Company Filing History:
Years Active: 2007
Title: Keiichiro Jinushi: Innovator in Piezoelectric Technology
Introduction
Keiichiro Jinushi is a prominent inventor based in Toshima-ku, Japan. He is known for his significant contributions to the field of piezoelectric devices. His innovative work focuses on enhancing the performance and reliability of piezoelectric elements.
Latest Patents
One of Jinushi's notable patents is titled "Piezoelectric device comprising ultrahighly-oriented aluminum nitride thin film and its manufacturing method." This invention aims to provide a high-performance piezoelectric element that features an aluminum nitride thin film free from hillocks, cracks, and peeling. The device exhibits superhigh c-axis orientation by utilizing a bottom electrode made from a W layer without an intervening adhesive layer on a cost-effective substrate. The piezoelectric element is characterized by a stack structure that includes a bottom electrode, a piezoelectric body thin film, and a top electrode, all sequentially formed on the substrate. The bottom electrode is crafted from an oriented W layer, with its (111) plane parallel to the substrate's surface. The piezoelectric body thin film is composed of a c-axis-oriented aluminum nitride thin film, which has a rocking curve full width half maximum (RCFWHM) not exceeding 2.5°.
Career Highlights
Jinushi is affiliated with the National Institute of Advanced Industrial Science and Technology, where he continues to advance research in piezoelectric technology. His work has garnered attention for its potential applications in various industries, including electronics and materials science.
Collaborations
Throughout his career, Jinushi has collaborated with esteemed colleagues such as Morito Akiyama and Naohiro Ueno. These partnerships have contributed to the development of innovative technologies and have fostered a collaborative research environment.
Conclusion
Keiichiro Jinushi's contributions to piezoelectric technology exemplify the importance of innovation in advancing scientific knowledge and practical applications. His work continues to influence the field and inspire future developments in piezoelectric devices.
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