Yokohama, Japan

Yoshiharu Tsuji

This inventor holds 6 USPTO granted patents and 2 published patent applications. Top assignees: Shiseido Company, Limited, Nissha Printing Co., Ltd., Fujisawa Pharmaceutical Company, Ltd.. Active years: 1982-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiharu Tsuji. Retrieved from https://idiyas.com/inventor/yoshiharu-tsuji

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

USPTO Granted Patents = 6 

% Patents Active = 100.0

Average Co-Inventor Count = 4.5

ph-index = 3

Forward Citations = 25(Granted Patents)


Location History:

  • Kyoto, JP (1982 - 1992)
  • Atami, JP (1999 - 2001)
  • Yokohama, JP (1993 - 2003)

Company Filing History:


Years Active: 1982-2003

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6 patents (USPTO):Explore Patents

Title: The Innovative Mind of Yoshiharu Tsuji

Introduction

Yoshiharu Tsuji, an accomplished inventor based in Yokohama, Japan, has carved a significant niche in the world of hairdressing innovations. With six patents to his name, Tsuji's work predominantly revolves around hair cosmetic preparations that enhance hair care and styling.

Latest Patents

Among Tsuji's latest contributions to the field are two groundbreaking patents. The first, titled "Hairdressing Cosmetic Preparation and Hairdressing Method Using the Same," focuses on a unique formulation that includes a heat-gelling polymer. This polymer is designed to gel upon heating, with an ideal gelling temperature set at 60°C or higher. The use of polysaccharides, such as β-1,3-glucan and curdlan, creates a superior hairdressing effect and enhanced hair-setting power when treated with heat.

The second notable patent is the "Hair Revitalizing Tonic Composition Containing a 2,2-Dimethylpropanediol Compound and Use Thereof." This innovative composition utilizes a dimethylpropanediol derivative, contributing to the revitalization and enhancement of hair health.

Career Highlights

Throughout his career, Yoshiharu Tsuji has collaborated with prominent companies, including Shiseido Company, Limited and Nissha Printing Co., Ltd. His work within these esteemed organizations has significantly influenced the quality and effectiveness of hairdressing products available in the market today.

Collaborations

Tsuji has not worked alone; he has partnered with talented individuals such as Shigekazu Namura and Tsunao Magara. Their collective expertise has fostered an environment of innovation and creativity, further enhancing the development of revolutionary hair care solutions.

Conclusion

Yoshiharu Tsuji embodies the spirit of innovation in the hairdressing industry. With his six patents showcasing cutting-edge technology in hair cosmetic preparations, Tsuji continues to inspire professionals and consumers alike. His commitment to enhancing hair care through effective and innovative solutions marks him as a significant contributor to the field, shaping the future of hairdressing.

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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