Keiji Jitsukawa

Title: The Innovative Contributions of Keiji Jitsukawa

Introduction

Keiji Jitsukawa is a notable inventor based in Chiba, Japan, recognized for his significant contributions to the field of recording technology. With a total of eight patents to his name, Jitsukawa has made advancements that enhance the functionality and efficiency of disc drive apparatuses and recording medium delivery mechanisms.

Latest Patents

Among his latest patents are the "Recording Medium Delivery Mechanism" and the "Disc Drive Apparatus and Electronic Apparatus." The recording medium delivery mechanism features a slider, a holding lever, a biasing portion, a lever-opening operation portion, and a housing and discharging drive unit. This innovative design allows for the slider to be movable in housing and discharging directions of a recording medium. The holding lever, which is rotatably supported by the slider, is designed to hold the recording medium securely. The biasing portion ensures that the holding lever is biased toward the recording medium, while the lever-opening operation portion engages with the chassis to rotate the holding lever away from the recording medium when necessary. The housing and discharging drive unit facilitates the movement of the chassis and slider in the required directions.

The disc drive apparatus includes an outer casing, a disc drive unit with a disc table, spindle motor, optical pickup, and pickup base. The slider in this apparatus is designed to move in both insertion and ejection directions, with a drive motor serving as its power source. The eject lever is crucial for pressing the recording medium during ejection, ensuring a smooth operation.

Career Highlights

Jitsukawa has had a distinguished career, working with prominent companies such as Sony Corporation and Sony Computer Entertainment Inc. His work has significantly impacted the development of consumer electronics, particularly in the realm of disc drives and recording technologies.

Collaborations

Throughout his career, Jitsukawa has collaborated with talented individuals, including Kiyoshi Omori and Yuji Suzuki. These collaborations have contributed to the innovative advancements in the technologies he has developed.

Conclusion

Keiji Jitsukawa's contributions to the field of recording technology through his patents and collaborations highlight his role as a leading inventor. His work continues to influence the design and functionality of modern electronic devices.