Kagoshima, Japan

Shinji Hirakawa

This inventor holds 7 USPTO granted patents. Top assignees: Panasonic Corporation, Nec Corporation, Pioneer Corporation. Active years: 2000-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinji Hirakawa. Retrieved from https://idiyas.com/inventor/shinji-hirakawa

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

Calculating rank

% Patents Active = 71.4

Average Co-Inventor Count = 2.8

ph-index = 2

Forward Citations = 22(Granted Patents)


Location History:

  • Izumi, JP (2009)
  • Tokyo, JP (2000 - 2010)
  • Kagoshima Prefecture, JP (2008 - 2012)

Company Filing History:


Years Active: 2000-2012

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7 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Shinji Hirakawa

Introduction

Shinji Hirakawa is a notable inventor based in Kagoshima Prefecture, Japan. He has made significant contributions to the field of display technology, particularly in plasma display panels. With a total of 7 patents to his name, Hirakawa's work has had a lasting impact on the industry.

Latest Patents

Hirakawa's latest patents include a method, circuit, and program for driving plasma display panels. This method involves dividing one field corresponding to an image into multiple sub-fields, with specific steps for forming wall charges and generating light emissions for display. Another notable patent is for a plasma display device that maintains excellent and stable display quality, even when the discharge start voltage varies. This innovation ensures that the charge state in display cells remains constant, contributing to improved display performance.

Career Highlights

Throughout his career, Hirakawa has worked with prominent companies such as Panasonic Corporation and NEC Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in display technology.

Collaborations

Hirakawa has collaborated with esteemed colleagues, including Mitsuhiro Ishizuka and Hajime Homma. These partnerships have fostered a creative environment that has led to innovative solutions in the field.

Conclusion

Shinji Hirakawa's contributions to plasma display technology are noteworthy and demonstrate his commitment to innovation. His patents and collaborations reflect a dedication to advancing the industry and improving display quality.

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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