Location History:
- Nagoya, JP (2005 - 2010)
- Shizuoka-ken, JP (2010)
- Tokyo, JP (1987 - 2022)
Company Filing History:
10 out of 182 
8 out of 19,748 
7 out of 140 
Years Active: 1987-2022
Title: Innovations of Naoki Yamashita in Aluminum Alloy Brazing Technology
Introduction
Naoki Yamashita, based in Tokyo, Japan, is a distinguished inventor with a portfolio of 24 patents. His expertise lies in the development of advanced aluminum alloy materials, particularly for applications in heat exchangers.
Latest Patents
Two of his latest patents showcase innovations in aluminum alloy brazing sheets for heat exchangers. The first patent describes a three-layer material comprising a brazing material layer, an intermediate layer, and a core material. The intermediate layer is crafted from an aluminum alloy that can include manganese (Mn), silicon (Si), iron (Fe), and copper (Cu), where Al forms the balance along with inevitable impurities. The core material also features an aluminum alloy that includes Si, Fe, Cu, and Mn, with Al as the primary component. The brazing material layer itself consists of an aluminum alloy rich in Si.
The second patent presents a four-layer aluminum alloy brazing sheet, which contains an intermediate layer made from an aluminum alloy with specific mass percentages of Mn, Si, Fe, and Cu, again with Al being the principal component. Additionally, each of the air-side and internal brazing material layers are formulated from an aluminum alloy that contains Si in varying mass percentages, thereby improving the heat exchange performance.
Career Highlights
Naoki Yamashita's contributions to the field have been significantly enriched by his tenure at prominent companies such as UACJ Corporation and Denso Corporation. His work in these organizations has provided him with the platform to innovate and push the boundaries of aluminum alloy technologies.
Collaborations
Throughout his career, Naoki has collaborated with notable colleagues, including Yasunaga Itoh and Yuji Hisatomi. These partnerships have fostered an exchange of ideas and expertise that has furthered the field of aluminum alloy brazing.
Conclusion
Naoki Yamashita’s innovative contributions to aluminum alloy technology underscore the importance of advanced materials in modern engineering applications. His numerous patents reflect a dedication to improving heat exchanger efficiency, which is crucial in various industrial applications. As he continues to innovate, the potential for even greater advancements in this field remains vast.