Ryutaro Abe

Title: Innovations by Ryutaro Abe

Introduction

Ryutaro Abe is a notable inventor based in Shimane, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced alloys. With a total of 2 patents, his work has implications for various industrial applications.

Latest Patents

One of his latest patents is a method for manufacturing martensite-based precipitation strengthening stainless steel. This invention provides a method that effectively enables crystal grains to become finer by improving the solution treatment method. The steel composition includes 0.01 to 0.05 mass % of carbon, 0.2 mass % or less of silicon, 0.4 mass % or less of manganese, 7.5 to 11.0 mass % of nickel, 10.5 to 14.5 mass % of chromium, 1.75 to 2.50 mass % of molybdenum, 0.9 to 2.0 mass % of aluminum, less than 0.2 mass % of titanium, and iron and impurities as a remainder. The method involves performing a solid solution treatment at temperatures between 845 to 895°C once or more.

Another significant patent by Abe is related to an Ni-base super alloy, which is utilized in airplane engines and gas turbines for power generation. This alloy exhibits favorable mechanical properties at high temperatures. The composition of this Ni-base super alloy includes 0.001 to 0.1 mass % of carbon, 1.0 to 4.0 mass % of aluminum, 2.0 to 4.5 mass % of titanium, 12.0 to 18.0 mass % of chromium, 11.1 to 18.0 mass % of cobalt, 1.2 to 12.0 mass % of iron, 1.5 to 6.5 mass % of molybdenum, 0.5 to 6.0 mass % of tungsten, 0.1 to 3.0 mass % of niobium, 0.001 to 0.05 mass % of boron, 0.001 to 0.1 mass % of zirconium, and nickel and impurities as a remainder.

Career Highlights

Ryutaro Abe is currently employed at Hitachi Metals, Ltd., where he continues to