This inventor holds 3 USPTO granted patents. Top assignee: Mitsui Petrochemical Industries, Ltd.. Active years: 1982-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Iwakuni, JP (1982)
- Chiba, JP (1986)
Company Filing History:
Years Active: 1982-1986
Title: Nobuyuki Takeda: Innovator in Epoxy Resin Technology
Introduction
Nobuyuki Takeda is a prominent inventor based in Iwakuni, Japan. He has made significant contributions to the field of epoxy resin technology, holding a total of 3 patents. His work focuses on enhancing the properties of resin compositions, particularly in terms of heat resistance and mechanical strength.
Latest Patents
Takeda's latest patents include innovative formulations such as polyglycidyl ethers of polynuclear polyhydric phenols. This invention discloses a polynuclear polyhydric phenol represented by a specific general formula, where various substituents can be hydrogen atoms or lower alkyl groups. The resulting polyepoxy compound, when combined with a curing agent, yields a curable epoxy resin composition that exhibits excellent heat resistance characteristics. Another notable patent involves high-molecular-weight novolak types of substituted phenolic resins. This resin is prepared by reacting a bifunctional phenol or a low-molecular-weight novolak type substituted phenolic resin with a chain extender in the presence of an acid catalyst. The resulting novolak type substituted phenolic resin has a significantly higher molecular weight than conventional types, leading to improved heat resistance and mechanical properties when incorporated into various setting type resins.
Career Highlights
Nobuyuki Takeda is currently employed at Mitsui Petrochemical Industries, Ltd., where he continues to innovate in the field of polymer chemistry. His work has been instrumental in advancing the applications of epoxy resins in various industries.
Collaborations
Throughout his career, Takeda has collaborated with notable colleagues such as Tadao Iwata and Shigeru Katayama. These collaborations have further enriched his research and development efforts in resin technology.
Conclusion
Nobuyuki Takeda's contributions to epoxy resin technology have established him as a key figure in the field. His innovative patents and ongoing work at Mitsui Petrochemical Industries, Ltd. continue to influence advancements in material science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile