Tetsuya Sato

Title: Tetsuya Sato: Crystal Resonator Inventor

Introduction

Tetsuya Sato is an inventor based in Saitama, Japan, associated with Nihon Dempa Kogyo Co., Ltd. His patent work focuses on crystal resonator designs and electrode structures. The available information lists 2 patents.

Latest Patents

Sato’s listed patents describe crystal resonators that use carefully oriented crystal elements and shaped excitation electrodes or surface features.

One patent describes a flat, plate-shaped crystal element with principal surfaces aligned to specified crystallographic axes. Its excitation electrodes have a circular central region and a thinner peripheral region with an elliptical outline. The ellipse’s long axis is oriented close to the direction of the X′-axis.

Another patent describes a crystal element with excitation electrodes on its principal surfaces and elliptical mesa or inverted-mesa portions. These features project from or are recessed into the surfaces, respectively. The design also specifies ranges for the crystal’s X′- and Z′-axis orientations.

Career Highlights

The available patent information highlights Sato’s contributions to crystal resonator engineering, particularly electrode geometry, surface shaping, and crystallographic orientation. These design details are directed toward the structure of resonator components.

Collaborations

Sato is associated with Nihon Dempa Kogyo Co., Ltd. The listed coworkers are Masaaki Nakahara and Yuki Oi.

Conclusion

Tetsuya Sato’s listed inventions focus on crystal resonators, combining specified crystal orientations with shaped electrodes and surface features.