Shuhei Nakahama

Title: Innovations of Shuhei Nakahama

Introduction

Shuhei Nakahama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of corrosion-resistant and wear-resistant coatings. With a total of 7 patents to his name, Nakahama's work has had a substantial impact on high-temperature equipment and alloy manufacturing.

Latest Patents

One of Nakahama's latest patents is a coating material that exhibits both corrosion resistance and wear resistance. This innovative coating consists of a first layer deposited on a base material and a second layer on top of the first. The first layer is composed of a Ni-base alloy or a Co-base alloy that contains carbon as an unavoidable impurity. The second layer is made of a hard material that includes carbide and a metal component. The design of this coating prevents carbon diffusion from the second layer into the base material, thereby avoiding carburization.

Another notable patent involves a manufacturing process for a nickel-based alloy that has improved high-temperature sulfidation-corrosion resistance. This method includes a forging treatment and a heat treatment process for a Ni-based alloy used in corrosion-resistant high-temperature equipment, such as Waspaloy or its improved variants. The alloy composition includes specific percentages of carbon, chromium, cobalt, molybdenum, titanium, and aluminum, with the balance primarily consisting of nickel. The manufacturing process ensures that the alloy maintains its hot strength properties while enhancing its sulfidation-corrosion resistance.

Career Highlights

Throughout his career, Shuhei Nakahama has worked with notable companies, including Ebara Corporation. His expertise in materials science has allowed him to develop innovative solutions that address critical challenges in high-temperature applications.

Collaborations

Nakahama has collaborated with several professionals in his field, including Matsuho Miyasaka and Hiroshi Yakuwa. These collaborations have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Shuhei Nakahama's contributions to materials science and his innovative patents demonstrate his commitment to advancing technology in corrosion-resistant and high-temperature applications. His work continues to influence the industry and inspire future innovations.