Location History:
- Yokohama, JP (1992 - 1997)
- Yawara, JP (2003)
- Kamakura, JP (2001 - 2008)
Company Filing History:
11 out of 1,112 
8 out of 42,485 
1 out of 227 
Years Active: 1992-2008
Title: Innovations in Magnetic Recording by Satoshi Matsunuma
Introduction
Satoshi Matsunuma is a prominent inventor based in Kamakura, Japan, recognized for his significant contributions to magnetic recording technology. With a portfolio of 21 patents, Matsunuma's innovations have had a profound impact on the efficiency and effectiveness of data storage solutions in the modern world.
Latest Patents
Among his latest patents, Matsunuma has developed a magnetic recording medium and a magnetic recording apparatus that utilize a perpendicular magnetic recording system. His innovative approach includes a substrate, a back layer made of soft magnetic material, an in-plane magnetized layer, and a recording layer with perpendicular magnetization. This design effectively reduces the influence of mirror image effects of the soft magnetic back layer across a wide range of recording densities, thereby enhancing resolution by reconciling differences in reproduction outputs at both low and high recording densities.
Additionally, another patent details a similar magnetic recording medium that incorporates an underlayer and a recording layer composed primarily of CoPtCr and oxides. This multi-layer design with varying oxide contents enhances magnetic characteristics while minimizing medium noise, making it a crucial development for modern data storage applications.
Career Highlights
Satoshi Matsunuma has been associated with reputable companies such as Hitachi Maxell, Limited and Hitachi, Ltd., where he made significant strides in the field of magnetic technologies. His dedication and innovation have not only earned him numerous patents but have also positioned him as a key figure in advancing recording mediums.
Collaborations
Throughout his career, Matsunuma has worked alongside notable coworkers, including Akira Yano and Tetsunori Koda. Together, they contributed to various projects that paved the way for significant advancements in magnetic recording technologies.
Conclusion
Satoshi Matsunuma continues to be an influential inventor in the field of magnetic recording. His innovative patents and collaborations underline his commitment to enhancing data storage technologies, shaping the future of this ever-evolving industry. As he builds upon his existing work, Matsunuma's contributions will undoubtedly remain integral to advancements in magnetic recording systems.
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.