Tainai, Japan

Atsuhiro Nakahara

This inventor holds 21 USPTO granted patents and 19 published patent applications, plus 1 CIPO patent and 16 EPO patents, primarily in Ionomer Resin Technology. Top assignees: Kuraray Co., Ltd., Kuraray Europe Gmbh, Kurarayco., Ltd.. Active years: 2010-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Atsuhiro Nakahara. Retrieved from https://idiyas.com/inventor/atsuhiro-nakahara

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

USPTO Granted Patents = 21 

% Patents Active = 76.2


 

Average Co-Inventor Count = 4.1

ph-index = 1

Forward Citations = 9(Granted Patents)


Location History:

  • Kurashiki, JP (2010 - 2011)
  • Okayama, JP (2013)
  • Tainai, JP (2017 - 2022)
  • Chiyoda-ku, JP (2020 - 2022)

Company Filing History:


Years Active: 2010-2026

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Areas of Expertise:
Ionomer Resin
Methacrylic Resin
Laminated Glass
Gas Barrier Layered Product
Molded Article
Film
Copolymer
Resin Sheet
Production Method
Packaging Medium
Hydrogenated Polymers
Interlayer Film
21 patents (USPTO):Explore Patents

Title: Atsuhiro Nakahara: A Pioneer in Ionomer and Vinyl Acetal Resins

Introduction

Atsuhiro Nakahara, an accomplished inventor from Tainai, Japan, has made significant contributions to the field of polymer chemistry. With a total of 19 patents to his name, Nakahara's work focuses on the development and manufacturing processes of innovative resin materials that enhance product performance and utility.

Latest Patents

Among his most recent patents, Nakahara has devised a method for producing ionomer resin. This innovative process includes adding a poor solvent to a crude ionomer resin solution, which contains a combination of (meth)acrylic acid and ethylene units. The result is a granular resin with a precise particle size, effectively enhancing its applicability in various industries.

Additionally, Nakahara has developed a modified vinyl acetal resin specifically for interlayer film applications in laminated glass. This resin formulation boasts remarkable transparency, impact resistance, heat resistance, and molding capability. By incorporating a balance of ethylene and vinyl alcohol units, along with an optimal degree of acetalization, this invention addresses critical challenges in the production of high-performance laminated glass.

Career Highlights

Nakahara's professional journey includes pivotal roles at Kuraray Co., Ltd. and Kuraray Europe GmbH. His tenure at these companies has allowed him to lead innovative projects that align with his expertise in polymer science, contributing to advancements in material technology.

Collaborations

Throughout his career, Nakahara has collaborated with esteemed professionals in the field, including notable coworkers like Toru Abe and Hiroshi Ozawa. These partnerships have fostered a dynamic exchange of ideas, further enhancing the scope and impact of his inventions.

Conclusion

Atsuhiro Nakahara's inventive spirit and dedication to the advancement of resin technology have undoubtedly left a mark on the industry. His portfolio of patents not only showcases his technical prowess but also emphasizes the importance of innovation in creating materials that continuously meet the evolving demands of various sectors.

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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