This inventor holds 16 USPTO granted patents, primarily in Cold Rolled Steel. Top assignees: Nippon Steel Corporation, Sony Corporation. Active years: 1977-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kimitsu, JA (1977)
- Chiba, JP (1984 - 1991)
- Futtsu, JP (1996 - 1999)
- Kimitsu, JP (1981 - 2000)
Company Filing History:
16 out of 3,724 
1 out of 58,148 
Years Active: 1977-2000
Areas of Expertise:
Title: Kazuo Koyama: Innovator in High-Strength Steel Technology
Introduction
Kazuo Koyama, an accomplished inventor based in Futtsu, Japan, has made significant strides in the field of material engineering, particularly in high-strength steel sheets. With a remarkable portfolio of 16 patents, Koyama's innovations have contributed to advancements in various industrial applications.
Latest Patents
Koyama's latest patents focus on the development of a high-strength cold rolled steel sheet and a high-strength plated steel sheet that exhibit enhanced geomagnetic shielding properties. These properties include a high relative permeability in a D.C. magnetic field around 0.3 Oe. The patented process involves the production of an ultra-low carbon steel, which contains a carbon content of not more than 0.0060%. This steel undergoes solid solution strengthening using silicon and magnesium, eliminating reliance on precipitation strengthening. Koyama's innovative approach includes deoxidizing the steel with silicon or aluminum while adding boron to inhibit AlN precipitation. The steel is then subjected to finish rolling and cold rolling techniques to refine its metallographic structure, thus enhancing its application potential as an explosion-proof band or an outer magnetic shielding material for television cathode-ray tubes.
Career Highlights
Kazuo Koyama's career has been highlighted by his tenure at notable companies such as Nippon Steel Corporation and Sony Corporation. His experiences in these leading firms have greatly influenced his research and development endeavors, facilitating his contributions to high-strength materials.
Collaborations
Throughout his career, Koyama has collaborated with esteemed colleagues like Hiroshi Katoh and Atsushi Itami. These partnerships have fostered a synergistic approach to innovation and development within the industry.
Conclusion
In conclusion, Kazuo Koyama stands out as a visionary inventor whose work in high-strength steel technology has set new standards in the field. With his impressive portfolio of patents and valuable collaborations, Koyama continues to shape the future of materials engineering, ensuring advancements that benefit various industrial applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile