Fuji, Japan

Yoshihisa Shichijo

This inventor holds 1 USPTO granted patent. Top assignee: Asahi Kasei Kogyo Kabushiki Kaisha. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihisa Shichijo. Retrieved from https://idiyas.com/inventor/yoshihisa-shichijo

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 = 4.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: The Innovations of Yoshihisa Shichijo

Introduction

Yoshihisa Shichijo is a notable inventor based in Fuji, Japan. He is recognized for his contributions to the field of materials science, particularly in the development of flameproof modacrylic fibers. His innovative work has led to advancements that enhance safety and performance in various applications.

Latest Patents

Yoshihisa Shichijo holds a patent for flameproof modacrylic fibers. These fibers exhibit excellent flameproof properties while retaining the superior whiteness and heat stability characteristic of acrylonitrile polymer fibers. The fibers are produced from polymers that contain, as principal components, 50 percent by weight or more of acrylonitrile, 25 percent by weight or more of vinylidene chloride, and 0.1 - 3 percent by weight of bis(2-chloroethyl) vinylphosphonate. Additionally, they may include at least one copolymerizable ethylenically unsaturated compound as an extra component.

Career Highlights

Yoshihisa Shichijo is associated with Asahi Kasei Kogyo Kabushiki Kaisha, a leading company in the chemical industry. His work at the company has significantly contributed to the development of innovative materials that meet safety standards and performance requirements.

Collaborations

Throughout his career, Yoshihisa has collaborated with esteemed colleagues such as Hideo Sato and Yasuo Uchida. These partnerships have fostered a creative environment that encourages the exchange of ideas and the pursuit of groundbreaking innovations.

Conclusion

Yoshihisa Shichijo's contributions to the field of materials science, particularly through his patent for flameproof modacrylic fibers, highlight his role as an influential inventor. His work continues to impact various industries by enhancing safety and performance standards.

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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