Tokyo, Japan

Hiroshi Shirakura

This inventor holds 1 USPTO granted patent. Top assignee: Fuji Photo Film Company, Limited. Active years: 1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Shirakura. Retrieved from https://idiyas.com/inventor/hiroshi-shirakura-me8fd7wa

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1993

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1 patent (USPTO):Explore Patents

Title: Hiroshi Shirakura: Innovator in Image Processing Technology

Introduction

Hiroshi Shirakura is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of image processing, particularly in the development of technologies that enhance the efficiency of optical character recognition (OCR).

Latest Patents

Shirakura holds a patent for an "Image processing apparatus for determining rates of OCR for every color." This innovative apparatus is designed to determine the rate of under color removal (UCR) for each color by utilizing a function of each color signal. The apparatus includes devices that determine the maximum and minimum values of input signals and calculates the rates of UCR based on these values.

Career Highlights

Hiroshi Shirakura is associated with Fuji Photo Film Company, Limited, where he has been instrumental in advancing image processing technologies. His work has contributed to the development of more efficient imaging systems that are widely used in various applications.

Collaborations

Shirakura has collaborated with Seiichiro Morikawa, another expert in the field, to further enhance the capabilities of their image processing technologies.

Conclusion

Hiroshi Shirakura's contributions to image processing technology demonstrate his innovative spirit and commitment to advancing the field. His patent reflects a significant step forward in improving OCR efficiency, showcasing the importance of collaboration and innovation in technology development.

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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