This inventor holds 116 USPTO granted patents and 23 published patent applications and 36 EPO patents, primarily in Electrical Steel Sheets (CPC class C21D9-46). Top assignees: Jfe Steel Corporation, Nec Corporation, Nec Lcd Technologies, Ltd.. Active years: 1978-2026.
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Company Filing History:
38 out of 1,953 
30 out of 36,653 
14 out of 568 
Years Active: 1978-2026
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Title: Innovations by Makoto Watanabe in Electrical Steel Technology
Introduction
Makoto Watanabe is a prominent inventor based in Tokyo, Japan. With an impressive portfolio of 108 patents, he has made significant contributions to the field of electrical steel technology. His innovations are crucial in advancing the efficiency and effectiveness of electrical materials used in various industries.
Latest Patents
His latest patents include groundbreaking methods for producing grain-oriented electrical steel sheets. One patent focuses on adjusting the decarburization annealing process to achieve specific concentration differences of elements like O, Si, Al, Mn, and P between the front and back surfaces of the steel sheet. This meticulous control results in superior magnetic properties with a concentration difference maintained within ±5% for certain elements and ±15% for others. Another notable patent describes a grain-oriented electrical steel sheet with an insulating film that enhances magnetic properties and reduces iron loss while ensuring excellent adhesion.
Career Highlights
Makoto Watanabe has worked with leading companies, including NEC Corporation and JFE Steel Corporation. His experience at these organizations has allowed him to refine his expertise in materials engineering and innovative manufacturing processes.
Collaborations
Throughout his career, Watanabe has collaborated with esteemed colleagues such as Toshito Takamiya and Takashi Terashima. These partnerships have fostered an environment of creativity and innovation, resulting in the development of efficient production methods and improved material properties.
Conclusion
In conclusion, Makoto Watanabe's innovative contributions to the field of electrical steel technology exemplify his commitment to advancing materials engineering. His patents not only demonstrate technical proficiency but also significantly enhance the performance of electrical steel sheets, showcasing the importance of continuous innovation in industry.