Location History:
- Iruma, JP (2007 - 2009)
- Saitama, JP (2009 - 2011)
Company Filing History:
4 out of 2,636 
2 out of 227 
Years Active: 2007-2011
Title: The Innovative Mind of Youji Maruyama: A Pioneer in Magnetic Head Technology
Introduction
Youji Maruyama, an accomplished inventor based in Saitama, Japan, has made significant contributions to the field of magnetic storage technology. With a total of six patents to his name, Maruyama's innovations have greatly improved the efficiency and functionality of magnetic heads used in data storage devices.
Latest Patents
Among his recent inventions is a groundbreaking magnetic head for perpendicular recording. This design features pole pieces placed on the surface of soft magnetic films, aimed at minimizing leakage magnetic fields from these films, which can adversely affect performance. The design also addresses thermal deformation, ensuring that the soft magnetic films maintain their shape and effectiveness during operation.
In another notable patent, Maruyama developed a magnetic head that reduces the broadening of write-field distribution in the track-width direction without compromising write-field intensity. This invention is characterized by a main pole featuring a pole tip that specifies the write track-width, and includes magnetic films oriented in different track-width directions. The innovative throat height design further enhances performance by optimizing the elements' height in relation to the air bearing surface.
Career Highlights
Youji Maruyama's professional journey has been marked by his tenure at renowned companies such as Hitachi Global Storage Technologies Netherlands B.V. and Hitachi Global Storage Technologies Japan, Ltd. During his time at these organizations, he played a crucial role in propelling advancements in magnetic data storage solutions, establishing himself as a respected figure in the industry.
Collaborations
Maruyama's work has also involved collaboration with esteemed colleagues, including Kazue Kudo and Gen Oikawa. Their combined expertise and innovative spirit have contributed to the successful development of pioneering technologies in the realm of magnetic storage.
Conclusion
Youji Maruyama's contributions to magnetic head technology exemplify the impact of innovation in the ever-evolving field of data storage. His patents not only demonstrate his technical prowess but also highlight his commitment to enhancing magnetic recording methods. As technology continues to advance, Maruyama's inventions stand as a testament to the power of innovation and collaboration in driving progress in the industry.