This inventor holds 2 USPTO granted patents. Top assignees: Nihon Dempa Kogyo Co., Ltd., Tanaka Kikinzoku Kogyo K.k.. Active years: 2015-2020.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Sayama, JP (2015)
- Saitama, JP (2020)
Company Filing History:
2 out of 631 
1 out of 372 Years Active: 2015-2020
Title: The Innovations of Shohei Takeda
Introduction
Shohei Takeda is a notable inventor based in Sayama, Japan. He has made significant contributions to the field of crystal technology, holding two patents that showcase his innovative spirit and technical expertise.
Latest Patents
Takeda's latest patents include an AT-cut crystal element and a crystal resonator. The AT-cut crystal element is designed to reduce unnecessary vibration and improve the impedance of a resonator. This invention features two side surfaces that intersect with the Z'-axis of the crystallographic axis of the crystal, consisting of three surfaces: a first surface as an m-surface of quartz crystal, a second surface that intersects with the first surface, and a third surface that intersects with the second surface. The second surface is obtained by rotating a principal surface of the AT-cut crystal element by -74±3° around the X-axis, while the third surface is obtained by rotating the principal surface by -56±3° around the same axis.
Additionally, Takeda has developed a resonator electrode material that excels in aging properties and is more cost-effective than gold. This electrode material is a ternary alloy composed of gold and two other metals, which enhances the production dispersion and aging properties of the resonator. The metals used in this alloy are selected based on their effects on the temporal frequency property of the resonator.
Career Highlights
Throughout his career, Takeda has worked with prominent companies such as Nihon Dempa Kogyo Co., Ltd. and Tanaka Kikinzoku Kogyo K.K. His work in these organizations has allowed him to refine his skills and contribute to advancements in crystal technology.
Collaborations
Takeda has collaborated with notable coworkers, including Hiroyuki Yamauchi and Kazuhiko Osawa. These partnerships have fostered a creative environment that has led to innovative solutions in their field.
Conclusion
Shohei Takeda's contributions to crystal technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in resonator technology and materials science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile