This inventor holds 26 USPTO granted patents and 1 EPO patent, primarily in Polypropylene Chemistry. Top assignees: Mitsui Petrochemical Industries, Ltd., Mitsui Chemicals, Inc., Agency of Industrial Science and Technology. Active years: 1984-2005.
Location History:
- Iwakuni, JP (1984 - 1992)
- Kuga, JP (1993 - 1995)
- Waki, JP (1996 - 1998)
- Yamaguchi, JP (1991 - 1999)
- Kuga-gun, JP (1997 - 1999)
- Waki-cho, JP (1997 - 2005)
Company Filing History:
18 out of 1,008 
6 out of 1,816 
1 out of 1,430 
Years Active: 1984-2005
Areas of Expertise:
Title: **Yoshihisa Kiso: Innovator in Propylene Polymer Compositions**
Introduction
Yoshihisa Kiso, located in Waki-cho, Japan, has established himself as a prominent figure in the field of polymer science. With a commendable portfolio of 26 patents, he has contributed significantly to the development of advanced propylene polymer compositions that excel in various mechanical properties.
Latest Patents
Kiso's recent innovations include notable patents related to propylene polymer compositions. One of his key inventions describes a method for preparing a propylene polymer composition by mixing a propylene homo- or co-polymer (A) with a co-catalyst, olefin elastomer (D), and other olefin polymers (E). This formulation emphasizes the use of a transition metal catalyst compound, resulting in compositions that showcase exceptional heat resistance and mechanical strength. Additionally, one notable composition utilizes a zirconocene catalyst to produce a propylene polymer with varying melt flow rates, ensuring versatility for applications in automotive, electrical appliances, and daily necessities. These compositions are particularly valuable for their tensile elongation at break, making them ideal for structural materials, films, and sheets.
Career Highlights
Throughout his career, Yoshihisa Kiso has worked with esteemed organizations such as Mitsui Petrochemical Industries, Ltd. and Mitsui Chemicals, Inc. His extensive experience in the industry has allowed him to refine his expertise in polymer development and innovation, ultimately leading to a series of successful patents that address current challenges in material science.
Collaborations
Kiso has had the opportunity to collaborate with notable colleagues, including Junichi Imuta and Takashi Ueda. These collaborations have fostered a creative environment that encourages innovative thinking and has been pivotal in the successful development of new polymer technologies.
Conclusion
Yoshihisa Kiso's contributions to the field of polymer science through his numerous patents are a testament to his dedication and expertise. His work with propylene polymer compositions not only enhances industrial applications but also underscores the importance of continual innovation in the realm of materials science.