This inventor holds 7 USPTO granted patents and 5 published patent applications, plus 2 CIPO patents and 5 EPO patents. Top assignees: Daikin Industries, Ltd., Osaka University, Otsuka Packaging Industries Co., Ltd.. Active years: 2015-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Settsu, JP (2015 - 2016)
- Osaka, JP (2020 - 2022)
Company Filing History:



Years Active: 2015-2025
Title: Eiji Masuda: Innovator in Polytetrafluoroethylene Production
Introduction
Eiji Masuda is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of materials science, particularly in the production of low-molecular-weight polytetrafluoroethylene. With a total of 7 patents to his name, Masuda's work has had a substantial impact on various industrial applications.
Latest Patents
Masuda's latest patents include innovative methods for producing low-molecular-weight polytetrafluoroethylene. One notable patent describes a production method that involves irradiating polytetrafluoroethylene containing C4-C16 perfluorocarboxylic acids or their salts. This method significantly reduces the amount of these acids while achieving a melt viscosity at 380° C. of 1.0×107 Pa·s. Another patent outlines a similar process that irradiates high-molecular-weight polytetrafluoroethylene to produce low-molecular-weight variants, ensuring the final product is substantially free from perfluorooctanoic acid and its salts.
Career Highlights
Throughout his career, Eiji Masuda has worked with notable companies such as Daikin Industries, Ltd. and Otsuka Pharmaceutical Factory, Inc. His experience in these organizations has allowed him to refine his expertise in polymer science and contribute to advancements in the industry.
Collaborations
Masuda has collaborated with esteemed colleagues, including Tetsuya Uehara and Kazuya Kawahara. These partnerships have fostered a collaborative environment that has led to innovative solutions in the field of polytetrafluoroethylene production.
Conclusion
Eiji Masuda's contributions to the field of materials science, particularly through his patents and collaborations, highlight his role as a key innovator in polytetrafluoroethylene production. His work continues to influence the industry and pave the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile