Himeji, Japan

Masafumi Okamoto

This inventor holds 5 USPTO granted patents and 2 EPO patents. Top assignees: Nippon Steel Corporation, Sumitomo Seika Chemicals Co., Ltd.. Active years: 1978-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Okamoto. Retrieved from https://idiyas.com/inventor/masafumi-okamoto

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


% Patents Active = 80.0

 

Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 18(Granted Patents)


Location History:

  • Himeji, JA (1978)
  • Hyogo, JP (2014)
  • Himeji, JP (1980 - 2022)

Company Filing History:


Years Active: 1978-2022

Loading Chart...
Loading Chart...
5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masafumi Okamoto in Adhesive and Polycarbonate Technologies

Introduction: Masafumi Okamoto is a prominent inventor based in Himeji, Japan, known for his significant contributions to the fields of adhesive formulations and polymer production. With a total of five patents to his name, Okamoto has demonstrated a commitment to advancing materials science through innovative approaches and methods.

Latest Patents: Masafumi Okamoto's recent inventions showcase his expertise and creativity. One of his notable patents is an **epoxy resin adhesive agent** designed to exhibit low shrinkage and excellent adhesiveness. This adhesive is composed of an epoxy resin, a curing agent, and a particulate polyolefin-based resin with a specific particle size range, optimizing performance in various applications.

Another remarkable patent focuses on a **method for producing aliphatic polycarbonate**, which utilizes carbon dioxide and an epoxide. This method allows for the production of aliphatic polycarbonates with minimal metal catalyst content, enhancing the purity of the final product. The process includes a polymerization step and subsequent surfactant treatment, emphasizing efficiency and sustainability in polymer chemistry.

Career Highlights: Throughout his career, Masafumi Okamoto has collaborated with esteemed organizations such as Nippon Steel Corporation and Sumitomo Seika Chemicals Co., Ltd. His work in these companies has not only contributed to their research and development efforts but also established him as an influential figure in industrial chemistry.

Collaborations: Masafumi Okamoto has significantly benefited from collaborations with fellow innovators, including Kiyoshi Tanaka and Morio Shiozaki. These partnerships have enabled a synergistic exchange of ideas and expertise, further enhancing the impact of their collective work on technology advancements.

Conclusion: Masafumi Okamoto's inventive spirit and dedication to developing new materials and methods set him apart as a key contributor to modern science. His patents in epoxy resins and polycarbonates reflect not only his technical proficiency but also his foresight in addressing the evolving needs of various industries. As he continues to innovate, Okamoto stands as an inspiring example for future inventors and researchers aiming to make a difference in technological advancements.

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]
Loading…