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For the Inventor, By the Inventor

Kanagawa, Japan

Masanori Kawasumi

This inventor holds 53 USPTO granted patents and 1 published patent application and 9 EPO patents, primarily in Image Forming Technology (CPC class G03G). Top assignee: Ricoh Company, Ltd.. Active years: 2004-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Kawasumi. Retrieved from https://idiyas.com/inventor/masanori-kawasumi

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

Calculating rank
USPTO Granted Patents = 53 

% Patents Active = 56.6

 

Average Co-Inventor Count = 10.4

ph-index = 16

Forward Citations = 927(Granted Patents)

Forward Citations (Not Self Cited) = 873(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa-ken, JP (2006)
  • Tokyo, JP (2004 - 2007)
  • Yokohama, JP (2006 - 2013)
  • Kanagawa, JP (2006 - 2020)

Company Filing History:

goldMedal53 out of 28,957 
 
Ricoh Company, Ltd.
 patents

Years Active: 2004-2020

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Areas of Expertise:
Image Forming Apparatus
Color Toner
Electrophotographic
Charging Device
Developer Container
Process Cartridge
Cleaning Device
Toner Supply
Lubricant Application
Transfer Device
Conductive Member
Imaging Apparatus
53 patents (USPTO):Explore Patents
1. 10732542 - Image forming apparatus for increase of color toner in a color toner image in a special operation (2020-08-04),
2. 8483598 - Electrophotographic image forming method and apparatus with a cover film supplying device (2013-07-09),
3. 8433216 - Image forming apparatus (2013-04-30),
4. 8428488 - Charging device, process cartridge, image forming apparatus, and toner (2013-04-23),
5. 8422897 - Image forming apparatus (2013-04-16),
6. 8385793 - Image forming apparatus preventing gaps between a conveyor belt and transfer sheet (2013-02-26),
7. 8195070 - Developer container, developer supplying device, and image forming apparatus (2012-06-05),
8. 8005406 - Developer container, developer supplying device, and image forming apparatus (2011-08-23),
9. 8000627 - Charging device, process cartridge, image forming apparatus, and toner (2011-08-16),
10. 7925188 - Development device, process cartridge, and image forming apparatus using the development device (2011-04-12),
11. 7835673 - Developer container, developer supplying device, and image forming apparatus (2010-11-16),
12. 7826786 - Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner (2010-11-02),
13. 7697870 - Developer container, developer supplying device, and image forming apparatus (2010-04-13),
14. 7680429 - Charging device including charging roller and cleaning roller (2010-03-16),
15. 7672635 - Method and apparatus for image forming and effectively applying lubricant to an image bearing member (2010-03-02),

Title: Inventor Masanori Kawasumi

Introduction: Masanori Kawasumi is a renowned inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Masanori Kawasumi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative mindset and forward-thinking approach.

Career Highlights: With a career spanning over two decades, Masanori Kawasumi has worked with leading research institutions and tech companies, developing cutting-edge solutions that have revolutionized the industry.

Collaborations: Throughout his career, Masanori Kawasumi has collaborated with top engineers, scientists, and inventors from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Masanori Kawasumi's passion for innovation and his relentless pursuit of technological advancement continue to inspire the next generation of inventors and shape the future 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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