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For the Inventor, By the Inventor

Kanagawa, Japan

Yoshio Hattori

This inventor holds 59 USPTO granted patents and 4 published patent applications and 3 EPO patents, primarily in Image Forming Technology (CPC class G03G). Top assignee: Ricoh Company, Ltd.. Active years: 2002-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Hattori. Retrieved from https://idiyas.com/inventor/yoshio-hattori

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

USPTO Granted Patents = 59 

% Patents Active = 64.4


Average Co-Inventor Count = 4.2

ph-index = 14

Forward Citations = 920(Granted Patents)

Forward Citations (Not Self Cited) = 755(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Ohta-ku, JP (2002 - 2003)
  • Tokyo, JP (2004)
  • Kanagawa-ken, JP (2008)
  • Kawasaki, JP (2003 - 2014)
  • Kanagawa, JP (2002 - 2022)

Company Filing History:

goldMedal59 out of 28,940 
 
Ricoh Company, Ltd.
 patents

Years Active: 2002-2022

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Areas of Expertise:
Image Forming Apparatus
Fixing Device
Developing Device
Process Cartridge
Toner Supply Unit
Cleaning Method
Lubricant Applicator
Developer Conveying System
Toner Replenishing Device
Pressure Relief Device
Operator Guidance System
59 patents (USPTO):Explore Patents
1. 11500314 - Image forming apparatus and cleaning method (2022-11-15),
2. 11256200 - Fixing device, heating device, and image forming device with a substrate covering member covering a relay substrate (2022-02-22),
3. 10852671 - Fixing device including a cleaner to clean a surface of a cleaning target and image forming apparatus incorporating same (2020-12-01),
4. 10663894 - Fixing device and image forming apparatus (2020-05-26),
5. 10054885 - Pressure and pressure relief device, fixing device, and image forming apparatus (2018-08-21),
6. 9989897 - Fixing device and image forming apparatus including fixing device with lubricant movement restrictors (2018-06-05),
7. 9811043 - Image forming apparatus (2017-11-07),
8. 9811029 - Fixing device and image forming apparatus including the same (2017-11-07),
9. 9753417 - Fixing device including outlet guide member and image forming apparatus thereof (2017-09-05),
10. 9696668 - Fixing device and image forming apparatus (2017-07-04),
11. 9581945 - Fixing exit guide plate, fixing device, and image forming apparatus (2017-02-28),
12. 9529308 - Image forming apparatus and image forming method (2016-12-27),
13. 9501006 - Fixing device, image forming apparatus, and fixing method (2016-11-22),
14. 9494901 - Fixing device and image forming apparatus with a rotatable light shield (2016-11-15),
15. 9329542 - Fixing device and image forming apparatus (2016-05-03),

Title: Yoshio Hattori: Pioneering Inventor from Kanagawa

Introduction: Yoshio Hattori is a renowned inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yoshio Hattori 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, Yoshio Hattori has worked with leading tech companies and research institutions, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Yoshio Hattori has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge-sharing that has led to numerous successful projects and inventions.

Conclusion: Yoshio Hattori's passion for innovation, coupled with his relentless drive to create a positive impact on society through his inventions, solidifies his position as a trailblazing inventor in the global technological landscape.

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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