Tsutomu Nishikawa

Title: The Innovations of Tsutomu Nishikawa

Introduction

Tsutomu Nishikawa is a notable inventor based in Suwa, Japan. He is recognized for his contributions to the field of piezoelectric devices, particularly in the context of ink jet recording technology. His innovative work has led to advancements that enhance the performance of these devices.

Latest Patents

Nishikawa holds a patent for a piezoelectric device, ink jet recording head, and methods of manufacturing said device and head. This patent describes a piezoelectric device that features a crystallized piezoelectric film situated between a lower and an upper electrode. The unique aspect of this invention is that the crystal axis of the columnar crystal grain with the (001) orientation in the piezoelectric film is inclined at a predetermined angle relative to the normal direction of the lower electrode face. This design significantly improves the electric/mechanic converting function under low voltage conditions. He has 1 patent to his name.

Career Highlights

Nishikawa is associated with Seiko Epson Corporation, a leading company in the printing and imaging technology sector. His work at Epson has been pivotal in developing advanced ink jet technologies that are widely used in various applications.

Collaborations

Some of his notable coworkers include Hong Qiu and Kouji Sumi, who have collaborated with him on various projects within the company.

Conclusion

Tsutomu Nishikawa's contributions to the field of piezoelectric devices and ink jet technology have made a significant impact on the industry. His innovative patent showcases his expertise and commitment to advancing technology in this area.