Company Filing History:
2 out of 2,514 
2 out of 56 Years Active: 1998-1999
Title: Syuhei Nakahama: Innovator in Heat-Resistant Alloys
Introduction
Syuhei Nakahama is a notable inventor based in Chiba-ken, Japan. He has made significant contributions to the field of materials science, particularly in the development of heat-resistant alloys. With a total of 2 patents, his work focuses on enhancing the mechanical properties and corrosion resistance of alloy members.
Latest Patents
Nakahama's latest patents include innovations in chromized heat-resistant alloy members and a process for their production. His first patent aims to provide heat-resistant alloy members that maintain the corrosion resistance of the chromized layer formed on nickel- or cobalt-based heat-resistant alloys. The improved alloy member features a chromized layer characterized by a chromium concentration of 25-80% and a thickness of 10-100 micrometers. This member is produced by controlling both the vapor pressure of a chromium halide used in chromization and the temperature, ensuring the chromized layer meets the specified criteria.
His second patent involves a method of forming carbide-base composite coatings. This process utilizes thermally sprayed coatings made from carbides of metals with varying carbon affinities in the presence of free carbon. The coatings are heat-treated in a chromium halide atmosphere containing hydrogen gas, leading to the precipitation of activated metallic chromium in a fine particulate form. This results in the creation of a Cr23C6-form carbide, enhancing the coatings' properties both on the surface and within their interior.
Career Highlights
Throughout his career, Syuhei Nakahama has worked with prominent companies such as Ebara Corporation and Tocalo Co., Ltd. His experience in these organizations has contributed to his expertise in the field of heat-resistant materials.
Collaborations
Nakahama has collaborated with notable coworkers, including Hisamichi Nagahara and Masamichi Kawasaki. Their joint efforts have further advanced the research and development of innovative materials.
Conclusion
Syuhei Nakahama's contributions to the field of heat-resistant alloys demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material properties and their applications in various industries.