Atsushi Ishimaru

Title: Atsushi Ishimaru: Innovator in Optical Technology

Introduction

Atsushi Ishimaru is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, holding a total of 2 patents. His work primarily focuses on playback devices and optical pickup control methods.

Latest Patents

Ishimaru's latest patents include a playback device and a management information acquiring method. This playback device features a reading section that performs reading from a recording medium, along with a control section that acquires the latest temporary management information recorded last on the recording medium. The control section executes a read control process to ensure that data is read from a predetermined position before the segment containing the pointer information. Additionally, he has developed an optical pickup control apparatus, optical pickup control method, and optical disc apparatus. This invention allows for the adequate and quick adjustment of spherical aberration and focus bias in an optical pickup. By measuring evaluation values at various measurement points, a two-variable function is approximated to optimize the spherical aberration correction and focus bias values.

Career Highlights

Atsushi Ishimaru is currently employed at Sony Corporation, a leading company in the electronics industry. His innovative work has contributed to advancements in optical technology, enhancing the performance of playback devices and optical pickups.

Collaborations

Ishimaru has collaborated with notable coworkers such as Seiichi Sagara and Kenji Yorimoto. Their combined expertise has further propelled the development of cutting-edge technologies in their field.

Conclusion

Atsushi Ishimaru's contributions to optical technology through his patents and work at Sony Corporation highlight his role as an influential inventor. His innovative solutions continue to shape the future of playback devices and optical systems.