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Years Active: 2010-2019
Title: Chiaki Yokoyama: Innovator in Nitride Single Crystal Production
Introduction
Chiaki Yokoyama is a prominent inventor based in Miyagi, Japan, known for his significant contributions to the field of materials science. With a total of three patents to his name, Yokoyama has focused on developing methods for producing nitride single crystals, which are essential in various technological applications.
Latest Patents
Yokoyama's latest patents include a method for producing nitride single crystals using a nitrogen-containing solvent and a mineralizer that contains a fluorine atom. The first object of this invention is to provide a method for efficiently growing a nitride single crystal even under low pressure conditions. This method involves growing a nitride crystal on the surface of a seed crystal with a hexagonal crystal structure by setting a pressure in a reaction vessel to between 5 to 200 MPa. The process is controlled to ensure that the nitrogen-containing solvent is in at least either a supercritical state or a subcritical state.
Career Highlights
Throughout his career, Chiaki Yokoyama has worked with notable organizations, including Mitsubishi Chemical Corporation and Tohoku University. His work has significantly advanced the understanding and production of nitride materials, contributing to various industrial applications.
Collaborations
Yokoyama has collaborated with esteemed colleagues such as Tohru Ishiguro and Quanxi Bao, enhancing the research and development efforts in his field.
Conclusion
Chiaki Yokoyama's innovative methods for producing nitride single crystals have made a lasting impact on materials science. His contributions continue to influence advancements in technology and industry.