Company Filing History:
2 out of 58,132 
1 out of 832,966 Years Active: 1987-2003
Title: Teruo Chiba: Innovator in Optical Recording Technology
Introduction
Teruo Chiba is a notable inventor based in Miyagi, Japan. He has made significant contributions to the field of optical recording technology, holding a total of 3 patents. His work has been influential in advancing the capabilities of optical media.
Latest Patents
Chiba's latest patents include a design for a spare area with a predetermined capacity for a defective sector allocated in each zone of a rewritable optical recording medium. This innovation involves dividing the recording surface into multiple zones with constant pitch intervals in the radial direction. Each zone is allocated a data area and a spare area, ensuring that the spare ratio remains consistent across zones. Another significant patent is for a magneto-optical disk featuring a four-layer structure. This disk includes a first protective dielectric layer, a recording magnetic layer, a second protective dielectric layer, and a reflective metal layer. The constraints for the film thicknesses of these layers are meticulously determined to optimize both optical and magneto-optical performance.
Career Highlights
Throughout his career, Teruo Chiba has worked with prominent companies, including Sony Corporation. His experience in the industry has allowed him to develop innovative solutions that address the challenges in optical recording technology.
Collaborations
Chiba has collaborated with notable individuals in his field, including Takehiko Numata and Mineo Moribe. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Teruo Chiba's contributions to optical recording technology have established him as a key figure in the field. His innovative patents and collaborations reflect his commitment to advancing technology in this area.