Location History:
- Kokubunji, JP (1986)
- Toride, JP (1989 - 1996)
- Ibaraki, JP (1991 - 1996)
Company Filing History:
9 out of 1,112 
4 out of 42,485 
1 out of 56 Years Active: 1986-1996
Title: The Innovative Contributions of Osamu Kitakami
Introduction
Osamu Kitakami is a prominent inventor based in Toride, Japan, known for his significant contributions to the field of magnetic recording technology. With a total of 11 patents to his name, Kitakami has made remarkable advancements that have influenced the industry.
Latest Patents
Among his latest patents, Kitakami has developed a magnetic recording medium that features a non-magnetic substrate and a soft magnetic layer. This layer can be formed with or without a non-magnetic sublayer, and it includes a perpendicular magneto-anisotropic recording layer. The soft magnetic layer is composed of materials with a saturation magnetization higher than that of the recording layer, with a thickness ranging from 50 to 1,000 angstroms. Another notable patent involves a magnetic recording medium where the magnetic layer is primarily composed of cobalt and oxygen. This medium has a principal axis of magnetic anisotropy that rises unidirectionally at an angle between 20 and 80 degrees to the non-magnetic substrate surface. The coercive force on the surface side of the magnetic layer ranges from 600 to 2,000 Oe, while the coercive force on the substrate interfacial side is less than 600 Oe. This medium is produced by treating a non-magnetic substrate surface with plasma in an inert gas or oxygen atmosphere, followed by the deposition of a cobalt-based alloy.
Career Highlights
Throughout his career, Osamu Kitakami has worked with notable companies such as Hitachi Maxell, Limited and Hitachi, Ltd. His work has been instrumental in advancing magnetic recording technologies, making him a key figure in the industry.
Collaborations
Kitakami has collaborated with esteemed colleagues, including Hideo Fujiwara and Hideo Daimon, contributing to various innovative projects and patents.
Conclusion
Osamu Kitakami's contributions to magnetic recording technology have established him as a significant inventor in his field. His innovative patents and collaborations reflect his dedication to advancing technology and enhancing the capabilities of magnetic recording mediums.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.