Keiko Shiokawa

Title: Keiko Shiokawa: Innovator in Thin Film Magnetic Head Technology

Introduction

Keiko Shiokawa is a prominent inventor based in Higashiyamato, Japan. She has made significant contributions to the field of magnetic head technology, particularly through her innovative patent. Her work has implications for the efficiency and reliability of magnetic recording devices.

Latest Patents

Keiko Shiokawa holds a patent for a thin film magnetic head that features an improved coil design. The patent describes a structure where the main portion of the coil consists of a copper or copper alloy layer, with its upper surface covered by a thin film mask made of titanium, titanium oxide, chromium, and/or chromium oxide. This design effectively prevents the occurrence of projecting etching residues at the upper edge of the coil, while also enhancing the cross-sectional area and winding density of the coil. Additionally, the inclusion of a titanium diffusion prevention film made of chromium helps maintain the coil's resistance during heat treatment processes, thereby improving the overall reliability of the magnetic head.

Career Highlights

Keiko Shiokawa is associated with Hitachi, Ltd., a leading company in technology and innovation. Her work at Hitachi has allowed her to focus on advancing magnetic head technology, contributing to the company's reputation for excellence in the field.

Collaborations

Throughout her career, Keiko has collaborated with notable colleagues, including Isamu Yuito and Eijin Moriwaki. These collaborations have fostered a productive environment for innovation and have led to significant advancements in their shared field of expertise.

Conclusion

Keiko Shiokawa's contributions to thin film magnetic head technology exemplify her dedication to innovation. Her patent reflects a deep understanding of material science and engineering principles, which enhances the performance of magnetic recording devices. Her work continues to influence the industry and inspire future innovations.