Yoshinobu Ohnuma

Title: The Innovations of Yoshinobu Ohnuma

Introduction

Yoshinobu Ohnuma is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of epoxy resins, holding a total of nine patents. His work has been instrumental in advancing materials used in various applications, particularly in the electronics industry.

Latest Patents

Ohnuma's latest patents include a composition of epoxy resin and triazine-formaldehyde-phenol resin. He has developed a high molecular weight epoxy resin obtained through the polymerization reaction of a difunctional epoxy resin with a dihydric phenol compound. This compound contains 70-100% by weight of bisphenol S and is characterized by a weight average molecular weight ranging from 10,000 to 200,000. Additionally, he has created a resinous composition for printed circuit boards, which comprises the high molecular weight epoxy resin, an alternative epoxy resin, and a curing agent as essential components.

Career Highlights

Throughout his career, Yoshinobu Ohnuma has worked with notable companies such as Shell Oil Company and Resolution Performance Products LLC. His experience in these organizations has allowed him to refine his expertise in resin technology and contribute to innovative solutions in the industry.

Collaborations

Ohnuma has collaborated with several professionals in his field, including Mareki Miura and Takao Fukuzawa. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in resin technology.

Conclusion

Yoshinobu Ohnuma's contributions to the field of epoxy resins and his innovative patents highlight his importance as an inventor. His work continues to influence the development of materials used in various applications, particularly in electronics.