Location History:
- Yokohama, JA (1977)
- Hitachi, JP (1984)
- Katsuta, JP (1987 - 1994)
Company Filing History:
6 out of 42,485 
1 out of 1 
1 out of 4 Years Active: 1977-1994
Title: Takao Yoneyama: Innovator in Piezoelectric Technology
Introduction
Takao Yoneyama is a distinguished inventor based in Katsuta, Japan. He has made significant contributions to the field of piezoelectric technology, holding a total of 6 patents. His innovative work has led to advancements in various applications, particularly in the manufacturing and diagnosis of machinery.
Latest Patents
Yoneyama's latest patents include a "Bonded type piezoelectric apparatus, method for manufacturing the same." This invention features several key aspects, such as applying metallization on the bonding surface of a piezoelectric ceramic with a reactive metal, and using a mounting member with a similar thermal expansion coefficient as the piezoelectric ceramic. The result is a highly reliable bonded type piezoelectric apparatus that can operate across a broad temperature range, from near absolute zero to the Curie point of the piezoelectric element.
Another notable patent is the "Rotating machinery diagnosis system with acoustic emission technique." This system utilizes an acoustic emission sensor mounted on a rotary machine to detect acoustic signals. It includes an envelope detector, waveform-feature processor, and diagnostic output means, allowing for simultaneous judgment of various types of abnormalities in machinery.
Career Highlights
Throughout his career, Takao Yoneyama has worked with prominent companies such as Hitachi, Ltd. and Hitachi Material Engineering, Ltd. His experience in these organizations has contributed to his expertise in piezoelectric technology and machinery diagnostics.
Collaborations
Yoneyama has collaborated with notable colleagues, including Ichiya Sato and Tsuguaki Koga. Their joint efforts have furthered the development of innovative technologies in their respective fields.
Conclusion
Takao Yoneyama's contributions to piezoelectric technology and machinery diagnostics exemplify his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to enhancing reliability and performance in various applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.