Nobuaki Otsuki is a notable inventor based in Suita, Japan, recognized for his contributions to the field of curable resins and solder resist technologies. With a total of four patents to his name, Otsuki has made significant advancements that enhance the performance and reliability of various materials used in electronics and manufacturing.

Latest Patents

Otsuki's latest patents include a curable resin and its production process. This innovative resin is created by reacting a polybasic anhydride with a reaction product of an epoxy resin and a phenol compound that has an alcoholic hydroxyl group and an unsaturated monobasic acid. The epoxy resin used in this process has a softening point of 93°C or higher, ensuring its effectiveness in various applications. Another significant patent involves a solder resist and its dry film, which boasts adequate sensitivity at photo-irradiation and alkali developability. This solder resist forms a cured product that exhibits excellent dimensional stability against temperature changes, water resistance, electrical insulation, and thermal cycle test resistance. The formulation includes an acid-modified vinyl ester synthesized from an epoxy compound, a phenol compound, an unsaturated monobasic acid, and a polybasic acid anhydride.

Career Highlights

Throughout his career, Nobuaki Otsuki has worked with prominent companies such as Nippon Shokubai Co., Ltd. and Taiyo Holdings Co., Ltd. His experience in these organizations has allowed him to refine his expertise in material science and innovation.

Collaborations

Otsuki has collaborated with notable colleagues, including Toshio Awaji and Akihiko Fukada. These partnerships have contributed to the development of his patented technologies and have fostered a collaborative environment for innovation.

Conclusion

Nobuaki Otsuki's work in curable resins and solder resist technologies showcases his commitment to advancing material science. His patents reflect a deep understanding of chemical processes and their applications in modern technology. Otsuki's contributions continue to influence the industry and pave the way for future innovations.

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