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For the Inventor, By the Inventor

Fujisawa, Japan

Hiroyuki Tokunaga

This inventor holds 40 USPTO granted patents and 1 EPO patent, primarily in Semiconductor Technology. Top assignees: Canon Kabushiki Kaisha, Canon Anelva Corporation. Active years: 1991-2026.

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

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

USPTO Granted Patents = 40

% Patents Active = 90.0


Average Co-Inventor Count = 2.1

ph-index = 11

Forward Citations = 362(Granted Patents)


Location History:

  • Kawasaki, JP (1991 - 1998)
  • Kanagawa, JP (2005 - 2009)
  • Fujisawa, JP (1995 - 2021)

Company Filing History:

goldMedal40 out of 92,994 
 
Canon Kabushiki Kaisha
 patents
silverMedal2 out of 363 
 
Canon Anelva Corporation
 patents
where one patent can have more than one assignee

Years Active: 1991-2026

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Areas of Expertise:
Semiconductor Device
Liquid Crystal Device
Inkjet Head
Electrode Plate
Crystal Formation
III-V Compound
Light Emitting Device
Hybrid Substrate
Silicon Carbide Film
Polycrystalline Structure
Crystalline Compound
Selective Epitaxial Growth
40 patents (USPTO):Explore Patents
1. 12558671 - Structure and method of manufacturing the same (2026-02-24),
2. 11103852 - Structure and method of manufacturing the same (2021-08-31),
3. 7963640 - Liquid discharge head and method for manufacturing the liquid discharge head (2011-06-21),
4. 7799370 - Method of forming through hole and method of manufacturing electronic circuit (2010-09-21),
5. 7634855 - Method for producing ink jet recording head (2009-12-22),
6. 7503114 - Method for producing ink jet head (2009-03-17),
7. 7497962 - Method of manufacturing liquid discharge head and method of manufacturing substrate for liquid discharge head (2009-03-03),
8. 7207109 - Method for producing ink jet head (2007-04-24),
9. 6908563 - Ink-jet head, and method for manufacturing the same (2005-06-21),
10. 6388728 - Electrode plate, process for producing the plate, liquid crystal device including same and process for producing the device (2002-05-14),
11. 6252641 - Liquid crystal device and liquid crystal apparatus (2001-06-26),
12. 6219125 - Electrode plate, process for producing the plate, for an LCD having a laminated electrode with a metal nitride layer (2001-04-17),
13. 6154265 - Liquid crystal device and production process thereof (2000-11-28),
14. 6151085 - Electrode plate, process for producing the plate, liquid crystal device (2000-11-21),
15. 6078377 - Electrode plate, process for producing the plate, liquid crystal device (2000-06-20),

Title: The Innovative Journey of Hiroyuki Tokunaga

Introduction: Hiroyuki Tokunaga is a renowned inventor hailing from Fujisawa, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroyuki Tokunaga holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Tokunaga has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in various industries.

Collaborations: Throughout his career, Hiroyuki Tokunaga has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Hiroyuki Tokunaga's passion for pushing the boundaries of technology and his relentless pursuit of innovation have solidified his reputation as a visionary inventor in the global tech community.

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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