Company Filing History:
Years Active: 2013-2021
Title: Kazunari Yasumura: Innovator in Viscosity Index Improvers
Introduction
Kazunari Yasumura is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of lubricating oil compositions, particularly through his innovative viscosity index improvers. With a total of 3 patents to his name, Yasumura's work has had a considerable impact on the industry.
Latest Patents
Yasumura's latest patents include a viscosity index improver and lubricating oil composition. This invention comprises a copolymer that includes a unit derived from a maleimide monomer and a unit derived from a macromonomer. The viscosity measured by the specified method is 8000 mPa·s or less. The viscosity measurement method involves a solution composed of 78 mass % of a Group III base oil and 22 mass % of the copolymer, measured at 25°C using a viscometer. Another patent focuses on a viscosity index improver that features a polymer with a high viscosity index and good shear stability, ensuring sufficient solubility in a lubricating base oil. This polymer meets specific criteria regarding molecular weight and branching degree.
Career Highlights
Throughout his career, Yasumura has worked with prominent companies such as Nippon Shokubai Co., Ltd. and Sanyo Electric Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced lubricating oil compositions.
Collaborations
Yasumura has collaborated with notable coworkers, including Keiko Izumi and Yohei Imaizumi. Their joint efforts have likely enhanced the innovation process and contributed to the successful development of his patents.
Conclusion
Kazunari Yasumura is a distinguished inventor whose work in viscosity index improvers has advanced the field of lubricating oil compositions. His innovative patents and career achievements reflect his dedication to enhancing product performance in the industry.