Company Filing History:
Years Active: 1996-2001
Title: Sigeru Sano: Innovator in Magnetic Disk Technology
Introduction
Sigeru Sano is a prominent inventor based in Fuji, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of 3 patents. His innovative work has advanced the performance and efficiency of magnetic storage devices.
Latest Patents
Sano's latest patents include a magnetic disk featuring a protective layer with a surface that has protrusions. This magnetic disk comprises a substrate, a magnetic layer, and a protective layer. Notably, at least one region of the disk's surface contains protrusions, with heights ranging from 5 nm to 40 nm. The density of these protrusions is between 200/mm and 250,000/mm, while their width in the radial direction varies from 0.1 µm to 10 µm. The design includes discrete protrusions aligned in a spiral direction, with flat areas interspersed between them. This innovative structure enhances the recording and reproducing characteristics of the magnetic disk.
Another of Sano's patents describes a magnetic disk apparatus that includes a magnetic layer and a surface protective layer on a substrate. This apparatus features a magnetic head that operates in close proximity to the rotating magnetic disk, supported by a slider. The design minimizes frictional force, allowing for reduced flying height and improved floating stability. The arrangement of protrusions on the protective layer is tailored to optimize recording density based on the flying height of the magnetic head.
Career Highlights
Sigeru Sano is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has been instrumental in developing advanced magnetic disk technologies that are widely used in data storage solutions.
Collaborations
Sano has collaborated with notable coworkers, including Hideaki Tanaka and Kenichi Gomi. Their combined expertise has contributed to the success of various projects within the realm of magnetic disk technology.
Conclusion
Sigeru Sano's contributions to magnetic disk technology have significantly impacted the field of data storage. His innovative patents and collaborations continue to drive advancements in this essential area of technology.