Company Filing History:
Years Active: 2013-2018
Title: Innovations of Hideki Kotsuji in Leadless Brass Alloys
Introduction
Hideki Kotsuji is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of materials science, particularly in the development of leadless brass alloys. With a total of two patents to his name, Kotsuji's work focuses on enhancing the stress corrosion cracking resistance of these alloys.
Latest Patents
Kotsuji's latest patents revolve around a leadless brass alloy that excels in stress corrosion cracking resistance. By enhancing this resistance, he specifically suppresses the velocity of propagation of corrosion cracks within the brass alloy. This innovation addresses the issue of straight line cracks that are characteristic of leadless brass alloys. The invention increases the probability of cracks coming into contact with γ phases, thereby preventing local corrosion on the brass surface. This suppression of local corrosion is crucial in reducing the induction of cracks. The leadless brass alloy developed by Kotsuji is an Sn-containing Bi-based, Sn-containing Bi+Sb-based, or Sn-containing Bi+Se+Sb-based alloy. It features an α+γ structure or α+β+γ structure, with γ phases uniformly distributed at a predetermined proportion to further suppress local corrosion and the induction of stress corrosion cracks.
Career Highlights
Kotsuji is currently associated with Kitz Corporation, where he continues to innovate in the field of materials science. His work has garnered attention for its practical applications in various industries that utilize brass alloys.
Collaborations
Kotsuji has collaborated with notable colleagues, including Hidenobu Tameda and Kazuhito Kurose. Their combined expertise has contributed to the advancements in the development of leadless brass alloys.
Conclusion
Hideki Kotsuji's contributions to the field of leadless brass alloys demonstrate his commitment to innovation and excellence in materials science. His patents reflect a deep understanding of the challenges associated with stress corrosion cracking, and his work continues to influence the industry positively.