This inventor holds 2 USPTO granted patents. Top assignee: Daicel Chemical Industries, Ltd.. Active years: 1995-2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Himeji, JP (1995)
- Hyogo, JP (2004)
Company Filing History:
Years Active: 1995-2004
Title: Hiroshi Ogawa: Innovator in Cellulose Triacetates and Copolymers
Introduction
Hiroshi Ogawa is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of materials science, particularly in the development of cellulose triacetates and copolymers. With a total of 2 patents, his work has implications for various industrial applications.
Latest Patents
Ogawa's latest patents include innovative methods for producing cellulose triacetates. One of his inventions provides a cellulose triacetate that exhibits satisfactory filtration performance. This cellulose triacetate has an occlusion constant (K) of 70 or less, determined through a specific filtration method. The method involves dissolving the cellulose triacetate in a solvent mixture of methylene chloride and methanol, followed by filtration under controlled conditions.
Another significant patent is an improved process for preparing an alkyl vinyl ether/maleic anhydride copolymer. This process allows for copolymerization in an admixture of an ester and a hydrocarbon, resulting in a product that does not contain harmful aromatic solvents. The copolymer produced has a higher apparent bulk density compared to previous methods.
Career Highlights
Hiroshi Ogawa is currently associated with Daicel Chemical Industries, Ltd., where he continues to innovate in the field of chemical engineering. His work has been instrumental in advancing the applications of cellulose and copolymers in various industries.
Collaborations
Ogawa has collaborated with notable colleagues such as Hirofumi Sasai and Toru Ozaki. These collaborations have further enriched his research and development efforts.
Conclusion
Hiroshi Ogawa's contributions to the field of materials science, particularly through his patents on cellulose triacetates and copolymers, highlight his innovative spirit and dedication to advancing technology. His work continues to influence various industrial applications and showcases the importance of research in developing sustainable materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile