Location History:
- Aichi, JP (1987)
- Nagoya, JP (1986 - 1988)
Company Filing History:
5 out of 129 
2 out of 140 Years Active: 1986-1988
Title: Michiki Hagiwara: Innovator in Aluminum Brazing Alloys
Introduction
Michiki Hagiwara is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of aluminum brazing materials, particularly for use in heat exchangers. With a total of 5 patents, Hagiwara's work has advanced the technology and efficiency of aluminum assembly processes.
Latest Patents
Hagiwara's latest patents focus on aluminum brazing alloys designed for assembling aluminum heat exchangers. One of his innovations includes a formulation consisting of 4.5 to 13.5% silicon, from 0.005% to less than 0.1% strontium, and the balance primarily aluminum. This alloy can optionally contain elements such as magnesium, copper, and zinc. These brazing alloys are engineered to provide high-strength joints with a refined microstructure, allowing for effective brazing operations without detrimental cavities. Such properties make them particularly suitable for the fabrication of superhigh-pressure heat exchangers.
Another patent details aluminum brazing alloys that consist of 4.5 to 13.5% silicon, 0.05 to 0.5% calcium, and primarily aluminum. This formulation may also include magnesium or copper components. The resulting alloys exhibit excellent brazability and high-strength joints, further enhancing their application in superhigh-pressure heat exchangers.
Career Highlights
Throughout his career, Michiki Hagiwara has worked with prominent companies such as Sumitomo Precision Products Co., Ltd. and Sumitomo Light Metal Industries, Ltd. His experience in these organizations has contributed to his expertise in aluminum brazing technologies.
Collaborations
Hagiwara has collaborated with notable coworkers, including Keizo Nanba and Shosuke Iwasaki. Their combined efforts have fostered innovation in the field of aluminum brazing.
Conclusion
In summary, Michiki Hagiwara is a distinguished inventor whose work in aluminum brazing alloys has significantly impacted the industry. His innovative patents and collaborations highlight his commitment to advancing technology in heat exchanger fabrication.