This inventor holds 12 USPTO granted patents and 1 published patent application. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1989-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- both Ichihara, JP (1991)
- Chiba, JP (1989 - 1994)
- Ichihara, JP (1991 - 1995)
Company Filing History:
Years Active: 1989-1995
Title: **Hisao Tanaka: Innovator in Polymer Technology**
Introduction
Hisao Tanaka, a distinguished inventor based in Chiba, Japan, has made significant contributions to the field of polymer science. With a portfolio that includes 12 patents, his work focuses on enhancing materials used in engineering and plastics, thereby driving innovation in various industries.
Latest Patents
Tanaka's latest patents reflect his expertise in graft copolymers and engineering plastics. One notable patent details a novel graft copolymer with a number-average molecular weight ranging from about 1,500 to 1,000,000. This copolymer is created through the graft-copolymerization of an alkylene oxide and a cyclic ester to a saponified ethylene-saturated carboxylic acid vinyl ester copolymer. The innovative product also includes a plasticizer that employs this graft copolymer as the active component.
Another significant patent involves a process for producing a reinforced crystalline engineering plastic composition. This process entails melt-kneading a specific mixture of crystalline engineering plastic, glass fibers, and an epoxy- or acid anhydride-containing ethylene copolymer. The resulting composition not only showcases excellent moldability but also brings about a molded article with enhanced appearance, mechanical, and thermal properties.
Career Highlights
Tanaka's professional journey is rooted in his role at Sumitomo Chemical Company Limited, where he has been instrumental in advancing polymer technology. His innovative mindset and dedication to research have positioned him as a key figure in the development of high-performance materials.
Collaborations
Throughout his career, Tanaka has collaborated with notable coworkers such as Tadayuki Ohmae and Sumio Hara, contributing to a dynamic team environment that fosters creativity and innovation in polymer research. These collaborations have further enhanced the scope and impact of his inventions.
Conclusion
Hisao Tanaka stands out as a prominent inventor whose work continues to shape the future of polymer materials. Through his patents and collaborative efforts, he demonstrates the vital role inventors play in fostering innovation and improving industrial applications of engineering plastics.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile