Location History:
- Kouza-gun, JP (2006 - 2008)
- Chigasaki, JP (2008 - 2014)
Company Filing History:
3 out of 33,490 
2 out of 100 
2 out of 89 
Years Active: 2006-2014
Title: Tsuyoshi Ohshima: Innovator in Piezoelectric Technology
Introduction
Tsuyoshi Ohshima is a notable inventor based in Chigasaki, Japan. He has made significant contributions to the field of piezoelectric technology, holding a total of 7 patents. His work focuses on innovative methods of manufacturing piezoelectric vibrators, which are essential components in various electronic devices.
Latest Patents
One of Tsuyoshi Ohshima's latest patents is a method of manufacturing a piezoelectric vibrator. This method involves supporting a piezoelectric vibration element in a case using a conductive bonding member. The piezoelectric vibration element features a metal layer formed on a piezoelectric substrate made of a thickness shear-based piezoelectric material. The process includes adjusting the thickness of the metal layer to achieve a predetermined resonant frequency. Additionally, the method requires placing the case in an atmosphere filled with vapor of a material that has a nonbonding electron pair, allowing for chemical absorption with the metal layer. Finally, the case is hermetically sealed in an inert gas atmosphere.
Another patent by Ohshima describes a piezoelectric vibration element that consists of a piezoelectric substrate and a metal layer on its surface. In this design, the surface of the metal layer is covered by a layer formed through chemical absorption with a material possessing a nonbonding electron pair. These innovations highlight Ohshima's expertise in enhancing the performance and reliability of piezoelectric devices.
Career Highlights
Throughout his career, Tsuyoshi Ohshima has worked with prominent companies in the technology sector. He has been associated with Seiko Epson Corporation and Epson Toyocom Corporation, where he contributed to the development of advanced piezoelectric technologies. His experience in these organizations has played a crucial role in shaping his innovative approaches to manufacturing piezoelectric components.
Collaborations
Tsuyoshi Ohshima has collaborated with notable colleagues in his field, including Shin Hasegawa and Noriyuki Watanabe. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in piezoelectric technology.
Conclusion
Tsuyoshi Ohshima's contributions to the field of piezoelectric technology are significant and impactful. His innovative methods and collaborations with leading companies and colleagues have positioned him as a key figure in advancing this technology. His work continues to influence