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For the Inventor, By the Inventor

Suntou-gun, Japan

Yusuke Hasegawa

This inventor holds 53 USPTO granted patents and 1 published patent application and 11 EPO patents, primarily in Magnetic Toner (CPC class G03G). Top assignee: Canon Kabushiki Kaisha. Active years: 2003-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yusuke Hasegawa. Retrieved from https://idiyas.com/inventor/yusuke-hasegawa-ftw1wjwt

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

Calculating rank
USPTO Granted Patents = 53 

% Patents Active = 83.0

 

Average Co-Inventor Count = 4.7

ph-index = 28

Forward Citations = 1,500(Granted Patents)

Forward Citations (Not Self Cited) = 861(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Numazu, JP (2003 - 2004)
  • Ibaraki, JP (2003 - 2005)
  • Shizuoka, JP (2006 - 2007)
  • Shizuoka-ken, JP (2008)
  • Sunto-gun, JP (2009 - 2010)
  • Suntoh-gun, JP (2008 - 2011)
  • Suntou-gun, JP (2010 - 2020)

Company Filing History:

goldMedal53 out of 93,085 
 
Canon Kabushiki Kaisha
 patents

Years Active: 2003-2020

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Areas of Expertise:
Magnetic Toner
Toner Production
Image-Forming Method
Silica Fine Particles
Hydrophobic Inorganic Particles
Developing Apparatus
Toner Particle
Developing Method
Image Development
Toner Formulation
Fine Particle Technology
Electrostatic Properties
53 patents (USPTO):Explore Patents
1. 10877387 - Magnetic toner (2020-12-29),
2. 10859933 - Magnetic toner (2020-12-08),
3. 10698327 - Toner (2020-06-30),
4. 10545420 - Magnetic toner and image-forming method (2020-01-28),
5. 10310397 - Toner (2019-06-04),
6. 10228627 - Toner (2019-03-12),
7. 10012923 - Toner (2018-07-03),
8. 9971264 - Magnetic toner (2018-05-15),
9. 9971262 - Magnetic toner (2018-05-15),
10. 9964881 - Toner (2018-05-08),
11. 9964874 - Toner (2018-05-08),
12. 9946181 - Toner (2018-04-17),
13. 9946179 - Toner (2018-04-17),
14. 9927728 - Method for producing toner particle (2018-03-27),
15. 9841692 - Toner (2017-12-12),

Title: **Innovations by Yusuke Hasegawa: A Pioneer in Magnetic Toner Technology**

Introduction

Yusuke Hasegawa, based in Suntou-gun, Japan, is a notable inventor in the field of magnetic toner technology. With an impressive portfolio of 53 patents, Hasegawa has made significant contributions to the development of advanced materials that enhance printing technology. His innovative approaches have positioned him as a leader in his field.

Latest Patents

Hasegawa's latest patents focus on unique formulations for magnetic toners that include binder resins, magnetic bodies, and crystalline polyesters. One of his significant inventions outlines specific requirements for the storage elastic modulus of magnetic toner at varying temperatures, ensuring optimal performance in different conditions. The criteria for the storage elastic modulus at 40°C and 85°C are meticulously detailed, emphasizing the importance of these properties in the functionality of magnetic toners. Another patent describes the dielectric loss tangent and characteristics of the magnetic body, providing a comprehensive understanding of the materials used in toner particle design.

Career Highlights

Yusuke Hasegawa is currently employed by Canon Kabushiki Kaisha, a leading company known for its innovations in imaging and printing technology. His role at Canon has allowed him to leverage his expertise in developing products that meet the evolving needs of the market. Hasegawa's patents are a testament to his commitment to advancing toner technology and enhancing print quality.

Collaborations

Throughout his career, Hasegawa has collaborated with talented professionals such as Yoshitaka Suzumura and Tomohisa Sano. These collaborations have fostered a creative environment where innovative ideas can flourish, leading to groundbreaking advancements in their specialized fields.

Conclusion

Yusuke Hasegawa's contributions to magnetic toner technology through his extensive patent portfolio highlight his role as an innovative thinker in the industry. With his continuous efforts to improve materials and performance specifications, Hasegawa remains a key figure in the realm of printing technology. His work exemplifies the importance of innovation in enhancing everyday products and the impact of collaboration in driving technological advancements.

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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