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For the Inventor, By the Inventor

Tokyo, Japan

Hisashi Hanzawa

This inventor holds 9 USPTO granted patents. Top assignee: Sony Corporation. Active years: 1979-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Hanzawa. Retrieved from https://idiyas.com/inventor/hisashi-hanzawa

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 = 1.9

ph-index = 4

Forward Citations = 52(Granted Patents)


Company Filing History:

goldMedal9 out of 58,145 
 
Sony Corporation
 patents

Years Active: 1979-2003

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9 patents (USPTO):Explore Patents
1. 6592041 - Transfer apparatus and recording and/or reproduction method and transfer method and recording and/or reproduction method (2003-07-15),
2. 5953182 - Head moving and holding mechanism for reversible tape recorder (1999-09-14),
3. 5943182 - Magnetic recording and/or playback apparatus with reduced drive belt (1999-08-24),
4. 5764433 - Short-side-loading tape cassette recording and/or reproducing apparatus (1998-06-09),
5. 5621589 - Recording and/or reproducing apparatus (1997-04-15),
6. 5414573 - Cassette accommodating type electronic device having a plurality of (1995-05-09),
7. 4225894 - Mode change-over mechanism for recording and/or reproducing apparatus (1980-09-30),
8. 4178809 - Mode change-over device for recording and/or reproducing apparatus (1979-12-18),
9. 4147898 - Recording and/or reproducing apparatus mode control system (1979-04-03),

Title: Hisashi Hanzawa: Innovator in Recording Technology

Introduction

Hisashi Hanzawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of recording technology, holding a total of 9 patents. His work has been instrumental in advancing the functionality and reliability of various recording devices.

Latest Patents

Hanzawa's latest patents include innovative designs such as a transfer apparatus and a recording and/or reproduction method. The transfer apparatus is designed for transferring a storage medium and features a holder that moves between positions for loading and unloading. This design ensures a reliable connection between the storage medium and the apparatus. Another notable patent is for a head moving and holding mechanism for reversible tape recorders. This mechanism allows for efficient recording and playback of information signals on magnetic tape, enhancing the user experience.

Career Highlights

Hanzawa has spent a significant part of his career at Sony Corporation, where he has been able to apply his inventive skills to develop cutting-edge technologies. His work has not only contributed to the company's success but has also influenced the broader industry.

Collaborations

Throughout his career, Hanzawa has collaborated with talented individuals such as Hong-Seok Yang and Kozi Yoshino. These collaborations have fostered innovation and have led to the development of advanced technologies in the recording sector.

Conclusion

Hisashi Hanzawa's contributions to recording technology through his patents and work at Sony Corporation highlight his role as a key innovator in the field. His inventions continue to shape the future of recording devices and enhance user experiences.

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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