Company Filing History:
Years Active: 1995-2009
Title: Junichi Kumagai: Innovator in Copper Alloy Technology
Introduction
Junichi Kumagai is a notable inventor based in Aizuwakamatsu, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced copper alloys. With a total of five patents to his name, Kumagai's work is recognized for its innovative approach and practical applications.
Latest Patents
One of Kumagai's latest patents focuses on a copper alloy and the method of manufacturing it. This copper alloy contains at least zirconium in an amount of not less than 0.005% by weight and not greater than 0.5% by weight. The alloy includes a first grain group with grains having a size of not greater than 1.5 μm, a second grain group with grains sized between 1.5 μm and 7 μm, and a third grain group with grains of at least 7 μm. The grains in the second group are elongated in one direction. Additionally, the patent specifies that the sum of α and β must be greater than γ, with α being the total area ratio of the first grain group, β the total area ratio of the second grain group, and γ the total area ratio of the third grain group, based on a unit area, where α + β + γ = 1.
Career Highlights
Kumagai is currently employed at Mitsubishi Shindoh Co., Ltd., where he continues to innovate in the field of materials. His work has not only advanced the understanding of copper alloys but has also contributed to the practical applications of these materials in various industries.
Collaborations
Throughout his career, Kumagai has collaborated with notable colleagues, including Rensei Futatsuka and Takeshi Suzuki. These collaborations have further enriched his research and development efforts, leading to groundbreaking advancements in alloy technology.
Conclusion
Junichi Kumagai stands out as a prominent inventor in the field of copper alloy technology. His innovative patents and contributions to Mitsubishi Shindoh Co., Ltd. highlight his commitment to advancing materials science. His work continues to influence the industry and pave the way for future innovations.