Patents by Inventor Akihiko Sakashita
Akihiko Sakashita 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).
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Publication number: 20100287967Abstract: An objective of the invention is to obtain a structure which allows a cleaning mechanism, such as dust removal means, for an air filter to be easily mounted in an indoor unit of an air conditioner that has an air filter on the intake side of an indoor fan. The indoor unit is constituted by a main unit (10) including an indoor heat exchanger (22) and an indoor fan (21) for blowing air taken from a room to the indoor heat exchanger (22), a cleaning unit (100) located on the room side of the main unit (10) and including an air filter (30) and dust removal means (50) for removing dust captured by the air filter (30), and an indoor panel (11) for covering the room side of the cleaning unit (100).Type: ApplicationFiled: December 17, 2008Publication date: November 18, 2010Inventors: Akihiko Sakashita, Morimichi Okada
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Publication number: 20100287968Abstract: Disclosed is an indoor unit having a dust storage container in which dust removed from an air filter is stored, and a dust collecting box into which the dust in the dust storage container is transferred by utilizing an effect of blown air. The dust storage container is provided with a full condition detection means for detecting a dust full condition of the dust collecting box. The full condition detection means includes an LED and a phototransistor which are opposed to each other with a storage portion interposed therebetween. After a dust transfer operation which transfers the dust from the dust storage container to the dust collecting box, an intensity of light of the LED that has passed through the storage portion is detected by the phototransistor. If the detected light intensity is equal to or less than a set value, a full condition of the dust collecting box is detected.Type: ApplicationFiled: January 13, 2009Publication date: November 18, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiko Sakashita, Tsuyoshi Yokomizo, Yoshiharu Michitsuji, Kenji Masuda
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Publication number: 20100281649Abstract: An indoor unit of an air conditioner having an air filter provided on a suction side of an indoor fan has a construction in which dust removed from the air filter by a dust removing part can be recovered easily and reliably. The construction includes a dust removing part (51) for removing dust captured by an air filter (30) provided on the suction side of an indoor fan (21), storage containers (60), (81) having the dust removing part (51) stored therein, a nozzle insertion part (110) into which a nozzle (150) of a cleaner can be inserted, and a suction passage (95) for making the storage containers (60), (81) to communicate with the nozzle insertion part (110).Type: ApplicationFiled: January 8, 2009Publication date: November 11, 2010Inventors: Akihiko Sakashita, Yoshiharu Michitsuji
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Publication number: 20100263827Abstract: A casing (10) of an indoor unit (1) contains an indoor fan (21), an air filter (30), and an indoor heat exchanger (22). The indoor unit (1) includes: a divider plate (25) which includes an air hole (26) for attaching the air filter (30) therein, and divides space inside the casing (10) into a room upstream of an air flow passing through the air filter (30), and a room downstream of the air flow passing through the air filter (30); a dust removing mechanism (50) for removing dust trapped on the air filter (30); and a dust container (90) for containing the dust which is removed by the dust removing mechanism (50), and is transferred through a transfer duct (88). The indoor heat exchanger (22) is arranged around the indoor fan (21), and the dust container (90) is arranged below the indoor heat exchanger (22).Type: ApplicationFiled: December 8, 2008Publication date: October 21, 2010Inventors: Akihiko Sakashita, Tsuyoshi Yokomizo, Morimichi Okada, Yoshiharu Michitsuji
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Publication number: 20100258267Abstract: In an indoor unit of an air conditioner including an air filter arranged on a suction side of an indoor fan, dust trapped on the air filter is reliably and efficiently removed by a simple structure. For that purpose, an indoor unit (13) is provided with a dust remover (50) for removing dust trapped on an air filter (40) arranged on a suction side of an indoor fan (39), and a filter presser (70) for pressing a frame (42) of the air filter (40) so as to press the air filter (40) against the dust remover (50). The air filter (40) is configured to move relative to the dust remover (50), and the filter presser (70).Type: ApplicationFiled: September 30, 2008Publication date: October 14, 2010Inventors: Akihiko Sakashita, Tsuyoshi Yokomizo, Morimichi Okada
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Publication number: 20100199697Abstract: Dust collection structure for collecting the dust removed from an air filter of an indoor unit has been devised to reduce user's labor in collecting the dust as much as possible. An indoor unit includes, in a casing, an indoor heat exchanger, an indoor fan for sucking air from inside of a room, and blowing the air to the inside of the room, and an air filter arranged on an inlet side of the indoor fan. The dust trapped on the air filter is removed by the dust removing means, and is contained in the dust containing part. A nozzle connector for arranging a nozzle of a cleaner at a predetermined position where suction of the contained dust is allowed is provided at a downstream outlet of a dust collection path as a transfer path for transferring the dust in collecting the contained dust.Type: ApplicationFiled: July 30, 2008Publication date: August 12, 2010Inventor: Akihiko Sakashita
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Patent number: 7757749Abstract: An air conditioner principally includes a casing having a casing lower part formed by an alternating sequence of four panel side parts and four corner parts. The casing further has main outlets disposed along each of the panel side parts, and auxiliary outlets disposed at the corner parts. The air conditioner further includes horizontal flaps rotatably supported about longitudinal axes of the main outlets. A circumferential edge part of each of the auxiliary outlets is formed so that the air from each of the auxiliary outlets is blown out in a fixed direction.Type: GrantFiled: September 18, 2008Date of Patent: July 20, 2010Assignee: Daikin Industries, Ltd.Inventors: Akihiko Sakashita, Tsunehisa Sanagi, Azumi Terakawa
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Publication number: 20100159818Abstract: A casing (34) contains a rotating brush (151) for removing dust on an air filter (40), and a dust container (160) for containing the removed dust. A supply duct (71) through which air blowing from an indoor fan (39) enters the dust container (160), and a discharge duct (74) through which the dust contained in the dust container (160) is discharged out of the casing (34) together with the air are provided.Type: ApplicationFiled: May 19, 2008Publication date: June 24, 2010Inventors: Akihiko Sakashita, Yoshiharu Michitsuji
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Patent number: 7497246Abstract: An air conditioner principally includes a casing having a casing lower part formed by an alternating sequence of four panel side parts and four corner parts. The casing further has main outlets disposed along each of the panel side parts, and auxiliary outlets disposed at the corner parts. The air conditioner further includes horizontal flaps rotatably supported about longitudinal axes of the main outlets. A circumferential edge part of each of the auxiliary outlets is formed so that the air from each of the auxiliary outlets is blown out in a fixed direction.Type: GrantFiled: November 18, 2004Date of Patent: March 3, 2009Assignee: Daikin Industries, Ltd.Inventors: Akihiko Sakashita, Tsunehisa Sanagi, Azumi Terakawa
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Publication number: 20090013711Abstract: An air conditioner principally includes a casing having a casing lower part formed by an alternating sequence of four panel side parts and four corner parts. The casing further has main outlets disposed along each of the panel side parts, and auxiliary outlets disposed at the corner parts. The air conditioner further includes horizontal flaps rotatably supported about longitudinal axes of the main outlets. A circumferential edge part of each of the auxiliary outlets is formed so that the air from each of the auxiliary outlets is blown out in a fixed direction.Type: ApplicationFiled: September 18, 2008Publication date: January 15, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiko SAKASHITA, Tsunehisa SANAGI, Azumi TERAKAWA
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Publication number: 20090007580Abstract: A mounting bracket (30) for mounting a drain pump (40) to a heat insulator (25) is integrated with a lid element (32) for blocking an opening of a wire receiving groove (26). When the mounting bracket (30) is mounted to the heat insulator (25), a wire (41) extending from the drain pump (40) is held between the wire receiving groove (26) and the lid element (32).Type: ApplicationFiled: February 2, 2007Publication date: January 8, 2009Inventors: Akihiko Sakashita, Naoyuki Ohta
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Publication number: 20080053134Abstract: In the vicinity of a suction port of a drain pump in a drain pan of an air conditioner, an antibacterial agent unit having an antibacterial agent capable of being brought into contact with drain water is disposed so that the antibacterial agent unit disposed in the vicinity of the suction port of the drain pump at the lowest portion in the drain pan is reliably immersed into the drain water when the drain pump is operating and not operating.Type: ApplicationFiled: January 11, 2006Publication date: March 6, 2008Applicant: Daikin Industries, Ltd.Inventors: Akihiko Sakashita, Makio Takeuchi, Haruo Nakata, Tsunehisa Sanagi
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Publication number: 20060276123Abstract: A ceiling embedded type air conditioner that reduces short circuits without increasing drafts due to air currents blown out from outlets includes a casing and a fan. The casing includes a casing lower part formed by an alternating sequence of four panel side parts and four panel corner parts. The casing further includes four main outlet passageways along the panel side parts auxiliary outlet passageways in the three panel corner parts and an inlet so that is surrounded by all of the panel side parts. The auxiliary outlet passageways are formed so that the spacing between each auxiliary outlet passageways and a corresponding adjacent main outlet passageways satisfies a prescribed dimensional relationship.Type: ApplicationFiled: November 18, 2004Publication date: December 7, 2006Inventors: Tsunehisa Sanagi, Azumi Terakawa, Akihiko Sakashita
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Publication number: 20060213216Abstract: An air conditioner principally includes a casing having a casing lower part formed by an alternating sequence of four panel side parts and four corner parts. The casing further has main outlets disposed along each of the panel side parts, and auxiliary outlets disposed at the corner parts. The air conditioner further includes horizontal flaps rotatable supported about longitudinal axes of the main outlets. A circumferential edge part of each of the auxiliary outlets is formed so that the air from each of the auxiliary outlets is blown out in a fixed direction.Type: ApplicationFiled: November 18, 2004Publication date: September 28, 2006Applicant: Daikin Industries Ltd.Inventors: Akihiko Sakashita, Tsunehisa Sanagi, Azumi Terakawa
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Patent number: 6877331Abstract: The present invention is an air conditioner that is built into or hung from a ceiling and which employs a cross fin type of heat exchanger, in which the effective length of the heat exchanger is increased without increasing the size of the casing of the indoor unit. An indoor unit has a casing that supports the components of the indoor unit and in which an air suction port and air discharge ports are formed, a centrifugal fan disposed inside the casing for taking in air from the air suction port and discharging air out to the sides thereof, and a cross fin type of heat exchanger for exchanging heat with the air discharged from the centrifugal fan and disposed so that it surrounds the centrifugal fan. The heat exchanger has a plurality of concave portions that are formed such that they are near the outer circumferential portion of the centrifugal fan, and a plurality of convex portions that are formed such that the extend away from the outer circumferential portion of the centrifugal fan.Type: GrantFiled: April 3, 2002Date of Patent: April 12, 2005Assignee: Daikin Industries, Ltd.Inventors: Makio Takeuchi, Akihiko Sakashita
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Publication number: 20040093886Abstract: The present invention is an air conditioner that is built into or hung from a ceiling and which employs a cross fin type of heat exchanger, in which the effective length of the heat exchanger is increased without increasing the size of the casing of the indoor unit.Type: ApplicationFiled: March 4, 2003Publication date: May 20, 2004Inventors: Makio Takeuchi, Akihiko Sakashita