Patents by Inventor Masazumi Kashiwabara

Masazumi Kashiwabara 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).

  • Loop-style continuous ion exchange unit
    Patent number: 3993562
    Abstract: A loop-style continuous ion exchange unit having a liquid treating section, a material weighing and transfer section, a regeneration section, a washing section and a back-washing section, all of which are connected together in a closed loop. The back-washing section is above the liquid treating section to enable material to fall by gravity into the liquid treating section. The liquid treating section is located above the material weighing and transfer section so that material can fall by gravity into the material weighing and transfer section. The washing area has an outlet located above the back-washing area so that washed material may flow by gravity to the back-washing area. Further, an expansion space is provided above the washing area to compensate for expansion of the material when it is washed.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: November 23, 1976
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masazumi Kashiwabara, Wataru Iida, Hisashi Akatsuka