Location History:
- Hyogo, JP (1996)
- Itami, JP (1992 - 1997)
- Toyama, JP (2021)
Company Filing History:
13 out of 10,239 
1 out of 80 
Years Active: 1992-2021
Title: Takehisa Yamamoto: Innovator in Composite Materials and Semiconductor Devices
Introduction
Takehisa Yamamoto is a prominent inventor based in Itami, Japan, known for his significant contributions to the fields of composite materials and semiconductor devices. With a total of 13 patents to his name, Yamamoto has made remarkable advancements that have implications in various industries.
Latest Patents
Yamamoto's latest patents include innovative technologies such as a composite member, a heat radiation member, and a semiconductor device. One of his notable inventions is a composite member that features a substrate composed of a composite material containing both metal and non-metal components. This substrate exhibits spherical warpage with a radius of curvature between 5000 mm and 35000 mm, ensuring a sphericity error of no greater than 10.0 micrometers. Additionally, the substrate boasts a thermal conductivity of at least 150 W/m·K and a coefficient of linear expansion not exceeding 10 ppm/K. Another significant patent involves a method for producing a silicon nitride ceramic component, which includes grinding a silicon nitride sintered body and heat treating it to achieve desired residual stress characteristics.
Career Highlights
Throughout his career, Takehisa Yamamoto has worked with esteemed companies such as Sumitomo Electric Industries and ALMT Corporation. His experience in these organizations has allowed him to refine his expertise in material science and semiconductor technology, contributing to his innovative patent portfolio.
Collaborations
Yamamoto has collaborated with notable colleagues, including Akira Yamakawa and Takao Nishioka, further enhancing his research and development efforts in the field.
Conclusion
Takehisa Yamamoto's work in composite materials and semiconductor devices exemplifies the spirit of innovation. His patents reflect a commitment to advancing technology and improving material performance across various applications.
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.