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For the Inventor, By the Inventor

Nara, Japan

Tatsuo Imafuku

This inventor holds 10 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 2000-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Imafuku. Retrieved from https://idiyas.com/inventor/tatsuo-imafuku

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

USPTO Granted Patents = 10

% Patents Active = 80.0

Average Co-Inventor Count = 4.7

ph-index = 2

Forward Citations = 18(Granted Patents)


Company Filing History:

goldMedal10 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents

Years Active: 2000-2015

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10 patents (USPTO):Explore Patents
1. 9040217 - Carrier, two-component developer using the same, and image-forming apparatus using said developer (2015-05-26),
2. 8043781 - Toner, two-component developer and image formation device (2011-10-25),
3. 7514193 - Developing toner for electrostatic latent images, imaging forming method and image forming apparatus (2009-04-07),
4. 7449274 - Toner for electrostatic image development and image forming method using the same (2008-11-11),
5. 7070897 - Developer for use in electrophotography and method and apparatus for image formation (2006-07-04),
6. 6864031 - Electrophotographic developer and image-forming method using the developer (2005-03-08),
7. 6420079 - Electrophotographic toner and electrophotographic apparatus (2002-07-16),
8. 6110635 - Toner for electrophotography and a production method thereof (2000-08-29),
9. 6103439 - Toner used for electrophotography (2000-08-15),
10. 6066423 - Toner for electrophotography (2000-05-23),

Title: Innovations of Tatsuo Imafuku: A Pioneer in Electrophotographic Development

Introduction

Tatsuo Imafuku, a notable inventor from Nara, Japan, has made significant contributions to the field of electrophotography. With an impressive portfolio of 10 patents, Imafuku has showcased his inventive prowess, particularly in the development of advanced imaging technologies and materials.

Latest Patents

Imafuku's recent innovations include patents for a carrier used in a two-component electrophotographic developer and an image-forming apparatus utilizing this developer. The first patent presents a carrier comprising a core particle coated with a thermoset silicone resin layer. This layer contains a charge control agent and is heat-treated at a temperature below the melting point of the charge control agent. His second patent focuses on a toner formulation that integrates both small and large particle diameter external additives, optimized for improved performance in electrophotographic applications.

Career Highlights

Imafuku is affiliated with Sharp Kabushiki Kaisha Corporation, a leader in imaging technology. His work has significantly impacted the efficiency and quality of electrophotographic printers, helping to enhance image clarity and consistency. Throughout his career, he has demonstrated a commitment to innovation, continually pushing the boundaries of technology in his field.

Collaborations

As a part of his innovative journey, Imafuku collaborates with talented individuals such as Takahiro Bito and Takeshi Satoh. These partnerships contribute to his ongoing research and development efforts, fostering a creative environment where groundbreaking ideas can flourish.

Conclusion

Tatsuo Imafuku's work exemplifies the spirit of innovation in the technology sector. With his ten patents, he not only enhances the capabilities of electrophotography but also inspires future inventors in the industry. His dedication to improving imaging technologies assures that his contributions will be felt for years to come.

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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