Company Filing History:
Years Active: 1989-2004
Title: Eiichi Yonezawa: Innovator in Magnetic Recording Technology
Introduction
Eiichi Yonezawa is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 3 patents. His work focuses on improving the efficiency and reliability of magnetic recording mediums.
Latest Patents
Yonezawa's latest patents include a method of demagnetizing and transferring magnetization in a magnetic recording medium. This innovative method allows for a symmetrical transferred signal waveform of equal magnitude with good reproducibility. It performs magnetic transfer with high reliability. The process involves applying an AC magnetic field, which changes polarity in the perpendicular direction, to the recording surface of the magnetic recording layer. The intensity of the AC magnetic field is gradually decreased over time to demagnetize the entire magnetic recording layer.
Another significant patent is a linear step motor type driving apparatus designed for driving a horizontally-moving vertically-suspended body, such as a curtain. This driving assembly features a moving element within a channel of a rail, equipped with an electromagnet that operates on discrete pulses or continuous current. The coils of the electromagnet generate a magnetomotive force that facilitates the movement of the element within the channel.
Career Highlights
Eiichi Yonezawa is currently employed at Fuji Electric Co., Ltd., where he continues to develop innovative technologies in magnetic recording. His expertise and contributions have positioned him as a key figure in his field.
Collaborations
Yonezawa has collaborated with notable coworkers, including Masahiro Ohsawa and Akira Saito. Their combined efforts have further advanced the research and development of magnetic recording technologies.
Conclusion
Eiichi Yonezawa's work in magnetic recording technology exemplifies innovation and dedication. His patents reflect a commitment to enhancing the reliability and efficiency of magnetic recording mediums. His contributions continue to influence the industry and inspire future advancements.