This inventor holds 1 USPTO granted patent. Top assignees: Mitsui-Nisso Corporation, Nippon Unicar Company Limited, Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1978.
Company Filing History:
1 out of 6 
1 out of 39 
1 out of 1,838 Years Active: 1978
Title: Yuichi Nomura: Innovator in Flexible Urethane Foams
Introduction
Yuichi Nomura is a notable inventor based in Yokohama, Japan. He is recognized for his contributions to the field of flexible urethane foams, particularly through his innovative patent that enhances the manufacturing process of these materials. His work has implications for various industries, including automotive and furniture manufacturing.
Latest Patents
Nomura holds a patent for a "Process for manufacturing high-resilient flexible urethane foams." This process is characterized by the reaction and foaming of polyalkylene ether polyol and an organic polyisocyanate in the presence of a blowing agent, surfactant, and catalyst. The polyalkylene ether polyol used contains 2 to 10% by weight of a vinyl type polymer, with a hydroxyl number ranging from 25 to 60 mg KOH/g. Notably, 20 to 70 mol% of its hydroxyl groups are primary hydroxyl groups, while the remaining are secondary hydroxyl groups. The organic polyisocyanate is a mixture of tolylene diisocyanate with diphenylmethane diisocyanate or a crude diphenylmethane diisocyanate. The surfactant comprises a mixture of a high-molecular-weight siloxane-oxyalkylene copolymer and a low-molecular-weight siloxane-oxyalkylene copolymer. Nomura's innovative approach has led to the development of high-resilient flexible urethane foams that meet industry demands.
Career Highlights
Throughout his career, Yuichi Nomura has worked with prominent companies such as Mitsui-Nisso Corporation and Nippon Unicar Company Limited. His experience in these organizations has allowed him to refine his expertise in materials science and manufacturing processes. His contributions have significantly impacted the development of flexible foams used in various applications.
Collaborations
Nomura has collaborated with notable colleagues, including Kiyoshi Matsubara and Tadashi Yatomi. These partnerships have fostered innovation and have been instrumental in advancing research in the field of flexible urethane foams.
Conclusion
Yuichi Nomura's work in the manufacturing of high-resilient flexible urethane foams showcases his innovative spirit and dedication to advancing material science. His patent and career achievements reflect