Location History:
- Hadano, JP (1992 - 1998)
- Machida, JP (1999)
- Yokohama, JP (2000)
- Tokyo, JP (1999 - 2002)
Company Filing History:
Years Active: 1992-2002
Title: Masaaki Sofue: Innovator in Optical Disk Technology
Introduction
Masaaki Sofue is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 10 patents. His work has been instrumental in advancing the capabilities of optical disk apparatuses.
Latest Patents
Among his latest patents is a signal operational circuit for a multi-beam pick-up device. This invention provides a large scale integrated circuit (LSI) for calculating servo signals, such as focusing and tracking signals, from the output signals received from multiple photo detectors. This technology is particularly useful in optical disk apparatuses. Another notable patent is for an optical disk apparatus that can read and write information from optical disks of varying thicknesses. This apparatus includes coupling lenses that enhance the focusing capabilities of an objective lens, allowing it to access both standard density and high-density optical disks.
Career Highlights
Masaaki Sofue is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of optical technology. His work has not only advanced the technology but has also contributed to the efficiency and versatility of optical disk systems.
Collaborations
Masaaki has collaborated with notable coworkers such as Tatsuaki Sakurai and Hideo Inuzuka, further enhancing the innovative efforts within his team.
Conclusion
Masaaki Sofue's contributions to optical disk technology through his patents and work at Ricoh Company, Ltd. highlight his role as a key innovator in the field. His inventions continue to shape the future of optical data storage and retrieval.