Patents by Inventor Masakuni Soejima

Masakuni Soejima 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).

  • Suction unit for use in an electric vacuum cleaner and electric vacuum cleaner employing same
    Patent number: 7257852
    Abstract: A suction unit for use in an electric vacuum cleaner and an electric vacuum cleaner includes a floor nozzle and a mini nozzle detachably secured to the floor nozzle. When a suction head of the mini nozzle is secured to the floor nozzle, an air communication is provided therebetween. Further, the mini nozzle is provided with an ion generating unit.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 21, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Shibuya, Koichi Fujita, Masakuni Soejima
  • Vacuum cleaner having an ion generator
    Patent number: 7174593
    Abstract: A vacuum cleaner includes an electric blower for generating a suction air flow, a suction head in communication with the electric blower for drawing in dirt, a filter bag communication with the electric blower for capturing and collecting dirt, an exhaust unit for discharging exhaust air from the electric blower to atmosphere, and an ion generator for generating negative ions and/or positive ions. The ion generator is placed between the suction head and the filter bag.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: February 13, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masakuni Soejima, Yasushi Kondo, Yoshihiro Taniguchi, Ryohei Yoshida, Masaki Shibuya, Seiji Yamaguchi, Saburo Kajikawa, Hidenori Kitamura, Hiroyuki Uratani, Kouichi Fujita, Haruka Ishikawa
  • Vacuum cleaner and suction nozzle employed therein
    Patent number: 7131164
    Abstract: A suction nozzle for use in a vacuum cleaner includes a floor nozzle and a mini nozzle having a suction head, a rotatable joint, and joint, to be detachably secured in the floor nozzle. Either of the suction head and the rotatable joint or the rotatable joint and the joint is vertically joined and the other rotatably joined. Moreover, the suction head is unrotatably secured onto the floor nozzle, and forms an air communication with the floor nozzle.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: November 7, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Uratani, Masakuni Soejima, Koichi Fujita, Masaki Shibuya, Hidetoshi Imai, Masaki Takahashi, Masaichi Fukushima, Hiroyuki Senoo
  • Suction unit for use in an electric vacuum cleaner and electric vacuum cleaner employing same
    Publication number: 20040261217
    Abstract: A suction unit for use in an electric vacuum cleaner and an electric vacuum cleaner includes a floor nozzle and a mini nozzle detachably secured to the floor nozzle. When a suction head of the mini nozzle is secured to the floor nozzle, an air communication is provided therebetween. Further, the mini nozzle is provided with an ion generating unit.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 30, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Shibuya, Koichi Fujita, Masakuni Soejima
  • Vacuum cleaner and suction nozzle employed therein
    Publication number: 20030217431
    Abstract: A suction nozzle for use in a vacuum cleaner includes a floor nozzle and a mini nozzle having a suction head, a rotatable joint, and joint, to be detachably secured in the floor nozzle. Either of the suction head and the rotatable joint or the rotatable joint and the joint is vertically joined and the other rotatably joined. Moreover, the suction head is unrotatably secured onto the floor nozzle, and forms an air communication with the floor nozzle.
    Type: Application
    Filed: May 22, 2003
    Publication date: November 27, 2003
    Applicant: Matsushita Electric Industrial Co. , Ltd.
    Inventors: Hiroyuki Uratani, Masakuni Soejima, Koichi Fujita, Masaki Shibuya, Hidetoshi Imai, Masaki Takahashi, Masaichi Fukushima, Hiroyuki Senoo
  • Vacuum cleaner having an ion generator
    Publication number: 20030140444
    Abstract: A vacuum cleaner includes an electric blower for generating a suction air flow, a suction head in communication with the electric blower for drawing in dirt, a filter bag communication with the electric blower for capturing and collecting dirt, an exhaust unit for discharging exhaust air from the electric blower to atmosphere, and an ion generator for generating negative ions and/or positive ions. The ion generator is placed between the suction head and the filter bag.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 31, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masakuni Soejima, Yasushi Kondo, Yoshihiro Taniguchi, Ryohei Yoshida, Masaki Shibuya, Seiji Yamaguchi, Saburo Kajikawa, Hidenori Kitamura, Hiroyuki Uratani, Kouichi Fujita, Haruka Ishikawa