Sakae Okubo

Title: Sakae Okubo: Innovator in Rubber Technology

Introduction

Sakae Okubo is a notable inventor based in Kobe, Japan. He has made significant contributions to the field of rubber technology, particularly in the development of innovative rubber compositions and production methods. With a total of 3 patents to his name, Okubo continues to push the boundaries of what is possible in this industry.

Latest Patents

One of Okubo's latest patents is focused on a rubber composition for inner liners and pneumatic tires. This invention provides an inner liner rubber composition that boasts an excellent balance of sheet processability and air retention properties. The composition includes a rubber component, a mixture of a fatty acid metal salt and a fatty acid amide, an oil, and a C5 petroleum resin. The rubber component consists of at least 70% by mass of a butyl-based rubber. The mixture is present in an amount of 0.8 to 3.2 parts by mass per 100 parts by mass of the rubber component, while the combined amount of the mixture, oil, and C5 petroleum resin is between 6.0 to 16.0 parts by mass per 100 parts by mass of the rubber component.

Another significant patent by Okubo is a method for producing a rubber member. This method involves supplying a rubber composition to a cylinder in an extruder, extruding the composition while kneading it, compressing the rubber composition, and discharging gas generated from the compressed rubber. The final step includes molding the discharged rubber composition into a predetermined shape.

Career Highlights

Sakae Okubo is currently employed at Sumitomo Rubber Industries Limited, where he applies his expertise in rubber technology. His work has led to advancements that enhance the performance and durability of rubber products.

Collaborations

Throughout his career, Okubo has collaborated with talented individuals such as Hiroshi Ito and Kei Kohara. These partnerships have fostered innovation and contributed to the success of their projects.

Conclusion

Sakae Okubo is a distinguished inventor whose work in rubber technology has led to valuable patents and advancements in the industry. His contributions continue to influence the development of high-performance rubber products.