This inventor holds 7 USPTO granted patents and 3 EPO patents. Top assignees: Mitsubishi Heavy Industries Limited, Nec Corporation, Zeon Corporation. Active years: 1998-2019.
Location History:
- Kobe, JP (2007)
- Hyogo, JP (2011)
- Tokyo, JP (1998 - 2019)
Company Filing History:
3 out of 4,735 
2 out of 36,624 
2 out of 1,288 
Years Active: 1998-2019
Title: Kenji Umeda: Innovator in Optical Polymers
Introduction
Kenji Umeda is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical polymers, holding a total of 7 patents. His work focuses on innovative materials that enhance optical performance and functionality.
Latest Patents
Among his latest patents are the cyclic olefin ring-opened polymer hydride and resin molded articles. One notable invention is a hydrogenated cycloolefin ring-opening polymer that comprises a repeating unit derived from tetracyclododecene, along with a repeating unit derived from an additional norbornene-based monomer. Another significant patent involves an optical polymer and optical element that satisfy a specific expression related to melt viscosity, ensuring optimal performance in various applications.
Career Highlights
Kenji Umeda has had a distinguished career, working with leading companies such as Mitsubishi Heavy Industries Limited and Zeon Corporation. His expertise in polymer science has allowed him to develop cutting-edge technologies that are widely recognized in the industry.
Collaborations
Throughout his career, Umeda has collaborated with talented individuals, including Ayumi Sato and Katsuyuki Nakayama. These partnerships have contributed to the advancement of his research and the successful development of his inventions.
Conclusion
Kenji Umeda's innovative work in optical polymers and his impressive portfolio of patents highlight his significant impact on the field. His contributions continue to influence advancements in material science and optical technology.