Hiroaki Ishii

Title: Hiroaki Ishii: Innovator in Crystal Resonator Technology

Introduction

Hiroaki Ishii is a notable inventor based in Sayama, Japan. He has made significant contributions to the field of crystal resonator technology. His innovative work has led to the development of a unique crystal resonator that incorporates multiple electrodes.

Latest Patents

Hiroaki Ishii holds a patent for a "Crystal resonator with plural electrodes for use in a crystal." This invention features a crystal piece that causes shear vibration, along with first, second, and third pairs of electrodes. The first electrode pair is positioned at the center of the crystal piece and is coupled to a variable impedance. The second and third electrode pairs are located on either side of the first pair and are electrically connected to an oscillation circuit.

Career Highlights

Ishii is associated with Nihon Dempa Kogyo Co., Ltd., a company known for its advancements in electronic components. His work has been instrumental in enhancing the performance and reliability of crystal resonators.

Collaborations

Hiroaki Ishii has collaborated with notable colleagues, including Yoshifusa Ueno and Hiroshi Shimizu. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Hiroaki Ishii's innovative contributions to crystal resonator technology exemplify the impact of dedicated inventors in the field of electronics. His patent and collaborations highlight the importance of teamwork in driving technological advancements.