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For the Inventor, By the Inventor

Kawasaki, Japan

Shigeru Ainai

This inventor holds 3 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1997-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Ainai. Retrieved from https://idiyas.com/inventor/shigeru-ainai

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

Calculating rank
USPTO Granted Patents = 3

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:

goldMedal3 out of 39,378 
 
Fujitsu Corporation
 patents

Years Active: 1997-2001

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3 patents (USPTO):Explore Patents
1. 6178267 - Image processing apparatus (2001-01-23),
2. 6002842 - Halftone representation taking into account characteristics of image and (1999-12-14),
3. 5663800 - Page printer having no memory for storing image data for entire page (1997-09-02),

Title: Shigeru Ainai: Innovator in Image Processing Technology

Introduction

Shigeru Ainai is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of image processing, holding a total of 3 patents. His work focuses on enhancing the quality and efficiency of image data processing, which is crucial in various applications, including printing technology.

Latest Patents

One of Ainai's latest patents is an image processing apparatus that includes a threshold value processing circuit. This circuit subjects a correction value with respect to input image data to a threshold value process, outputting the resulting image data. Additionally, it features a subtracting circuit that generates an error signal based on the difference between the correction value and the output image data. An error filter then distributes this error signal to neighboring pixels of a target pixel within the input image data, while a correction circuit multiplies a coefficient to either the input or output image data. Another notable patent involves a method for achieving halftone representation of image data. This method utilizes a printer and includes steps for providing a variety of tone curves that consider the printer's characteristics, ultimately selecting a tone curve for printing the image data.

Career Highlights

Shigeru Ainai is currently employed at Fujitsu Corporation, where he continues to innovate in the field of image processing. His work has been instrumental in developing technologies that improve image quality and processing speed.

Collaborations

Ainai has collaborated with notable colleagues, including Kazuhiko Sato and Hiroshi Oshio. Their combined expertise has contributed to advancements in image processing technologies.

Conclusion

Shigeru Ainai's contributions to image processing technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in how images are processed and represented.

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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