Location History:
- Tochigi-ken, JP (2016 - 2019)
- Tochigi, JP (2017 - 2020)
- Tokyo, JP (1987 - 2023)
Company Filing History:
49 out of 336 
1 out of 4,979 Years Active: 1987-2025
Areas of Expertise:
Title: The Innovative Mind of Hiroyoshi Kawasaki
Introduction: Hiroyoshi Kawasaki, a prolific inventor based in Tokyo, Japan, has made significant contributions to the field of soldering technology. With an impressive portfolio of 50 patents, Kawasaki continues to push the boundaries of innovation in his industry.
Latest Patents: Among his recent breakthroughs, Kawasaki has developed a solder paste that combines a flux and metal powder. This unique solder paste contains 0.5% to 20.0% by mass of a (carboxyalkyl)isocyanurate adduct, 5.0% to 45.0% by mass of rosin, and a solvent. Furthermore, his innovations include a flux designed for resin flux cored solder used in a distinctive soldering method. This method incorporates a resin flux cored solder that is supplied into a through hole formed along the central axis of a soldering iron. The flux composition consists of volatile rosin (70 wt % to 98 wt %), non-volatile rosin (0 wt % to 10%), and an activator comprising an organic acid, an organohalogen compound, an amine, and an amine hydrohalide salt in specific proportions.
Career Highlights: Throughout his career, Kawasaki has collaborated with leading organizations such as Senju Metal Industry Co., Ltd. and Oki Electric Industry Co., Ltd. His work in these companies has not only advanced their technological capabilities but has also cemented his reputation as a leading innovator in the soldering industry.
Collaborations: Collaborating closely with fellow innovators, including Takahiro Roppongi and Daisuke Soma, Kawasaki has fostered a creative environment that encourages the development of new and innovative soldering methods. Their combined expertise has significantly contributed to the advancement of soldering technologies.
Conclusion: Hiroyoshi Kawasaki's dedication to innovation and invention in soldering technology is evident through his extensive patent portfolio and collaborative efforts. As he continues to make strides in his field, Kawasaki remains a prominent figure in advancing soldering solutions that meet the evolving demands of the industry.