This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignees: Matsumoto Yushi-Seiyaku Co., Ltd., The Yokohama Rubber Co., Ltd.. Active years: 2006-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 76 
1 out of 2,770 
Years Active: 2006-2012
Title: Yoshiaki Shirakabe: Innovator in Heat-Expandable Microspheres
Introduction
Yoshiaki Shirakabe is a notable inventor based in Yao, Japan, recognized for his contributions to the field of materials science. He holds three patents, showcasing his innovative approach to developing advanced materials for various applications.
Latest Patents
Shirakabe's latest patents include the invention of heat-expandable microspheres and a rubber composition for tires. The heat-expandable microspheres consist of a thermoplastic resin shell that encapsulates a core material. This core material includes a blowing agent with a boiling point lower than the softening point of the thermoplastic resin, along with a gas migration inhibitor that has a higher boiling point. The specific ratio of the gas migration inhibitor to the core material is crucial, ranging from at least 1 weight percent to below 30 weight percent. The average particle size of these microspheres varies from 1 to 100 micrometers. Additionally, his rubber composition for tires incorporates 100 parts by weight of a diene-based rubber and 0.5 to 25 parts by weight of a heat-expandable microcapsule, which generates gas and nonpolar oil when heated.
Career Highlights
Throughout his career, Yoshiaki Shirakabe has worked with prominent companies such as Matsumoto Yushi-seiyaku Co., Ltd. and The Yokohama Rubber Co., Ltd. His work has significantly impacted the development of innovative materials in the rubber and plastics industries.
Collaborations
Shirakabe has collaborated with notable individuals in his field, including Toshiaki Masuda and Kenichi Kitano. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
Yoshiaki Shirakabe's innovative work in heat-expandable microspheres and rubber compositions highlights his significant contributions to materials science. His patents reflect a commitment to advancing technology and improving product performance in various industries.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile