Kunio Namiki

Title: Kunio Namiki: Innovator in Steel Composition

Introduction

Kunio Namiki is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced steel compositions. With a total of five patents to his name, Namiki's work has had a considerable impact on the manufacturing industry.

Latest Patents

Namiki's latest patents include innovative steel formulations designed for specific applications. One of his notable inventions is a steel for induction hardening, which boasts excellent machinability, allowing it to be cut directly without the need for annealing. This steel composition consists of carbon (C) ranging from 0.37% to 0.45%, silicon (Si) up to 0.35%, manganese (Mn) between 1.0% and 1.5%, boron (B) from 0.0005% to 0.0035%, titanium (Ti) from 0.01% to 0.05%, aluminum (Al) from 0.01% to 0.06%, and the balance being iron (Fe). The nitrogen content is capped at 0.022%, and the steel features a fine structure with a ferrite crystal grain size number of 6 or more, as defined by JIS-G0552. This material is particularly suitable for manufacturing machine structural parts, such as drive shafts for automobiles. Another significant patent involves a steel composition for gears, which is characterized by high strength, toughness, and machinability. This composition includes carbon (C) at 0.10% to 0.30%, silicon (Si) at less than 0.15%, manganese (Mn) at no more than 1.5%, phosphorus (P) at no more than 0.015%, sulfur (S) at no more than 0.005%, chromium (Cr) at 0.50% to 1.50%, lead (Pb) at 0.005% to 0.06%, with the balance being iron and inevitable impurities.

Career Highlights

Throughout his career, Kunio Namiki has worked with prominent companies in the industry. He has been associated with Daido Tokushuko Kabushiki Kaisha and Honda Giken Kogyo Kabushiki Kaisha, where he has applied his expertise in steel composition to develop