Osaka, Japan

Shuuichi Hashimoto

This inventor holds 2 USPTO granted patents. Top assignee: Yamamoto Chemicals, Inc.. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shuuichi Hashimoto. Retrieved from https://idiyas.com/inventor/shuuichi-hashimoto

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 = 5.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 1994

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2 patents (USPTO):Explore Patents

Title: Shuuichi Hashimoto: Inventor in Recording-Material Chemistry.

Introduction

Shuuichi Hashimoto is an inventor associated with Osaka, Japan, and Yamamoto Chemicals, Inc. His listed work concerns a crystal modification of a color-forming compound used in pressure-sensitive and thermal recording materials. His patent portfolio includes 2 patents.

Latest Patents

Hashimoto’s latest listed patent concerns an improved β-type crystal modification of 2-(3-methylanilino)-3-methyl-6-diethylaminofluoran. The compound’s high solubility in inner-phase solvents makes it useful as a color former in pressure-sensitive and thermal recording materials.

Recording materials using this compound are described as offering favorable performance in background whiteness, storage stability, color rendition, color-formation sensitivity, and image fastness. These properties address several practical requirements for recording materials.

Career Highlights

Hashimoto’s listed invention focuses on modifying the crystal form of a color-forming compound to support its use in recording applications. His work is associated with Yamamoto Chemicals, Inc.

Collaborations

Hashimoto’s listed coworkers include Sayuri Wada and Yojiro Kumagae.

Conclusion

Shuuichi Hashimoto’s recorded patent work highlights a crystal modification designed to improve the usefulness of a color former in pressure-sensitive and thermal recording materials.

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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