Company Filing History:
Years Active: 2003-2004
Title: Shunji Yunoki: Innovator in Polypropylene Resin Technology
Introduction
Shunji Yunoki is a prominent inventor based in Sapporo, Japan. He has made significant contributions to the field of polymer science, particularly in the development of polypropylene-based resin compositions. With a total of 2 patents, his work has advanced the capabilities of materials used in various applications.
Latest Patents
Yunoki's latest patents include a polypropylene-based resin composition for stretched film and a process for producing the same. The first patent describes a resin composition that comprises 20 to 98 parts by weight of a propylene-based polymer (A) with an intrinsic viscosity of 1.8 to 8 dl/g and a melting temperature of 140 to 165 °C. It also includes 2 to 80 parts by weight of a propylene-based polymer (B) with an intrinsic viscosity of 0.8 to 1.7 dl/g and a melting temperature of 150 to 170 °C. The specific ratios of these components are designed to optimize the melt flow rate, which ranges from 0.1 to 20 g/10 min.
The second patent focuses on a polypropylene resin composition that has a melt flow rate of 0.5 to 20 g/10 min. This composition consists of 20 to 98 parts by weight of a propylene-based polymer (A) with an intrinsic viscosity of 2.0 to 5 dl/g and a melting point of 140 to 162 °C, along with 2 to 80 parts by weight of a propylene-based polymer (B) with an intrinsic viscosity of 0.80 to 1.8 dl/g and a melting point of 160 to 166 °C. This innovation is crucial for enhancing the performance of polypropylene materials in various industrial applications.
Career Highlights
Shunji Yunoki is currently employed at Sumitomo Chemical Company, Limited, where he continues to innovate in the field of chemical engineering. His expertise in polymer technology has positioned him as a key figure in the development of advanced materials.
Collaborations
Yunoki has collaborated with notable colleagues, including Takeshi Ebara and Yoichi Obata. Their combined efforts have contributed to the advancement of polypropylene resin technologies.
Conclusion
Shunji Yun
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.