Patents Assigned to Nitta Co., Ltd.
  • Air cleaner
    Patent number: 4846859
    Abstract: An air cleaner comprising a thin lightweight fan module having at least one fan, at least one casing containing one fan therein and at least one housing containing one casing therein; a thin lightweight air filter module having an air filter; and an air flow moderator disposed between the fan module and the air filter module.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: July 11, 1989
    Assignee: Nitta Co., Ltd.
    Inventors: Koji Nobiraki, Yoshiharu Metoku, Hisato Uragami, Toshitaka Tamaki, Keiji Yoshimura, Kazuhiko Otsuka
  • Air cleaner
    Patent number: 4790863
    Abstract: An air cleaner comprising a thin lightweight fan module having at least one fan, at least one casing containing one fan therein and at least one housing containing one casing therein; a thin lightweight air filter module having an air filter; and an air flow moderator disposed between the fan module and the air filter module.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: December 13, 1988
    Assignee: Nitta Co., Ltd.
    Inventors: Koji Nobiraki, Yoshiharu Metoku, Hisato Uragami, Toshitaka Tamaki, Keiji Yoshimura, Kazihiko Otsuka