Location History:
- Kimitsu, JP (1997)
- Futtsu, JP (2000)
- Chiyoda-ku, JP (2012)
- Tokyo, JP (2012 - 2016)
Company Filing History:
8 out of 3,542 
3 out of 1,098 
1 out of 222 Years Active: 1997-2025
Title: Hiroyuki Mimura: Innovator in Electrical Steel Technology
Introduction
Hiroyuki Mimura is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of electrical steel technology. With a total of 11 patents to his name, Mimura has made remarkable advancements that enhance the performance and production methods of electrical steel sheets.
Latest Patents
Among his latest innovations, Mimura has developed a non-oriented electrical steel sheet and a method for producing the same. This invention includes a base metal steel sheet and a composite coating film composed of a Zn-containing phosphate and an organic resin. The composite coating film is formed on the surface of the base metal steel sheet, ensuring that the content of Zn in the composite coating film is 10 mg/m² or more per side. Additionally, the product of the amount of oxygen in the base metal steel sheet and the sheet thickness is maintained at 50 ppm·mm or less. Another notable patent involves a similar non-oriented electrical steel sheet, where the molar ratio of Zn to all metal components in the composite coating film is 10 mol % or more. After boiling the non-oriented electrical steel sheet for 20 minutes in distilled water, the amount of soluble Zn in the distilled water is found to be 1.0 mg/m² or more, following the testing methods outlined in JIS K 0102: 2016.
Career Highlights
Mimura has had a distinguished career, working with leading companies in the steel industry, including Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His work has significantly impacted the production and quality of electrical steel, making him a key figure in this specialized field.
Collaborations
Throughout his career, Mimura has collaborated with notable colleagues such as Yuki Motegi and Takashi Oosawa, contributing to various projects that have advanced electrical steel technology.
Conclusion
Hiroyuki Mimura's innovative work in the field of electrical steel technology has led to significant advancements and numerous patents. His contributions continue to influence the industry and pave the way for future innovations.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.