This inventor holds 34 USPTO granted patents and 3 published patent applications, plus 10 CIPO patents and 14 EPO patents, primarily in High-Strength Steel. Top assignees: Nippon Steel Corporation, Nippon Steel Sumitomo Metal Corporation, Sony Corporation. Active years: 1990-2025.
Company Filing History:
18 out of 3,701 
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Years Active: 1990-2025
Areas of Expertise:
Title: Innovations of Kohichi Sano: A Leader in High-Strength Steel Development
Introduction
Kohichi Sano is an esteemed inventor based in Tokyo, Japan, recognized for his significant contributions to the field of materials science, specifically in high-strength steel development. With a remarkable portfolio of 32 patents, Sano has established himself as a leading innovator in the industry.
Latest Patents
Sano's recent innovations include two notable patents focusing on steel sheet technology. The first patent details a steel sheet and method for manufacturing the same. This steel sheet features a predetermined chemical composition, with specific proportions of plate martensite, a fine average grain size, minimal solid solution carbon content, and controlled P concentration at grain boundaries. This innovative design results in a high-strength steel sheet characterized by excellent moldability and impact resistance.
The second patent outlines the characteristics of a high-strength steel sheet that excels in moldability and impact resistance. It includes a chemical composition comprising carbon, silicon, manganese, phosphorus, sulfur, aluminum, nitrogen, oxygen, and iron. The microstructure of this steel sheet, particularly in a specified thickness range from the surface, is composed of acicular ferrite, an island-shaped hard structure with residual austenite, and aggregated ferrite, providing exceptional mechanical properties.
Career Highlights
Kohichi Sano has had an illustrious career, working with notable companies such as Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His experience in these leading organizations has greatly contributed to his success as an inventor and innovator in the steel industry.
Collaborations
Throughout his career, Sano has collaborated with esteemed professionals, including Riki Okamoto and Nobuhiro Fujita. These partnerships have facilitated the exchange of ideas and fostered the innovative development of high-strength steel technologies.
Conclusion
Kohichi Sano's contributions to high-strength steel development are undoubtedly significant. With his extensive patent portfolio and collaborations within the industry, he continues to push the boundaries of innovation, enhancing the performance and application of steel materials in various sectors. His work exemplifies the impact of dedicated inventors in advancing technology and improving material properties.