Company Filing History:
Years Active: 1994
Title: Tokiomi Katoh: Innovator in Microwave Dielectric Ceramic Composition
Introduction
Tokiomi Katoh is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of microwave dielectric materials. His innovative work has led to the development of a unique ceramic composition that has practical applications in various technologies.
Latest Patents
Tokiomi Katoh holds a patent for a microwave dielectric ceramic composition. This composition is represented by the formula xMgTiO.sub.3 .multidot.(1-x)CaTiO.sub.3, where the value of x ranges from 0.93 to 0.95. The composition includes 3-9 wt % of ZnO, 2-4 wt % of Ta.sub.2 O.sub.5, 1-6 wt % of Nb.sub.2 O.sub.5, 0.1-6 wt % of MnO.sub.2, and 3-12 wt % of Al.sub.2 O.sub.3 or Co.sub.2 O.sub.3. The resulting dielectric ceramic compositions exhibit a Qu value between 3000 and 4600 at 6 GHz, a temperature coefficient of the resonance frequency (.tau.f) ranging from -10 to +10 ppm/.degree.C, and a relative dielectric constant (.epsilon..sub.r) between 18 and 22. These compositions are designed to control the temperature coefficient effectively while maintaining desirable dielectric properties.
Career Highlights
Tokiomi Katoh is associated with NGK Spark Plug Company, Limited, where he has been instrumental in advancing ceramic technology. His work has contributed to the production of high-density and high-quality sintering products, even when varying the sintering temperature. His innovative approach to material composition has opened new avenues for research and application in the field.
Collaborations
Tokiomi Katoh has collaborated with Hirofumi Ozeki, working together to enhance the development of dielectric materials. Their partnership has fostered innovation and has led to advancements in ceramic compositions.
Conclusion
Tokiomi Katoh's contributions to microwave dielectric ceramic compositions highlight his role as a significant inventor in the field. His innovative work continues to influence the development of advanced materials, showcasing the importance of research and collaboration in driving technological progress.