Location History:
- Kyoto, JP (2005)
- Yawata, JP (1999 - 2010)
Company Filing History:
Years Active: 1999-2010
Title: **Innovative Contributions of Kiyoshi Sadamitsu in Polymer Technology**
Introduction
Kiyoshi Sadamitsu, an accomplished inventor based in Yawata, Japan, has made significant advancements in the field of polymer technology. With a total of 7 patents to his name, Sadamitsu is recognized for his innovative work that enhances the functionality and quality of materials used in various applications.
Latest Patents
One of Sadamitsu's latest patents focuses on a "Successively Biaxial-Oriented Porous Polypropylene Film and Process for Production Thereof." This invention details a method of producing a biaxially stretched film by extruding a melt of a β-crystal nucleating agent-containing polypropylene-based resin from a T-die. The innovative process includes cooling the extrusion on a chill roll and subsequently stretching the resulting web sheet both longitudinally and transversely. The film produced has a degree of β-crystal orientation of less than 0.3, achieved through specific methods of melting and adjusting neck-in ratios during stretching. Notably, this porous polypropylene film exhibits impressive breakage resistance during manufacturing, excellent thickness uniformity, high porosity, and air permeability, making it particularly useful for battery separators.
Career Highlights
Kiyoshi Sadamitsu has had a notable career at New Japan Chemical Co., Ltd., where he has been instrumental in advancing the company's research and development initiatives. His inventive contributions have significantly improved the company's product offerings in the polymer sector, establishing a strong reputation for quality and innovation.
Collaborations
Throughout his career, Sadamitsu has worked alongside esteemed colleagues, including Naoki Ikeda and Toshiaki Kobayashi. These collaborations have fostered an environment of creative innovation and technical excellence, leading to the successful development of pivotal technologies in the realm of polymer science.
Conclusion
Kiyoshi Sadamitsu's dedication to innovation in polymer technology exemplifies the impact that skilled inventors can have on industry advancements. Through his patents and collaborative efforts, he continues to influence the production of high-quality materials, contributing to the future of battery technology and beyond.
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.