Osaka, Japan

Tamotsu Doi

This inventor holds 1 USPTO granted patent. Top assignee: Mizuno Corporation. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tamotsu Doi. Retrieved from https://idiyas.com/inventor/tamotsu-doi

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 = 3.0

ph-index = 1

Forward Citations = 55(Granted Patents)


Company Filing History:


Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: Tamotsu Doi and His Baseball Glove Invention.

Introduction

Tamotsu Doi is an inventor associated with Osaka, Japan, and Mizuno Corporation. His work includes a patented design for a protective baseball glove.

Latest Patents

Doi is credited with 1 patent, titled “Glove for Baseball.” The invention features a thumb holder, an index finger holder, a palm portion, and a back portion. A protective member is mounted on the base between the thumb and index finger holders. It includes a bent portion extending toward the palm and a flat portion extending toward the back, forming a substantially L-shaped section.

Career Highlights

Doi’s patent reflects a focus on protective glove construction for baseball. The design places a shaped protective member between the thumb and index finger areas.

Collaborations

Doi’s listed coworkers include Kazuhiro Kume and Toshiaki Nishimura. He is associated with Mizuno Corporation.

Conclusion

Tamotsu Doi’s baseball glove patent documents a protective design intended to reinforce the area between the thumb and index finger while preserving the glove’s overall structure.

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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