Location History:
- Ichihara, JP (1989)
- Chiba, JP (1992)
Company Filing History:
Years Active: 1989-1992
Title: Jiro Sakai: Innovator in Crystalline Polypropylene
Introduction
Jiro Sakai is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of materials science, particularly in the development of crystalline polypropylene. With a total of 2 patents to his name, Sakai's work has garnered attention for its innovative approaches and practical applications.
Latest Patents
Sakai's latest patents include advancements in crystalline polypropylene and crystalline polypropylene composition. His crystalline polypropylene is noted for its excellent rigidity, heat resistance, and surface hardness. The patent details a specific ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) of 10 or more, an intrinsic viscosity of 0.8 to 5.0 dl/g as measured in tetralin at 135°C, and a cold xylene-soluble content of not more than 4% by weight. Additionally, the density of this material is 0.910 g/cm³ or more at 23°C, showcasing its robust properties.
Career Highlights
Jiro Sakai is currently employed at Sumitomo Chemical Company, Limited, where he continues to push the boundaries of polymer science. His work has not only contributed to the company's portfolio but has also advanced the industry standards for materials used in various applications.
Collaborations
Sakai has collaborated with notable coworkers, including Kazuki Wakamatsu and Tomohisa Fukao. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Jiro Sakai's contributions to the field of crystalline polypropylene exemplify the impact of dedicated inventors in advancing material science. His patents reflect a commitment to innovation and excellence in engineering.