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For the Inventor, By the Inventor

Katsuta, Japan

Hajime Yokota

This inventor holds 8 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1982-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Yokota. Retrieved from https://idiyas.com/inventor/hajime-yokota

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 4

Forward Citations = 45(Granted Patents)


Company Filing History:

goldMedal8 out of 42,731 
 
Hitachi, Ltd.
 patents

Years Active: 1982-1992

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8 patents (USPTO):Explore Patents
1. 5115361 - Guide mechanism for positioning tape guides in a magnetic tape loading (1992-05-19),
2. 5101312 - Guide mechanism for optimizing the position of a tape take-out device in (1992-03-31),
3. 4866549 - Guide mechanism for optimizing the position of a tape take-out device in (1989-09-12),
4. 4809115 - Magnetic recording and reproducing apparatus (1989-02-28),
5. 4672197 - Photosensor employing optical guide posts to detect an object in the path (1987-06-09),
6. 4499512 - Reel drive system of magnetic recording and reproducing apparatus (1985-02-12),
7. 4437129 - Magnetic recording and reproducing apparatus enabling tape transport in (1984-03-13),
8. 4358797 - Electronic editing control apparatus for a video tape recorder (1982-11-09),

Title: Hajime Yokota: Innovator in Magnetic Tape Technology

Introduction

Hajime Yokota is a prominent inventor based in Katsuta, Japan. He has made significant contributions to the field of magnetic tape technology, holding a total of 8 patents. His work has been instrumental in advancing the efficiency and functionality of magnetic tape loading apparatuses.

Latest Patents

Yokota's latest patents include innovative mechanisms designed to enhance the performance of magnetic tape loading systems. One of his notable inventions is a guide mechanism for positioning tape guides in a magnetic tape loading apparatus. This invention features a rotatable cylindrical drum, tape guides, tape pulling movable members, and guide members that control the posture of the tape guide by adjusting its position and inclination. Another significant patent focuses on optimizing the position of a tape take-out device in a magnetic tape loading apparatus. This design includes a sliding magnetic tape take-out device and cam-type control means to maintain a predetermined positional relationship between the magnetic tape and a rotational cylinder during operation.

Career Highlights

Hajime Yokota is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop and refine his inventions, contributing to the company's reputation for excellence in engineering and technology.

Collaborations

Yokota has collaborated with notable colleagues, including Takao Terayama and Masashi Yoshida. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Hajime Yokota's contributions to magnetic tape technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in magnetic tape loading systems, showcasing the importance of innovation in technology.

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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