Nagano, Japan

Yasuyuki Nakahara

This inventor holds 1 USPTO granted patent. Top assignee: K.k. Sankyo Seiki Seisakusho. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuyuki Nakahara. Retrieved from https://idiyas.com/inventor/yasuyuki-nakahara

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: Yasuyuki Nakahara: Innovator in Magnetic Tape Technology

Introduction

Yasuyuki Nakahara is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of magnetic tape technology, particularly with his innovative designs that enhance the functionality of magnetic tape cassettes. His work has been recognized in the industry, showcasing his expertise and creativity.

Latest Patents

Nakahara holds a patent for a magnetic tape cassette ejecting device. This device features a holder carriage that holds a cassette, allowing it to be moved between a recording and reproducing position and a cassette insertion and removal position. The ejecting device includes an arm that swings with the displacement of the holder carriage, a reversing lever engaged with the swing arm, and a reversing spring interposed between the reversing lever and a swingable fulcrum lever. The fulcrum lever is integral with a cassette ejection arm, which operates to urge the ejection arm in a cassette removal direction when the holder carriage is at the cassette insertion and removal position. This innovative design improves the efficiency and ease of use of magnetic tape cassettes.

Career Highlights

Nakahara is currently employed at K.K. Sankyo Seiki Seisakusho, where he continues to develop and refine technologies related to magnetic tape. His work at this company has allowed him to collaborate with other talented professionals in the field, further enhancing his contributions to the industry.

Collaborations

One of Nakahara's notable coworkers is Masaru Uno. Their collaboration has likely fostered an environment of innovation and creativity, leading to advancements in their respective projects.

Conclusion

Yasuyuki Nakahara's contributions to magnetic tape technology through his patented ejecting device demonstrate his innovative spirit and technical expertise. His work continues to influence the industry, showcasing the importance of creativity in technological advancements.

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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