Location History:
- Yamagata, JP (2021)
- Tendo, JP (2021)
Company Filing History:
2 out of 2,649 
2 out of 291 Years Active: 2021
Title: Satoru Hiwatari: Innovator in Sound Generation Technology
Introduction
Satoru Hiwatari is a notable inventor based in Yamagata, Japan. He has made significant contributions to the field of sound generation technology, holding 2 patents that showcase his innovative approach to reducing noise and enhancing sound quality.
Latest Patents
One of Hiwatari's latest patents is a sound generation device designed to reduce noise in accordance with a predetermined frequency band. This device incorporates an elastic member to achieve a sound pressure characteristic with a sub-peak at a frequency lower than the lowest resonance frequency. By controlling the input signal to generate sound with an opposite phase to the noise, the device effectively minimizes noise interference. Additionally, it allows for greater design flexibility by reducing restrictions on the equivalent mass and resonance frequency of the diaphragm.
Another significant patent is the sound generator for mobile entities. This invention features a speaker unit that emits sound towards a box-like space formed by a vehicle. The speaker unit is housed within an enclosure, which may include a tubular member or vibration member to generate resonance sounds at frequencies different from the speaker unit's lowest resonance frequency. This design enhances the overall sound experience within the vehicle.
Career Highlights
Throughout his career, Satoru Hiwatari has worked with prominent companies such as Pioneer Corporation and Tohoku Pioneer Corporation. His experience in these organizations has allowed him to refine his skills and contribute to advancements in sound technology.
Collaborations
Hiwatari has collaborated with notable colleagues, including Hiroyuki Dohi and Hiroyuki Kobayashi. Their combined expertise has likely fostered innovative ideas and solutions in their respective projects.
Conclusion
Satoru Hiwatari's contributions to sound generation technology reflect his dedication to innovation and problem-solving. His patents demonstrate a commitment to enhancing sound quality while minimizing noise, making him a significant figure in the field.