Company Filing History:
1 out of 2 
1 out of 4,920 
Years Active: 1988
Title: Soji Ohara: Innovator in Magnetic Head Technology
Introduction
Soji Ohara is a notable inventor based in Kashihara, Japan. He has made significant contributions to the field of magnetic head technology, particularly through his innovative patent. His work has implications for various applications in electronics and data storage.
Latest Patents
Soji Ohara holds a patent for a method of producing a core for a magnetic head. This invention focuses on achieving a surface roughness of not higher than 2 µm in the side wall of a groove that defines the track width of the core. The method involves subjecting a gapped bar made of ferrite to laser-induced etching under specific conditions. The laser light used has a power range of 50-1,100 mW and a focused beam diameter of not larger than 20 µm. The etching process occurs at a scanning speed of 2-110 µm/sec in a halogen gas- or halide gas-containing atmosphere maintained at a gas pressure of 10-200 Torr. This innovative approach enhances the precision and performance of magnetic heads.
Career Highlights
Throughout his career, Soji Ohara has worked with several companies, including D.S. Scanner Co., Ltd. and NGK Insulators, Inc. His experience in these organizations has contributed to his expertise in the field of magnetic technology.
Collaborations
Soji Ohara has collaborated with notable colleagues such as Shohei Nagatomo and Mikio Takai. Their combined efforts have further advanced the research and development of magnetic head technologies.
Conclusion
Soji Ohara's contributions to the field of magnetic head technology through his innovative patent demonstrate his expertise and commitment to advancing this area of research. His work continues to influence the development of more efficient and precise magnetic heads in various applications.