Patents by Inventor Yuuji Isayama

Yuuji Isayama 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).

  • Manufacturing apparatus with air cleaning device
    Patent number: 4723480
    Abstract: A manufacturing apparatus equipped with product transfer means is arranged along the flow of products and provided with an air cleaning device. A partition panel is provided the downstream side of the clean air blow-off vent of the air cleaning device so as to form a clean air passageway and prevent dust from penetrating into the passageway, so that goods are manufactured and transferred in the cleaned air passageway.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: February 9, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Katsuhito Yagi, Yuuji Isayama, Tatsuo Yoshitomi