This inventor holds 2 USPTO granted patents. Top assignee: Hitachi Chemical Company, Ltd.. Active years: 1990-1991.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1990-1991
Title: Toichi Sakata: Innovator in Polyamide-Imide Resin Technology
Introduction
Toichi Sakata is a prominent inventor based in Katsuta, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of high molecular weight polyamide-imide resins. With a total of 2 patents to his name, Sakata's work has had a notable impact on various applications, including liquid crystal display devices.
Latest Patents
Sakata's latest patents include a process for the production of high molecular weight polyamide-imide resin. This innovative process allows for the creation of polyamide-imides with a reduced viscosity of 0.3 dl/g or above, which exhibit excellent heat resistance and melt flowability. The economic efficiency of this process is a significant advantage in the production of these materials. Another notable patent involves a solvent-soluble polyimide obtained from an exo-form dicarboxylic acid anhydride with an aromatic diamine, such as 2,2-bis[4-(4-aminophenoxy)phenyl]propane. This polyimide is improved in film-forming properties and transparency, making it particularly suitable for producing orientation controlling films in liquid crystal display devices.
Career Highlights
Toichi Sakata is associated with Hitachi Chemical Company, Ltd., where he has been instrumental in advancing polymer technology. His work has not only contributed to the company's portfolio but has also enhanced the overall quality and performance of materials used in various industries.
Collaborations
Sakata has collaborated with notable coworkers, including Yoshiyuki Mukoyama and Yoshihiro Nomura. These collaborations have fostered innovation and have led to the successful development of new materials and processes.
Conclusion
Toichi Sakata's contributions to the field of polymer chemistry, particularly in the development of high molecular weight polyamide-imide resins, highlight his role as a key innovator. His patents reflect a commitment to advancing technology and improving material performance in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile