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For the Inventor, By the Inventor

Tokyo, Japan

Yukio Tokunaga

This inventor holds 15 USPTO granted patents and 1 published patent application. Top assignees: Mitsubishi Paper Mills Limited, Eiko Epson Corporation, Seiko Epson Corporation. Active years: 2002-2022.

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

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

USPTO Granted Patents = 15 

% Patents Active = 66.7

Average Co-Inventor Count = 2.6

ph-index = 4

Forward Citations = 57(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2003 - 2008)
  • Tokyo, JP (2002 - 2022)

Company Filing History:

goldMedal12 out of 622 
 
Mitsubishi Paper Mills Limited
 patents
silverMedal1 out of 4 
 
Eiko Epson Corporation
 patents
bronzeMedal1 out of 34,268 
 
Seiko Epson Corporation
 patents
4. 1 out of 615 
 
Sumitomo Bakelite Company Limited
 patents
5. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 2002-2022

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15 patents (USPTO):Explore Patents
1. 11510408 - Cryopreservation jig for cryopreserving cells or tissues (2022-11-29),
2. 10624335 - Tool for cryopreservation of cell or tissue and cryopreservation method (2020-04-21),
3. 9360747 - Transmission type screen (2016-06-07),
4. 7615266 - Ink jet recording material (2009-11-10),
5. 7541410 - Thermosetting resin composition, thermosetting resin molding compound and cured product thereof (2009-06-02),
6. 7326440 - Process for preparing an ink-jet recording material (2008-02-05),
7. 6919110 - Packaged product for ink-jet recording material, and recording method and recorded material using ink-jet recording material (2005-07-19),
8. 6899930 - Recording material for ink-jet (2005-05-31),
9. 6773771 - Ink-jet recording sheet (2004-08-10),
10. 6613416 - Ink-jet recording material (2003-09-02),
11. 6610389 - Ink-jet recording material, and recording method of ink-jet recording and recorded material using the same (2003-08-26),
12. 6607269 - Ink-jet recording material (2003-08-19),
13. 6589635 - Ink-jet recording material and ink-jet recording method (2003-07-08),
14. 6579598 - Ink-jet recording material (2003-06-17),
15. 6403162 - Silica dispersion, method for preparing the same and method for making ink-jet recording material using the same (2002-06-11),

Title: Yukio Tokunaga: Pioneering Inventor from Tokyo

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

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

Career Highlights: With a career spanning over two decades, Yukio 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, Yukio Tokunaga has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Yukio Tokunaga's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a trailblazer in the world of inventions.

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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