Tetsuji Itou

Title: Tetsuji Itou: Innovator in Piezoelectric Technology

Introduction

Tetsuji Itou is a prominent inventor based in Kariya, Japan, known for his significant contributions to the field of piezoelectric technology. With a total of 4 patents to his name, Itou has developed innovative methods that enhance the performance and reliability of piezoelectric elements.

Latest Patents

One of Itou's latest patents is a method of producing a laminate-type piezoelectric element. This method involves forming a ceramic laminated body through an intermediate laminated body-forming step, where green sheets serving as piezoelectric layers and inner electrode layers are alternately laminated. The process includes a calcining step that transforms the intermediate laminated body into a ceramic laminated body. Notably, this method creates overlapped and non-overlapped portions in the intermediate laminated body, with voids formed in the non-overlapped areas to improve performance.

Another significant patent by Itou is for a hollow laminated piezoelectric element and its manufacturing method. This innovative element boasts excellent durability and reliability while achieving high output. The design features a ceramic laminate with alternately laminated piezoelectric layers and internal electrode layers, along with a center through hole that runs along the lamination direction. The internal structure is designed to ensure that the internal electrode layers are not exposed to the inside peripheral surface of the ceramic laminate, enhancing its functionality.

Career Highlights

Tetsuji Itou has made remarkable strides in his career, particularly through his work at Denso Corporation. His expertise in piezoelectric technology has positioned him as a key figure in the development of advanced materials and components.

Collaborations

Throughout his career, Itou has collaborated with notable colleagues, including Akio Iwase and Shige Kadotani. These partnerships have contributed to the advancement of innovative technologies in the field.

Conclusion

Tetsuji Itou's contributions to piezoelectric technology through his patents and work at Denso Corporation highlight his role as a leading inventor in this specialized field. His innovative methods continue to influence the development of high-performance piezoelectric elements.