Patents by Inventor Takashi Kohama

Takashi Kohama 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: 11649984
    Abstract: An air conditioner includes: an air blower configured to take air from an inlet, and to blow the air from an outlet; a filter configured to purify the air; a first chamber and a second chamber taking the air purified by the filter; a humidification filter provided in the second chamber, and humidifying the air taken into the second chamber; and a divider opening and closing an opening that provides communication between the first chamber and the second chamber, and adjusting a volume of the air taken from the first chamber into the second chamber. The air taken from the first chamber into the second chamber and/or the air taken into the second chamber is blown from the outlet.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 16, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Kohama, Yuusuke Ozaki, Yoshinori Nakamura, Keitaro Yamada
  • Patent number: 11339985
    Abstract: An air purifier includes: a housing; a fan in the housing; an outlet in a top face of the housing, air being blown out via the outlet; an air passage spatially connecting the fan to the outlet; and an illumination unit configured to illuminate the air passage, wherein the air passage includes an upstream, first air passage and a downstream, second air passage, the first air passage extends upwards, the second air passage has a curved surface or an inclined surface inclined with respect to the first air passage, and the illumination unit illuminates the curved surface or the inclined surface.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 24, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Eiichi Shimizu, Jinni Zhang, Takashi Kohama, Masaki Tabata, You Ka, Shota Suzuki
  • Publication number: 20210080130
    Abstract: An air purifier includes: a housing; a fan in the housing; an outlet in a top face of the housing, air being blown out via the outlet; an air passage spatially connecting the fan to the outlet; and an illumination unit configured to illuminate the air passage, wherein the air passage includes an upstream, first air passage and a downstream, second air passage, the first air passage extends upwards, the second air passage has a curved surface or an inclined surface inclined with respect to the first air passage, and the illumination unit illuminates the curved surface or the inclined surface.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 18, 2021
    Inventors: EIICHI SHIMIZU, JINNI ZHNAG, TAKASHI KOHAMA, MASAKI TABATA, YOU KA, SHOTA SUZUKI
  • Publication number: 20210080147
    Abstract: An air conditioner includes: an air blower configured to take air from an inlet, and to blow the air from an outlet; a filter configured to purify the air; a first chamber and a second chamber taking the air purified by the filter; a humidification filter provided in the second chamber, and humidifying the air taken into the second chamber; and a divider opening and closing an opening that provides communication between the first chamber and the second chamber, and adjusting a volume of the air taken from the first chamber into the second chamber. The air taken from the first chamber into the second chamber and/or the air taken into the second chamber is blown from the outlet.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 18, 2021
    Inventors: TAKASHI KOHAMA, YUUSUKE OZAKI, YOSHINORI NAKAMURA, KEITARO YAMADA
  • Publication number: 20210080125
    Abstract: An air purifier includes: a housing; an outlet in a top face of the housing, air being blown out via the outlet; a wall section in the housing, the wall section forming an air passage spatially continuous with the outlet; and a louver configured to change a direction of the air when rotated, wherein the louver extends from the air passage toward the outlet and includes a curved face section curved toward a front of the housing.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 18, 2021
    Inventors: TAKASHI KOHAMA, EIICHI SHIMIZU, JINNI ZHNAG
  • Patent number: 8625252
    Abstract: An ion diffusing apparatus is disclosed which can maintain a stable ion supplying capability. In the ion diffusing apparatus, the ion generator is detachable for easy maintenance and can deliver the positive ions and negative ions to a remote position while uniformly generating positive ions and negative ions. The ion diffusing apparatus includes an ion generator housing which houses the generator so that a positive ion generating part and a negative ion generating part are provided separately in a direction crossing a flow direction of a stream from a fan, and an ion generating surface is exposed which conforms to a stream flow surface of a stream flow passage extended from the fan to a supply opening. The ion generator may also be a cartridge which has an ion generating surface shaped to conform to the stream flow surface of the stream flow passage.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: January 7, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Kitagaito, Takashi Kohama, Hiroyasu Yamashita, Haruhito Miyazaki, Jun Katayama
  • Publication number: 20110133098
    Abstract: Disclosed is an ion diffusing apparatus that can realize easy replacement of an ion generator and can maintain a stable ion supplying capability. Also disclosed is an ion generating cartridge. In the ion diffusing apparatus, the ion generator is so configured that the generator is detachable for easy maintenance, and can deliver the positive ions and negative ions to a position remote from the apparatus in a room while uniformly generating positive ions and negative ions. An ion diffusing apparatus (1) includes an ion generator housing part. An ion generator (10) is housed in the ion generator housing part in such a posture that a positive ion generating part (13A) and a negative ion generating part (13B) are provided separately from each other in a direction crossing a flow direction of a stream from a fan (3), and an ion generating surface (11a) is exposed so as to conform to a stream flow surface of a stream flow passage extended from the fan (3) to a supply opening (4).
    Type: Application
    Filed: August 27, 2009
    Publication date: June 9, 2011
    Inventors: Hiroshi Kitagaito, Takashi Kohama, Hiroyasu Yamashita, Haruhito Miyazaki, Jun Katayama
  • Patent number: 7679879
    Abstract: An air cleaner includes an ion generator arranged in a path from an inlet port to an outlet port, a humidifying filter arranged in the path at a position closer to the inlet port than the ion generator, a dust sensor and an odor sensor for detecting impureness of air, and a temperature sensor and a humidity sensor. When impureness is detected by the dust sensor and the odor sensor and when the temperature and the humidity attain a specific state (YES at S06 to S08), a fan motor is driven such that water is supplied to the ion generator in an amount larger than when the specific state is not attained (S14).
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: March 16, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenji Furuhashi, Takashi Kohama
  • Publication number: 20080074824
    Abstract: An air cleaner includes an ion generator arranged in a path from an inlet port to an outlet port, a humidifying filter arranged in the path at a position closer to the inlet port than the ion generator, a dust sensor and an odor sensor for detecting impureness of air, and a temperature sensor and a humidity sensor. When impureness is detected by the dust sensor and the odor sensor and when the temperature and the humidity attain a specific state (YES at S06 to S08), a fan motor is driven such that water is supplied to the ion generator in an amount larger than when the specific state is not attained (S14).
    Type: Application
    Filed: August 4, 2005
    Publication date: March 27, 2008
    Inventors: Kenji Furuhashi, Takashi Kohama
  • Patent number: 7040101
    Abstract: An air conditioning apparatus incorporates an ion generating device that generates positive and negative ions by applying an alternating-current voltage between electrodes. The generated positive and negative ions coexist in the air and, when they attach to the surfaces of airborne bacteria, they react chemically with each other and generate radical hydroxyl and hydrogen peroxide, which extract hydrogen atoms from the cells of the bacteria and thereby kill them. This sterilizing effect is combined with the temperature-conditioning, dehumidifying, humidifying, air-purifying, and other functions of the air conditioning apparatus to bring about a comfortable and healthful indoor environment.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: May 9, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasukata Takeda, Takashi Kohama, Yoshinori Sekoguchi, Toshiaki Takano, Kazuo Nishikawa, Hideo Nojima, Katsutoshi Noguchi, Fumiaki Shimizu, Hiroyasu Yamashita, Mamoru Morikawa
  • Publication number: 20040007000
    Abstract: An air conditioning apparatus incorporates an ion generating device that generates positive and negative ions by applying an alternating-current voltage between electrodes. The generated positive and negative ions coexist in the air and, when they attach to the surfaces of airborne bacteria, they react chemically with each other and generate radical hydroxyl and hydrogen peroxide, which extract hydrogen atoms from the cells of the bacteria and thereby kill them. This sterilizing effect is combined with the temperature-conditioning, dehumidifying, humidifying, air-purifying, and other functions of the air conditioning apparatus to bring about a comfortable and healthful indoor environment.
    Type: Application
    Filed: August 11, 2003
    Publication date: January 15, 2004
    Inventors: Yasukata Takeda, Takashi Kohama, Yoshinori Sekoguchi, Toshiaki Takano, Akio Miyata, Kazuo Nishikawa, Hideo Nojima, Katsutoshi Noguchi, Fumiaki Shimizu, Hiroyasu Yamashita, Tomohisa Itoh, Mamoru Morikawa
  • Patent number: 5665285
    Abstract: A molded foam article with an integral skin is produced by blow-molding a parison in a cavity of a metal mold to form a hollow member, filling the hollow member with pre-expanded thermoplastic resin besides before cooling and solidification of the hollow member, and heating the pre-expanded beads to cause the beads to expand further and fuse together. A filler for the pre-expanded thermoplastic resin beads is provided with a cutter for making a hole in the hollow member before introducing the resin beads into the hollow member.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: September 9, 1997
    Assignees: Mitsubishi Yuka Badische Co., Ltd., Sanko Sogyo Co., Ltd., Aron Kasei Co., Ltd.
    Inventors: Kazuhide Hattori, Hiroyuki Yamaji, Yoshikazu Hatakeyama, Yoshiyuki Shida, Atsushi Tamura, Takumi Kitaoka, Takashi Kohama
  • Patent number: 5366674
    Abstract: A process for producing expanded plastic with a skin and a molding apparatus therefor, the process including blowing a parison being held in a closed blow mold to obtain a hollow article, filling the hollow article with thermoplastic preexpanded resin beads before the hollow article is cooled to solidify, heating and fusing said beads, and cooling the expanded plastic. A hollow article and an expanded body are completely fused together, and improved productivity is obtained.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: November 22, 1994
    Assignees: Aronkasei Co., Ltd., Mitsubishi Yuka Badische Co., Ltd., Sanko Sogyo Co., Ltd.
    Inventors: Kazuhide Hattori, Hiroyuki Yamaji, Yoshikazu Hatakeyama, Yoshiyuki Shida, Atushi Tamura, Takumi Kitaoka, Takashi Kohama