Patents by Inventor Ichirou Itou

Ichirou Itou 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).

  • Transfer case for four wheel drive vehicle
    Patent number: 6158303
    Abstract: In a transfer case for a four-wheel drive vehicle having a front wheel drive axle assembly which includes a first wheel drive axle shaft arranged in parallel to the engine output shaft and connected to a transmission output shaft through a first helical ring gear meshed with the transmission output gear and a second wheel drive axle assembly which includes a second wheel drive axle arranged in parallel to the engine output shaft and connected to a transfer case through a transfer shaft arranged in parallel to the engine output shaft and equipped with a transfer input gear meshed with a second helical ring gear, the first and second helical ring gears are integrally formed as an integral ring gear and bolted to a differential housing as one whole.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: December 12, 2000
    Assignee: Mazda Motor Corporation
    Inventors: Masaru Shiraishi, Hiroaki Hayashi, Ichirou Itou, Yoichi Hiraoka