Location History:
- Saitama, JP (1989 - 2001)
- Saitama-ken, JP (2001 - 2002)
- Tokorozawa, JP (1999 - 2004)
Company Filing History:
6 out of 2,861 
4 out of 2,648 
1 out of 30 Years Active: 1989-2004
Title: The Innovations of Hideyo Kamiyama
Introduction
Hideyo Kamiyama is a notable inventor based in Tokorozawa, Japan. He has made significant contributions to the field of optical disc technology, holding a total of 11 patents. His work has been instrumental in advancing the functionality and reliability of optical disc systems.
Latest Patents
One of Kamiyama's latest patents is the "Track-jump controlling apparatus and method." This invention focuses on controlling track-jump operations over disks that comply with various DVD data formats. The apparatus includes a quad photodetector with quadrants, a DPDTE signal generator for producing DPD tracking error signals, a push-pull signal generator, and a TZC signal generator. This system is designed to prevent failures in obtaining proper TZC signals during seek operations, particularly with DVD-RW discs that may involve unrecorded areas.
Another significant patent is the "System for discriminating optical discs." This invention utilizes a laser beam that is focused at specific positions along the optical axis of the optical pickup, which corresponds to different disc thicknesses. The system includes a photodetector that receives the reflected laser beam and generates a focus error signal. By detecting differences in focus error signals caused by variations in disc thickness, the system can effectively discriminate between different types of optical discs.
Career Highlights
Throughout his career, Hideyo Kamiyama has worked with prominent companies in the electronics industry, including Pioneer Electronic Corporation and Pioneer Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.
Collaborations
Kamiyama has collaborated with several talented individuals in his field, including Akira Kawakami and Yasunari Kawahara. These collaborations have contributed to the advancement of optical disc technology and have helped bring his innovative ideas to fruition.
Conclusion
Hideyo Kamiyama's contributions to optical disc technology through his patents and collaborations have significantly impacted the industry. His innovative solutions continue to enhance the functionality and reliability of optical disc systems.