Noriyuki Kuwano

Title: Noriyuki Kuwano: Innovator in Piezoelectric Technology

Introduction

Noriyuki Kuwano is a prominent inventor based in Kasuga, Japan. He is known for his significant contributions to the field of piezoelectric technology. His innovative work has led to the development of advanced materials that have various applications in electronics and sensors.

Latest Patents

Kuwano holds a patent for a piezoelectric element and a method for manufacturing it. This invention involves forming a lower electrode on a silica glass substrate or a stainless substrate. Through a sputtering process, a thin film of aluminum nitride and/or zinc oxide is created on the lower substrate, achieving a dipole-orientation degree of 55% or more. This process results in the formation of a piezoelectric thin film, with an upper electrode placed on top. The piezoelectric device features a piezoelectric layer made of aluminum nitride and/or zinc oxide, which possess inherent piezoelectric characteristics due to their non-symmetrical crystal structures. Unlike ferroelectrics, these materials do not have a Curie temperature and maintain their piezoelectric properties even at high temperatures until they melt or sublimate.

Career Highlights

Kuwano is affiliated with the National Institute of Advanced Industrial Science and Technology, where he continues to advance research in piezoelectric materials. His work has been instrumental in enhancing the performance and reliability of piezoelectric devices.

Collaborations

Kuwano has collaborated with notable colleagues, including Morito Akiyama and Naohiro Ueno. Their combined expertise has contributed to the success of various projects in the field of piezoelectric technology.

Conclusion

Noriyuki Kuwano's innovative work in piezoelectric technology has made a significant impact on the industry. His patent for a piezoelectric element showcases his expertise and dedication to advancing this important field.