Location History:
- Shinagawa-Ku, JP (2004)
- Kanagawa, JP (2003 - 2008)
Company Filing History:
Years Active: 2003-2008
Title: Toshio Morizumi: Innovator in Optical Recording Technology
Introduction
Toshio Morizumi, an accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of optical recording technology. With a notable portfolio of four patents, his innovations focus on enhancing the efficiency and reliability of data recording and retrieval processes.
Latest Patents
Among his latest patents, Morizumi developed an optical recording apparatus and a method for controlling laser power by filtering and then sampling a returned light signal. This technique involves initiating writing, then sampling an output signal from a low pass filter (LPF) corresponding to a portion of the recording data. The aim is to achieve an optimal pit level, ensuring high-quality data writing.
Additionally, he invented a data recording device and data reproducing device. This system employs a CIRC encoder that utilizes two interleavers with different delay parameters, which are switched according to the recording density of the optical disc. This innovation allows for effective error correction coding and supports higher recording density while preserving compatibility with existing optical disc formats.
Career Highlights
Toshio Morizumi has had a profound impact on the optical technology landscape during his tenure at Sony Corporation. His dedication to research and development has enabled him to push the boundaries of data storage and retrieval methods, making significant advancements in the way data is recorded on optical discs.
Collaborations
Throughout his career, Morizumi has collaborated with notable colleagues such as Eiji Kumagai and Kenji Nagashima. Together, they have fostered a creative environment that emphasizes teamwork and shared innovation in the pursuit of cutting-edge technology.
Conclusion
In conclusion, Toshio Morizumi's inventive spirit and commitment to advancing optical recording technology have revolutionized the industry. His contributions through his patents reflect a deep understanding of the challenges in data storage and retrieval, and his work serves as an inspiration for future innovations in the field.