Niigata, Japan

Yasuo Shiragai

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1988-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Shiragai. Retrieved from https://idiyas.com/inventor/yasuo-shiragai

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 3

Forward Citations = 44(Granted Patents)


Company Filing History:


Years Active: 1988-1992

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3 patents (USPTO):Explore Patents

Title: Yasuo Shiragai: Innovator in Paper Handling Technology

Introduction

Yasuo Shiragai is a notable inventor based in Niigata, Japan. He has made significant contributions to the field of paper handling technology, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of devices that manage sheets of paper.

Latest Patents

One of Yasuo Shiragai's latest patents is an apparatus for handling sheets of paper. This innovative device includes a conveying mechanism that operates among an accommodating section for storing sheets, a counting section for discriminating and counting the sheets, and a port section for the input and output of the sheets. The apparatus is designed to deliver sheets to various components based on specified transactions between discharge and deposit accepting transactions.

Career Highlights

Yasuo Shiragai is currently employed at Hitachi, Ltd., where he continues to develop and refine technologies related to paper handling. His expertise in this area has positioned him as a key figure in the advancement of efficient paper management systems.

Collaborations

Throughout his career, Yasuo has collaborated with talented individuals such as Hirotaka Tutamune and Yoshiaki Karino. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.

Conclusion

Yasuo Shiragai's contributions to paper handling technology exemplify his dedication to innovation. His patents reflect a commitment to enhancing the efficiency of paper management systems, making a lasting impact in the field.

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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