Patents by Inventor Hisahiro Nishitani
Hisahiro Nishitani 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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Patent number: 10076004Abstract: A microwave oven includes: heating chamber (11) for accommodating a heating object; magnetron (12) for heating the heating object accommodated in heating chamber (11); blower (13) for cooling magnetron (12); temperature detection device (17) for detecting a temperature of magnetron (12); and a control device for controlling an output power of magnetron (12) on the basis of temperature information output from temperature detection device (17), wherein temperature detection device (17) is disposed inside cooling fin (19) of magnetron (12), and the control device controls magnetron (12) on the basis of the temperature information obtained before cooking is started, thereby reducing a temperature transfer loss of abnormal heat generated from magnetron (12) and efficiently transferring the heat.Type: GrantFiled: February 17, 2010Date of Patent: September 11, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kouji Kanzaki, Kazuhiro Kawai, Hisahiro Nishitani
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Publication number: 20140190961Abstract: A cooking apparatus 1 includes: a heating chamber which accommodates an object to be heated; an interior lamp illuminates the heating chamber; a control unit which supplies power to the interior lamp; and an operation unit which operates the control unit. The interior lamp is formed with an LED board on which a plurality of LED elements are mounted, and the control unit supplies power to only a part of the plurality of LED elements during cooking.Type: ApplicationFiled: October 12, 2012Publication date: July 10, 2014Inventors: Kouji Kanzaki, Hisahiro Nishitani, Shinichi Yamane
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Patent number: 8729441Abstract: There is provided a high-frequency heating apparatus including a heating chamber that houses an object to be heated, a rotating turntable provided on a bottom surface of the heating chamber, on which the object to be heated is rotatably mounted; a high-frequency heating section (21) that heats the object to be heated which is housed in the heating chamber, a convection heater (27) for heating the heating chamber, a circulating fan (28) for supplying the heating chamber with heat of the convection heater (27) as hot air, and a grill heater (33) for heating the object to be heated, wherein the convection heater (27) and the grill heater (33) are separately disposed on an upper surface of the heating chamber, thereby allowing reduction in size of an external shape of the heating apparatus without sacrificing grill cooking performance and oven cooking performance.Type: GrantFiled: April 28, 2009Date of Patent: May 20, 2014Assignee: Panasonic CorporationInventors: Kouji Kanzaki, Hisahiro Nishitani
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Patent number: 8258436Abstract: The present invention provides a heating device including a heating compartment for holding an object-to-be-heated, an oven heater for heating the heating compartment, a circulation fan for supplying the heat of the oven heater to the heating compartment as hot air, a drive motor for driving the circulation fan, a grill heater in an upper part of the heating compartment, and a turntable on which the object-to-be-heated is mounted, the turntable being in the bottom of the heating compartment, in which the grill heater is disposed obliquely to a side surface of the heating compartment in a part of the upper part of the heating compartment.Type: GrantFiled: April 24, 2009Date of Patent: September 4, 2012Assignee: Panasonic CorporationInventors: Hisahiro Nishitani, Kouji Kanzaki
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Publication number: 20120043316Abstract: A high-frequency heating equipment includes temperature sensor (21) that is mounted with mounting bracket (22) such that temperature sensor (21) can be pressed by a lateral face of cooling fins and an end of temperature sensor (21) points to an anode of magnetron (3). This structure allows positively preventing magnetron (3) from falling into a thermal runaway which invites a breakdown of magnetron (3), and allows determining in a reliable manner whether the operation is a no-load running or a light-load running. The high-frequency heating equipment thus achieves stable performance.Type: ApplicationFiled: March 3, 2010Publication date: February 23, 2012Applicant: PANASONIC CORPORATIONInventors: Kazuhiro Kawai, Kouji Kanzaki, Hisahiro Nishitani
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Publication number: 20110284528Abstract: A microwave oven includes: heating chamber (11) for accommodating a heating object; magnetron (12) for heating the heating object accommodated in heating chamber (11); blower (13) for cooling magnetron (12); temperature detection device (17) for detecting a temperature of magnetron (12); and a control device for controlling an output power of magnetron (12) on the basis of temperature information output from temperature detection device (17), wherein temperature detection device (17) is disposed inside cooling fin (19) of magnetron (12), and the control device controls magnetron (12) on the basis of the temperature information obtained before cooking is started, thereby reducing a temperature transfer loss of abnormal heat generated from magnetron (12) and efficiently transferring the heat.Type: ApplicationFiled: February 17, 2010Publication date: November 24, 2011Applicant: PANASONIC CORPORATIONInventors: Kouji Kanzaki, Kazuhiro Kawai, Hisahiro Nishitani
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Publication number: 20110062152Abstract: There is provided a high-frequency heating apparatus with an electrothermic heating device, including a heating chamber that houses an object to be heated, a high-frequency generating device and an electrothermic heating device for heating the object to be heated, and two overheat prevention devices provided in the electrothermic heating device, wherein the two overheat prevention devices are a first stage overheat prevention device of a resettable type and a second stage overheat prevention device of a non-resettable type, and an operating temperature of the second stage overheat prevention device is set higher than an operating temperature of the first stage temperature overheat prevention device.Type: ApplicationFiled: May 13, 2009Publication date: March 17, 2011Applicant: PANASONIC CORPORATIONInventors: Mikio Fukui, Hisahiro Nishitani, Yoshio Semori
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Publication number: 20110056933Abstract: There is provided a high-frequency heating apparatus including a heating chamber that houses an object to be heated, a rotating turntable provided on a bottom surface of the heating chamber, on which the object to be heated is rotatably mounted; a high-frequency heating section (21) that heats the object to be heated which is housed in the heating chamber, a convection heater (27) for heating the heating chamber, a circulating fan (28) for supplying the heating chamber with heat of the convection heater (27) as hot air, and a grill heater (33) for heating the object to be heated, wherein the convection heater (27) and the grill heater (33) are separately disposed on an upper surface of the heating chamber, thereby allowing reduction in size of an external shape of the heating apparatus without sacrificing grill cooking performance and oven cooking performance.Type: ApplicationFiled: April 28, 2009Publication date: March 10, 2011Inventors: Kouji Kanzaki, Hisahiro Nishitani
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Publication number: 20110036825Abstract: The present invention provides a heating device including a heating compartment for holding an object-to-be-heated, an oven heater for heating the heating compartment, a circulation fan for supplying the heat of the oven heater to the heating compartment as hot air, a drive motor for driving the circulation fan, a grill heater in an upper part of the heating compartment, and a turntable on which the object-to-be-heated is mounted, the turntable being in the bottom of the heating compartment, in which the grill heater is disposed obliquely to a side surface of the heating compartment in a part of the upper part of the heating compartment.Type: ApplicationFiled: April 24, 2009Publication date: February 17, 2011Applicant: Panasonic CorporationInventors: Hisahiro Nishitani, Kouji Kanzaki
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Patent number: 7022958Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.Type: GrantFiled: March 21, 2005Date of Patent: April 4, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Patent number: 6974936Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation means for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.Type: GrantFiled: September 5, 2002Date of Patent: December 13, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Publication number: 20050167425Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.Type: ApplicationFiled: March 21, 2005Publication date: August 4, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Publication number: 20030047560Abstract: The present invention provides a high frequency heating apparatus equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber; an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber; cooling means for cooling the electric power supplying apparatus; another heat-cooking apparatus provided with heating means operated by gas and electric power, which is installed under an appliance main body; and ventilating means for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling means is joined onto an air intake path of the ventilating means.Type: ApplicationFiled: September 5, 2002Publication date: March 13, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Patent number: 5981929Abstract: The present invention relates to heating cookers, particularly to a structure for ventilation and cooling of microwave ovens employing a range hood. The structure according to the present invention enhances the ventilation airflow and capacity of a heating chamber by enlarging diameter of a ventilating fan by forming a recess on an upper wall of the heating chamber and by disposing the ventilating fan in the recess. Also, an improvement in ventilation efficiency is achieved by disposing the ventilating fan of a larger diameter at either or both ends of a wave-guide, and dividing the airflow path into an evenly well balanced plurality of airflow paths. Moreover, an openable door is attached to either or both of an exhaust opening and an intake opening for the air to pass through an inner surface of the door, thereby keeping the soiled surface inconspicuous.Type: GrantFiled: April 1, 1998Date of Patent: November 9, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazunori Maeda, Satoru Kodama, Hisahiro Nishitani