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For the Inventor, By the Inventor

Ashigarakami, Japan

Hisao Kato

This inventor holds 9 USPTO granted patents and 1 published patent application and 4 EPO patents. Top assignees: Canon Kabushiki Kaisha, Canon Kasei Kabushiki Kaisha. Active years: 1999-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Kato. Retrieved from https://idiyas.com/inventor/hisao-kato-e2cyt8p4

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

USPTO Granted Patents = 9 

% Patents Active = 100.0


Average Co-Inventor Count = 6.0

ph-index = 6

Forward Citations = 133(Granted Patents)


Location History:

  • Ooi-machi, JP (1999)
  • Ashigarakami-gun, JP (2010 - 2011)
  • Ashigara-gun, JP (2011)
  • Kanagawa, JP (2005 - 2023)

Company Filing History:

goldMedal9 out of 92,994 
 
Canon Kabushiki Kaisha
 patents
silverMedal1 out of 35 
 
Canon Kasei Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 1999-2024

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9 patents (USPTO):Explore Patents
1. 12174576 - Cleaning member and elastic member (2024-12-24),
2. 11630411 - Electrophotographic cleaning blade, process cartridge, and electrophotographic image forming apparatus (2023-04-18),
3. 8064803 - Charging member, process cartridge, and electrophotographic apparatus (2011-11-22),
4. 7962068 - Charging member, process cartridge and electrophotographic apparatus (2011-06-14),
5. 7693457 - Charging member, process cartridge, and electrophotographic apparatus (2010-04-06),
6. 7664434 - Charging member, process cartridge and electrophotographic apparatus (2010-02-16),
7. 6962746 - Conductive member, and process cartridge and electrophotographic apparatus which make use of the same (2005-11-08),
8. 6951688 - Charging member, and image-forming apparatus and process cartridge which make use of the same (2005-10-04),
9. 5978636 - Developer amount restricting member and developing device (1999-11-02),

Title: Hisao Kato: Innovator in Electrophotographic Technology

Introduction

Hisao Kato is a notable inventor based in Ashigarakami-gun, Japan. He has made significant contributions to the field of electrophotographic technology, holding a total of 9 patents. His work primarily focuses on cleaning members and elastic members used in various imaging technologies.

Latest Patents

His latest patents include innovative designs for cleaning members and elastic members. One of his notable inventions is a cleaning member that comprises an elastic member made of polyurethane. This cleaning member is designed to perform effectively within a specific temperature range, ensuring optimal performance. Another significant patent involves an electrophotographic cleaning blade that boasts excellent chipping resistance and cleaning performance. This cleaning blade features an elastic member supported by a robust support member, allowing it to clean surfaces effectively.

Career Highlights

Throughout his career, Hisao Kato has worked with prominent companies such as Canon and Canon Kasei. His experience in these organizations has allowed him to develop and refine his innovative technologies, contributing to advancements in the field.

Collaborations

Hisao Kato has collaborated with notable colleagues, including Noriaki Kuroda and Jun Murata. These collaborations have further enhanced his work and led to the development of cutting-edge technologies in electrophotography.

Conclusion

Hisao Kato's contributions to the field of electrophotographic technology are significant and impactful. His innovative patents and collaborations with esteemed colleagues highlight his dedication to advancing technology in this area.

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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