Shunjiro Imagawa

Title: Shunjiro Imagawa: Innovator in Dielectric Measurement and Piezoelectric Technology

Introduction

Shunjiro Imagawa is a notable inventor based in Nagaokakyo, Japan. He has made significant contributions to the fields of dielectric measurement and piezoelectric technology. With a total of 8 patents to his name, his work has had a considerable impact on various technological advancements.

Latest Patents

One of Imagawa's latest patents is a method for measuring the dielectric constant of powder. This innovative technique involves introducing a powder and a liquid medium between a pair of electrode members that are opposed to each other with a constant space. The apparent dielectric constant of the composite system is measured with a powder volume ratio set between 0.45 and 0.55, and a measuring frequency of at least 1 MHz. The measured value is then applied to the logarithmic mixing rule or the Lichtone-Rother equation to determine the dielectric constant of the powder. This method allows for a reliable determination of the dielectric constant using these mathematical principles.

Another significant patent is for a piezoelectric sounding body. This invention comprises a piezoelectric substrate, an electrode film on its surface, and a vibrating plate that is adhered to the electrode film through an adhesion layer. The adhesion layer is made from an ultraviolet setting type anaerobic adhesive containing 0.1 to 1.0 percent by weight of carbon particles with a mean particle diameter ranging from 1.0 to 20.0 micrometers. This design enhances the functionality and efficiency of piezoelectric devices.

Career Highlights

Throughout his career, Shunjiro Imagawa has worked with prominent companies, including Murata Manufacturing Co., Ltd. and Murata Mfg. Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.

Collaborations

Imagawa has collaborated with notable coworkers such as Jun Harada and Kikuo Wakino. These partnerships have fostered a creative environment that has led to the development of innovative technologies.

Conclusion

Shunjiro Imagawa's contributions to dielectric measurement and piezoelectric technology exemplify his innovative spirit and dedication to advancing scientific knowledge. His patents reflect a commitment to improving technology and enhancing the understanding of complex materials.