Location History:
- Oume, JP (1994)
- Ehime, JP (2020)
Company Filing History:
Years Active: 1994-2020
Title: Yoshiaki Matsumura: Innovator in Nickel Powder Production and Ceramic Substrates
Introduction
Yoshiaki Matsumura is a notable inventor based in Ehime, Japan. He has made significant contributions to the fields of materials science and engineering, particularly in the production of nickel powder and ceramic substrates. With a total of 2 patents, Matsumura's work has implications for various industrial applications.
Latest Patents
Matsumura's latest patents include a process for producing nickel powder and a ceramic substrate sintered at low temperatures. The first patent describes a method for producing nickel powder that is both inexpensive and high-performance, utilizing a wet process. This innovative approach involves a crystallization step that combines water-soluble nickel salt, a more noble metal salt, a reducing agent, alkali hydroxide, an amine compound, and water. The use of hydrazine as a reducing agent and specific amine compounds enhances the efficiency of the process.
The second patent focuses on a ceramic substrate that can be sintered at temperatures below 900°C. This substrate comprises 20 to 50% by volume of an anorthite crystal phase, 1 to 20% by volume of a gahnite crystal phase, and the remainder as a glass phase. It also contains 35 to 50% by weight of alumina as a filler. The resulting substrate exhibits impressive mechanical strength exceeding 2500 kgf/cm² and a low thermal expansion coefficient, making it suitable for use with conductors like gold, silver, and copper.
Career Highlights
Matsumura is currently employed at Sumitomo Metal Mining Company, Ltd., where he continues to develop innovative materials and processes. His work has contributed to advancements in the production of high-performance materials that meet the demands of modern technology.
Collaborations
Throughout his career, Matsumura has collaborated with esteemed colleagues such as Juji Ishigame and Junji Ishii. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Yoshiaki Matsumura's contributions to the fields of nickel powder production and ceramic substrates highlight his role as a significant inventor. His innovative patents reflect a commitment to advancing material science and engineering, paving the way for future developments in these areas.