This inventor holds 2 USPTO granted patents. Top assignees: Sumitomo Electric Engineering, Ltd., Sumitomo Electric Industries, Limited. Active years: 1999-2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hyogo, JP (1999)
- Itami, JP (2002)
Company Filing History:
1 out of 1 
1 out of 10,641 
Years Active: 1999-2002
Title: Norihito Yamao: Innovator in Heat-Resistant Alloys
Introduction
Norihito Yamao is a distinguished inventor based in Itami, 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, Yamao's work has garnered attention for its innovative approaches to enhancing the performance of materials under extreme conditions.
Latest Patents
Yamao's latest patents include a heat-resistant alloy wire and a process for finishing steel wire. The heat-resistant alloy wire is an Ni-based or Ni–Co-based material that excels in resistance to sag at high temperatures ranging from 600 to 700 °C. This wire is particularly suitable for spring materials and contains specific weight percentages of carbon, chromium, aluminum, and other elements to achieve its desired properties. The wire boasts a tensile strength of not less than 1,400 N/mm and less than 1,800 N/mm, with a crystal-grain aspect ratio of 1.2 to 10.
The second patent focuses on a spring steel wire that achieves a tensile strength of at least 2,000 N/mm² and a surface roughness of not more than 5 μm in terms of Rz. This wire consists of a carefully balanced composition of carbon, silicon, manganese, chromium, nitrogen, and other elements, ensuring high performance and durability.
Career Highlights
Throughout his career, Yamao has worked with notable companies such as Sumitomo Electric Industries, Limited and Sumitomo Electric Engineering, Ltd. His experience in these organizations has allowed him to refine his expertise in materials engineering and contribute to various innovative projects.
Collaborations
Yamao has collaborated with esteemed colleagues, including Teruyuki Murai and Hiromu Izumida. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field of heat-resistant materials.
Conclusion
Norihito Yamao's contributions to the field of materials science, particularly through his patents on heat-resistant alloys, highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and inspire future developments in material engineering.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile