Location History:
- Chiba, JP (2010)
- Tokai, JP (2019)
- Tokyo, JP (2013 - 2021)
Company Filing History:
13 out of 1,101 
3 out of 3,557 Years Active: 2010-2021
Title: Innovations of Hideki Hamatani
Introduction
Hideki Hamatani is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced welding techniques and materials. With a total of 16 patents to his name, Hamatani's work has had a substantial impact on the manufacturing industry.
Latest Patents
Among his latest patents is a method for creating a spot-welded joint. This innovation involves overlapping multiple pieces of steel plates and performing spot welding, which includes high-strength steel plates with tensile strengths ranging from 750 MPa to 2500 MPa. The method ensures that the carbon equivalent of the high-strength steel plate is between 0.20 mass % and 0.55 mass %. Additionally, it improves the cross tensile strength of the spot-welded joint by ensuring the presence of iron-based carbides within the heat-affected zone of the welding mark.
Another notable patent is for an electric resistance welded steel pipe designed for torsion beams. This invention specifies a base metal composition that includes precise percentages of carbon, silicon, manganese, titanium, aluminum, niobium, and nitrogen. The metallographic microstructure of the steel pipe is optimized to enhance its performance in torsion applications.
Career Highlights
Hamatani has worked with leading companies in the steel industry, including Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in steel manufacturing.
Collaborations
Throughout his career, Hamatani has collaborated with notable colleagues such as Fuminori Watanabe and Takaaki Fukushi. These partnerships have fostered a creative environment that has led to the development of several key patents.
Conclusion
Hideki Hamatani's contributions to the field of welding and materials science are noteworthy. His innovative patents and collaborations with industry leaders highlight his role as a significant figure in engineering. His work continues to influence advancements in manufacturing processes and materials technology.