This inventor holds 2 USPTO granted patents and 2 EPO patents. Top assignee: Denka Company Limited. Active years: 2016-2018.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ichihara, JP (2016)
- Tokyo, JP (2018)
Company Filing History:
Years Active: 2016-2018
Title: The Innovations of Takeshi Ohtsuka
Introduction
Takeshi Ohtsuka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of copolymers that enhance the heat resistance of various resins. With a total of 2 patents to his name, Ohtsuka's work is recognized for its innovative approach to improving the properties of materials used in various applications.
Latest Patents
Ohtsuka's latest patents include a copolymer designed to improve the heat resistance of methacrylic resin. This copolymer not only enhances heat resistance but also preserves the excellent transparency of the methacrylic resin, resulting in molded products with outstanding appearance. The copolymer comprises 45 to 85 mass % of an aromatic vinyl monomer unit, 5 to 45 mass % of a (meth)acrylic acid ester monomer unit, and 10 to 20 mass % of an unsaturated dicarboxylic acid anhydride monomer unit. It achieves a total light transmittance of 88% or more, measured in accordance with ASTM D1003 for a sample with a thickness of 2 mm.
Another significant patent by Ohtsuka focuses on a copolymer for improving the heat resistance of aromatic vinyl-vinyl cyanide based resin. Similar to his previous invention, this copolymer maintains excellent transparency and enhances heat resistance, leading to molded products with superior appearance. The composition of this copolymer mirrors that of his methacrylic resin copolymer, ensuring high performance in various applications.
Career Highlights
Takeshi Ohtsuka is currently associated with Denka Company Limited, where he continues to innovate in the field of materials science. His work has been instrumental in advancing the capabilities of resins used in numerous industries. Ohtsuka's dedication to research and development has positioned him as a key figure in his field.
Collaborations
Throughout his career, Ohtsuka has collaborated with esteemed colleagues such as Yuichi Shindo and Tetsuo Noguchi. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Takeshi Ohtsuka's contributions to the field of materials
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile