Yasushi Okada

Title: Innovations of Yasushi Okada

Introduction

Yasushi Okada is a prominent inventor based in Fukushima-ken, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced molded articles and aliphatic polyesters. With a total of 6 patents to his name, Okada continues to push the boundaries of innovation.

Latest Patents

One of his latest patents is titled "Molded article containing stacked carbon fiber and method for producing same." This invention provides a molded article that possesses both sufficient strength and peel resistance, making it especially suitable as a heat insulating material for high-temperature furnaces. The carbon fiber-containing stacked molded article comprises a substrate made of first carbon fibers piled together, along with a woven fabric layer located on at least one surface of the substrate. This layer is composed of carbon fiber spun yarns that include second carbon fibers with an average fiber diameter of 12 µm or less, and third carbon fibers with an average fiber diameter exceeding 12 µm.

Another notable patent is the "Production process of aliphatic polyester." This process involves subjecting a cyclic ester to ring-opening polymerization. It includes adding water to a cyclic ester that has been purified to ensure a water content of at most 60 ppm. This method effectively controls the overall proton concentration in the cyclic ester, thereby influencing at least one physical property among melt viscosity, molecular weight, and yellowness index of the resulting aliphatic polyester.

Career Highlights

Yasushi Okada is currently employed at Kureha Corporation, where he continues to innovate and develop new materials. His work has garnered attention in the industry, and he is recognized for his expertise in polymer science and composite materials.

Collaborations

Throughout his career, Okada has collaborated with notable colleagues, including Hiroyuki Sato and Fumio Akutsu. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Yasushi Okada's contributions to the field of materials science are significant and impactful. His innovative patents reflect his dedication to advancing technology and improving material properties. As he continues his work at Kureha Corporation, the future looks promising for further innovations from this talented inventor.