Company Filing History:
Years Active: 2013
Title: Saori Haranaka: Innovator in Electrical Steel Technology
Introduction
Saori Haranaka is a prominent inventor based in Fukuoka, Japan. She has made significant contributions to the field of electrical steel technology, particularly in the development of high-strength non-oriented electrical steel sheets. Her innovative work is crucial for enhancing the performance of high rpm motors.
Latest Patents
Saori Haranaka holds a patent for a high-strength non-oriented electrical steel sheet. This invention provides an excellent yield strength for use as an iron core material in high rpm motors. The chemical composition of the steel sheet includes C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less, and Nb: 0.01 to 0.05%. Additionally, it may optionally contain Ni in a preferable content of more than 0.5% and less than 3.0%. The balance consists of Fe and unavoidable impurities. The invention ensures that the Mn and C contents satisfy the condition Mn ≤ 0.6 - 10 × C. The recrystallized portion area fraction is made 50% or greater, with a yield strength in tensile testing of 650 MPa or greater. The average grain diameter viewed in the steel sheet cross-section is made 40 µm or less, and the production process utilizes a hot-rolled sheet with a transition temperature in impact testing of 70°C or less.
Career Highlights
Saori Haranaka is currently employed at Nippon Steel & Sumitomo Metal Corporation, where she continues to innovate in the field of materials science. Her work has been instrumental in advancing the capabilities of electrical steel sheets, which are essential for modern motor applications.
Collaborations
Saori has collaborated with notable colleagues, including Yoshihiro Arita and Hidekuni Murakami. Their combined expertise has contributed to the successful development of advanced materials in the industry.
Conclusion
Saori Haranaka's contributions to electrical steel technology exemplify the impact of innovative thinking in engineering. Her patent for high-strength non-oriented electrical steel sheets is a testament to her dedication and expertise in the field. Her work continues to influence the development of efficient motor technologies.