Koji Tsukagoshi

Title: Koji Tsukagoshi: Innovator in Optical Disk Technology

Introduction

Koji Tsukagoshi is a prominent inventor based in Fukaya, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 2 patents. His work focuses on enhancing the performance and efficiency of optical recording and reproducing devices.

Latest Patents

Tsukagoshi's latest patents include a method of controlling the focus of optical disk recording and reproducing devices. This invention involves measuring the thickness of a spacer section between recording layers and setting an amount of defocus based on this measurement. It allows for precise focus servo operations to ensure optimal laser light targeting on the second recording layer. Another notable patent is related to tilt control for optical disc recording and playback apparatus. This invention captures DC voltage values at various positions on a disc and establishes a relationship between these values and the positions. This data is stored in a memory circuit and utilized during recording or playback to enhance the accuracy of the tilt adjustment.

Career Highlights

Koji Tsukagoshi has been associated with Sanyo Electric Co., Ltd., where he has contributed to various innovative projects. His expertise in optical technology has positioned him as a key figure in the development of advanced recording devices.

Collaborations

Throughout his career, Tsukagoshi has collaborated with notable colleagues, including Tsuyoshi Yamamoto and Hideki Osawa. These partnerships have fostered a creative environment that has led to groundbreaking advancements in optical technology.

Conclusion

Koji Tsukagoshi's contributions to optical disk technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the efficiency and effectiveness of optical recording devices.