Katano, Japan

Mayumi Hironaka

This inventor holds 2 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1993-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mayumi Hironaka. Retrieved from https://idiyas.com/inventor/mayumi-hironaka

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 = 3.4

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1993-1997

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2 patents (USPTO):Explore Patents

Title: Mayumi Hironaka: Innovator in Optical Information Technology

Introduction

Mayumi Hironaka is a prominent inventor based in Katano, Japan. She has made significant contributions to the field of optical information technology, holding a total of 2 patents. Her work focuses on advancing the capabilities of optical information recording and reproducing apparatuses.

Latest Patents

Hironaka's latest patents include an "Optical information recording and reproducing apparatus with variable" and a "Phase locked loop clock changeover apparatus." The first patent describes an optical information recording and reproducing apparatus that features a reproduction signal processing circuit. This circuit includes elements with variable parameters that change states during data read-out from a recording medium. The second patent outlines a clock changeover apparatus that incorporates a reference frequency divider, a comparative frequency divider, and a phase comparator. This innovative design allows for precise control of clock signals to ensure synchronization.

Career Highlights

Hironaka is currently employed at Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. Her work at Matsushita has allowed her to explore and develop cutting-edge technologies in optical information systems.

Collaborations

Throughout her career, Hironaka has collaborated with notable colleagues, including Chikashi Inokuchi and Tadashige Furutani. These collaborations have contributed to her success and the advancement of her inventions.

Conclusion

Mayumi Hironaka's contributions to optical information technology demonstrate her innovative spirit and dedication to advancing the field. Her patents reflect her expertise and commitment to developing practical solutions 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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