Location History:
- Tokyo, JP (1993)
- Hikari, JP (1995 - 1998)
Company Filing History:
3 out of 18 
1 out of 3,562 Years Active: 1993-1998
Title: The Innovative Contributions of Takeji Kagami
Introduction
Takeji Kagami, an accomplished inventor from Hikari, Japan, has made significant contributions to the field of welding technology through his inventive patents and processes. With a total of three patents to his name, Kagami has focused on methods that enhance the quality and efficiency of manufacturing welding materials.
Latest Patents
One of Kagami's most notable inventions is the process for manufacturing welding wire. This innovative method involves creating seamless flux-cored welding wires ranging from 0.8 to 4 mm in diameter that exhibit excellent cracking resistance and minimal diffusible hydrogen. The process entails heating a straight wire of 8 to 15 mm in diameter using direct electric heating, followed by controlled cooling and drawing to achieve the desired diameter. The resulting welding wire allows for a weld that contains no more than 5 ml of diffusible hydrogen per 100 g of deposited metal, making it exemplary for welding high-tensile steels and structures under significant restraints.
Another significant patent pertains to the manufacturing of tubes filled with powdery and granular substances. This innovative method includes forming a metal strip into a tube while feeding core substances, followed by high-frequency welding to secure the edges. The top layer of the core is specially designed with materials that have low magnetic susceptibility to ensure efficient processing without interference during welding.
Career Highlights
Takeji Kagami has had an illustrious career at prominent organizations such as Nippon Steel Welding Products and Engineering Co., Ltd. and Nippon Steel Corporation. His work within these companies has greatly influenced the development of advanced welding techniques that continue to shape the industry today.
Collaborations
Throughout his professional journey, Kagami has collaborated with esteemed colleagues, including Nobuo Araki and Iwao Yamada. These collaborations have been instrumental in enhancing his research and the application of his patented technologies in the welding sector.
Conclusion
Takeji Kagami's innovative work and patents have positioned him as a pivotal figure in the field of welding. His contributions not only reflect his expertise but also illustrate the importance of inventiveness in addressing industry challenges. As he continues to pioneer advancements in welding technology, the impact of his inventions will surely resonate within the industry for years to come.