Company Filing History:
2 out of 3 
1 out of 2 
1 out of 1 Years Active: 2002-2018
Title: Innovations of Inventor Tadashi Sawamura
Introduction
Tadashi Sawamura, a notable inventor based in Tokyo, Japan, has made significant contributions to the field of soldering technology. With a remarkable portfolio of five patents, he has established himself as a key player in innovations that enhance electronic component bonding.
Latest Patents
Among his latest innovations are two important patents. The first is a solder paste specifically designed for bonding micro components. This innovative solder paste effectively suppresses electro-migration at solder bonding areas. It is composed of a powdered lead-free soldering alloy that includes copper (Cu) at concentrations between 0.1% to 3.0% by weight and indium (In) ranging from 0.5% to 8.0% by weight, in addition to tin (Sn). The solder paste also integrates a pasty or liquid flux, ensuring an effective mix that enhances performance. Additional elements such as silver, antimony, nickel, cobalt, iron, manganese, chromium, bismuth, zinc, phosphorus, gallium, and germanium can be introduced to improve strength, reduce melting points, and act as anti-oxidants.
The second significant patent relates to a soldering alloy that protects the iron tips of soldering irons from deterioration. This alloy comprises 0.3% to 3% by weight of copper, 0.01% to 0.1% by weight of iron, and 0.001% to 0.004% by weight of gallium, with the remainder being tin and any unavoidable impurities.
Career Highlights
Tadashi Sawamura has worked with Tokyo First Trading Company, where he applied his expertise in soldering technology and innovations. Through his work, he has developed solutions that have positively impacted the electronics manufacturing sector.
Collaborations
During his career, Tadashi has collaborated with distinguished individuals such as Hisashi Komiya and Takeo Igarashi. These partnerships have furthered his innovations and contributed to the development of efficient soldering techniques.
Conclusion
Tadashi Sawamura stands as an influential inventor whose work in soldering technology showcases the potential of innovations in enhancing electronic reliability. His patents not only address current challenges in the industry but also pave the way for future advancements. As he continues to contribute to the field, his insights and inventions will undoubtedly shape the landscape of electronic component manufacturing.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.