Patents by Inventor Masahiro Nishijima
Masahiro Nishijima 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: 20180343709Abstract: A heating cooker includes a body casing, a heating chamber, a magnetron that supplies microwaves into the heating chamber, a cooling fan that delivers cooling air flow to the magnetron, an air discharge duct that is for discharging discharge air from inside of the heating chamber to outside, a first guiding channel that guides into the heating chamber a portion of the cooling air flow from the cooling fan which has flowed out to a downstream side after cooling the magnetron, and a second guiding channel that guides toward the air discharge duct another portion of the cooling air flow from the cooling fan which has flowed out to the downstream side after cooling the magnetron.Type: ApplicationFiled: February 23, 2015Publication date: November 29, 2018Applicant: SHARP KABUSHIKI KAISHAInventors: Masahiro NISHIJIMA, Shinji ASAMI, Masaki KATABE
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Publication number: 20180135866Abstract: A steam generating container A heated by a heat source includes: a water evaporation chamber into which water is supplied by a water supply device; a leading opening to lead steam from the water evaporation chamber, and ejection openings ejecting steam led through the leading opening into a heating chamber containing food. A buffer chamber connecting through the leading opening and with the ejection openings is provided between the water evaporation chamber and the heating chamber. Even when bumping water enters the buffer chamber through the leading opening, the bumping water having entered flows inside the buffer chamber. Thus, the bumping water is hardly ejected into the heating chamber through the ejection openings.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Applicant: SHARP KABUSHIKI KAISHAInventors: Masahiro NISHIJIMA, Takashi UTSUMI, Takahiro FUKUNAGA
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Patent number: 9932163Abstract: A packaging structure for a cooking device is so configured that a packaging material (101) with trays (91, 92) packaged therewith is disposed in a heating chamber (2) with such an inclination that a one-side portion of the packaging material (101) becomes higher than the other-side portion of the packaging material (101). Also, the one-side portion of the packaging material (101) is placed on a one-side-portion side tray holder (16A). Further, a cushioning material (201) is inserted between an upper portion (2e) of the heating chamber (2) and the one-side portion of the packaging material (101), so that the one-side portion of the packaging material (101) is pressed against the one-side-portion side tray holder (16A) while the other-side portion of the packaging material (101) is pressed against the other-side-portion side inner side surface (2c) of the chamber.Type: GrantFiled: August 21, 2015Date of Patent: April 3, 2018Assignee: SHARP KABUSHIKI KAISHAInventor: Masahiro Nishijima
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Patent number: 9903597Abstract: A steam generating container A heated by a heat source includes: a water evaporation chamber into which water is supplied by a water supply device; a leading opening to lead steam from the water evaporation chamber, and ejection openings ejecting steam led through the leading opening into a heating chamber containing food. A buffer chamber connecting through the leading opening and with the ejection openings is provided between the water evaporation chamber and the heating chamber. Even when bumping water enters the buffer chamber through the leading opening, the bumping water having entered flows inside the buffer chamber. Thus, the bumping water is hardly ejected into the heating chamber through the ejection openings.Type: GrantFiled: April 27, 2011Date of Patent: February 27, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Masahiro Nishijima, Takashi Utsumi, Takahiro Fukunaga
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Patent number: 9625162Abstract: A cooker is equipped with a heating chamber having an open part in the front surface and holding an object to be cooked, an opening/closing door having a see-through window and opens and closes the open part, a suction intake opening opened in one of the side walls that faces the heating chamber, an air discharge outlet opened in the other side wall of the heating chamber, and a circulation duct having first and second side surface parts provided outside of the two side walls of the heating chamber and connecting the suction intake opening provided at the first side surface part and the air discharge outlet provided at the second side surface part. The cooker further includes a circulation fan provided inside the circulation duct and drawing in gas inside the heating chamber through the suction intake opening and blows it out through the air discharge outlet.Type: GrantFiled: July 24, 2009Date of Patent: April 18, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Kazushi Yoshimura, Kazushi Furukawa, Masahiro Nishijima, Hiromi Suenaga
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Publication number: 20160355317Abstract: A packaging structure for a cooking device is so configured that a packaging material (101) with trays (91, 92) packaged therewith is disposed in a heating chamber (2) with such an inclination that a one-side portion of the packaging material (101) becomes higher than the other-side portion of the packaging material (101). Also, the one-side portion of the packaging material (101) is placed on a one-side-portion side tray holder (16A). Further, a cushioning material (201) is inserted between an upper portion (2e) of the heating chamber (2) and the one-side portion of the packaging material (101), so that the one-side portion of the packaging material (101) is pressed against the one-side-portion side tray holder (16A) while the other-side portion of the packaging material (101) is pressed against the other-side-portion side inner side surface (2c) of the chamber.Type: ApplicationFiled: August 21, 2015Publication date: December 8, 2016Inventor: Masahiro NISHIJIMA
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Publication number: 20160212801Abstract: A heating cooker includes a body casing, a heating chamber, a magnetron that supplies microwaves into the heating chamber, a cooling fan that delivers cooling air flow to the magnetron, an air discharge duct that is for discharging discharge air from inside of the heating chamber to outside, a first guiding channel that guides into the heating chamber a portion of the cooling air flow from the cooling fan which has flowed out to a downstream side after cooling the magnetron, and a second guiding channel that guides toward the air discharge duct another portion of the cooling air flow from the cooling fan which has flowed out to the downstream side after cooling the magnetron.Type: ApplicationFiled: February 23, 2015Publication date: July 21, 2016Applicant: SHARP KABUSHIKI KAISHAInventors: Masahiro NISHIJIMA, Shinji ASAMI, Masaki KATABE
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Patent number: 8464705Abstract: An open/close adjustment device is connected to the door of a heating chamber of a cooking device, and the open/close adjustment device pulls the door back to its totally closed position. The open/close adjustment device adjusts an operation force when the door is passing a predetermined open angle. The operation force indicates a maximum value when the door is passing the predetermined open angle, and the maximum value is given by two protrusions disposed at front-side and rear-side with distance between them. Each of the protrusions each produces a load when they go over a support member, and a following one of the two protrusions produces a load larger than a load firstly produced by a preceding one of the two protrusions when the door is opened.Type: GrantFiled: July 9, 2007Date of Patent: June 18, 2013Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kitayama, Masahiro Nishijima, Takeyuki Ozaki
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Publication number: 20130042768Abstract: A steam generating container A heated by a heat source includes: a water evaporation chamber into which water is supplied by a water supply device; a leading opening to lead steam from the water evaporation chamber, and ejection openings ejecting steam led through the leading opening into a heating chamber containing food. A buffer chamber connecting through the leading opening and with the ejection openings is provided between the water evaporation chamber and the heating chamber. Even when bumping water enters the buffer chamber through the leading opening, the bumping water having entered flows inside the buffer chamber. Thus, the bumping water is hardly ejected into the heating chamber through the ejection openings.Type: ApplicationFiled: April 27, 2011Publication date: February 21, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Masahiro Nishijima, Takashi Utsumi, Takahiro Fukunaga
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Patent number: 8288695Abstract: A cooking device for performing cooking using a microwave and steam, in which a door of a heating chamber includes, as constituting components, an inner frame, a choke cover, and a gasket. The inner frame is made of metal and has at its periphery a choke structure constructed from a large number of comb teeth. The gasket is installed in the door with a base section of the gasket held between the inner frame and the choke cover. A lip section of the gasket has a bag-like cross-section whose side that faces the inside of the heating chamber is an entrance. The forward end of the lip section is bent to the door side. The comb teeth, except those positioned at the corners of the door, are bent at a larger angle than in a case in which the gasket is not installed.Type: GrantFiled: August 25, 2006Date of Patent: October 16, 2012Assignee: Sharp Kabushiki KaishaInventors: Masahiro Nishijima, Hiroki Kitayama
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Patent number: 8161870Abstract: A heating cooker includes a steam generator for generating steam for heating cooking, a removable water tank for storing water to be supplied to the steam generator, a pump 35 for supplying water from the water tank to the steam generator, a drain valve 70 for draining water within the steam generator into the water tank, a first timer TM1 which starts counting when water is supplied to the steam generator by the pump 35, and an operation panel 11 including a notification section for notifying of draining the water within the water tank. When the first timer TM1 has counted over a first specified time, the control unit 80 makes the operation panel 11 notify of draining the water within the water tank.Type: GrantFiled: July 26, 2006Date of Patent: April 24, 2012Assignee: Sharp Kabushiki KaishaInventors: Yoshikazu Yamamoto, Masahiro Nishijima, Toshiaki Ueki
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Publication number: 20120087721Abstract: Inner claws of a fitting part 210 of a dial 105 are engaged with engaging grooves in a rotary encoder 320. A plurality of retaining projections are formed in the dial 105. The retaining projections project radially outward from the fitting part 210 at circumferential intervals from one another. A through hole 500 through which the fitting part 210 can pass and a plurality of recesses through which the plurality of retaining projections can pass are formed in a door frame 120. The plurality of retaining projections are allowed to pass through the recesses only when the retaining projections are coincident in circumferential phase with the recesses. The retaining projections are positioned on one side of the recess portions opposite to an operation part 200 side so as to be freely turnable in synchronism with turning of the operation part 200.Type: ApplicationFiled: June 11, 2010Publication date: April 12, 2012Inventors: Masahiro Nishijima, Noriko Ina
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Publication number: 20120031282Abstract: A cooking device has a cam mechanism (104) which moves in association with the pivoting of a door (103). The cam mechanism (104) includes a cam roller (131) rotatably mounted to a support base (130), an arm (132) having a front end pivotable connected to the door (103), having a cam surface (134) in sliding contact with the cam roller (131), and capable of moving in to-and-fro direction relative to a casing, and a coiled spring (133) stretched between the support base (130) and a rear end of the arm (132). The arm (132) has a recess (135) on a surface facing the door (103). When the door (103) is fully open, the recess (135) forms between the door (103) and the arm (132) a space (S) having sufficient size allowing a user's finger to be inserted in and removed from the space.Type: ApplicationFiled: April 16, 2010Publication date: February 9, 2012Inventors: Hiroki Kitayama, Masahiro Nishijima
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Publication number: 20120017882Abstract: A cooking device is provided with a casing, a heating compartment (102) provided within the casing and having an opening on the front face side of the heating compartment, a door for opening and closing the opening of the heating compartment (102), a lamp (104) for lighting the inside of the heating compartment (102), and a steel plate (134) mounted indirectly to the heating compartment (102). The lamp (104) is mounted to the free end section of the steel plate (134).Type: ApplicationFiled: March 23, 2010Publication date: January 26, 2012Inventors: Yoshikazu Kitaguchi, Kazushi Yoshimura, Masahiro Nishijima
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Publication number: 20110132346Abstract: A cooking device (1) has a discharge/dilution device (70) that dilutes air discharged from the heating chamber (20). The discharge/dilution device (70) includes: an outlet duct (72) that discharges, through a first ejector (74) via an outlet (72a), air fed by a dilution fan (71); a dilution duct (73) which is arranged in the outlet duct (72) and whose one end is connected to a suction port (72c) provided in a position where the first ejector (74) produces a suction effect and whose other end is an air intake port (73a); and a discharge duct (24) whose one end is connected to the discharge port (25) provided in a side wall of the heating chamber (20) and whose other end is connected through a second ejector (75) to a position between the suction port (72c) and the air intake port (73a) in the dilution duct (73).Type: ApplicationFiled: August 26, 2009Publication date: June 9, 2011Inventors: Yasuaki Sakane, Takao Murai, Masahiro Nishijima
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Publication number: 20110126819Abstract: The cooker is equipped with a heating chamber (2) that has an open part (2d) in the front surface and that holds the material to be cooked, an opening/closing door (3) that has a see-through window (4) and that opens and closes the open part, a suction intake opening (2a) that is open in one of the side walls that faces the heating chamber (2), an air discharge outlet (2b) that is open in the other side wall of the heating chamber (2), and a circulation duct (20) that has first and second side surface parts (20a, 20b) that are provided outside of the two side walls of the heating chamber (2) and that connect the suction intake opening (2a) provided at the first side surface part (20a) and the air discharge outlet (2b) provided at the second side surface part (20b), and a circulation fan (21) that is provided inside the circulation duct (20) and that draws in gas inside the heating chamber (2) through the suction intake opening (2a) and blows it out through the air discharge outlet (2b).Type: ApplicationFiled: July 24, 2009Publication date: June 2, 2011Inventors: Kazushi Yoshimura, Kazushi Furukawa, Masahiro Nishijima, Hiromi Suenaga
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Publication number: 20100154656Abstract: A cover portion (96) for covering an opening of a tank body serving as a water tank is provided with a water receiving section (97) formed of a recess for temporary reception of supplied water, and the water receiving section (97) is provided with mesh-like filters (93a, 93b). Thus, scale or other impurities contained in discharge water derived from a pot of a steam generator and discharged from a drain valve are filtrated by the filters (93a, 93b), by which the discharge water from the pot is recycled as water for steam generation without using any special purification system. Therefore, the number of times of water supply to the water tank can be reduced without using any special purification system.Type: ApplicationFiled: July 25, 2006Publication date: June 24, 2010Inventors: Yoshikazu Yamamoto, Masahiro Nishijima, Tatsuhiko Nakamura
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Publication number: 20100101555Abstract: A heating cooker comprising a body casing, a door openably fitted to the front panel of the body casing through hinges, and an annular packing (40) of the circumferentially same shape in cross section disposed between the door and the front panel. The hinge side of the annular packing (40) fitted to the door (including a door frame (41) and a door cover (42)) is positioned on the front side by a dimension L from the anti-hinge side of the annular packing.Type: ApplicationFiled: July 26, 2006Publication date: April 29, 2010Inventors: Kiyoshi Yamaguchi, Masahiro Nishijima, Hiroki Kitayama
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Patent number: 7705274Abstract: A cooker has an external circulation path outside a heating chamber in which foods are to be placed. A blower sucks in gas inside the heating chamber, and forms, in the external circulation path, a gas flow that makes the sucked gas return to the heating chamber. Downstream of the blower, the external circulation path is provided with an exhaust port, in which a damper is provided. The damper closes the exhaust port during cooking, and opens the exhaust port when a door of the heating chamber is opened. After the damper is changed to a position of opening the exhaust port, the blower continues to operate until a predetermined condition is satisfied.Type: GrantFiled: August 5, 2004Date of Patent: April 27, 2010Assignee: Sharp Kabushiki KaishaInventors: Yuhji Andoh, Toshiyuki Irie, Shinya Ueda, Masami Umemoto, Tadanobu Kimura, Fuminori Kaneko, Yoshikazu Yamamoto, Masahiro Nishijima
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Publication number: 20100006084Abstract: An open/close adjustment device is connected to the door of a heating chamber of a cooking device, and the open/close adjustment device pulls the door back to its totally closed position. The open/close adjustment device adjusts an operation force when the door is passing a predetermined open angle. The operation force indicates a maximum value when the door is passing the predetermined open angle, and the maximum value is given by two protrusions disposed at front-side and rear-side with distance between them. Each of the protrusions each produces a load when they go over a support member, and a following one of the two protrusions produces a load larger than a load firstly produced by a preceding one of the two protrusions when the door is opened.Type: ApplicationFiled: July 9, 2007Publication date: January 14, 2010Inventors: Hiroki Kitayama, Masahiro Nishijima, Takeyuki Ozaki