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For the Inventor, By the Inventor

Nagano, Japan

Toshiaki Kakutani

This inventor holds 121 USPTO granted patents and 15 published patent applications and 2 EPO patents, primarily in Image Processing (CPC class H04N1-405). Top assignee: Seiko Epson Corporation. Active years: 1992-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiaki Kakutani. Retrieved from https://idiyas.com/inventor/toshiaki-kakutani

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

USPTO Granted Patents = 121 

% Patents Active = 49.6

 

Average Co-Inventor Count = 1.2

ph-index = 15

Forward Citations = 788(Granted Patents)

Forward Citations (Not Self Cited) = 711(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Shiejiri, JP (2011)
  • Shiojui, JP (2011)
  • Suwa, JP (1998 - 2013)
  • Nagano-ken, JP (2000 - 2013)
  • Shiojiri, JP (2010 - 2015)
  • Nagano, JP (1992 - 2022)

Company Filing History:

goldMedal121 out of 34,268 
 
Seiko Epson Corporation
 patents

Years Active: 1992-2022

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Areas of Expertise:
Image Processing
Printing Technology
Halftone Processing
Dither Mask
Bidirectional Printing
Printing Apparatus
Image Output System
Dot Data Generation
Print Density
Ejection Device
Printing Method
Control Program
121 patents (USPTO):Explore Patents
1. 11388312 - Image processing apparatus and image processing method (2022-07-12),
2. 10798266 - Image processing apparatus, printing apparatus, and image processing method for performing halftone processing on divided images (2020-10-06),
3. 10757297 - Image processing apparatus, image processing method, and printing apparatus (2020-08-25),
4. 10755152 - Image forming system, image forming device, and image forming method (2020-08-25),
5. 10462331 - Image processing method and apparatus, and printing apparatus, with dither result application level control (2019-10-29),
6. 10016978 - Printing apparatus, printing method, and non-transitory computer readable medium for storing program (2018-07-10),
7. 10005289 - Printing apparatus, printing method, and non-transitory computer readable medium for storing program (2018-06-26),
8. 9832350 - Image processing apparatus, printing apparatus, image processing method, and printing method (2017-11-28),
9. 9247104 - Printing apparatus, printing method, program, and image processing apparatus (2016-01-26),
10. 9202151 - Printing apparatus, control method thereof, control program thereof, and manufacturing method of printing material (2015-12-01),
11. 9148547 - Printing apparatus, printing method, and image processing apparatus (2015-09-29),
12. 9132632 - Printing device and printing method (2015-09-15),
13. 9117163 - Printing apparatus and method configured for re-halftone image data (2015-08-25),
14. 9036204 - Image processing device, display device and image processing method (2015-05-19),
15. 8928934 - Printing device, printing method and program thereof (2015-01-06),

Title: Toshiaki Kakutani: Innovator in Image Processing and Halftone Technologies

Introduction:

Toshiaki Kakutani is a prolific inventor known for his significant contributions to image processing and halftone technologies. With a remarkable portfolio of 121 patents, Kakutani has played a vital role in advancing the field of imaging. This article explores Kakutani's latest patents, career highlights, and notable collaborations, highlighting his achievements in the industry.

Latest Patents:

Kakutani's most recent patents revolve around image processing apparatus and image processing methods. In his patent titled "Image processing apparatus and image processing method," he introduces a technique where an original image is divided to enable efficient processing. This division allows for the application of the error diffusion method, effectively improving image quality during processing. Additionally, Kakutani's patent on "Image processing apparatus, printing apparatus, and image processing method for performing halftone processing on divided images" introduces a complex error diffusion method that ensures accurate dot formation in halftone processing.

Career Highlights:

Toshiaki Kakutani has spent a significant part of his career at Seiko Epson Corporation, a pioneering company in printer and imaging technologies. As an esteemed member of their research and development team, Kakutani has contributed extensively to advancing image processing techniques, ensuring high-quality prints and efficient image reproduction.

Collaborations:

Throughout his career, Kakutani has worked alongside esteemed professionals in the field. Two notable coworkers include Satoshi Yamazaki and Kazumichi Shimada. Their combined expertise has resulted in groundbreaking advancements and a collaborative approach to solving technical challenges. Such collective efforts have undoubtedly shaped the industry and paved the way for future breakthroughs.

Conclusion:

Toshiaki Kakutani's contributions in image processing and halftone technologies have played a vital role in the advancement of imaging and printing. Through his 121 patents, he has revolutionized image processing methods, ensuring enhanced image quality and efficient processing techniques. Collaborating with fellow experts in the field, Kakutani exemplifies the power of teamwork and its impact on technological innovation. His dedication and expertise continue to shape the industry, inspiring future inventors in their pursuit of excellence in imaging technologies.

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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