Company Filing History:
Years Active: 2000-2010
Title: Joji Kasai: Innovator in Audio Signal Processing
Introduction
Joji Kasai is a prominent inventor based in Neyagawa, Japan. He has made significant contributions to the field of audio technology, holding a total of 7 patents. His work focuses on enhancing audio reproduction and power supply circuits, showcasing his expertise in electronic engineering.
Latest Patents
Among his latest innovations, Joji Kasai has developed an audio signal processing circuit designed for audio reproduction apparatuses. This circuit is particularly effective for sound sources positioned on the left and right sides of a listener. It features a phase difference control portion that adjusts the phase difference between left and right channel signals, achieving a relative phase difference of 140 to 160 degrees. This innovation enhances the listening experience by providing a more immersive sound environment.
Another notable patent is the switching power supply circuit, which includes a transformer with a main and auxiliary winding. This circuit utilizes a switching element to intermittently supply direct current to the main winding, while a controller manages the operation of the switching element based on the voltage induced across the auxiliary winding. The design also incorporates a startup circuit that ensures efficient operation from the outset.
Career Highlights
Joji Kasai is currently associated with Onkyo Corporation, a company renowned for its audio equipment and technology. His role at Onkyo has allowed him to apply his innovative ideas in practical applications, contributing to the advancement of audio technology.
Collaborations
Throughout his career, Joji has collaborated with notable colleagues, including Kazumasa Takemura and Tetsuro Nakatake. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies in audio processing.
Conclusion
Joji Kasai's contributions to audio signal processing and power supply circuits highlight his innovative spirit and technical expertise. His patents reflect a commitment to enhancing audio experiences, making him a significant figure in the field of electronic engineering.