Location History:
- Tokyo, JP (1999)
- Saitama, JP (1999 - 2000)
- Ageo, JP (1997 - 2003)
Company Filing History:
5 out of 817 
1 out of 13,408 
1 out of 2 Years Active: 1997-2003
Title: Ryuji Ninomiya: Innovator in Copper Alloy Technologies
Introduction
Ryuji Ninomiya is a prominent inventor based in Ageo, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced copper alloys. With a total of 7 patents to his name, Ninomiya's work has had a substantial impact on various industrial applications.
Latest Patents
Ninomiya's latest patents include innovative technologies such as an abrasion-resistant copper alloy and a copper alloy powder designed for build-up cladding. One of his notable inventions involves a valve seat formed by build-up cladding, which utilizes a laser beam on a copper alloy powder. This powder consists of copper (Cu), 6-9 wt % nickel (Ni), 1-5 wt % silicon (Si), and 1-5 wt % of one of molybdenum (Mo), tungsten (W), tantalum (Ta), niobium (Nb), and vanadium (V). This unique composition results in a valve seat with minimal microcracks and excellent abrasion resistance. Additionally, he has developed a wire and cable for use in robots, featuring a conductor made from a metallic fiber-reinforced copper matrix composite, which boasts impressive conductivity and tensile strength.
Career Highlights
Throughout his career, Ryuji Ninomiya has worked with notable companies such as Mitsui Mining & Smelting Co., Ltd. and Nissan Motor Company Limited. His experience in these organizations has allowed him to refine his expertise in materials engineering and innovation.
Collaborations
Ninomiya has collaborated with esteemed colleagues, including Junichi Matsunaga and Takeshi Ojiro. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field of copper alloys.
Conclusion
Ryuji Ninomiya's contributions to the field of materials science, particularly in copper alloy technologies, have established him as a leading inventor. His innovative patents and collaborations continue to influence various industries, showcasing the importance of his work in advancing technology.