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For the Inventor, By the Inventor

Shizuoka, Japan

Naohiro Watanabe

This inventor holds 62 USPTO granted patents and 1 published patent application, plus 3 CIPO patents and 4 EPO patents, primarily in Toner Development (CPC class G03G). Top assignees: Ricoh Company, Ltd., Jnc Corporation. Active years: 2004-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naohiro Watanabe. Retrieved from https://idiyas.com/inventor/naohiro-watanabe

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

USPTO Granted Patents = 62 

% Patents Active = 69.4



Average Co-Inventor Count = 6.0

ph-index = 14

Forward Citations = 586(Granted Patents)

Forward Citations (Not Self Cited) = 349(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Suntoh-gun, JP (2005 - 2009)
  • Suntou-gun, JP (2005 - 2011)
  • Sunto-gun, JP (2004 - 2012)
  • Shizuoka-ken, JP (2006 - 2013)
  • Shizuoka, JP (2006 - 2019)

Company Filing History:

goldMedal62 out of 28,940 
 
Ricoh Company, Ltd.
 patents
silverMedal1 out of 587 
 
Jnc Corporation
 patents
where one patent can have more than one assignee

Years Active: 2004-2019

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Areas of Expertise:
Toner
Developer
Image Forming Method
Process Cartridge
Toner Container
Electrostatic Image
Resin Particle
Production Method
Two-Component Developer
Cleaning Performance
Magenta Toner
Toner Manufacturing
62 patents (USPTO):Explore Patents
1. 10274853 - Toner, developer, toner housing unit and image forming apparatus (2019-04-30),
2. 9989869 - Toner, toner stored unit, and image forming apparatus (2018-06-05),
3. 9857709 - Toner and developer (2018-01-02),
4. 8999618 - Toner set, developer set, and image forming apparatus (2015-04-07),
5. 8932788 - Toner, developer, and image forming method (2015-01-13),
6. 8911924 - Toner and method for producing the same (2014-12-16),
7. 8835086 - Electrostatic image developing toner (2014-09-16),
8. 8758968 - Toner, production method thereof, developer and image forming method (2014-06-24),
9. 8741521 - Toner, developer, image forming method and image forming apparatus (2014-06-03),
10. 8673528 - Toner, developer, toner accommodating container, process cartridge and image forming method (2014-03-18),
11. 8557491 - Toner, developer, toner container, process cartridge, and image forming method (2013-10-15),
12. 8486596 - Toner, image forming method, and process cartridge (2013-07-16),
13. 8431304 - Toner and developer (2013-04-30),
14. 8293442 - Resin particle, toner, and image forming method and process cartridge using the same (2012-10-23),
15. 8178268 - Magenta toner and developer (2012-05-15),

Title: Naohiro Watanabe - Innovative Inventor from Shizuoka-ken, Japan

Introduction: Naohiro Watanabe is a highly skilled inventor hailing from Shizuoka-ken, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Naohiro Watanabe holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With over two decades of experience in the industry, Naohiro Watanabe has worked with leading tech companies and research institutions, consistently pushing the boundaries of what is possible in the world of technology.

Collaborations: Throughout his career, Naohiro Watanabe has collaborated with top engineers, scientists, and designers from around the globe, fostering a culture of creativity and innovation in all his projects.

Conclusion: Naohiro Watanabe's passion for innovation and his dedication to creating a better future through technology make him a true pioneer 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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