Shigekazu Otomo

Title: Shigekazu Otomo: A Pioneer in Magnetic Head Innovation

Introduction

Shigekazu Otomo, based in Sayama, Japan, is a renowned inventor notable for his remarkable contribution to the field of magnetic technologies. With a total of 35 patents credited to his name, he has made significant advancements in the design and functionality of recording and reproducing devices. His innovative spirit and technical expertise make him a prominent figure in the industry.

Latest Patents

Among his latest patents, Otomo has developed a revolutionary **recording/reproducing separated type magnetic head** featuring a differential bias type magnetic domain control structure. This invention includes a first magnetic domain control layer that aligns the magnetizing direction of a free layer in a magneto-resistive element to a specified orientation. A second magnetic domain control layer generates a magnetic field in the opposing direction, achieving a differential bias structure. This innovation effectively reduces an excessively strong longitudinal bias magnetic field during narrow track width recording while maintaining the fixed magnetic field of the magneto-resistive element.

Another notable patent involves a **soft magnetic thin film** along with its application in a magnetic head and magnetic recording device. This advanced recording head is designed to record data on a media using a thin film made of specific metal compounds. This invention enhances corrosion resistance without significantly compromising key magnetic characteristics such as saturation and coercive force. It includes provisions for creating a recording medium that utilizes this advanced thin film technology.

Career Highlights

Otomo has held influential positions at notable companies, including **Hitachi, Ltd.** and **Hitachi Metals, Ltd.**, where his innovative contributions have propelled forward the capabilities of magnetic recording technologies. His dedication to research and development at these institutions has played a crucial role in shaping modern advancements in the field.

Collaborations

Throughout his distinguished career, Shigekazu Otomo has worked alongside esteemed colleagues like **Noriyuki Kumasaka** and **Takeo Yamashita**. Their collaborative efforts have contributed to numerous breakthroughs within the magnetic technology landscape, reinforcing the significance of teamwork in driving innovation.

Conclusion

Shigekazu Otomo's remarkable portfolio of patents and his extensive experience in the field of magnetic technology underline his status as a venerated inventor. His contributions not only advance the functionality of recording devices but also inspire future innovations in the industry. Otomo’s legacy continues to influence the development of magnetic technologies, ensuring that his impact will be felt for years to come.