Location History:
- Kuga, JP (1995)
- Waki-cho, JP (1999)
- Yamaguchi-ken, JP (2003)
- Kuga-gun, JP (2003 - 2008)
- Yamaguchi, JP (1992 - 2010)
- Sodegaura, JP (2010)
- Ichihara, JP (2012)
- Shunan, JP (2015)
Company Filing History:
8 out of 1,786 
3 out of 1,008 
1 out of 62 Years Active: 1992-2015
Title: **Tetsuji Kasai - Innovator in Polymer Chemistry**
Introduction
Tetsuji Kasai is a prominent inventor based in Yamaguchi, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of advanced propylene-based and ethylene-based materials. With a total of 11 patents to his name, Kasai has paved the way for new innovations in manufacturing processes and material properties.
Latest Patents
Among his notable recent inventions are patents focused on propylene-based copolymers and ethylene polymers. One of his key patents describes a propylene-based copolymer that boasts a high melt tension due to its long-chain branched structure. This innovation allows for excellent molding processability across various methods, including inflation molding, extrusion molding, blow molding, injection molding, and vacuum forming. The resulting foamed products from this copolymer exhibit a remarkable expansion ratio and cell uniformity during foaming.
In another significant patent, he developed an ethylene polymer that offers superior fluidity and moldability, resulting in molded products with impressive mechanical strength. This ethylene polymer contains a specific percentage of constitutional units derived from alpha-olefins, ensuring its density falls within the range of 945 to 975 kg/m³ while fulfilling essential mechanical requirements.
Career Highlights
Throughout his career, Kasai has worked with notable companies such as Mitsui Chemicals, Inc. and Mitsui Petrochemical Industries, Ltd. His tenure at these organizations has provided him with a platform to leverage his expertise in polymer science, bringing innovative solutions to real-world applications.
Collaborations
Kasai has collaborated with esteemed colleagues like Mamoru Takahashi and Shiro Otsuzuki, contributing to collective advancements in their field. These partnerships have further enriched the development processes and outcomes of their projects, facilitating a dynamic exchange of ideas and expertise.
Conclusion
Tetsuji Kasai stands as a significant figure in the innovation landscape of polymer materials. His extensive patent portfolio reflects his dedication to advancing the capabilities of copolymers and ethylene polymers, positioning him as an influential inventor in the industry. As material science continues to evolve, Kasai’s contributions will undoubtedly shape the future of manufacturing and product development.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.