Patents by Inventor Tomomi Mitani

Tomomi Mitani 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).

  • Patent number: 7765636
    Abstract: A vacuum cleaner includes a dust chamber, a dust bag provided in the dust chamber, and an electric blower for generating suction air flow for drawing and collecting dust and dirt in the dust bag. A deodorant is supplied into the dust bag by the suction air flow and directly attached to the dust and dirt. The deodorant has a granule or powder shape.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: August 3, 2010
    Assignee: Panasonic Corporation
    Inventors: Masanobu Hirota, Hiroyuki Kayama, Makoto Murakami, Koichi Nakano, Hidenori Kitamura, Tomomi Mitani, Takaaki Ogawa, Ryouhei Yoshida
  • Patent number: 7306640
    Abstract: A vacuum cleaner includes a first dirt separation unit and a second dirt separation unit. The first dirt separation unit has a first inlet port through which a suction air stream including dirt particles is introduced thereinto, and the second dirt separation unit has a second inlet port through which the air stream introduced into the first dirt separation unit is introduced into the second dirt separation. The first and the second inlet port are disposed such that they are not registered with each other. Accordingly, the dirt particles suctioned are separated in two stages, thereby decreasing the possibility of occlusion of a filter and rapid deterioration of a suction force.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: December 11, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiki Kuroki, Seiji Yamaguchi, Tomonori Kato, Masashi Okushima, Yuichi Shimizu, Tomomi Mitani, Hiroshi Mori, Toru Odachi, Yoshiaki Onishi, Hidenori Kitamura, Toshifumi Miyahara, Takaaki Ogawa, Hirokazu Nagaoka
  • Publication number: 20060191416
    Abstract: A vacuum cleaner includes a dust chamber; a dust bag provided in the dust chamber; and an electric blower for generating suction air flow for drawing and collecting dust and dirt in the dust bag. A deodorant is supplied into the dust bag by the suction air flow and directly attached to the dust and dirt, the deodorant having a granule or powder shape.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 31, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masanobu Hirota, Hiroyuki Kayama, Makoto Murakami, Koichi Nakano, Hidenori Kitamura, Tomomi Mitani, Takaaki Ogawa, Ryouhei Yoshida
  • Publication number: 20040128791
    Abstract: A vacuum cleaner includes a first dirt separation unit and a second dirt separation unit. The first dirt separation unit has a first inlet port through which a suction air stream including dirt particles is introduced thereinto, and the second dirt separation unit has a second inlet port through which the air stream introduced into the first dirt separation unit is introduced into the second dirt separation. The first and the second inlet port are disposed such that they are not registered with each other. Accordingly, the dirt particles suctioned are separated in two stages, thereby decreasing the possibility of occlusion of a filter and rapid deterioration of a suction force.
    Type: Application
    Filed: October 23, 2003
    Publication date: July 8, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiki Kuroki, Seiji Yamaguchi, Tomonori Kato, Masashi Okushima, Yuichi Shimizu, Tomomi Mitani, Hiroshi Mori, Toru Odachi, Yoshiaki Onishi, Hidenori Kitamura, Toshifumi Miyahara, Takaaki Ogawa, Hirokazu Nagaoka
  • Patent number: 5249331
    Abstract: A floor nozzle for a vacuum cleaner of the present invention has an auxiliary agitator provided outside the lateral wall of a main body of the nozzle. The auxiliary agitator is covered by a protecting cover, so as to ensure safety during use. Moreover, a stirring member, a dust outlet and confirmation holes allow dust to be discharged out of the main body more easily and smoothly, while preventing burning or breaking of the agitator.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: October 5, 1993
    Assignee: Matsushita Elecric Industrial Co., Ltd.
    Inventors: Tomomi Mitani, Hiroshi Nishimura, Hiroshi Hayakawa, Hiroshi Mori, Tomonori Katoh, Hideo Okubo, Hidenori Kitamura, Haruhisa Miyake, Kiyokazu Uno
  • Patent number: 5144714
    Abstract: A vacuum cleaner introduces dust, as well as air, from a nozzle connected with the distal end of a hose into a dust collecting section in the cleaner body through an intake section, while detecting, by means of a detector, the volume of dust being introduced, and controls the output of an electric blower in accordance with the detected volume. One end of the intake section is connected with the proximal end of the hose, while the other end projects into the dust collecting section. Light-emitting and light-receiving elements are provided in the intake section to constitute the detector so as to enable positive detection of dust, easy checking of the contamination of the detector, and easy wiping of the detector.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: September 8, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Mori, Seizo Hayashi, Hiroshi Hayakawa, Tomomi Mitani