Kawasaki, Japan

Masahiro Watanabe

This inventor holds 69 USPTO granted patents and 16 published patent applications and 16 EPO patents, primarily in Electrophotographic Technology (CPC class G06T). Top assignees: Fujitsu Corporation, The University of Tokyo, Canon Kabushiki Kaisha. Active years: 1995-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Watanabe. Retrieved from https://idiyas.com/inventor/masahiro-watanabe-o96a4o2r

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

Calculating rank
USPTO Granted Patents = 69 

% Patents Active = 63.8

 

Average Co-Inventor Count = 2.7

ph-index = 13

Forward Citations = 561(Granted Patents)

Forward Citations (Not Self Cited) = 512(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kawsaki, JP (2016)
  • Mishima, JP (2010 - 2018)
  • Kawasaki, JP (1995 - 2023)
  • Shizuoka, JP (2023)

Company Filing History:


Years Active: 1995-2026

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Areas of Expertise:
Electrophotographic Apparatus
Visualization Methods
Shape Data Generation
Image Forming
Biological Simulation
Process Cartridge
Rendering Techniques
Display Processing
Electroconductive Members
Wireless Communication
Simulation Results
Myocardial Infarct Visualization
69 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masahiro Watanabe in Electrophotography

Introduction

Masahiro Watanabe, a prominent inventor based in Kawasaki, Japan, has made significant strides in the field of electrophotography. With an impressive portfolio of 67 patents, Watanabe continues to push the boundaries of innovation and technology. His work focuses on improving the efficiency and effectiveness of electrophotographic systems through thoughtful designs and materials.

Latest Patents

Among his recent patents are three notable inventions that showcase his expertise and inventive spirit:

1. **Electrophotographic Cleaning Blade**: This invention aims to provide a cleaning blade that boasts exceptional chipping resistance and superior cleaning performance. It features an elastic member made of polyurethane, supported by a robust support member. The blade operates by bringing a section of the elastic member into contact with the surface of a moving object, ensuring efficient cleaning. The elastic modulus of the member measures between 15 MPa and 470 MPa, with a variance of no more than 6.0%.

2. **Process Cartridge**: Complementing his cleaning blade innovation, this process cartridge is intrinsic to the efficient operation of electrophotographic systems, facilitating improved image formation processes.

3. **Electrophotographic Image Forming Apparatus**: This apparatus is engineered to integrate seamlessly with the cleaning blade and process cartridge, creating an optimized workflow for generating high-quality images through electrophotography.

Career Highlights

Watanabe has had a distinguished career, with key positions at leading organizations. He has contributed his innovative insights while working at Fujitsu Corporation and The University of Tokyo, which are both renowned for their advancements in technology and research. His deep understanding of material sciences and engineering principles has played a vital role in his successful patent applications.

Collaborations

Throughout his career, Watanabe has collaborated with notable peers, including Toshiaki Hisada and Seiryo Sugiura. These partnerships have enhanced his research endeavors and have resulted in groundbreaking advancements in electrophotographic technologies.

Conclusion

Masahiro Watanabe’s contributions to innovation in the field of electrophotography underscore his status as a leading inventor. Through his latest patents and collaborations, he continues to revolutionize the industry, setting new standards for performance and efficiency. As technology evolves, Watanabe’s work will undoubtedly influence the future of electrophotographic systems and broader fields of innovation.

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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