logo

For the Inventor, By the Inventor

Chiba, Japan

Toru Ishigaki

This inventor holds 5 USPTO granted patents. Top assignees: Canon Kasei Kabushiki Kaisha, Canon Kabushiki Kaisha. Active years: 1997-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toru Ishigaki. Retrieved from https://idiyas.com/inventor/toru-ishigaki-ywwc6u01

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 60.0

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 26(Granted Patents)


Location History:

  • Ibaraki-ken, JP (1997 - 1998)
  • Chiba, JP (2006)
  • Matsudo, JP (2012)

Company Filing History:

goldMedal3 out of 35 
 
Canon Kasei Kabushiki Kaisha
 patents
silverMedal2 out of 93,136 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1997-2012

Loading Chart...
5 patents (USPTO):Explore Patents
1. 8095050 - Developer level control blade and process for manufacturing developer level control blade (2012-01-10),
2. 7074292 - Processes for manufacturing blade member of developer quantity control blade (2006-07-11),
3. 7016633 - Developing assembly featuring a developer-carrying member having specified ranges of deformation and hardness and a developer quality control blade having a rough contact surface (2006-03-21),
4. 5768670 - Developer regulating member having thermoplastic resin layers provided (1998-06-16),
5. 5689783 - Elastic blade and developing device using the same (1997-11-18),

Title: The Innovations of Toru Ishigaki

Introduction

Toru Ishigaki is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of developer technology, particularly in the manufacturing of developer level control blades. With a total of five patents to his name, Ishigaki's work has had a considerable impact on the industry.

Latest Patents

Ishigaki's latest patents include the "Developer Level Control Blade and Process for Manufacturing Developer Level Control Blade." This invention provides a solution for forming a developer layer on a developer carrying member with proper thickness and uniformity. It effectively prevents color toner particles from melt-adhering to the charge control face, thereby reducing faulty images such as lines and non-uniformity. The manufacturing process involves extruding a melted blade member material, covering it with a thin-plate metal support member, and cooling it to solidify before cutting it to a preset length. Another significant patent is the "Processes for Manufacturing Blade Member of Developer Quantity Control Blade," which describes a mold-free method for creating a blade member that ensures uniform thickness and solidification.

Career Highlights

Throughout his career, Toru Ishigaki has worked with prominent companies such as Canon Kasei Kabushiki Kaisha and Canon Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the field of developer technology.

Collaborations

Ishigaki has collaborated with notable coworkers, including Hiroshi Sasame and Tetsuya Kobayashi. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Toru Ishigaki's contributions to the field of developer technology are significant and impactful. His innovative patents and collaborations with industry leaders highlight his dedication to advancing technology in this area. His work continues to influence the industry and pave the way for future innovations.

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…