Company Filing History:
Years Active: 2021-2022
Title: Kazuhiko Echizenya: Innovator in Piezoelectric Single Crystal Technology
Introduction
Kazuhiko Echizenya is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the production of piezoelectric single crystals. With a total of two patents to his name, Echizenya's work has advanced the understanding and manufacturing processes of these critical materials.
Latest Patents
Echizenya's latest patents include a method for producing PbTiO-containing single crystals. This innovative method prevents compositional variations and defects in the single crystal, allowing for the production of a single crystal with uniform characteristics in the growth direction at high yield. The process utilizes the vertical Bridgman technique, where the thickness of the melt layer in a crucible is maintained at a minimum of 30 mm.
Another notable patent is for a method of producing piezoelectric single crystal ingots. This method ensures minimal variation in the concentration of PbTiO in the growth direction of the single crystal. By employing the Bridgman method, a complete solid solution-type piezoelectric single crystal ingot is produced. The process involves filling a crucible with a starting material that blends a relaxor with lead titanate, heating it to the melting temperature, and then facilitating one-direction solidification from the lower part of the crucible.
Career Highlights
Kazuhiko Echizenya is associated with JFE Mineral Company, Ltd., where he continues to innovate in the field of materials science. His work has been instrumental in enhancing the quality and efficiency of piezoelectric materials, which are essential in various applications, including sensors and actuators.
Collaborations
Echizenya collaborates with Keiichiro Nakamura, contributing to the advancement of their shared research interests in piezoelectric materials.
Conclusion
Kazuhiko Echizenya's contributions to the field of piezoelectric single crystals have established him as a key figure in materials science. His innovative methods and patents reflect his commitment to advancing technology in this critical area.