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For the Inventor, By the Inventor

Tokyo, Japan

Hirofumi Tokunaga

This inventor holds 22 USPTO granted patents and 20 published patent applications and 1 EPO patent, primarily in Glass Technology. Top assignees: Agc Inc., Asahi Glass Company, Limited. Active years: 2016-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Tokunaga. Retrieved from https://idiyas.com/inventor/hirofumi-tokunaga

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

USPTO Granted Patents = 22 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.7

ph-index = 4

Forward Citations = 33(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2017 - 2021)
  • Tokyo, JP (2016 - 2024)

Company Filing History:

goldMedal15 out of 1,150 
 
Agc Inc.
 patents
silverMedal7 out of 2,560 
 
Asahi Glass Company, Limited
 patents

Years Active: 2016-2026

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Areas of Expertise:
Alkali-Free Glass
Glass Substrate
Black Matrix Substrate
Display Panel
Non-Alkali Glass
Manufacturing Method
Glass Plate
Substrate Production
22 patents (USPTO):Explore Patents
1. 12643815 - Alkali-free glass (2026-06-02),
2. 12540096 - Alkali-free glass (2026-02-03),
3. 12528737 - Glass substrate, black matrix substrate, and display panel (2026-01-20),
4. 12528731 - Alkali-free glass (2026-01-20),
5. 12448320 - Alkali-free glass (2025-10-21),
6. 12448319 - Alkali-free glass (2025-10-21),
7. 12122713 - Glass (2024-10-22),
8. 12071370 - Glass substrate, black matrix substrate, and display panel (2024-08-27),
9. 12017953 - Alkali-free glass (2024-06-25),
10. 11897812 - Alkali-free glass (2024-02-13),
11. 11414339 - Alkali-free glass (2022-08-16),
12. 11066325 - Alkali-free glass (2021-07-20),
13. 11053160 - Alkali-free glass (2021-07-06),
14. 10822264 - Alkali-free glass substrate and method for manufacturing alkali-free glass substrate (2020-11-03),
15. 10730786 - Alkali-free glass and method for producing the same (2020-08-04),

Title: The Innovative Journey of Hirofumi Tokunaga

Introduction: Hirofumi Tokunaga is a pioneering inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hirofumi Tokunaga holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hirofumi Tokunaga has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs. His innovative mindset and dedication to his work have earned him recognition as a trailblazer in the industry.

Collaborations: Throughout his career, Hirofumi Tokunaga has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing. His collaborative efforts have resulted in the development of cutting-edge technologies that have the potential to shape the future of various industries.

Conclusion: Hirofumi Tokunaga's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a respected inventor in the global tech community. His work continues to inspire future generations of inventors and innovators to push the boundaries of what is possible in the world of 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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