Company Filing History:
5 out of 1,100 
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Years Active: 2001-2011
Title: Hiroyuki Yamashita: Innovator in Tubular Member Technology
Introduction
Hiroyuki Yamashita is a notable inventor based in Shimonoseki, Japan. He has made significant contributions to the field of engineering, particularly in the development of tubular members with flanges. With a total of 7 patents to his name, Yamashita's work showcases his innovative approach to manufacturing and design.
Latest Patents
One of his latest patents is focused on an axial member with a flange, specifically designed for applications such as bumper stays. This invention features a flange with an outer diameter larger than the diameter of the axial section, which is formed through electromagnetic forming without excessive expansion. The design includes an axial member made from a tubular aluminum alloy extrudate, which is joined to a flange member at one end. The axial member integrates an end flange that is smaller in area than the flange member itself. The flange member contains a hole and a cylindrical hole flange at the edge, allowing the axial member to fit snugly. This innovative method of production involves inserting an untreated pipe into the hole of the flange member and expanding it using electromagnetic forming.
Career Highlights
Yamashita has worked with prominent companies, including Kobe Steel, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various engineering projects. His work has been instrumental in advancing the technology related to tubular members.
Collaborations
Throughout his career, Yamashita has collaborated with notable colleagues such as Masakazu Hirano and Yoshihaya Imamura. These partnerships have fostered a creative environment that has led to the development of innovative solutions in their field.
Conclusion
Hiroyuki Yamashita's contributions to the engineering sector, particularly in tubular member technology, highlight his innovative spirit and dedication to advancing manufacturing techniques. His patents reflect a commitment to excellence and a forward-thinking approach to design.