Location History:
- Kanagawa-ken, JP (2014)
- Fukuoka, JP (1995 - 2016)
Company Filing History:
Years Active: 1995-2016
Title: Yasutaka Ushijima: Innovator in Semiconductive Ceramics
Introduction
Yasutaka Ushijima is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of semiconductive ceramics, holding a total of 5 patents. His work focuses on developing materials that enhance conductivity while maintaining mechanical stability.
Latest Patents
Ushijima's latest patents include innovative designs for semiconductive ceramic sintered compacts. One of his notable inventions is a semiconductive ceramic sintered compact that achieves high conductivity suitable for static electricity removal and antistatic applications. This invention also boasts excellent mechanical properties and stability over time. The compact consists of a main phase, which is a ceramic sintered phase containing AlO particles, along with first and second phases that enhance its conductive properties. The first phase includes a grain boundary phase with a conductive substance, while the second phase connects the first phases in a three-dimensional structure.
Another patent by Ushijima describes a similar semiconductive ceramic sintered compact, which includes a main phase of AlO particles and a conductive phase composed of two or more metals such as manganese, iron, and titanium. This design ensures that the area ratio of the conductive phase to the main phase is carefully controlled to optimize performance.
Career Highlights
Throughout his career, Ushijima has worked with notable companies, including NEC Corporation and Toto Ltd. His experience in these organizations has contributed to his expertise in the development of advanced materials.
Collaborations
Ushijima has collaborated with talented individuals in his field, including Akihiro Anezaki and Shogo Shimada. These partnerships have fostered innovation and the exchange of ideas, further enhancing his contributions to semiconductive ceramics.
Conclusion
Yasutaka Ushijima is a distinguished inventor whose work in semiconductive ceramics has led to significant advancements in the field. His innovative patents reflect a commitment to improving material properties for practical applications.