Company Filing History:
Years Active: 1986-2011
Title: The Innovations of Osamu Kawakubo
Introduction
Osamu Kawakubo is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 10 patents. His work primarily focuses on signal detection devices and optical recording mediums, showcasing his expertise in advanced technologies.
Latest Patents
Kawakubo's latest patents include a signal detecting device and a signal detecting method. This innovative device features a semiconductor substrate and a near-field light generating section that produces near-field light near the interface with the semiconductor substrate. Additionally, it incorporates a light source that outputs light with a wavelength corresponding to photon energy about half as large as the band-gap energy of the semiconductor material. The current detecting unit is designed to detect photocurrent generated in the semiconductor substrate when near-field light is produced.
Another notable patent involves initializing a phase-changing optical recording medium using a laser equipped with a high-speed shutter. This apparatus allows for the initialization of an optical recording medium with stability and ease, without the need for focus servo means. The laser beam emitted from the source is directed at a recording layer in an amorphous state, transforming it into a crystalline state, which is essential for recording and reproducing information signals.
Career Highlights
Osamu Kawakubo has had a distinguished career at Sony Corporation, where he has been instrumental in developing cutting-edge technologies. His innovative approaches have led to advancements in both signal detection and optical recording mediums, making significant impacts in the industry.
Collaborations
Kawakubo has collaborated with notable colleagues, including Toshiyuki Kashiwagi and Koichi Yasuda. Their combined expertise has contributed to the successful development of various technologies and patents.
Conclusion
Osamu Kawakubo's contributions to the field of semiconductor technology and optical recording mediums highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving signal detection and recording processes, making him a key figure in his field.