Tokyo, Japan

Hiroshi Mizusawa

This inventor holds 25 USPTO granted patents and 2 published patent applications and 2 EPO patents, primarily in Image Forming Technology. Top assignee: Ricoh Company, Ltd.. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Mizusawa. Retrieved from https://idiyas.com/inventor/hiroshi-mizusawa

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

USPTO Granted Patents = 25 

% Patents Active = 72.0

 

Average Co-Inventor Count = 3.4

ph-index = 10

Forward Citations = 349(Granted Patents)


Location History:

  • Oota-ku, JP (2007)
  • Ohta-ku, JP (2000 - 2016)
  • Tokyo, JP (2000 - 2019)

Company Filing History:


Years Active: 2000-2025

Loading Chart...
Loading Chart...
Areas of Expertise:
Image Forming Apparatus
Cleaning Device
Toner Conveyance
Process Cartridge
Protective Layer
Lubricant Applicator
Powder Conveying
Electrophotographic
Detachable Unit
Cleaning Blade
Transfer Unit
High Cleaning Performance
25 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hiroshi Mizusawa

Introduction

Hiroshi Mizusawa, based in Tokyo, Japan, is a distinguished inventor known for his significant contributions to the field of imaging technology. With a total of 24 patents to his name, Mizusawa's work has continually pushed the boundaries of innovation.

Latest Patents

Mizusawa's recent patents highlight his expertise in cleaning devices utilized in image forming apparatuses. One of his notable inventions is a cleaning blade that features an edge made from an elastic material with specific resilience and modulus values designed to enhance performance. Additionally, he developed a comprehensive cleaning device that includes a specialized cleaning blade, a rotator, and a toner collecting section, which consists of intricate components like a groove and a conveyor system that effectively manages toner collection. The vibratory action of the device, aided by carefully designed comb-tooth portions, represents a significant advancement in image forming technology.

Career Highlights

Mizusawa's career has been marked by his ongoing work with Ricoh Company, Ltd., where he has made a substantial impact on the company's product offerings through his innovative designs and patents. His deep understanding of mechanical engineering and material science has been pivotal in creating solutions that enhance the efficiency of imaging devices.

Collaborations

Throughout his career, Mizusawa has collaborated with talented individuals such as Ken Amemiya and Haruji Mizuishi. Their collective efforts have fostered an environment of innovation, leading to groundbreaking advancements in their field.

Conclusion

Hiroshi Mizusawa's commitment to innovation and research has solidified his reputation as a leading inventor in the imaging technology sector. His extensive patent portfolio and collaborative projects with esteemed colleagues demonstrate his dedication to advancing technology and improving user experiences in the image forming industry.

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]
Loading…