Kawasaki, Japan

Shuichi Tetsuno

This inventor holds 69 USPTO granted patents and 9 published patent applications and 6 EPO patents, primarily in Image Forming Technology. Top assignee: Canon Kabushiki Kaisha. Active years: 2013-2026.

USPTO Granted Patents = 69 

% Patents Active = 88.4

 

Average Co-Inventor Count = 4.0

ph-index = 4

Forward Citations = 69(Granted Patents)

Forward Citations (Not Self Cited) = 46(Dec 10, 2025)


Location History:

  • Numazu, JP (2013 - 2017)
  • Kawasaki, JP (2014 - 2022)
  • Kanagawa, JP (2022 - 2024)

Company Filing History:


Years Active: 2013-2026

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Areas of Expertise:
Image Forming Apparatus
Voltage Control
Toner Removal
Residual Toner
Image Defects
Brush Mechanism
Transfer Voltage
Photosensitive Member
Gradation Correction
Image Bearing Member
Dust Suppression
Primary Transferability
69 patents (USPTO):Explore Patents

Title: Innovations by Shuichi Tetsuno in Image Forming Technology

Introduction

Shuichi Tetsuno, a prolific inventor based in Kawasaki, Japan, has made significant contributions to the field of image forming technology, holding an impressive total of 46 patents. His work, particularly with Canon Kabushiki Kaisha, has focused on enhancing the efficiency and effectiveness of image formation processes.

Latest Patents

Among his latest innovations are two notable patents for image forming apparatuses. The first patent describes an image forming apparatus that comprises an image bearing member, a charging member, a developing roller, a transfer roller, and a brush. This brush is specifically designed to contact the surface of the image bearing member between the transfer and charging portions, effectively collecting developer residues post-transfer. The design ensures optimal overlap with the rotation axis of the image bearing member, enhancing image quality and operational efficiency.

The second patent also details an image forming apparatus featuring a rotatable image bearing member, a developing unit, and a transfer unit. This apparatus includes a brush comprised of several fibers, which come into contact with the image bearing member after the transfer process. Notably, the average contact pressure per fiber is carefully calibrated to be less than the depositing force of developer that remains on the image bearing member, ensuring effective removal of excess developer while protecting the image quality.

Career Highlights

Shuichi Tetsuno's career is marked by a commitment to innovation in image forming technologies. His extensive portfolio with Canon highlights his expertise and dedication to enhancing imaging processes. Not only has he developed advanced apparatuses, but he has also significantly impacted the productivity and reliability of printing and imaging solutions in the industry.

Collaborations

Throughout his career, Tetsuno has collaborated closely with fellow inventors such as Shinji Katagiri and Takayuki Tanaka. Together, they have worked on various projects that have further strengthened Canon's reputation for innovation in imaging technology. Their teamwork has culminated in patents that address specific challenges and improve overall output in image forming systems.

Conclusion

Shuichi Tetsuno continues to be a vital force in the field of image forming technology. His patented inventions underline his commitment to innovation and quality. As he advances in his career, the impact of his work will likely resonate in the future of imaging solutions, promoting greater efficiency and higher standards in the industry.

Profile summary based on public USPTO records.
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