Patents by Inventor Toshie Hiraoka
Toshie Hiraoka 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: 20100083687Abstract: The present invention is to realize supercooled freezing as a method of enhancing the quality of frozen food with a simple arrangement by a method other than quick freezing. Further, the present invention is to obtain a refrigerator and a frozen food preservation method capable of realizing high quality freezing by a simple arrangement. The refrigerator, which stores food making use of the cold air generated by a cooler 3, includes a supercooling case 81 for keeping the stored food in a supercooled state, in which the food is not frozen even at a temperature equal to or less than the freezing point of the food, for at least a predetermined period of time. The supercooling case 81 is composed of, for example, a lower case of two-stage type upper and lower cases disposed in a switching chamber 200 capable of being switched to a plurality of temperature zones.Type: ApplicationFiled: December 5, 2007Publication date: April 8, 2010Applicant: Mitsubishi Electric CorporationInventors: Masumi Handa, Toshie Hiraoka, Isamu Hirashiki, Kiyoshi Yagita, Mariko Matsumoto, Katsumasa Sakamoto, Go Maeda, Kaori Ono, Hisao Isaka
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Patent number: 6637235Abstract: A refrigerator which may allow vegetables kept more fresh by minimizing temperature fluctuations in a vegetable compartment. The refrigerator minimizes dehydration in food stored in the vegetable compartment, so that vegetables are kept fresh longer. The vegetable compartment is arranged so as to be surrounded by freezing temperatures, and cooled through radiation cooling without receiving blowing cool air thereto to minimize temperature fluctuations, so that vegetables may be keep more fresh. At the same time, the vegetable compartment is sealed so that convection does not occur thereby minimizing dehydration in food, so that food is allowed to be kept fresh longer. Furthermore, the refrigerator is provided with compartments whose temperatures may be set to freezing temperatures. The vegetable compartment is arranged so as to be surrounded by compartments whose temperatures are freezing temperatures via partition parts.Type: GrantFiled: April 2, 2002Date of Patent: October 28, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Katsumasa Sakamoto, Toshie Hiraoka, Keiji Ohya, Naho Misumi
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Patent number: 6526766Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: GrantFiled: June 14, 2000Date of Patent: March 4, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Publication number: 20030024254Abstract: An odorless refrigerator with a deodorizing function free from insufficient refrigeration, which is provided with a deodorizing device operable with a stable deodorizing performance for a long time, simply structured, small-sized, and provided at a low cost. The refrigerator includes a draft air duct as a passage of refrigerated air blown off forcibly by an inside fan to the compartments, a damper in the draft air duct and opens/closes to allow/prevent the supply of refrigerated air to the compartments, a bypass channel in the draft air duct between the damper and a cooling device for returning refrigerated air from the cooling device to the cooling device, and a deodorizing device in the by-pass channel for deodorizing refrigerated air supplied to the compartments. The refrigerated air inside the draft air duct between the damper and the cooling device is forcibly blown off through the bypass channel by closing the damper.Type: ApplicationFiled: March 25, 2002Publication date: February 6, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Junji Yoshida, Mutsumi Kato, Toshie Hiraoka, Keiji Ohya, Masao Araki
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Publication number: 20030010056Abstract: A refrigerator which may allow vegetables kept more fresh by minimizing temperature fluctuations in a vegetable compartment. The refrigerator minimizes dehydration in food stored in the vegetable compartment, so that vegetables are kept fresh longer. The vegetable compartment is arranged so as to be surrounded by freezing temperatures, and cooled through radiation cooling without receiving blowing cool air thereto to minimize temperature fluctuations, so that vegetables may be keep more fresh. At the same time, the vegetable compartment is sealed so that convection does not occur thereby minimizing dehydration in food, so that food is allowed to be kept fresh longer. Furthermore, the refrigerator is provided with compartments whose temperatures may be set to freezing temperatures. The vegetable compartment is arranged so as to be surrounded by compartments whose temperatures are freezing temperatures via partition parts.Type: ApplicationFiled: April 2, 2002Publication date: January 16, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Katsumasa Sakamoto, Toshie Hiraoka, Keiji Ohya, Naho Misumi
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Patent number: 6405547Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: GrantFiled: September 20, 2001Date of Patent: June 18, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Patent number: 6405544Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: GrantFiled: September 20, 2001Date of Patent: June 18, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Patent number: 6401481Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: GrantFiled: September 20, 2001Date of Patent: June 11, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Publication number: 20020017103Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: ApplicationFiled: September 20, 2001Publication date: February 14, 2002Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Publication number: 20020014082Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: ApplicationFiled: September 20, 2001Publication date: February 7, 2002Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Publication number: 20020011072Abstract: A temperature controller is in a position at a height of 130 cm or more from a base surface settling, of which the refrigerator is settled, on a door of the refrigerator, which position is on an upper side of a handle for opening and closing the door. Further, a minute control depending on a preserving condition of foods, the seasons, a quantity of the foods, and so on is made possible.Type: ApplicationFiled: September 20, 2001Publication date: January 31, 2002Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Keiji Ohya
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Patent number: 6314746Abstract: A refrigerator includes a new temperature zone of freezer compartment as a compartment having a new temperature zone not higher than a lower limit of a maximum ice forming temperature zone and higher than a freezing temperature zone. The new temperature zone may be added as one of selective temperature zones for a switchable compartment which can be switchable so as to have a refrigerating compartment temperature zone, an icing temperature zone, a vegetable compartment temperature zone and a freezer compartment temperature zone.Type: GrantFiled: July 12, 1999Date of Patent: November 13, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Keiji Ohya, Toshie Hiraoka, Yuki Nagai
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Publication number: 20010009100Abstract: A refrigerator includes a new temperature zone of freezer compartment as a compartment having a new temperature zone not higher than a lower limit of a maximum ice forming temperature zone and higher than a freezing temperature zone. The new temperature zone may be added as one of selective temperature zones for a switchable compartment which can be switchable so as to have a refrigerating compartment temperature zone, an icing temperature zone, a vegetable compartment temperature zone and a freezer compartment temperature zone.Type: ApplicationFiled: July 12, 1999Publication date: July 26, 2001Inventors: KEIJI OHYA, TOSHIE HIRAOKA, YUKI NAGAI
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Patent number: 6055826Abstract: A refrigerator having a main body; a refrigerating compartment arranged at an upper position in the main body to refrigerate foods; and at least three lower compartments vertically arranged under the refrigerating compartment; wherein at least one of the lower compartments is a freezer compartment for freezing foods, and one of the remaining lower compartments is a vegetable compartment to store vegetables or a switchable compartment to make a temperature zone therein switchable between a freezing temperature zone and a temperature zone for refrigerated foods, vegetables or chilled foods.Type: GrantFiled: September 23, 1998Date of Patent: May 2, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshie Hiraoka, Isao Naito, Noriyuki Suda, Mutsumi Kato, Hisashi Matsui, Hiroshige Konishi, Katsumasa Sakamoto
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Patent number: 5983654Abstract: In a freezer-equipped refrigerator, a refrigerating chamber or freezing chamber is divided into a plurality of sections having substantially same temperature zone. A temperature element is provided in each section, and an open/close damper and a duct for supplying cool wind for each section are also provided. In such a structure, control is made on whether or not cool wind should be supplied or not in accordance with a detected temperature.Type: GrantFiled: May 22, 1997Date of Patent: November 16, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kazu Yamamoto, Toshie Hiraoka, Mutsumi Kato, Katsumasa Sakamoto, Kunihiko Yagi
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Patent number: 5527459Abstract: A microbe propagation preventing apparatus is provided to prevent an ion from decreasing at a time of decomposing ozone generated by gaseous discharge or ionization so as to sufficiently generate air ion, and to sufficiently prevent propagation of microbes adhering to an object by using the air ion without secondary pollution. Further, in the apparatus, a gas containing the ion is supplied into water so as to prevent the microbe propagation in the water. In the apparatus, an ozone decomposing chamber is mounted to be electrically insulated from an air duct. An electrode to remove a positive ion is mounted to obtain only a negative ion, and extend a lifetime of the obtained ion. An ion supplying portion is mounted to supply an ionized gas into a space housing the object in which microbes can be propagated, and return the ionized gas to an ionization chamber. Further, a diffusing apparatus is provided to transform the ionic gas into bubbles so as to feed the bubbles into the water in the water reservoir.Type: GrantFiled: September 22, 1994Date of Patent: June 18, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Ikeda, Yasuhiro Tanimura, Naoki Nakatsugawa, Masaaki Tanaka, Hiroshige Konishi, Toshie Hiraoka, Shinji Nishio, Hiroto Kawahira
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Patent number: 5484570Abstract: A microbe propagation preventing apparatus and a microbe propagation preventing method are provided to prevent anion from decreasing at a time of decomposing ozone generated by gaseous discharge or ionization so as to sufficiently generate air ion, and to sufficiently prevent propagation of microbes adhering to an object by using the air ion without secondary pollution. Further, in the apparatus and the method, a gas containing the ion is supplied into water so as to prevent the microbe propagation in the water. In the apparatus, an ozone decomposing chamber is mounted to be electrically insulated from an air duct. An electrode to remove a positive ion is mounted to obtain only a negative ion, and extend a lifetime of the obtained ion. An ion supplying portion is mounted to supply an ionized gas into a space housing the object in which microbes can be propagated, and return the ionized gas to an ionization chamber.Type: GrantFiled: September 22, 1994Date of Patent: January 16, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Ikeda, Yasuhiro Tanimura, Naoki Nakatsugawa, Masaaki Tanaka, Hiroshige Konishi, Toshie Hiraoka, Shinji Nishio, Hiroto Kawahira
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Patent number: 5445798Abstract: A microbe propagation preventing apparatus and a microbe propagation preventing method are provided to prevent an ion from decreasing at a time of decomposing ozone generated by gaseous discharge or ionization so as to sufficiently generate air ion, and to sufficiently prevent propagation of microbes adhering to an object by using the air ion without secondary pollution. Further, in the apparatus and the method, a gas containing the ion is supplied into water so as to prevent the microbe propagation in the water. In the apparatus, an ozone decomposing chamber is mounted to be electrically insulated from an air duct. An electrode to remove a positive ion is mounted to obtain only a negative ion, and extend a lifetime of the obtained ion. An ion supplying portion is mounted to supply an ionized gas into a space housing the object in which microbes can be propagated, and return the ionized gas to an ionization chamber.Type: GrantFiled: November 22, 1993Date of Patent: August 29, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Ikeda, Yasuhiro Tanimura, Naoki Nakatsugawa, Masaaki Tanaka, Hiroshige Konishi, Toshie Hiraoka, Shinji Nishio, Hiroto Kawahira