Location History:
- Higashimurayama, JP (1984)
- Kodaira, JP (1985)
Company Filing History:
Years Active: 1984-1985
Title: Mamoru Minamishima: Innovator in DC-to-DC Conversion and Audio Control Technologies
Introduction
Mamoru Minamishima is a notable inventor based in Higashimurayama, Japan. He has made significant contributions to the fields of electrical engineering and audio technology. With a total of 2 patents, his work focuses on innovative solutions for power conversion and audio signal processing.
Latest Patents
Minamishima's latest patents include a "DC-To-DC conversion circuit with shared regulation of outputs." This invention provides a DC-to-DC conversion circuit that supplies dual positive and negative DC output voltages of the same level in absolute value to load circuits, such as class B power amplifiers. The design allows for alternative fluctuation regulation in the output voltages, eliminating the need for simultaneous regulation. Another significant patent is for a "Volume control for an audio apparatus." This invention relates to a fader that controls the fading in or out of an audio signal level. It features a charge and discharge circuit that utilizes a capacitor charged and discharged by a constant current, along with a function generator that produces a logarithmic waveform signal. This innovative approach allows for a logarithmic change in the audio signal level, enhancing the user experience in audio applications.
Career Highlights
Mamoru Minamishima is currently associated with Nakamichi Corporation, a company renowned for its high-quality audio products and innovative technologies. His work at Nakamichi has allowed him to apply his inventive skills in a practical setting, contributing to the advancement of audio technology.
Collaborations
Minamishima has collaborated with Kozo Kobayashi, a fellow innovator, to further enhance the development of audio and electrical technologies. Their partnership exemplifies the collaborative spirit often found in the field of innovation.
Conclusion
Mamoru Minamishima's contributions to DC-to-DC conversion circuits and audio control technologies highlight his role as a significant inventor in Japan. His patents reflect a commitment to innovation and improvement in electrical engineering and audio applications.