Tokyo, Japan

Yasuhiro Kujirai

USPTO Granted Patents = 70 

 

Average Co-Inventor Count = 2.5

ph-index = 14

Forward Citations = 614(Granted Patents)

Forward Citations (Not Self Cited) = 537(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Maidenhead, GB (2009 - 2013)
  • Berkshire, GB (2009 - 2015)
  • Tokyo, JP (1998 - 2016)
  • Ohta-ku, JP (2005 - 2016)

Company Filing History:


Years Active: 1998-2016

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Areas of Expertise:
Image Processing Apparatus
Information Processing Apparatus
Printing Control Method
Document Management System
Color Correction
Data Processing Apparatus
Print Layout Device
Double-Sided Printing
Preview Image Display
Copy-Forgery Prevention
Job Management System
Density Correction
70 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Yasuhiro Kujirai in Image Processing

Introduction

Yasuhiro Kujirai, a prominent inventor based in Tokyo, Japan, holds an impressive portfolio with a remarkable 70 patents to his name. His contributions are particularly notable in the field of image processing, where he has developed systems and methods designed to enhance the authenticity and management of printed materials.

Latest Patents

Among Yasuhiro Kujirai's latest patents is an innovative image processing apparatus and method that performs a density adjustment process. This technology generates an image containing a copy-forgery-inhibited pattern. The apparatus aids users in easily adjusting the density of both the latent image portion and the background portion, thereby improving the efficacy of security features against unauthorized copying. The process involves a method of determining the density relationship through several adjustment operations, which sets the density data for each region in the pattern image.

Another significant patent covers a job management system linked to an image forming apparatus. This invention associates a paper brand identifier with a paper name, allowing for detailed tracking of paper usage across jobs. The system efficiently manages an association between identifiers and paper names, ensuring precise job history recording and effective resource management.

Career Highlights

Yasuhiro Kujirai is an esteemed employee of Canon Inc., known for its cutting-edge technology in imaging and printing solutions. His work encompasses both research and practical applications, further solidifying his reputation as an innovator in the industry.

Collaborations

In his innovative journey, Yasuhiro Kujirai collaborates with talented colleagues, including Tatsuro Uchida and Masanori Aritomi. Together, they contribute to advancements in imaging technologies that enhance both user experience and security in printed documents.

Conclusion

Yasuhiro Kujirai's extensive contributions to image processing highlight his role as a forward-thinking inventor. With a robust portfolio of patents and a commitment to innovation at Canon Inc., he continues to shape the future of imaging technology, ensuring a blend of functionality and security in everyday applications.

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