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For the Inventor, By the Inventor

Shizuoka, Japan

Kaori Hiratsuka

This inventor holds 12 USPTO granted patents and 3 EPO patents. Top assignee: Canon Kabushiki Kaisha. Active years: 2002-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kaori Hiratsuka. Retrieved from https://idiyas.com/inventor/kaori-hiratsuka

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

USPTO Granted Patents = 12

% Patents Active = 58.3

 

Average Co-Inventor Count = 4.6

ph-index = 7

Forward Citations = 105(Granted Patents)


Location History:

  • Shizuoka, JP (2004 - 2007)
  • Shizuoka-ken, JP (2002 - 2008)

Company Filing History:

goldMedal12 out of 93,085 
 
Canon Kabushiki Kaisha
 patents

Years Active: 2002-2008

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12 patents (USPTO):Explore Patents
1. 7402368 - Hydrophobic inorganic fine particles, hydrophobic inorganic fine particles production process, and toner (2008-07-22),
2. 7241547 - Toner, method for forming image using the toner, and process cartridge (2007-07-10),
3. 7238387 - Hydrophobic inorganic fine particles, hydrophobic inorganic fine particles production process, and toner (2007-07-03),
4. 7150953 - Developer (2006-12-19),
5. 7141343 - Toner, method for forming image using the toner, and process cartridge (2006-11-28),
6. 6879793 - Method for forming image (2005-04-12),
7. 6810217 - Process cartridge (2004-10-26),
8. 6673506 - Toner production process (2004-01-06),
9. 6630275 - Magnetic toner and process cartridge (2003-10-07),
10. 6589701 - Dry toner, image forming method and process cartridge (2003-07-08),
11. 6458499 - Toner having hydrocarbon wax with specific ester value and hydroxyl value (2002-10-01),
12. 6426169 - Toner containing azo iron compound (2002-07-30),

Title: Kaori Hiratsuka: Innovator in Hydrophobic Inorganic Fine Particles

Introduction

Kaori Hiratsuka is a prominent inventor based in Shizuoka, Japan. She has made significant contributions to the field of materials science, particularly in the development of hydrophobic inorganic fine particles. With a total of 12 patents to her name, her work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Hiratsuka's latest patents include groundbreaking technologies such as hydrophobic inorganic fine particles and their production processes. One of her notable inventions involves a mixture of small-particle-diameter inorganic fine particles, characterized by an average primary particle diameter of 5 to 25 nm, combined with large-particle-diameter inorganic fine particles. This innovative mixture undergoes simultaneous hydrophobic treatment, enhancing its properties for various applications. Additionally, she has developed a toner that exhibits excellent image characteristics and charging properties, even in cleaning-simultaneous-with-developing systems. The toner includes toner particles and non-magnetic metallic-compound fine particles, with a weight average particle diameter ranging from 3.0 µm to 12.0 µm.

Career Highlights

Hiratsuka is currently employed at Canon Kabushiki Kaisha, where she continues to push the boundaries of innovation in her field. Her work has not only advanced the technology behind hydrophobic materials but has also contributed to the efficiency and effectiveness of imaging systems.

Collaborations

Throughout her career, Hiratsuka has collaborated with esteemed colleagues such as Katsuhisa Yamazaki and Nobuyuki Okubo. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Kaori Hiratsuka stands out as a leading inventor in the realm of hydrophobic inorganic fine particles. Her contributions to the field, particularly through her patents and collaborations, highlight her commitment to innovation and excellence. Her work continues to influence advancements in materials science and imaging technology.

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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