Patents Assigned to Hoshizaki Denki Co., Ltd.
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Patent number: 7730732Abstract: A storing section stores data of a pull down cooling characteristic indicative of a time-varying mode of reduction in a target temperature drop. For example, when this is a linear function line, a target internal temperature drop degree takes a constant value, irrespective of an operating time. An actual temperature drop degree is computed on the basis of the detected internal temperature. The computed value is compared with a target value read from the storing section. When the computed value is less than the target value, a rotational speed of an inverter compressor is increased via an inverter circuit. When the computed value is larger than the target value, the rotational speed of the compressor is decreased. The speed increases and decreases are repeated so that pull down cooling is performed along the linear line.Type: GrantFiled: October 20, 2004Date of Patent: June 8, 2010Assignee: Hoshizaki Denki Co., Ltd.Inventors: Shinichi Kaga, Akihiko Hirano
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Patent number: 7246504Abstract: A method of manufacturing cooling storage units and a sales management system is to be provided for the same permitting the exclusion of a made-to-order production system which indispensably requires pre-shipment cooling tests. Thermally insulated boxes of different predetermined sets of specifications, each usable as a freezer, a refrigerator, or a freezer-refrigerator, and cooling units so fabricated as to have a prescribed cooling capacity for any one of the group of thermally insulated boxes are made ready in advance. One thermally insulated box, meeting the specified requirements from the group of thermally insulated boxes, and a matching cooling unit are transported to the installation site of the cooling storage unit. The thermally insulated box and the cooling unit are combined at the installation site to constitute the cooling storage unit.Type: GrantFiled: November 2, 2004Date of Patent: July 24, 2007Assignee: Hoshizaki Denki Co., Ltd.Inventors: Akihiko Hirano, Shinichi Kaga
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Publication number: 20070144188Abstract: A storing section 49 stores data of a pull down cooling characteristic indicative of a time-varying mode of reduction in a target temperature drop. For example, when this is a linear function line xp, a target internal temperature drop degree takes a constant value Ap, irrespective of an operating time. An actual temperature drop degree Sp is computed on the basis of the detected internal temperature. The computed value Sp is compared with a target value Ap read from the storing section 49. When the computed value Sp is less than the target value Ap, a rotational speed of an inverter compressor 32 is increased via an inverter circuit 55. When the computed value Sp is larger than the target value Ap, the rotational speed of the compressor 32 is decreased. The speed increases and decreases are repeated so that pull down cooling is performed along the linear line xp.Type: ApplicationFiled: October 20, 2004Publication date: June 28, 2007Applicant: HOSHIZAKI DENKI CO., LTD.Inventors: Shinichi Kaga, Akihiko Hirano
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Patent number: 6806239Abstract: A lubricating-grease modifier for addition to and modification of a lubricating grease that is to be present in a driving mechanism of a machine or apparatus and lubricate a driving part of the driving mechanism, the modifier comprising a lubricating resin powder and a water-absorbing resin powder and a high-lubricity grease comprising a solid lubricant, the solid lubricant comprising at least one synthetic resin selected from the group consisting of polyamides, polyimides, high-density polyolefins and polyesters.Type: GrantFiled: June 18, 2002Date of Patent: October 19, 2004Assignee: Hoshizaki Denki Co., Ltd.Inventors: Satoshi Endou, Rie Oguri, Mikio Yamamoto
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Patent number: 6471313Abstract: A heat-insulated housing for use in a refrigerator etc. includes a housing body having a rectangular opening in one side thereof, the opening having four corners each of which is defined by two side plates generally perpendicular to each other, either one of the side plates being formed with a hole having an engagement open edge, a corner cover including two closing plates disposed to be perpendicular to each other so as to have a generally L-shaped section, the closing plates having backs thereof abutting against the side plates of the housing body respectively, an engagement protrusion formed on the back of either closing plate abutting against the side plate formed with the hole, the protrusion being inserted into the hole of the side plate and elastically deformable, and a plurality of engaging teeth formed on the protrusion so as to be aligned in a direction of insertion of the protrusion, one of the teeth elastically engaging the opening edge of the hole when the protrusion is inserted into the hole.Type: GrantFiled: December 13, 1999Date of Patent: October 29, 2002Assignee: Hoshizaki Denki Co., Ltd.Inventors: Hideki Ueda, Mitsuyuki Takaoka, Taito Yamakawa
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Patent number: 6435377Abstract: A frozen dessert dispenser includes a heat-insulating box, a cooling unit for cooling an atmosphere in the heat-insulating box, a dispensing cylinder including a piston ascended and descended by an operating fluid and a pack accommodating chamber in which a frozen dessert pack is accommodated, a pump supplying and discharging the operating fluid to and from a pressure chamber defined in the dispensing cylinder, and a usually closed operating fluid introducing port disposed in the cylinder. The operating fluid introducing port is opened so that the operating fluid is introduced into the pressure chamber, when the piston reaches a bottom dead point.Type: GrantFiled: September 29, 1999Date of Patent: August 20, 2002Assignee: Hoshizaki Denki Co., Ltd.Inventors: Tsutomu Iwata, Shinji Notsu, Michiharu Ishihara, Hironori Rikiishi
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Patent number: 6350002Abstract: A storage apparatus such as a refrigerator includes a heat-insulated housing having a storage compartment defined by a ceiling, a bottom, two side walls, and a rear wall and a front opening, and a partition frame including a horizontal frame and a vertical frame and mounted on the heat-insulated housing so as to partition the front opening into a plurality of access openings, the access openings having doors respectively. The horizontal frame is formed into a single member fixed to both side walls of the heat-insulated housing so as to extend between them. The vertical frame is formed so as to extend between the ceiling of the heat-insulated housing and the horizontal frame and/or between the bottom of the heat-insulated housing and the horizontal frame.Type: GrantFiled: February 15, 2000Date of Patent: February 26, 2002Assignee: Hoshizaki Denki Co., Ltd.Inventors: Mitsuyuki Takaoka, Takenobu Sobukawa, Shigekazu Kondo, Hideyuki Anzai
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Patent number: 6299025Abstract: A frozen dessert dispenser includes a freezing compartment accommodating a frozen dessert dispensing cylinder, a dispensing section provided on an outer wall of the freezing compartment, the dispensing section including a vertically extending dispensing passage and a valve element slidably provided in the dispensing passage, and a connecting pipe communicating with a side of the dispensing passage and projecting into the freezing compartment to be connected to a discharge side of the dispensing cylinder. A portion of the dispensing passage communicating with the connecting pipe is closed and opened by the valve element and the connecting pipe is detachably attached to the dispensing passage.Type: GrantFiled: March 8, 2000Date of Patent: October 9, 2001Assignee: Hoshizaki Denki Co., Ltd.Inventors: Mamoru Watanabe, Tsutomu Iwata, Yasuo Hara, Hironori Rikiishi
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Patent number: 6155461Abstract: A frozen dessert dispenser for dispensing ice cream etc. includes a heat-insulating box having a side formed with an opening closed and opened by a heat-insulating door, a dispensing cylinder including a piston and a pack accommodating chamber defined between the piston and a lid closing an upper opening of the cylinder. A frozen dessert pack is accommodated into the pack accommodating chamber when the lid is opened. The dispensing cylinder is mounted on a bracket further mounted on a backside of the door. The bracket positions the dispensing cylinder in the heat-insulating box and is rotated relative to the door so that the dispensing cylinder is inclined from a standing position where the dispensing cylinder stands along the door to a inclined position where an upper end of the dispensing cylinder is spaced away from the door.Type: GrantFiled: September 7, 1999Date of Patent: December 5, 2000Assignee: Hoshizaki Denki Co., Ltd.Inventors: Michiharu Ishihara, Tsutomu Iwata, Shinji Notsu, Takeshi Horie, Yoshinobu Ito, Hideki Matsudaira
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Patent number: 6082131Abstract: A refrigerator includes a support panel extending sideways from a bottom of a storage heat insulating box at one side of the box. An evaporator heat insulating box is provided for accommodating an evaporator and is formed at the one side of the storage heat insulating box with an equipment accommodating space being formed between itself and the base panel. A back panel extends from the rear wall of the storage heat insulating box so as to form rear walls of the evaporator heat insulating box and the equipment accommodating space, respectively. A side panel is continuous to the back panel so as to define an air circulation space together with a side of the evaporator heat insulating box. A front panel is continuous to the side panel so as to provide a front of the evaporator heat insulating box and the equipment accommodating space.Type: GrantFiled: October 20, 1998Date of Patent: July 4, 2000Assignee: Hoshizaki Denki Co., Ltd.Inventors: Masaru Hirosawa, Hiroyuki Ichouda, Yasuhide Koike, Tomio Suyama
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Patent number: 6014868Abstract: A refrigerator includes a heat insulating body having a front with an opening, a left-hand side, a right-hand side and a ceiling, thereby defining a cold storage compartment, a partition member disposed on either side of the body and having a blowout hole through which cold air is supplied so as to flow along the ceiling, a refrigeration unit including an evaporator and supplying cold air produced by the evaporator through the blowout hole into the cold storage compartment, and a cold air guide member mounted on the ceiling of the body widthwise with respect to the cold storage compartment so as to hang down from the ceiling of the body and to be inclined so that the guide member inwardly retreats as it goes toward a lower end thereof.Type: GrantFiled: October 20, 1998Date of Patent: January 18, 2000Assignee: Hoshizaki Denki Co., Ltd.Inventors: Masaru Hirosawa, Tomio Suyama, Takatosi Torihata