Company Filing History:
Years Active: 1998-2012
Title: Toshiya Murakami: Innovator in Optical Technologies
Introduction
Toshiya Murakami is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of optical technologies, holding a total of 3 patents. His work primarily focuses on advancements in optical recording mediums and sound quality adjustment circuits.
Latest Patents
Murakami's latest patents include an innovative optical recording medium and a reproduction apparatus. This reproduction apparatus is designed for an optical recording medium that features both convex and concave pit recording layers. These layers allow data to be recorded by pit strings, with pits formed at specific depths relative to the laser wavelength. The apparatus includes an optical head section that irradiates laser beams and detects reflected light to read the recorded information. Additionally, it features a tracking error signal generating section, a polarity switching section, and a tracking servo section that performs tracking operations. Another significant patent is a sound quality adjustment circuit that utilizes a status variable type active band-pass filter. This circuit includes an amplification circuit and a controller that adjusts the conversion conductance of the amplification circuit, allowing for continuous variation of the center frequency.
Career Highlights
Toshiya Murakami is currently employed at Sony Corporation, where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the performance and quality of optical devices.
Collaborations
Murakami has collaborated with notable colleagues, including Tsukasa Wadamori and Kazuo Murayama. Their combined expertise has contributed to the successful development of advanced technologies in their field.
Conclusion
Toshiya Murakami's contributions to optical technologies and sound quality adjustment circuits highlight his role as a leading inventor in Japan. His innovative patents and collaborations with esteemed colleagues continue to shape the future of optical recording technologies.