Location History:
- Yokohamashi, JP (1980 - 1989)
- Yokohama, JP (1989 - 1992)
- Kanagawa, JP (1992)
Company Filing History:
12 out of 1,109 
1 out of 209 
Years Active: 1980-1992
Title: Nobumasa Ohtake: Innovator in Organosiloxane Technology
Introduction
Nobumasa Ohtake is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of organosiloxane compounds, holding a total of 12 patents. His work focuses on the modification of silicone rubbers and synthetic resins, showcasing his expertise in chemical engineering and materials science.
Latest Patents
Ohtake's latest patents include innovative developments in organosiloxane compounds. One notable patent describes an organosiloxane compound suitable for the modification of silicone rubbers and synthetic resins. This compound can be represented by a specific general formula, where j is an integer ranging from 1 to 2000, R is an alkyl group with 1 to 4 carbon atoms, and R¹ is a pentafluorophenyl group or a fluoroalkyl group. Another significant patent introduces a novel polyorganosiloxane that features a fluorine atom-containing substituent at one terminal and an unsaturated double bond-containing substituent at the other terminal. This polyorganosiloxane is represented by a general formula that includes various alkyl and phenyl groups, further emphasizing Ohtake's innovative approach to material science.
Career Highlights
Throughout his career, Nobumasa Ohtake has worked with notable companies such as Chisso Corporation and Tomoegawa Paper Co., Inc. His experience in these organizations has allowed him to develop and refine his expertise in organosiloxane technology, contributing to advancements in the industry.
Collaborations
Ohtake has collaborated with several talented individuals in his field, including Takaharu Nakano and Takahiro Saho. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies and patents.
Conclusion
Nobumasa Ohtake is a distinguished inventor whose work in organosiloxane compounds has significantly impacted the field of materials science. His innovative patents and collaborations highlight his dedication to advancing technology and improving industrial applications.