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For the Inventor, By the Inventor

Kanagawa, Japan

Naohiro Kikkawa

This inventor holds 56 USPTO granted patents and 1 published patent application and 11 EPO patents, primarily in Image Forming Systems (CPC class B65H). Top assignee: Ricoh Company, Ltd.. Active years: 2005-2015.

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

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

USPTO Granted Patents = 56 

% Patents Active = 32.1

 

Average Co-Inventor Count = 8.3

ph-index = 9

Forward Citations = 355(Granted Patents)

Forward Citations (Not Self Cited) = 321(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JP (2005 - 2010)
  • Kanagawa pref, JP (2010)
  • Kawasaki, JP (2010 - 2012)
  • Kanagawa, JP (2010 - 2015)

Company Filing History:

goldMedal56 out of 28,940 
 
Ricoh Company, Ltd.
 patents

Years Active: 2005-2015

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Areas of Expertise:
Sheet Creaser
Sheet Finisher
Image Forming Apparatus
Creasing Device
Bookbinding System
Spine Formation Device
Sheet Processing
Paper Transport Device
Conveying Device
Post-Processing Apparatus
Finishing Device
Punching Device
56 patents (USPTO):Explore Patents
1. 9102116 - Sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program product (2015-08-11),
2. 8528891 - Creasing device and image forming system (2013-09-10),
3. 8490957 - Creasing apparatus and image forming system (2013-07-23),
4. 8480069 - Sheet processing apparatus and image forming system (2013-07-09),
5. 8474807 - Conveying device, spine forming device, and image forming system (2013-07-02),
6. 8465012 - Creasing device and image forming system (2013-06-18),
7. 8424859 - Creasing apparatus and image forming system (2013-04-23),
8. 8419003 - Creasing device and image forming system (2013-04-16),
9. 8413976 - Image forming system, sheet finisher, and folding method (2013-04-09),
10. 8413974 - Creasing device and image forming system (2013-04-09),
11. 8387964 - Creasing device and image forming system (2013-03-05),
12. 8333371 - Creasing device and image forming system (2012-12-18),
13. 8322701 - Image forming apparatus (2012-12-04),
14. 8313098 - Paper transport device, paper processing apparatus, and image forming apparatus with paper-jamming detection unit (2012-11-20),
15. 8286958 - Spine formation device, post-processing apparatus, spine formation system, and spine formation method (2012-10-16),

Title: Innovations by Naohiro Kikkawa: Pioneering Creasing Technologies

Introduction

Naohiro Kikkawa, a prominent inventor based in Kanagawa, Japan, has made significant contributions to the field of imaging and printing technologies. With a remarkable total of 56 patents to his name, Kikkawa has been at the forefront of developing innovative solutions, particularly in sheet finishing and creasing mechanisms.

Latest Patents

Among his latest innovations are several cutting-edge patents, including the sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program product. Notably, his patented sheet creaser features a unique mechanism where a sheet set is pushed between folding rollers to create folds. A re-pressing roller then follows, reapplying pressure to enhance the creased image, which optimizes the overall quality of the printed material. Another significant patent involves a creasing device that includes a creasing blade and multiple creasing channels, allowing for efficient and accurate sheet handling during the printing process.

Career Highlights

Naohiro Kikkawa is currently associated with Ricoh Company, Ltd., a leading player in the imaging and electronics sector. His work at Ricoh has allowed him to explore various facets of printing technology, contributing to advancements that improve both efficiency and quality in the production of printed materials.

Collaborations

In his journey as an inventor, Kikkawa has collaborated with talented coworkers, including Shuuya Nagasako and Nobuyoshi Suzuki. Together, they have worked on developing innovative technologies that push the boundaries of traditional printing methods, paving the way for new applications in the industry.

Conclusion

With his extensive background and innovative mindset, Naohiro Kikkawa continues to be a pivotal figure in the realm of imaging technology. His contributions not only advance the capabilities of Ricoh Company but also inspire future inventors to pursue advancements in the industry. The innovations stemming from Kikkawa’s ingenuity exemplify the transformative power of inventive thinking in shaping the future of printing and imaging technologies.

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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