Location History:
- Ohtsu, JP (1984 - 1997)
- Otsu, JP (1978 - 2003)
Company Filing History:
5 out of 789 
1 out of 776 
Years Active: 1978-2003
Title: Chikara Sugitawa: Innovator in Magnetic Recording Media
Introduction
Chikara Sugitawa is a notable inventor based in Otsu, Japan. He has made significant contributions to the field of magnetic recording media and thermoplastic polyurethane resins. With a total of 5 patents to his name, Sugitawa's work has had a considerable impact on technology and materials science.
Latest Patents
One of Sugitawa's latest patents involves a magnetic recording medium that features a magnetic layer applied onto a non-magnetic support. This magnetic coating contains magnetic particles dispersed in a binder made of a polyurethane resin, along with carbon black particles at a concentration of 5% by weight or higher, based on the weight of the magnetic particles. The polyurethane resin used in this invention is composed of several components, including a polyester polyol and a high molecular weight polyol, among others. Additionally, he has developed a thermoplastic polyurethane composition that includes a polyester polyol, a low molecular weight diol, and an organic diisocyanate, which enhances the material's properties.
Career Highlights
Throughout his career, Chikara Sugitawa has worked with prominent companies such as Toyo Boseki and Kureha Chemical Industry Co., Ltd. His experience in these organizations has allowed him to refine his expertise in materials and innovation.
Collaborations
Sugitawa has collaborated with notable colleagues, including Hiroshi Imanaka and Yoshihiko Kijima. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Chikara Sugitawa's contributions to the field of magnetic recording media and thermoplastic polyurethane resins highlight his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of materials science and a commitment to improving existing technologies.