Tomohisa Kawanago

Title: The Innovations of Tomohisa Kawanago

Introduction

Tomohisa Kawanago, an esteemed inventor based in Tochigi, Japan, has made significant contributions to the field of soldering materials. With a total of seven patents to his name, Kawanago is recognized for his innovative approaches in developing flux and solder paste options that enhance soldering processes.

Latest Patents

Kawanago's most notable patents include a novel flux and solder paste that achieve low residue levels, which is crucial for ensuring solder wettability and maintaining the holding properties of solder balls. His flux incorporates an organic acid mixture, containing 1-15% by weight of an organic acid with ten or more carbon atoms, 50-90% by weight of isobornyl cyclohexanol, and 5-45% by weight of another solvent. This specific formulation allows for application without the need for washing. Additionally, he developed a rosin-free flux that consists of 50-90% by mass of 2,4-diethyl-1,5-pentanediol, along with a solvent and an organic acid, emphasizing its efficiency in soldering applications without requiring organic detergent washing.

Career Highlights

Kawanago has established a reputable career within companies such as Senju Metal Industry Co., Ltd. and Sumitomo Bakelite Company Limited. His work has significantly advanced the field of soldering materials, showcasing a strong focus on innovation and practical application.

Collaborations

Throughout his career, Kawanago has collaborated with notable individuals, including Takahiro Nishizaki and Masato Shiratori. These partnerships have fostered an environment of shared knowledge, driving the development of advanced soldering materials.

Conclusion

With seven patents reflecting his ingenuity, Tomohisa Kawanago stands out as a leading figure in the innovation of flux and solder paste technologies. His contributions have not only improved soldering techniques but have also paved the way for future advancements in the industry.