Yokohama, Japan

Yohei Hirai

This inventor holds 5 USPTO granted patents. Top assignees: Sumitomo Electric Industries, Limited, Biomaterial Research Institute Co., Ltd., Biomedical Research Institute Co., Ltd.. Active years: 1998-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yohei Hirai. Retrieved from https://idiyas.com/inventor/yohei-hirai

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


% Patents Active = 60.0

Average Co-Inventor Count = 3.1

ph-index = 3

Forward Citations = 31(Granted Patents)


Location History:

  • Chigasaki, JP (1998)
  • Kanagawa, JP (2000)
  • Yokohama, JP (2007 - 2009)

Company Filing History:


Years Active: 1998-2009

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5 patents (USPTO):Explore Patents

Title: Yohei Hirai: Innovator in Hair Growth Technology

Introduction

Yohei Hirai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of hair growth technology, holding a total of 5 patents. His work focuses on developing innovative oligopeptides that promote hair growth and morphogenesis.

Latest Patents

Hirai's latest patents include a hair growth promoting oligopeptide. The objective of this invention is to provide an oligopeptide with hair growth promoting activity. The oligopeptide is represented by the formula (I): X1-X2-X3-X4-X5-X6-X7, where X1 represents an amino acid residue such as Ser, X2 represents Ile, X3 represents Glu, X4 represents Gln, X5 represents Ser, X6 represents Cys or Lys with a modifying group containing a carbonyl group, and X7 represents Glu or Ala. Another significant patent involves oligopeptides that promote morphogenesis, particularly hair growth. These oligopeptides can exist in various forms, including monomers and polymers, and the invention also includes monoclonal antibodies that recognize a 220 kDa antigen of epithelial new hair follicles.

Career Highlights

Throughout his career, Yohei Hirai has worked with prominent companies such as Sumitomo Electric Industries and Biomaterial Research Institute. His experience in these organizations has contributed to his expertise in the field of biochemistry and hair growth technologies.

Collaborations

Hirai has collaborated with notable coworkers, including Kyoko Takebe and Yumiko Oka. Their combined efforts have further advanced the research and development of hair growth solutions.

Conclusion

Yohei Hirai's innovative work in the field of hair growth technology has led to the development of valuable patents that hold promise for future applications. His contributions continue to impact the industry positively.

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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