Location History:
- Toyokawa, JP (1978)
- Yokohama, JP (1997 - 1999)
- Chigasaki, JP (1999)
Company Filing History:
Years Active: 1978-1999
Title: Ryuichi Koike: Innovator in Optical Disc Technology
Introduction
Ryuichi Koike is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical disc technology, holding a total of 6 patents. His work focuses on improving the efficiency and reliability of disk reproducing systems.
Latest Patents
One of Koike's latest patents is a disk reproducing speed control method and apparatus. This invention addresses the issue of excessive heat generation in the pickup actuator when a disk exhibits large eccentricity or planar vibration during high-speed reproduction. The system includes a status determining arrangement that monitors the actuator's drive state, an analyzing arrangement that evaluates the output signal, and a rotational speed control arrangement that adjusts the reproducing speed based on the identified conditions. This innovation allows for high-speed reproduction when conditions are optimal while automatically reducing the speed to prevent overheating when necessary. Another notable patent is a playback system for an optical disc that features a character or graphic pattern. This system ensures that illegal copies of the CD-ROM are easily identifiable due to the unique arrangement of pit patterns, which become deformed in unauthorized reproductions.
Career Highlights
Ryuichi Koike has had a successful career at Hitachi, Ltd., where he has been instrumental in developing advanced optical technologies. His inventions have not only enhanced the performance of optical disc systems but have also contributed to the security of digital media.
Collaborations
Throughout his career, Koike has collaborated with notable colleagues, including Tamotsu Ito and Hiroshi Banno. These partnerships have fostered innovation and have led to the development of cutting-edge technologies in the optical disc industry.
Conclusion
Ryuichi Koike's contributions to optical disc technology have made a significant impact on the industry. His innovative patents demonstrate his commitment to improving the efficiency and security of disk reproduction systems. His work continues to influence advancements in this field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.