Company Filing History:
2 out of 2,916 
1 out of 52,751 
Years Active: 1983-1985
Title: Katuya Kumagai: Innovator in Magnetic Recording Technology
Introduction
Katuya Kumagai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 3 patents. His work has been influential in advancing the capabilities of magnetic recording media.
Latest Patents
Kumagai's latest patents include innovative designs for magnetic recording media. One of his patents discloses a magnetic recording medium that comprises magnetic particles and a phosphate represented by a specific formula. This formula includes various alkyl groups and a group of HO--, ensuring that at least one component is a group of R.sup.4 O--CH.sub.2 CH.sub.2 O--. Another patent details a magnetic recording medium that features a substrate with a first magnetic layer and a second magnetic layer made from ferrite series powder.
Career Highlights
Throughout his career, Katuya Kumagai has worked with prominent companies in the technology sector. He has been associated with Tokyo Shibaura Denki Kabushiki Kaisha and Toshiba Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnetic recording technology.
Collaborations
Kumagai has collaborated with notable colleagues, including Akio Ishizawa and Shozo Hideyama. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Katuya Kumagai is a distinguished inventor whose work in magnetic recording technology has led to several important patents. His contributions continue to influence the industry and showcase the importance of innovation in technology.