Hirakata, Japan

Issei Yoshioka

This inventor holds 3 USPTO granted patents. Top assignee: Seiwa Kasei Company, Limited. Active years: 1981-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Issei Yoshioka. Retrieved from https://idiyas.com/inventor/issei-yoshioka-uqtdaa1k

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 = 2.4

ph-index = 3

Forward Citations = 45(Granted Patents)


Location History:

  • Hirakata, JP (1981 - 1983)
  • Osaka, JP (1992)

Company Filing History:


Years Active: 1981-1992

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3 patents (USPTO):Explore Patents

Title: The Innovations of Issei Yoshioka

Introduction

Issei Yoshioka is a notable inventor based in Hirakata, Japan. He has made significant contributions to the field of cosmetic chemistry, particularly in the development of hair treatment products. With a total of 3 patents to his name, Yoshioka's work has had a lasting impact on the industry.

Latest Patents

Yoshioka's latest patents include a permanent waving composition and a keratin hydrolyzate useful as hair fixatives. The permanent waving composition is an aqueous solution that contains a quaternary ammoniomercaptan or its salt, which can be used under various conditions to create waves in hair with minimal damage and odor. The keratin hydrolyzate is a water-soluble product that features at least two mercapto groups and is suitable for cosmetic applications, particularly as a hair fixative. This hydrolyzate is produced by reducing keratin in an alkaline solution and then subjecting it to enzymatic hydrolysis.

Career Highlights

Yoshioka is currently employed at Seiwa Kasei Company, Limited, where he continues to innovate in the field of hair care products. His work has been instrumental in advancing formulations that enhance the quality and effectiveness of hair treatments.

Collaborations

Throughout his career, Yoshioka has collaborated with notable colleagues, including Yoichi Kamimura and Masao Kitano. These partnerships have contributed to the development of innovative products and have fostered a collaborative environment for research and development.

Conclusion

Issei Yoshioka's contributions to the field of cosmetic chemistry, particularly in hair treatment innovations, have established him as a significant figure in the industry. His patents reflect a commitment to improving hair care products while minimizing damage and enhancing user experience.

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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