Location History:
- Kamakura, JP (1986 - 1990)
- Chigasaki, JP (1988 - 2000)
Company Filing History:
Years Active: 1986-2000
Title: **Shousaku Ishihara: Innovator in Ceramic Substrate Technology**
Introduction
Shousaku Ishihara, an accomplished inventor based in Chigasaki, Japan, has made significant contributions to the field of ceramic substrate technology. With a total of nine patents to his name, he is recognized for his innovative approaches in developing materials that meet the demands of modern electronic devices.
Latest Patents
Ishihara's latest patents focus on two groundbreaking advancements. The first is a **circuit substrate and its manufacturing process**, highlighting a ceramic composition that can be sintered at temperatures ranging from 900 to 1,050 degrees Celsius. This unique material boasts a low relative dielectric constant, a thermal expansion coefficient comparable to silicon, and high bending strength. The production method leverages a specially formulated glass with a softening point of 850 to 1,100 degrees Celsius and a precise composition defined by specific criteria.
The second notable patent is an **organic binder for shaping ceramics**, which details a multilayer ceramic substrate featuring at least one ceramic layer. This innovation involves laminating ceramic green sheet layers and conductor layers, followed by a sintering process that ensures structural integrity. The ceramic precursor composition utilized includes ceramic fine powder and an organically synthesized binder, emphasizing the meticulous balance required for optimal performance.
Career Highlights
Ishihara has made strides in his career while working at Hitachi, Ltd., a prominent company at the forefront of technological innovation. His inventive work is essential for various applications, particularly in the electronics sector, where reliability and performance of substrates are critical.
Collaborations
Throughout his career, Ishihara has collaborated with talented professionals such as Tsuyoshi Fujita and Gyozo Toda. Their combined expertise has fostered a culture of innovation, driving forward the development of advanced materials that are pivotal to the industry.
Conclusion
Shousaku Ishihara continues to pave the way for advancements in ceramic substrates with his inventive spirit and dedication. His contributions not only enhance existing technology but also inspire future innovations in engineering and materials science.