Kunio Hiyama

Title: Innovations by Inventor Kunio Hiyama

Introduction

Kunio Hiyama, an esteemed inventor based in Hamamatsu, Japan, has made significant contributions to the field of sound technology. With a portfolio of 14 patents, Hiyama has cemented his reputation as a driving force in innovation within the audio equipment industry.

Latest Patents

Two of Hiyama's latest patents exemplify his ingenuity and technical prowess. The first patent focuses on a speaker diaphragm that incorporates a unique combination of a first polymer and a second polymer. These polymers undergo phase separation, where the first polymer is a polyolefin, while the second polymer is a thermoplastic resin that is immiscible with the polyolefin. This innovative design utilizes one of the polymers for the sea phase and the other for island phases interspersed within.

The second notable patent is a sensor unit designed to protect a piezoelectric element while detecting vibrations and sounds. This unit consists of a sheet-like piezoelectric element that features a porous layer and a sound propagation sheet that allows sound to transmit effectively. Hiyama’s design optimizes acoustic performance, ensuring that the difference in acoustic pressure level between incoming and transmitted sounds does not exceed 10 dB.

Career Highlights

Throughout his career, Hiyama has collaborated with reputable companies, including Yamaha Corporation and Yupo Corporation. His work in these organizations has advanced the development of audio technology, particularly in enhancing sound quality and sensor functionality.

Collaborations

Hiyama's innovative journey has not been a solitary endeavor. He has worked alongside talented professionals such as Kunimasa Muroi and Toshiharu Fukushima, contributing to a collaborative environment that fosters creativity and groundbreaking invention.

Conclusion

Kunio Hiyama continues to be a vital contributor to the audio technology landscape. His patents reflect his commitment to advancing sound innovation, revealing a promising future for both his career and the industry as a whole. As he develops further inventions, the impact of his work will undoubtedly resonate within the technology community and beyond.