Company Filing History:
Years Active: 1995-2008
Title: Innovative Contributions of Hiroshi Miyazawa
Introduction
Hiroshi Miyazawa, an accomplished inventor based in Tokorozawa, Japan, has made significant strides in the field of optical acoustoelectric transducers and vibration detection. With a total of six patents to his name, his innovations are paving the way for advanced acoustic technologies.
Latest Patents
Among his latest patents, Hiroshi developed an optical acoustoelectric transducer that features a unique directivity pattern. This device employs a light-receiving element to detect light reflected from a centrally positioned light-emitting device, which is supported by side plates and incorporates an opening for acoustic wave entry. Additionally, one of his patents describes a mixer circuit that combines outputs from multiple optical microphones, each having different diaphragm thicknesses, to maintain uniform sensitivity across various frequency ranges. Furthermore, he advanced a compact directional optical acoustoelectric transducer, which utilizes multiple light-emitting devices and light-receiving elements, ensuring wideband characteristics.
Another notable invention is his vibration detector, which functions as a miniaturized photodetector-type microphone. This device showcases exceptional directivity without necessitating a mirror surface. It includes a diaphragm that vibrates in response to sound pressure. An integrated optical waveguide's vibration and diaphragm movement results in variations in the light quantity transmitted, enabling effective sound detection.
Career Highlights
Hiroshi Miyazawa has successfully worked with Kabushikikaisha Kenwood, contributing to their innovative projects. His full dedication to the field of acoustics and optics has made him a notable figure within the industry.
Collaborations
Throughout his career, Hiroshi has collaborated with skilled professionals such as Okihiro Kobayashi and Nobuhiro Miyahara. These partnerships have further enhanced the development of groundbreaking technologies in their respective fields.
Conclusion
With his extensive patent portfolio and commitment to innovation, Hiroshi Miyazawa stands out as a significant contributor to the realms of optical acoustoelectric devices and vibrational technologies. His work not only showcases his remarkable ingenuity but also highlights the potential advancements in acoustic applications.