Makoto Itagaki

Title: Makoto Itagaki: Innovator in Optical Disc Technology

Introduction

Makoto Itagaki is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical disc technology, holding a total of 3 patents. His work focuses on improving the methods for recording and reproducing information on optical discs.

Latest Patents

One of Itagaki's latest patents is an optical disc apparatus and method for recording and reproducing information to and from an optical disc. This invention includes the discrimination of the optical disc and reading control information in an un-recordable area formed in the inner periphery of the optical disc. Itagaki's method conducts focus control based on a focus error signal in a recordable area formed outside of the un-recordable area. Additionally, it determines an optimum offset value of the focus error signal in the recordable area. The process involves adjustments in amplitude of a reproduced signal from both the inner and outer peripheries of the recordable area. Test-writing is conducted in both areas to ensure that the optical disc is in a reproducible and recordable condition.

Career Highlights

Throughout his career, Makoto Itagaki has worked with prominent companies, including Hitachi, Ltd. His experience in these organizations has contributed to his expertise in optical disc technology and innovation.

Collaborations

Itagaki has collaborated with notable individuals in his field, including Shigeki Yamazaki and Hiroyuki Minamura. These collaborations have likely enhanced his work and contributed to the advancements in optical disc technology.

Conclusion

Makoto Itagaki's contributions to optical disc technology through his patents and collaborations highlight his role as an innovator in this field. His work continues to influence the way information is recorded and reproduced on optical discs.