This inventor holds 3 USPTO granted patents. Top assignees: Aisin Seiki Kabushiki Kaisha, Aisin Kako Kabushiki Kaisha, Aisin Seiki Company, Ltd.. Active years: 1981-1983.
Location History:
- Okazaki, JP (1981 - 1982)
- Aichi, JP (1983)
Company Filing History:
2 out of 5,207 
1 out of 53 
1 out of 79 
Years Active: 1981-1983
Title: Hisami Tsujio: Innovator in Friction Material Technology
Introduction
Hisami Tsujio is a notable inventor based in Okazaki, Japan. She has made significant contributions to the field of friction materials, particularly in developing alternatives to asbestos fibers. With a total of 3 patents, her work has been instrumental in advancing safer and more efficient materials for various applications.
Latest Patents
One of her latest patents is a method for making friction material without asbestos fibers. This innovative process involves several steps, including impregnating a fiber base material with a heat-stable binder, shaping the material, and applying pressure and heat treatment in a mold. Another significant patent focuses on a clutch facing design that includes an annular reinforcing plate made of metal, with friction linings bonded to both sides. This design ensures durability and cost-effectiveness while preventing corrosion and pressure differences on the friction surface.
Career Highlights
Throughout her career, Hisami Tsujio has worked with prominent companies such as Aisin Seiki and Aisin Kako. Her experience in these organizations has allowed her to refine her expertise in friction materials and contribute to various innovative projects.
Collaborations
Some of her notable coworkers include Yasuhiro Matsumoto and Toshiaki Sakabe. Their collaboration has likely fostered a creative environment that encourages innovation and the development of new technologies.
Conclusion
Hisami Tsujio's contributions to the field of friction materials highlight her commitment to innovation and safety. Her patents reflect a dedication to creating effective alternatives to traditional materials, paving the way for advancements in the industry.