Company Filing History:
2 out of 2,916 
2 out of 52,766 
Years Active: 1983-2003
Title: Hiroyasu Ohta: Innovator in Ceramic Technologies
Introduction
Hiroyasu Ohta is a prominent inventor based in Yokohama, Japan, known for his significant contributions to the field of ceramic materials. With a total of 4 patents to his name, Ohta's work is characterized by innovation and precision, particularly in developing high-performance ceramic components.
Latest Patents
Ohta's latest patents include two notable inventions: a ceramic sinter and a wear-resistant member and electronic component member utilizing the ceramic sinter. The ceramic sinter is composed of various materials such as silicon nitride, zirconia, and aluminum nitride, designed to suppress wear in opposing components effectively. Key features include maintaining skewness at a contact surface of -2 or more and 0 or less, limiting micro-crack depth to 5 micrometers, and ensuring that the porous area does not exceed 5% in a 500-micrometer depth from the ceramic surface. This innovation enhances bonding strength with metal plates, resulting in more reliable electronic components.
Moreover, the second patent focuses on producing a silicon nitride ceramic article that excels in high-temperature strength, withstanding temperatures of up to 1,300 degrees Celsius. This product is created by firing a mixture that includes a small percentage of rare earth element oxides and various other compounds, ensuring it maintains its structural integrity under extreme conditions.
Career Highlights
Throughout his career, Hiroyasu Ohta has made significant strides in the ceramics industry, having worked for notable companies such as Tokyo Shibaura Denki Corporation and Toshiba Corporation. His experience at these leading organizations has allowed him to refine his expertise and push the boundaries of what is possible in ceramic materials.
Collaborations
Ohta's innovative journey has included collaborations with talented individuals like Michiyasu Komatsu and Akihiko Tsuge. Working alongside such esteemed colleagues has enriched his approach to research and development, leading to advanced breakthroughs in his field.
Conclusion
Hiroyasu Ohta is an exemplary figure in the world of innovations in ceramics. His latest patents demonstrate his commitment to enhancing the performance and reliability of technological components. Through his collaborations and career achievements, Ohta continues to be a driving force in the ongoing evolution of ceramic technology.