This inventor holds 5 USPTO granted patents. Top assignees: Kabushiki Kaisha Kobe Seiko Sho, Kobe Steel USA, Inc.. Active years: 1992-1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Mohka, JP (1992)
- Kobe, JP (1993 - 1994)
Company Filing History:
5 out of 1,102 
1 out of 37 Years Active: 1992-1994
Title: Motoharu Sato: Innovator in Magnetic Disk Technology
Introduction
Motoharu Sato is a distinguished inventor based in Kobe, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of 5 patents. His innovative approaches have paved the way for advancements in data storage solutions.
Latest Patents
One of Sato's latest patents is a manufacturing method of a magnetic disk. The objective of this invention is to create a magnetic disk with a high coercive force. The process involves forming a Cr under layer, a magnetic layer of a Co alloy, and a protective Zr layer on a substrate. The disk undergoes heat processing at temperatures exceeding 250 degrees Celsius, which transforms the Zr layer into an oxide layer that serves as a protective barrier. This method effectively prevents the formation of a chemical compound between Zr and non-magnetic elements in the magnetic layer, thereby enhancing the magnetic interactions within the disk.
Another notable patent is related to an amorphous carbon substrate for magnetic disks. In this invention, the surface of a blank for a textured amorphous carbon substrate is polished to achieve a specific surface roughness. The polished blank is then heated in an oxidizing atmosphere, creating minute irregularities on the surface. This results in a randomly textured amorphous carbon substrate, which is crucial for improving the performance of magnetic disks.
Career Highlights
Throughout his career, Motoharu Sato has worked with prominent companies such as Kabushiki Kaisha Kobe Seiko Sho and Kobe Steel USA, Inc. His experience in these organizations has contributed to his expertise in the field of magnetic disk technology.
Collaborations
Sato has collaborated with notable colleagues, including Yoshihiko Onishi and Kazuo Muramatsu. Their combined efforts have further advanced the innovations in magnetic disk technology.
Conclusion
Motoharu Sato's contributions to magnetic disk technology through his patents and collaborations have significantly impacted the industry. His innovative methods continue to influence advancements in data storage solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile