Company Filing History:
Years Active: 2019-2025
Title: Innovations of Yoshifumi Maruyama
Introduction
Yoshifumi Maruyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of hydrocarbon resins, holding a total of 2 patents. His work focuses on methods that enhance the production and application of these materials.
Latest Patents
Maruyama's latest patents include a method for producing hydrocarbon resin hydride. This method involves hydrogenating a hydrocarbon resin by bringing it into contact with hydrogen in the presence of an antioxidative compound and a hydrogenation catalyst. The antioxidative compound is selected from hindered phenolic antioxidants and antioxidants with a 2,2,6,6-tetraalkyl-4-piperidyl group. Another significant patent is for a modified hydrocarbon resin, which can provide a hot-melt adhesive composition characterized by low odor, low Gardner color, and high peel adhesion. This resin comprises various monomer units and contains a carboxyl group or acid anhydride group, with specific properties defined for its molecular weight and softening point.
Career Highlights
Yoshifumi Maruyama is currently associated with Zeon Corporation, where he continues to innovate in the field of hydrocarbon resins. His expertise has led to advancements that benefit various applications in adhesive technologies.
Collaborations
Maruyama has collaborated with notable coworkers, including Yasushi Hisaoka and Sadaharu Hashimoto. Their combined efforts contribute to the ongoing research and development in their field.
Conclusion
Yoshifumi Maruyama's contributions to hydrocarbon resin technology through his patents and work at Zeon Corporation highlight his role as an influential inventor. His innovative methods and collaborations continue to shape advancements in adhesive applications.