Location History:
- Kanagawa, JP (1992)
- Yokohama, JP (1986 - 2004)
Company Filing History:
Years Active: 1986-2004
Title: Hideo Ohnuki: Innovator in Laser Drive Technology
Introduction
Hideo Ohnuki is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 6 patents. His work focuses on enhancing the performance and efficiency of laser drive integrated circuits and optical disk apparatuses.
Latest Patents
Ohnuki's latest patents include innovative designs for laser drive integrated circuits and optical disk apparatuses. One of his notable inventions is a laser drive integrated circuit that forms high-density marks on optical disks. This apparatus features a drive waveform information storage unit that stores information for driving a laser diode in response to a binary recording signal. Additionally, it includes a drive waveform decoder that decodes the drive waveform based on the stored information. This technology allows for adaptable recording strategies that can adjust to variations in recording media, while also minimizing signal distortion.
Another significant patent involves a laser drive circuit that comprises a first and second current supply unit. These units supply drive currents to laser diodes based on a generated drive waveform signal. The circuit is designed to selectively supply the drive waveform signal to either current supply unit, enhancing the flexibility and efficiency of the laser drive system.
Career Highlights
Hideo Ohnuki is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies in the field of optical storage. His work has been instrumental in advancing the capabilities of laser drive systems, making them more efficient and reliable.
Collaborations
Ohnuki has collaborated with notable colleagues such as Akihiro Asada and Masaaki Kurebayashi. These partnerships have contributed to the innovative advancements in laser technology and optical disk systems.
Conclusion
Hideo Ohnuki's contributions to laser drive technology and optical disk apparatuses have made a significant impact in the field. His innovative patents reflect his dedication to enhancing the efficiency and performance of these technologies.