Location History:
- Hino, JP (1982 - 1984)
- Tokyo, JP (1991)
Company Filing History:
Years Active: 1982-1991
Title: Innovations of Yozo Marutake
Introduction
Yozo Marutake is a notable inventor based in Hino, Japan. He has made significant contributions to the field of audio technology, holding a total of four patents. His work focuses on enhancing sound pick-up devices and electromagnetic induction systems.
Latest Patents
One of Marutake's latest inventions is an audio current pick-up device. This device is designed for use with electric wires carrying audio information. It comprises a pair of substantially identical magnetic induction coil assemblies that are arranged in parallel and orthogonally to the wire. Each coil includes a magnetic core and a pair of induction coils wound in opposite directions. The outputs of these coils are phase-shifted and composited to form a sound pick-up signal, which is then used to derive a sound output signal.
Another significant invention is the electromagnetic induction coil antenna. This device is embedded in hearing aids or radio sets to receive sound signals generated by a primary electromagnetic induction coil placed in a room. The design includes multiple coils arranged uniformly in space, with a phase selector that operates like a mercury switch. This setup allows for consistent sound pressure output, regardless of the user's posture.
Career Highlights
Yozo Marutake is currently employed at Rion Kabushiki Kaisha, a company known for its innovations in audio technology. His work has contributed to advancements in hearing aids and sound reception devices, making them more effective and user-friendly.
Collaborations
Marutake has collaborated with several talented individuals in his field, including Tatsuro Fukutome and Motomu Asami. These collaborations have fostered a creative environment that encourages innovation and the development of new technologies.
Conclusion
Yozo Marutake's contributions to audio technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the design and functionality of sound-related devices, enhancing the user experience.