Location History:
- Hoya, JP (1988)
- Hoyao, JP (1993)
- Tokyo, JP (1992 - 2002)
Company Filing History:
6 out of 5,119 
1 out of 1,432 
1 out of 62 Years Active: 1988-2002
Title: Innovations of Seiichiro Iwafune: Pioneering Rubber Compositions for Tires
Introduction
Seiichiro Iwafune, a prominent inventor based in Tokyo, Japan, has made significant strides in the field of rubber technology, particularly focused on tire compositions. With a total of six patents to his name, Iwafune's work reflects his dedication to advancing tire performance through innovative materials.
Latest Patents
One of Iwafune's latest patents involves a unique rubber composition specifically designed for tire treads. This invention features a rubber composition that includes a rubber component and particulates of crystalline syndiotactic-1,2-polybutadiene resin evenly dispersed throughout. These particulates possess an average particle diameter ranging from 1 to 500 micrometers, and the resin itself has a melting point not lower than 110 degrees Celsius. The formulation emphasizes a compounding ratio of 5 to 60 parts by weight of the resin relative to 100 parts by weight of the rubber component. This innovative rubber composition is not only suited for tires but also applicable to various rubber articles. Specifically, for pneumatic tires, the tread is enhanced through the use of this rubber composition, where the matrix portion excluding the resin particulates is preferably formulated as a foamed rubber.
Career Highlights
Throughout his career, Seiichiro Iwafune has had an impactful journey, working with renowned companies such as Bridgestone Corporation and Ube Industries, Inc. His involvement in these organizations allowed him to leverage his expertise in rubber technologies to contribute to significant advancements in tire manufacturing.
Collaborations
Iwafune has collaborated with other esteemed professionals in his field, including Toshiro Iwata and Hiroshi Mouri. These partnerships have fostered a collaborative environment, enabling the exchange of ideas and fostering innovation in rubber compositions.
Conclusion
Seiichiro Iwafune continues to be an influential figure in the realm of tire technology, with his inventive contributions leading to improvements in tire performance and durability. His dedication to innovation, exemplified by his latest patents, demonstrates his commitment to enhancing the industry through groundbreaking advancements in rubber compositions.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.