Company Filing History:
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Years Active: 2004-2008
Title: Innovations of Toshifumi Ohkubo
Introduction
Toshifumi Ohkubo is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of magneto-optical recording technology. With a total of 3 patents to his name, his work has advanced the capabilities of data storage and retrieval.
Latest Patents
Ohkubo's latest patents include a magneto-optical recording medium and a manufacturing method thereof, as well as a magneto-optical data recording and playback device. The magneto-optical recording medium features a recording layer and a reflective layer on a substrate. The recording layer consists of a layered structure that includes at least one spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer. This layered structure is ideally formed on tracks where data are recorded. The manufacturing method involves heat treatment in the range of 500-700°C, preferably between 600-630°C, after the formation of the recording layer. The magneto-optical recording and playback device is designed to record and play back data, utilizing different wavelengths of light for recording and reading data, which is particularly beneficial for a magneto-optical recording medium that includes a garnet ferrite layer.
Career Highlights
Throughout his career, Toshifumi Ohkubo has worked with prominent organizations such as Nippon Telegraph and Telephone Corporation and the National Center for Scientific Research. His experience in these institutions has allowed him to refine his expertise in magneto-optical technologies.
Collaborations
Ohkubo has collaborated with notable colleagues, including Manabu Yamamoto and Takaya Tanabe. Their joint efforts have contributed to the advancement of innovative technologies in the field.
Conclusion
Toshifumi Ohkubo's contributions to magneto-optical recording technology have established him as a significant figure in the field of innovation. His patents reflect a commitment to enhancing data storage solutions, and his collaborations further underscore the importance of teamwork in technological advancements.