Location History:
- Kawasaki, JP (1995 - 1997)
- Kanagawa-ken, JP (1997)
Company Filing History:
6 out of 52,711 
1 out of 37 
Years Active: 1995-1997
Title: Katsuyoshi Oh-Ishi: Innovator in Semiconductor Technology
Introduction
Katsuyoshi Oh-Ishi is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on advanced materials and circuit substrates that enhance the performance of electronic devices.
Latest Patents
Oh-Ishi's latest patents include a sintered aluminum nitride composition and a circuit substrate designed for semiconductor devices. This innovative composition comprises aluminum nitride, a first component from alkaline earth elements or group IIIa elements, a second component made of simple silicon or silicon-containing compounds, and a third component made of simple manganese or manganese-containing compounds. The circuit substrate features an insulating layer composed of this sintered aluminum nitride composition, along with an electrically conductive layer that contains the same components. Another notable patent is for a ceramic circuit board with a thermal conductivity substrate, which includes an aluminum nitride sintered body and a coating layer of aluminum phosphate. This substrate boasts excellent humidity and chemical resistance, making it ideal for various applications.
Career Highlights
Throughout his career, Katsuyoshi Oh-Ishi has worked with notable companies such as Kabushiki Kaisha Toshiba and Toshiba Tungaloy Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Oh-Ishi has collaborated with esteemed colleagues, including Fumio Ueno and Akihiro Horiguchi. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Katsuyoshi Oh-Ishi is a distinguished inventor whose work in semiconductor technology has led to significant advancements in the field. His innovative patents and collaborations reflect his commitment to enhancing electronic device performance.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.