Kanagawa, Japan

Yoshihiro Hatakeyama

This inventor holds 3 USPTO granted patents. Top assignees: Nippon Petrochemicals Company, Limited, Japan Polyolefins Co., Ltd.. Active years: 1999-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Hatakeyama. Retrieved from https://idiyas.com/inventor/yoshihiro-hatakeyama-0ix8q0hl

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 = 9.0

ph-index = 3

Forward Citations = 77(Granted Patents)


Company Filing History:


Years Active: 1999-2002

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3 patents (USPTO):Explore Patents

Title: Innovations of Yoshihiro Hatakeyama

Introduction

Yoshihiro Hatakeyama is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of polymer science, particularly in the development of ethylene-α-olefin copolymers. With a total of 3 patents to his name, Hatakeyama's work has had a considerable impact on various applications in materials science.

Latest Patents

Among his latest patents are innovations related to ethylene-α-olefin copolymers and their compositions. One of his notable patents focuses on a polyolefin resin composition that includes an ethylene-α-olefin copolymer characterized by specific properties such as a density ranging from 0.86 to 0.96 g/cm³ and a melt flow rate of 0.01 to 200 g/10 min. This invention also details a composition distribution parameter and an orthodichlorobenzene-soluble content, showcasing the technical depth of his work.

Career Highlights

Throughout his career, Yoshihiro Hatakeyama has worked with prominent companies in the petrochemical industry, including Nippon Petrochemicals Company, Limited and Japan Polyolefins Co., Ltd. His experience in these organizations has allowed him to refine his expertise in polymer technology and contribute to advancements in the field.

Collaborations

Hatakeyama has collaborated with esteemed colleagues such as Tatsuyuki Kamiya and Hisao Sakuma. These partnerships have fostered a collaborative environment that has led to innovative solutions in polymer science.

Conclusion

Yoshihiro Hatakeyama's contributions to the field of polymer science through his patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in materials technology, showcasing the importance of innovation in this sector.

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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