Location History:
- Nara-ken, JP (2003 - 2006)
- Nara, JP (2006)
- Chiyogaoka, Nara-shi, Nara-ken, JP (2008)
- Nara-shi, Nara-ken, JP (2006 - 2009)
Company Filing History:
9 out of 90,753 
1 out of 1 
1 out of 1 Years Active: 2003-2009
Title: Kiyotaka Wasa: Innovator in Piezoelectric Technology
Introduction
Kiyotaka Wasa is a prominent inventor based in Nara-ken, Japan. He has made significant contributions to the field of piezoelectric technology, holding a total of 9 patents. His work focuses on enhancing the efficiency and reliability of microprocessing through innovative designs and manufacturing methods.
Latest Patents
Wasa's latest patents include a structure of a piezoelectric element and a liquid discharge recording head, along with the method of manufacture for these components. The piezoelectric element structure features a supporting substrate and a piezoelectric film that contains a first layer and a second layer with zirconium. These layers are designed to be in contact or laminated through an intermediate layer, with the temperature set at 500°C or more during thin film formation. This process allows for a quick cooling from the thin film formation temperature to at least 450°C at a cooling speed of 30°C/min or more. The resulting piezoelectric film is thinner than conventional films but exhibits a larger piezoelectric constant, enabling efficient microprocessing. Additionally, he has developed a dielectric element that includes a lower electrode layer, a dielectric layer, and an upper electrode layer, with specific compositions to enhance performance.
Career Highlights
Throughout his career, Kiyotaka Wasa has worked with notable companies, including Canon Kabushiki Kaisha. His innovative approaches have led to advancements in the manufacturing of piezoelectric and dielectric elements, contributing to the development of inkjet heads and recording apparatuses.
Collaborations
Wasa has collaborated with esteemed colleagues such as Takanori Matsuda and Tetsuro Fukui. Their combined expertise has further propelled advancements in the technologies they have worked on.
Conclusion
Kiyotaka Wasa's contributions to piezoelectric technology and his innovative patents have significantly impacted the field. His work continues to influence the development of efficient microprocessing techniques and advanced recording technologies.