Jun Katase

Title: Jun Katase: Innovator in Crystal Technology

Introduction

Jun Katase is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of crystal technology, particularly in the development of tuning fork type crystal components. With a total of 3 patents to his name, Katase's work has advanced the manufacturing processes and applications of these components.

Latest Patents

One of Katase's latest patents is a process for making a tuning fork type crystal component. This innovative manufacturing method allows for the production of an angular velocity sensor element with high accuracy. The process involves forming multiple tuning fork shaped crystal elements on a single crystal wafer using a photo-etching technique. These elements feature protrusion ridge line sections along the +X faces of the crystal, which are a result of etching anisotropy. Additionally, the method includes a step for applying a metallic film on each side face of the tuning fork shaped crystal element, which is crucial for the formation of sensor electrodes.

Another significant patent by Katase is for a tuning fork shaped crystal oscillator and its fabrication method. This invention enhances the breaking strength, CI stability, and frequency stability of angular velocity sensor elements. The design involves bonding two tuning fork shaped crystal elements that have been formed through wet etching, ensuring that their longitudinal and lateral directions are aligned correctly. This configuration improves the overall performance of the oscillator.

Career Highlights

Katase's career is marked by his dedication to advancing crystal technology. His work at Nihon Dempa Kogyo Co., Ltd. has positioned him as a key player in the industry. His innovative approaches to manufacturing and design have led to significant improvements in sensor technology.

Collaborations

Throughout his career, Katase has collaborated with talented individuals such as Hideryo Matsudo and Shigeto Yotuya. These partnerships have fostered a creative environment that has contributed to the success of their projects.

Conclusion

Jun Katase's contributions to the field of crystal technology are noteworthy. His innovative patents and collaborative efforts have significantly impacted the development of angular velocity sensors and crystal oscillators. His work continues to inspire advancements in this critical area of technology.