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For the Inventor, By the Inventor

Kanagawa, Japan

Nobukazu Hirai

This inventor holds 12 USPTO granted patents and 10 published patent applications and 6 EPO patents. Top assignees: Sony Corporation, Sony Group Corporation. Active years: 2012-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobukazu Hirai. Retrieved from https://idiyas.com/inventor/nobukazu-hirai

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

USPTO Granted Patents = 12 

% Patents Active = 83.3

 

Average Co-Inventor Count = 2.7

ph-index = 3

Forward Citations = 15(Granted Patents)


Location History:

  • Kanagawa, JP (2012 - 2024)
  • Tokyo, JP (2022 - 2024)

Company Filing History:

goldMedal11 out of 58,145 
 
Sony Corporation
 patents
silverMedal1 out of 4,241 
 
Sony Group Corporation
 patents

Years Active: 2012-2024

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12 patents (USPTO):Explore Patents
1. 11993094 - Reversible recording medium and exterior member (2024-05-28),
2. 11865853 - Thermosensitive recording medium and exterior member (2024-01-09),
3. 11823004 - Information medium, recording apparatus, and reading apparatus (2023-11-21),
4. 11667142 - Reversible recording medium and exterior member (2023-06-06),
5. 11386588 - Product design system and design image correction apparatus (2022-07-12),
6. 11364727 - Drawing and erasing apparatus and erasing method (2022-06-21),
7. 11228686 - Request processing apparatus and request accepting apparatus (2022-01-18),
8. 11104109 - Reversible recording medium and exterior member (2021-08-31),
9. 10919329 - Optical apparatus, rendering and erasing apparatus, and irradiation method (2021-02-16),
10. 10836183 - Recording device and recording system (2020-11-17),
11. 8624290 - Display device and method for manufacturing the same (2014-01-07),
12. 8242501 - Thin film transistor and electronic apparatus (2012-08-14),

Title: Nobukazu Hirai: Innovator in Recording Medium Technologies

Introduction

Nobukazu Hirai is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of recording mediums, holding a total of 12 patents. His innovative work has paved the way for advancements in thermosensitive and reversible recording technologies.

Latest Patents

Hirai's latest patents include a reversible recording medium and a thermosensitive recording medium. The reversible recording medium features a recording layer that includes a leuco pigment as a coloring compound, along with a first barrier film that suppresses the mixing of water or oxygen. The thermosensitive recording medium comprises a recording layer with a coloring compound that has electron-donating properties, a developer with electron-accepting properties, a photothermal conversion agent, and a polymer material. Additionally, it includes a protective member that has a convexo-concave shape in a plane.

Career Highlights

Throughout his career, Nobukazu Hirai has worked with notable companies such as Sony Corporation and Sony Group Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in recording technologies.

Collaborations

Hirai has collaborated with talented individuals in his field, including Kenichi Kurihara and Yuki Oishi. These collaborations have contributed to the success of his projects and the advancement of recording medium technologies.

Conclusion

Nobukazu Hirai's contributions to the field of recording mediums demonstrate his innovative spirit and dedication to technological advancement. His patents and collaborations reflect his commitment to pushing the boundaries of what is possible in this area.

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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