Location History:
- Chiba, JP (1987 - 1992)
- Kobe, JP (1980 - 1994)
- Okayama, JP (1995)
Company Filing History:
Years Active: 1980-1995
Title: Yoshiaki Iida: Innovator in Electromagnetic Steel Production
Introduction
Yoshiaki Iida is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of electromagnetic steel production, holding a total of 11 patents. His innovative methods have advanced the manufacturing processes of non-oriented and grain-oriented silicon steel sheets.
Latest Patents
One of Yoshiaki Iida's latest patents is a method of producing a non-oriented electromagnetic steel strip. This method involves subjecting a low-carbon steel slab to hot-rolling, cold rolling at a small reduction, and first annealing. Specific conditions are employed to improve magnetic flux density and surface appearance by coarsening the crystalline structure. The slab is cold-rolled at a reduction of about 5 to 15% and subjected to first annealing by heating at a rate of about 3°C/sec or higher, holding the strip for about 5 to 30 seconds at 850°C. This process controls the crystal grain size to about 100 to 200 micrometers after first annealing.
Another notable patent is a method of producing a grain-oriented silicon steel sheet that aims to lower iron loss. This method involves hot rolling a silicon steel slab containing about 2.0 to 4.0 weight % of silicon and an inhibitor-forming amount of sulfur or selenium. The cold rolling process is performed with intermediate annealing, and the resultant steel sheet undergoes decarburization and purification annealing. An oxide layer is generated during the cold rolling step, which is carefully managed to ensure optimal results.
Career Highlights
Yoshiaki Iida is associated with Kawasaki Steel Corporation, where he has been instrumental in developing advanced steel production techniques. His work has not only contributed to the efficiency of steel manufacturing but has also enhanced the quality of the final products.
Collaborations
Yoshiaki has collaborated with notable coworkers, including Michiro Komatsubara and Isao Matoba. Their combined expertise has fostered innovation and progress in the field of steel production.
Conclusion
Yoshiaki Iida's contributions to the field of electromagnetic steel production are noteworthy. His innovative methods and patents have significantly impacted the industry, showcasing his dedication to advancing technology in steel manufacturing.
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.