Yutaka Tsubokura

Title: **Inventor Yutaka Tsubokura: Pioneering Innovations in Polymers**

Introduction

Yutaka Tsubokura is a distinguished inventor based in Ichihara, Japan, recognized for his significant contributions to material science, particularly in the field of resin compositions. With a total of four patents to his name, Tsubokura has made strides in developing innovative materials that enhance the performance and reliability of electronic components.

Latest Patents

Among Tsubokura's latest notable innovations is his patent for a polyarylene sulfide resin composition designed for encapsulating electronic parts. This advanced composition includes (A) 20 to 35% by weight of a polyarylene sulfide resin, (B) 60 to 75% by weight of silica, and (C) 1 to 10% by weight of an elastomer. Additionally, it incorporates (D) 0.05 to 1.2 parts by weight of an epoxysilane and/or (E) 0.1 to 3 parts by weight of an epoxy resin, relative to a total of 100 parts by weight of components A, B, and C. This unique formulation provides excellent Physical and Thermal Characteristics (PCT and TCT) and enhanced fluidity, ensuring reliability for sealing electronic components without causing deformation or package breakdown.

Another significant patent showcases his work on a rubber-modified styrene-based resin composition, which further exemplifies his expertise and innovation in creating durable materials suitable for various applications.

Career Highlights

Tsubokura’s career is notably marked by his association with Idemitsu Petrochemical Co., Ltd., where he has been at the forefront of developing innovative resin technologies. His work has not only contributed to the field of electronic components but also positioned him as a key figure in polymer innovations.

Collaborations

Throughout his career, Yutaka Tsubokura has collaborated with esteemed colleagues, including Yoshiyuki Suetsugu and Kazuo Sato. These partnerships have enriched his research and enabled the advancement of groundbreaking technologies in the realm of resin and polymer science.

Conclusion

Yutaka Tsubokura's dedication to innovation and his impressive portfolio of patents underscore his influence in the field of material sciences. His contributions continue to pave the way for advancements in electronic components, cementing his legacy as a leading inventor in the industry.