Location History:
- Ube, JP (1989 - 2004)
- Yamaguchi, JP (1994 - 2004)
Company Filing History:
10 out of 1,432 
1 out of 8,213 
Years Active: 1989-2004
Title: Innovations of Tatsuo Tsumiyama
Introduction
Tatsuo Tsumiyama is a prominent inventor based in Ube, Japan. He has made significant contributions to the field of materials science, particularly in the development of polyimide-based composites. With a total of 10 patents to his name, Tsumiyama's work has had a considerable impact on various industries.
Latest Patents
One of his latest innovations is the polyimide/metal composite sheet. This composite is composed of a metal film and a polyimide film, which is prepared through the reaction of asymmetric biphenyltetracarboxylic acid dianhydride and 1,3-bis(4-aminophenoxy)benzene. The polyimide film is firmly bonded to the metal film, making it difficult to peel apart. Additionally, the polyimide film can contain a solid filler, enhancing its properties. Another notable patent is the process for the production of metal-encased polyimide molded bodies. This process involves several steps, including molding a polyimide resin powder under high pressure, calcination at elevated temperatures, vacuum encapsulation into a metal capsule, and isotropic hot compression in an inert gas atmosphere. The resulting polyimide molded bodies exhibit a density range of 1.44-1.38 g/cm³.
Career Highlights
Throughout his career, Tatsuo Tsumiyama has worked with notable companies such as Ube Industries, Inc. and Yazaki Corporation. His experience in these organizations has allowed him to refine his expertise in materials development and innovation.
Collaborations
Tsumiyama has collaborated with several talented individuals in his field, including Satoru Nakamoto and Toshiro Shimada. These collaborations have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Tatsuo Tsumiyama's contributions to the field of materials science, particularly through his innovative patents, have established him as a key figure in the industry. His work continues to influence advancements in polyimide-based technologies.