Location History:
- Kanagawa-ken, JP (1997 - 2001)
- Shiroyama, JP (1983 - 2004)
- Tsukui-gun, JP (2000 - 2005)
- Kanagawa, JP (1988 - 2007)
Company Filing History:
10 out of 42,485 
1 out of 1,112 
1 out of 227 
Years Active: 1983-2007
Title: Kazusuke Yamanaka: Innovator in Magnetic Recording Technology
Introduction
Kazusuke Yamanaka is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 12 patents. His work has been instrumental in advancing the capabilities of magnetic recording mediums and devices.
Latest Patents
Yamanaka's latest patents include innovations in magnetic recording mediums and magnetic recording and reproducing apparatuses. One of his notable inventions is a magnetic recording medium that features a substrate, an under-layer, a magnetic layer, and a protective layer. The magnetic layer is composed of cobalt (Co), chromium (Cr), and platinum (Pt), with a thickness ranging from 10 nm to 22 nm. This design ensures a coercivity of not less than 2000 Oe, along with a fluctuation field of magnetic viscosity that is not less than 30 Oe at a field strength equal to remanence coercivity or coercivity. Another significant patent focuses on a magnetic recording medium that utilizes a ferromagnetic thin film, which provides low noise and high signal-to-noise (S/N) value. This medium achieves a fluctuation field of not less than 15 oersteds at 25°C, with a coercivity of not less than 2000 oersteds.
Career Highlights
Throughout his career, Yamanaka has worked with notable companies such as Hitachi, Ltd. and Hitachi Maxell, Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnetic recording technology.
Collaborations
Yamanaka has collaborated with esteemed colleagues, including Masaaki Futamoto and Tomoo Yamamoto. Their combined expertise has contributed to the advancement of magnetic recording technologies.
Conclusion
Kazusuke Yamanaka's contributions to magnetic recording technology are significant and impactful. His innovative patents and collaborations have paved the way for advancements in the field, showcasing his dedication to innovation and excellence.
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.