Company Filing History:
Years Active: 1981-1983
Title: Innovations of Yoshiteru Urino in Magnetic Head Technology
Introduction
Yoshiteru Urino is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic recording technology. With a total of two patents to his name, Urino's work focuses on enhancing the performance of magnetic heads used in tape recording and reproducing apparatus.
Latest Patents
Urino's latest patents include the development of a Mn-Zn single crystalline ferrite head and a method of making the same. This innovative magnetic head utilizes Mn-Zn single crystalline ferrite for the tip core or front portion of the head core where an air gap is formed. The invention allows for different phases to be locally precipitated only at the region including the air gap, which is crucial during the recording and reproducing operation. The output of the head is significantly increased while keeping the ferrite noise inherent in single crystalline ferrite heads at a low level. This is a notable improvement compared to conventional single crystalline ferrite heads, where precipitation of different phases is not limited to the specified region. The manufacturing method involves disposing a masking film or coating of metal or oxide over the entire surfaces of the head core, except for the designated region, and treating the core at a temperature of 1,000°C to 1,200°C under an atmosphere with an oxygen density of less than 3%.
Career Highlights
Yoshiteru Urino is currently employed at Akai Electric Co., Ltd., where he continues to innovate in the field of magnetic technology. His work has been instrumental in advancing the capabilities of magnetic recording devices.
Collaborations
Urino has collaborated with notable coworkers, including Hisashi Watanabe and Shinichi Aotsu. Their combined expertise has contributed to the successful development of advanced magnetic head technologies.
Conclusion
Yoshiteru Urino's contributions to magnetic head technology demonstrate his innovative spirit and commitment to enhancing recording devices. His patents reflect a deep understanding of materials and engineering, paving the way for future advancements in the field.