Location History:
- Nikaho, JP (1980)
- Nikahomachi, JP (1981 - 1987)
Company Filing History:
Years Active: 1980-1987
Title: Ryoichi Shioi: Innovator in PTC Heating Technology
Introduction
Ryoichi Shioi is a notable inventor based in Nikahomachi, Japan. He has made significant contributions to the field of heating technology, particularly through his innovative work on positive temperature coefficient (PTC) heating elements. With a total of 3 patents to his name, Shioi continues to push the boundaries of what is possible in this area.
Latest Patents
One of Shioi's latest patents is a PTC heating apparatus. This invention features a PTC heating element with a honeycomb ceramic body that comprises barium titanate and a semiconductor element. This unique combination provides the ceramic body with a positive temperature coefficient of resistance over the Curie point. The electrodes deposited on each end of the honeycomb body exhibit non-ohmic properties, which is a significant improvement over conventional electrodes that are ohmic. This innovation effectively reduces high rush current and migration, enhancing the overall performance of the heating element.
Another notable patent is a heating element made of PTC ceramic material. This invention is designed for air heaters and similar applications. It comprises a ceramic material in the form of a honeycomb and includes a process for producing this ceramic material. The heating element is characterized by its relatively high heat generation capability compared to conventional heating elements of the same size. The preferred ceramic materials for this heating element have a temperature coefficient of electrical resistance ranging from 5 to 20% per degree Celsius and consist of specific molar percentages of BaO, PbO, TiO2, a semiconductor forming element, and manganese.
Career Highlights
Ryoichi Shioi is currently associated with TDK Electronics Company, Limited, where he applies his expertise in developing advanced heating technologies. His work has been instrumental in enhancing the efficiency and effectiveness of heating elements used in various applications.
Collaborations
Shioi has collaborated with notable coworkers, including Kazumasa Umeya and Hisao Senzaki. Their combined efforts have contributed to the advancement of innovative heating solutions.
Conclusion
Ryoichi Shioi stands out as a pioneering inventor in the field of PTC heating technology. His innovative patents and contributions to TDK Electronics Company, Limited, reflect his commitment to advancing heating solutions. His work continues to influence the industry and improve the efficiency