Location History:
- Kashiwara, JP (2009 - 2010)
- Osaka, JP (2005 - 2012)
Company Filing History:
3 out of 772 
2 out of 2,419 
2 out of 1,800 
Years Active: 2005-2012
Title: Hisashi Harada: Innovator in Steel Technology
Introduction
Hisashi Harada is a prominent inventor based in Kashiwara, Japan. He has made significant contributions to the field of materials science, particularly in the development of steel parts with enhanced fatigue life. With a total of 5 patents to his name, Harada's work has had a substantial impact on the manufacturing and engineering industries.
Latest Patents
One of Hisashi Harada's latest patents is a method for producing a steel part that has a long rolling contact fatigue life. This innovative steel part is designed to increase the life of bearings under severe operating conditions. The composition of the steel includes 0.7% to 1.1% by mass of carbon, 0.5% to 2.0% by mass of silicon, 0.4% to 2.5% by mass of manganese, 1.6% to 5.0% by mass of chromium, and other elements in specific proportions. The steel is hardened and tempered, resulting in a structure that enhances its durability and performance.
Another notable patent focuses on a steel material with excellent rolling fatigue life and the method of producing it. This steel consists of 0.7% to 1.1% carbon, 0.2% to 2.0% silicon, and other elements, treated through quenching and tempering. The resulting steel exhibits superior performance, extending the life of bearings even in more severe environments.
Career Highlights
Throughout his career, Hisashi Harada has worked with notable companies such as Koyo Seiko Company, Ltd. and Jtekt Corporation. His expertise in steel technology has been instrumental in advancing the capabilities of these organizations in the manufacturing sector.
Collaborations
Hisashi Harada has collaborated with esteemed colleagues, including Masao Goto and Takashi Iwamoto. These partnerships have contributed to the development of innovative solutions in the field of materials science.
Conclusion
Hisashi Harada's contributions to steel technology and his innovative patents have significantly advanced the industry. His work continues to influence the development of materials that enhance the performance and longevity of mechanical components.