Patents by Inventor Ken Sonoki

Ken Sonoki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rubber composition and pneumatic tire made therefrom
    Publication number: 20050176858
    Abstract: A rubber composition comprising 100 parts by weight of a rubber ingredient comprising natural rubber and/or a synthetic rubber, 0.1 to 50 parts by weight of at least one nitrogenous compound selected among benzimidazole derivatives having a specific structure and hydrazide derivatives having a specific structure, and 0.1 to 50 parts by weight of a protonic acid; and a pneumatic tire including a member formed from this rubber composition. The rubber composition enables excellent gripping performance while attaining intact productivity. The pneumatic tire produced from this rubber composition, in particular, the tire whose tread has been formed from the composition, has significantly improved gripping performance in high-speed driving, etc.
    Type: Application
    Filed: February 17, 2003
    Publication date: August 11, 2005
    Inventors: Daisuke Nohara, Akinori Oka, Ken Sonoki, Syuichi Kijima, Jun Igarashi