This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: Sekisui Chemical Co., Ltd.. Active years: 2000-2013.
Location History:
- Shiga-ken, JP (2001)
- Shiga, JP (2000 - 2013)
Company Filing History:
Years Active: 2000-2013
Title: Hiroaki Takehara: Innovator in Polyvinyl Acetal Resin Technology
Introduction
Hiroaki Takehara is a notable inventor based in Shiga, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of crosslinked polyvinyl acetal resins. With a total of 4 patents to his name, Takehara's work has advanced the understanding and application of these materials in various industries.
Latest Patents
Takehara's latest patents include a method for the production of crosslinked polyvinyl acetal resin. This innovative method aims to provide a resin with high mechanical strength and excellent solvent resistance without the need for a cross-linking agent. The process involves irradiating a polyvinyl acetal resin with ultraviolet light, which enhances its properties and addresses issues such as sheet attack and viscosity instability. Another significant patent involves a toner resin composition that incorporates a vinyl copolymer and Fischer-Tropsch wax, showcasing his versatility in polymer applications.
Career Highlights
Hiroaki Takehara is currently employed at Sekisui Chemical Co., Ltd., a leading company in the chemical industry. His work at Sekisui has allowed him to collaborate with other talented professionals and contribute to groundbreaking innovations in resin technology.
Collaborations
Some of Takehara's notable coworkers include Takashi Ueyama and Masazumi Okudo. Their collaborative efforts have further enhanced the research and development of advanced materials within the company.
Conclusion
Hiroaki Takehara's contributions to the field of polymer chemistry, particularly in the development of crosslinked polyvinyl acetal resins, highlight his innovative spirit and dedication to advancing material science. His patents reflect a commitment to solving industry challenges and improving product performance.