Company Filing History:
Years Active: 2016
Title: Yasuaki Kokubu: Innovator in Lead-Free Solder Alloys
Introduction
Yasuaki Kokubu is a notable inventor based in Kurume, Japan. He has made significant contributions to the field of materials science, particularly in the development of lead-free solder alloys. His innovative work addresses critical issues in soldering technology, making it safer and more efficient.
Latest Patents
Kokubu holds a patent for a lead-free solder alloy that has improved surface properties. This alloy suppresses minute irregularities and shrinkage cavities, which are common issues in soldering applications. The composition of this alloy consists essentially of Ag: 0.1-1.5%, Bi: 2.5-5.0%, Cu: 0.5-1.0%, and optionally Ni: 0.015-0.035% and/or at least one of Ge and Ga: 0.0005-0.01%, with the remainder being Sn and unavoidable impurities. This innovation is crucial for enhancing the reliability and performance of electronic components.
Career Highlights
Kokubu is associated with Senju Metal Industry Co., Ltd., a company known for its advancements in solder materials. His work has not only contributed to the company's reputation but has also positioned him as a key figure in the industry. His dedication to research and development has led to significant improvements in solder technology.
Collaborations
Kokubu has collaborated with notable colleagues such as Yuji Kawamata and Minoru Ueshima. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Yasuaki Kokubu's contributions to lead-free solder alloys exemplify the importance of innovation in materials science. His work continues to influence the industry, promoting safer and more effective soldering solutions.