. 5237473 - Magnetic disk drive comprising a disk cartridge and a driving device (1993-08-17),
4. 5204794 - Magnetic disk drive comprising disk cartridge and driving device, which (1993-04-20),
5. 5148339 - Magnetic disk storage (1992-09-15),
6. 5140478 - Magnetic disk drive comprising magnetic disk cartridge and driving (1992-08-18),
7. 5113297 - Magnetic disk drive having a mechanism for preventing a disk cartridge (1992-05-12),
8. 4949204 - Tape recorder for playing endless magnetic tape (1990-08-14),
9. 4910618 - Guide structure for guiding endless magnetic tape in a rotary head (1990-03-20),

Title: Kobun Yoshida: Innovator in Head Actuator Technology

Introduction

Kobun Yoshida is a prominent inventor based in Sayama, Japan. He has made significant contributions to the field of technology, particularly in the development of head actuators. With a total of 9 patents to his name, Yoshida has established himself as a key figure in innovation.

Latest Patents

One of his latest patents is for a head actuator that pivots around a stationary shaft. This innovative design features a shaft fixed on a base, with a head supporting member that is pivotably supported around the shaft. The unique aspect of this actuator is that the shaft does not pivot with the head supporting member, eliminating the need for additional support members. This design allows for a thinner head actuator, which in turn enables disk storage devices to be more compact.

Career Highlights

Kobun Yoshida is currently employed at Teac Corporation, where he continues to push the boundaries of technology. His work has been instrumental in advancing the efficiency and design of disk drives, making them more user-friendly and space-efficient.

Collaborations

Throughout his career, Yoshida has collaborated with notable colleagues, including Kazuhiko Suzuki and Yoshiaki Sakai. These partnerships have fostered a creative environment that has led to groundbreaking innovations in their field.

Conclusion

Kobun Yoshida's contributions to head actuator technology exemplify his dedication to innovation. His patents reflect a commitment to improving technology and enhancing user experience. His work at Teac Corporation continues to influence the industry positively.

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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