Location History:
- Osaka, JP (2009)
- Ibaraki, JP (2019)
Company Filing History:
Years Active: 2009-2019
Title: Innovations by Yoshifumi Yamamoto
Introduction
Yoshifumi Yamamoto is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced polarizing films and printed circuit boards. With a total of 2 patents to his name, his work showcases a blend of innovation and practicality.
Latest Patents
Yamamoto's latest patents include a polyvinyl alcohol-based polarizing film containing iodine and boric acid. This polarizing film is distinguished by its excellent optical characteristics, durability, and water resistance. The film features a polyvinyl alcohol-based resin with a thickness of 10 micrometers or less and an iodine concentration of 6.0 wt % or less. The polarizing film also has a defined cross-linking index ranging from 100 to 200, which is calculated using the iodine and boric acid concentrations in the film. Another significant patent involves a printed circuit board design that includes a ground pattern with multiple integrally formed ground lines. This innovative design allows for efficient arrangement and connection of ground lines, forming triangular openings that enhance the board's functionality.
Career Highlights
Yamamoto is currently employed at Nitto Denko Corporation, where he continues to push the boundaries of material innovation. His work at the company has been instrumental in developing products that meet the demands of modern technology.
Collaborations
Yamamoto has collaborated with notable colleagues such as Mitsuru Honjo and Yuki Saitou. Their combined expertise has contributed to the successful development of innovative technologies in their respective fields.
Conclusion
Yoshifumi Yamamoto's contributions to the field of materials science through his patents reflect his dedication to innovation. His work continues to influence advancements in polarizing films and printed circuit boards, showcasing the importance of research and development in technology.