Company Filing History:
2 out of 327 
1 out of 29 Years Active: 1999-2002
Title: Yuka Umeshima: Innovator in Polyolefin Technology
Introduction
Yuka Umeshima is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of polyolefin technology, holding a total of 3 patents. Her work focuses on the development of advanced materials that have a wide range of applications.
Latest Patents
Umeshima's latest patents include innovative formulations such as the Ethylene-α-olefin copolymer and composition, as well as a film, laminate, and electrical insulating material comprising the same. Another notable patent is the Ethylene-.alpha.-olefin copolymer and composition, which details a polyolefin resin composition containing an ethylene-.alpha.-olefin copolymer with specific properties. These properties include a density ranging from 0.86 to 0.96 g/cm3, a melt flow rate of 0.01 to 200 g/10 min, and a molecular weight distribution of 1.5 to 4.5.
Career Highlights
Throughout her career, Umeshima has worked with leading companies in the industry, including Nippon Petrochemicals Company, Limited and Japan Polyolefins Co., Ltd. Her expertise in polymer science has positioned her as a key player in the development of new materials.
Collaborations
Umeshima has collaborated with notable colleagues such as Hideo Watanabe and Masahiko Sato. These partnerships have further enhanced her research and innovation in the field.
Conclusion
Yuka Umeshima's contributions to polyolefin technology exemplify her dedication to innovation and excellence. Her patents reflect her commitment to advancing material science, making her a significant figure in her field.