This inventor holds 2 USPTO granted patents and 4 published patent applications. Top assignee: Sumitomo Chemical Company, Limited. Active years: 2018-2020.
Location History:
- Niihama, JP (2018)
- Nihama, JP (2020)
Company Filing History:
Years Active: 2018-2020
Title: The Innovations of Masateru Sembara
Introduction
Masateru Sembara is a notable inventor based in Nihama, Japan. He has made significant contributions to the field of battery technology, particularly in the development of separators for lithium-ion batteries. With a total of 2 patents to his name, Sembara's work is recognized for its innovative approaches to enhancing battery performance and safety.
Latest Patents
Sembara's latest patents include a long porous separator sheet and a method for producing the same, which aims to improve the durability of separator sheets used in lithium-ion batteries. The design features a lateral surface of the separator sheet with an edge length to longer side length ratio of less than 1.04, making it less likely to tear during processing. Another significant patent is for a nonaqueous electrolyte secondary battery separator, which includes a porous film primarily made of polyolefin with a weight average molecular weight of not less than 500,000. This separator is designed with specific orientation ratios and thickness to enhance shutdown temperature and puncture strength, thereby improving the overall safety and efficiency of the battery.
Career Highlights
Masateru Sembara is currently employed at Sumitomo Chemical Company, Limited, where he continues to innovate in the field of battery technology. His work has been instrumental in advancing the capabilities of nonaqueous electrolyte secondary batteries, which are widely used in various electronic devices and electric vehicles.
Collaborations
Throughout his career, Sembara has collaborated with notable colleagues such as Daizaburo Yashiki and Atsuhiro Takata. These collaborations have contributed to the successful development of his patented technologies and have fostered a collaborative environment for innovation.
Conclusion
Masateru Sembara's contributions to battery technology through his patents and work at Sumitomo Chemical Company, Limited highlight his role as a key innovator in the field. His advancements in separator technology are paving the way for safer and more efficient energy storage solutions.