Kanagawa, Japan

Kenichi Hasegawa

This inventor holds 73 USPTO granted patents, plus 1 CIPO patent and 2 EPO patents, primarily in Image Forming Apparatus (CPC class G03G). Top assignees: Ricoh Company, Ltd., Fujitsu Corporation. Active years: 1993-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenichi Hasegawa. Retrieved from https://idiyas.com/inventor/kenichi-hasegawa

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


% Patents Active = 47.9



Average Co-Inventor Count = 2.8

ph-index = 11

Forward Citations = 521(Granted Patents)

Forward Citations (Not Self Cited) = 289(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Inagi, JP (1993 - 1996)
  • Yokohama, JP (1995 - 2005)
  • Kawasaki, JP (2000 - 2013)
  • Kanagawa-ken, JP (2013 - 2014)
  • Kuki, JP (2015)
  • Atsugi, JP (2011 - 2016)
  • Kanagawa, JP (2006 - 2021)

Company Filing History:


Years Active: 1993-2021

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Areas of Expertise:
Image Forming Apparatus
Fixing Device
Sheet Separation
Heat Conduction Unit
Pressure Relief Device
Transmission Apparatus
Media Separator
Rotational Load Applicator
Temperature Detector
Air Nozzle
Guiding Unit Mechanism
Reinforcing Member
73 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Kenichi Hasegawa in Heating Technologies

Introduction: Kenichi Hasegawa, an accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of heating technologies, amassing an impressive total of 73 patents throughout his career. His inventive spirit and expertise in engineering have led to innovative designs that enhance efficiency and functionality in various applications.

Latest Patents: Among Kenichi Hasegawa's recent patents are a heater, a heating device, a fixing device, and an image forming apparatus. The heater is designed with a unique structure that includes a base layer and a heat generator, complemented by a slide layer made of fluorine-containing material. This enables smooth sliding interaction between components, as the surface roughness is specifically engineered to improve performance. His fixing device and image forming apparatus feature an endless belt configuration that integrates a lubricant applicator, ensuring optimal operation with reduced friction and wear.

Career Highlights: Kenichi Hasegawa's professional journey includes working for prominent companies such as Ricoh Company, Ltd. and Fujitsu Corporation. His tenure at these organizations has allowed him to explore and innovate within various technological areas, further establishing his reputation as a leading inventor in the heating technology sector.

Collaborations: Hasegawa has collaborated with esteemed colleagues, including Akira Shinshi and Hiroshi Yoshinaga. These partnerships have fostered a creative environment that encourages the sharing of ideas and techniques, resulting in numerous advancements in their respective fields.

Conclusion: The work of Kenichi Hasegawa exemplifies the power of innovation in shaping modern heating solutions. With his extensive patent portfolio and collaborations with industry leaders, Hasegawa continues to influence the technological landscape, ensuring that his inventive legacy will be felt for years to come.

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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