Location History:
- Tokyo, JP (1991 - 2002)
- Miyagi, JP (2004 - 2021)
- Sendai, JP (2018 - 2021)
Company Filing History:
5 out of 982 
4 out of 349 
3 out of 5 
Years Active: 1991-2021
Title: Yuji Ohashi: Innovator in Crystal Manufacturing and Piezoelectric Technology
Introduction
Yuji Ohashi is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the fields of crystal manufacturing and piezoelectric technology. With a total of 11 patents to his name, Ohashi's work has advanced the understanding and application of materials in various technological domains.
Latest Patents
Ohashi's latest patents include a method for manufacturing crystal materials. This invention clarifies and defines a congruent composition of a langasite-based oxide. It establishes a method for producing crystals with desired compositions, which helps suppress impurity formation and improves yield and manufacturing rates. The raw material for this process consists of a mixture of alkaline-earth metals, niobium or tantalum, gallium, aluminum, and silicon oxides.
Another notable patent is for a piezoelectric vibrator and sensor. This invention aims to create a vibrator made from a piezoelectric crystal that exhibits a larger electromechanical coupling coefficient and superior frequency-temperature characteristics compared to quartz. The vibrating piece is crafted from a single crystal of CaTa(GaAl)SiO and CaNb(GaAl)SiO, with specific rotation angles set to optimize performance.
Career Highlights
Throughout his career, Yuji Ohashi has worked with esteemed institutions such as Tohoku University and Kabushiki Kaisha Shinkawa. His innovative work has garnered attention and respect within the scientific community, contributing to advancements in material science and engineering.
Collaborations
Ohashi has collaborated with notable colleagues, including Akira Yoshikawa and Kei Kamada. These partnerships have facilitated the exchange of ideas and fostered innovation in their respective fields.
Conclusion
Yuji Ohashi's contributions to crystal manufacturing and piezoelectric technology highlight his role as a leading inventor. His patents reflect a commitment to advancing material science, and his collaborations further enhance the impact of his work.
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.