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1. 发明专利

JP2002364853A HEATING COOKER 失效
公开(公告)号：JP2002364853A
公开(公告)日：2002-12-18
申请号：JP2001176413
申请日：2001-06-12
申请人： HITACHI HOME TEC LTD
发明人： HORIKIRI YASUSHI , ENDO MINORU , TACHIKAWA TERUYUKI , ABE TAKANORI
IPC分类号： F24C1/00 , F24C7/06
摘要： PROBLEM TO BE SOLVED: To reduce uneven heating for foods placed on a reception pan, and further reduce installation area by reducing the depth size of an article. SOLUTION: The objective heating cooker comprises a heating chamber 2 for accommodating a food 1, an upper reception pan 4 installed at an upper portion of a heating chamber 2 for placing a food 1, a lower reception pan 6 installed at a lower portion of the heating chamber, an upper heater 11 provided at an upper portion of the heating chamber 2, and a lower heater 12 provided at a bottom of the heating chamber. In the heating cooler, there are provided a blow-off outlet 9 positioned between the upper reception pan 4 and the lower reception pan 6 and disposed in a rear section wall surface of the heating chamber 2, a suction inlet 8 positioned at a lower portion from the lower reception pan 6 and disposed in the rear section wall surface of the heating chamber 2, a cross flow fan 10b fed into the heating chamber 2 from the blow-off outlet 9 and circulating air in the heating chamber 2, and a hot air circulation apparatus 10 comprising a hot air heater 10d for heating circulated air. There are disposed the cross flow fan 10b outside the rear bottom of the heating chamber 2, the hot air heater 10d at the center of the blow-off outlet 9, and the lower heater 12 on this side from the center on the bottom of the heating chamber 12.

2. 发明专利

JP2002081654A HIGH FREQUENCY HEATER 失效
公开(公告)号：JP2002081654A
公开(公告)日：2002-03-22
申请号：JP2000276598
申请日：2000-09-07
申请人： HITACHI HOME TEC LTD
发明人： MIYAJI KEITA , ENDO MINORU
IPC分类号： H05B6/68 , F24C7/02 , H05B6/64
摘要： PROBLEM TO BE SOLVED: To improve the temperature detection of food placed in two stages, and also enhance the handiness in use, in a high frequency heater where an infrared ray sensor is mounted. SOLUTION: A plurality of infrared sensors 3 are provided in the same place at the outside upper part of a heating chamber 2 for detecting the temperatures of the food 1 on a turntable 4 and the food 1 on a netted stand 5 with feet. Moreover, only the infrared ray sensor 3 capable of temperature detection of food 1 is operated. Furthermore, in case that there is no food 1 either on the turntable 4 or on the netted stand 5 with legs, this heater issues an alarm sound, and also stops high frequency heating.

3. 发明专利

JP2001167872A HIGH FREQUENCY HEATING APPARATUS 失效
公开(公告)号：JP2001167872A
公开(公告)日：2001-06-22
申请号：JP34960799
申请日：1999-12-09
申请人： HITACHI HOME TEC LTD
发明人： HOTTA AKIO , IWABUCHI YASUSHI , ENDO MINORU , SAKURAI OSAMU
IPC分类号： H05B6/76 , H05B6/64 , H05B6/74
摘要： PROBLEM TO BE SOLVED: To provide a high frequency heating apparatus having a door that does not need an insulating membrane for preventing a spark at an opposite position of the opening of a heating chamber. SOLUTION: Convex or concave electric field adjusting part 5 is provided at a ceiling portion of a heating chamber 3 and the electric field distribution adjusting part 5 controls radiation pattern of high frequency energy radiated into the heating chamber 3 from a magnetron 1 to weaken electric field strength of outer periphery of an opening 11 in the heating chamber 3, so that insulating membrane can be removed. The insulating membrane was necessary to be provided in the prior art in outer periphery of a door 12 opposing the outer periphery of an opening 11 for preventing spark. Therefore, the door can be manufactured inexpensively.

4. 发明专利

JPH11260544A HIGH FREQUENCY HEATING APPARATUS 失效
公开(公告)号：JPH11260544A
公开(公告)日：1999-09-24
申请号：JP6249098
申请日：1998-03-13
申请人： HITACHI HOME TEC LTD
发明人： ENDO MINORU , HASEGAWA YUICHI , ABE TAKANORI , HATANO HIDEAKI
IPC分类号： H05B6/78 , F24C7/02 , F24C15/16 , H05B6/74
摘要： PROBLEM TO BE SOLVED: To carry out high frequency heating at high efficiency without heating unevenness even in cases where a small quantity of an object to be treated is stored in a heating chamber. SOLUTION: In this high frequency heating apparatus has a structure, a plurality of radial supporting parts 8, 8,... are installed on a rotary stand 4 made of a metal in the direction toward an outer circumferential frame from a bearing part 6 and at least three of slots 9a, 9b, 9c with length in the radius direction equivalent to one wavelength of high frequency to be used for the apparatus are formed in these radial supporting parts and these radial supporting parts forming these slots are connected with other radial supporting parts by concentric circular supporting parts 7, 7,.... Consequently, electric fields formed above the rotary stand 4 are prevented from being interfered with one another and few crossing part of a metal in respective supporting part of the rotary stand is formed, so that electric field disorder possibly caused in crossing parts can be suppressed as much as possible.

5. 发明专利

JPH1140340A MICROWAVE HEATING DEVICE 失效
公开(公告)号：JPH1140340A
公开(公告)日：1999-02-12
申请号：JP19948597
申请日：1997-07-25
申请人： HITACHI HOME TEC LTD
发明人： ENDO MINORU , NOGUCHI TOSHIO , SUGAYA YUKITOSHI , KIKUCHI ITSUO , HISADA TOSHIHIKO
IPC分类号： H05B6/64 , F24C7/02 , H05B6/74 , H05B6/78
摘要： PROBLEM TO BE SOLVED: To equally, efficiently heat both heated materials in the case that the equal amount of the heated material is housed in upper and lower steps in a microwave heating device for heating at the same time the heated materials stacked in upper and lower two steps in a heating chamber while they are rotated. SOLUTION: A periphery part 15 of a placing shelf 3 made of a metal body is arranged in almost the central part in the longitudinal dimension of a power supply port 8 arranged in the side wall of a heating chamber 1, and microwaves are equally dispersed to an upper space 16 and a lower space 17 partitioned with a placing surface 13. A parallel line 19 having the length of integral times the half wave having an opening 18 in the placing surface 13 is arranged, and microwaves are secondarily radiated from the parallel line 19.

6. 发明专利

JPH1126151A MICROWAVE HEATING APPARATUS 失效
公开(公告)号：JPH1126151A
公开(公告)日：1999-01-29
申请号：JP18207597
申请日：1997-07-08
申请人： HITACHI HOME TEC LTD
发明人： ENDO MINORU , NOGUCHI TOSHIO , NISHINO TOSHIHISA , KIKUCHI ITSUO , HISADA TOSHIHIKO
IPC分类号： H05B6/64 , F24C7/02 , H05B6/72 , H05B6/74
摘要： PROBLEM TO BE SOLVED: To uniformly heat both heating objects when at least the quantity of heating objects is equally housed in the upper and lower stages in a microwave heating apparatus to simultaneously heat the heating objects while rotating the heating objects in layers in the upper and lower stages in a heating chamber. SOLUTION: A power supply port 8 is arranged in a side wall of a heating chamber 1, and a metallic placing shelf is arranged in the vertical directional almost center of its power supply port 8, and the heating chamber is partitioned into an upper space 15 and a lower space 16 by its placing shelf, and a vertical dimension of the respective spaces is set in the almost same. Therefore, a microwave is uniformly radiated to the upper space 15 and the lower space 16, and when at least the quantity of heating objects is equally housed in the upper and lower stages, both heating objects can be uniformly heated.

7. 发明专利

JPH08270960A HEATING AND COOKING DEVICE 失效
公开(公告)号：JPH08270960A
公开(公告)日：1996-10-18
申请号：JP7804195
申请日：1995-04-04
申请人： HITACHI HOME TEC LTD
发明人： SUGAYA YUKITOSHI , NOGUCHI TOSHIO , ENDO MINORU , TACHIKAWA TERUYUKI
IPC分类号： H05B6/68 , F24C7/02 , F24C7/08
摘要： PURPOSE: To realize a heating and cooking device in which a high precision automatic heating is performed in response to a weight of a heated item. CONSTITUTION: In an oven range in which an automatic high frequency heating and cooking is performed in response to a weight of a heated item placed on a rotary table 5 and also an oven heating is carried out with an electrical heater 3, a control circuit 10 takes a weight information related to the rotary table 5. In addition, since the weight information already inputted is stored after being revised, an accurate zero point in a weight sensing device is revised every time an electrical heating is performed even without arranging any manual correction key, so that even in the case of applying a weight sensing device of which aging deterioration or the like is expected, a high precision automatic heating can always be performed.

8. 发明专利

JPH08233281A OVEN RANGE 失效
公开(公告)号：JPH08233281A
公开(公告)日：1996-09-10
申请号：JP4024595
申请日：1995-02-28
申请人： HITACHI HOME TEC LTD
发明人： NOGUCHI TOSHIO , ENDO MINORU , SUGAYA YUKITOSHI
IPC分类号： F24C7/04
摘要： PURPOSE: To finish cooking of stuff to be cooked efficiently and excellently irrespective of a position where a square receiver receiving the stuff is placed in a heating chamber, by a construction wherein an outlet of an air straightening plate which can vary the quantity of hot air and the direction of letting out the air is opened and closed in accordance with the detected position of the square receiver in the case when cooking is conducted with two square receivers used at one time. CONSTITUTION: In the case when receiver holders 5 whereon square receivers 3 are placed are provided in two stages in the vertical direction on the left and right side walls 1a and 1b inside a heating chamber 1 and cooking is conducted with two square receivers 3 used at one time, air straightening plates 10 which can vary the quantity of hot air and the direction of letting out the air are provided between a hot air unit and hot air outlets 7a so that they can be opened and closed, while photosensors 6 are provided outside the receiver holders 5 in the upper and lower stages in the heating chamber 1 respectively. The outlets 7a of the air straightening plates 10 are opened and closed in accordance with the positions of the square receivers 3 detected by the photosensors 6. According to this constitution, it can be made unnecessary to select properly the positions of the receiver holders whereon the square receivers are placed, according to a cooking menu.

9. 发明专利

JPH0882423A HEATING COOKER 失效
公开(公告)号：JPH0882423A
公开(公告)日：1996-03-26
申请号：JP21843694
申请日：1994-09-13
申请人： HITACHI HOME TEC LTD
发明人： ENDO MINORU , NOGUCHI TOSHIO , SUGAYA YUKITOSHI , TACHIKAWA TERUYUKI
IPC分类号： G01R27/26 , F24C7/02 , H05B6/64 , H05B6/68
摘要： PURPOSE: To ensure highly accurate freezing/heating control by detecting a high frequency output for a predetermined heating time determined at the first time of starting of heating at a plurality of times over which the predetermined heating time elapses, and correcting the high frequency output on the basis of information concerning dielectric loss of foods. CONSTITUTION: A high frequency output of a magnetron 3 determined at the first time of starting of heating is determined at a plurality of predetermined time points after the starting of heating, e.g. at time points after the lapse of 40% of the whole predetermined heating time, after the lapse of 60%, and after the lapse of 90% by detecting an electric field intensity in a heating chamber 1 through an electric field intensity sensor 7 each time. Hereby, temperature rise of frozen foods 2 is checked. When it is judged to be needed on the basis of a result of the check to increase and decrease the high frequency output the high frequency output is corrected to an optimum value and the heating is continued. Hereby, the heating operation can be executed on the basis of optimum heating energy and hence highly accurate freezing heating control is ensured.

10. 发明专利

JP2004012031A COOKER 审中-公开
公开(公告)号：JP2004012031A
公开(公告)日：2004-01-15
申请号：JP2002166487
申请日：2002-06-07
申请人： HITACHI HOME TEC LTD
发明人： HORIKIRI YASUSHI , ENDO MINORU , TACHIKAWA TERUYUKI
IPC分类号： F24C1/00
摘要： PROBLEM TO BE SOLVED: To heat a food as uniform as possible so that the food is uniformly cooked. SOLUTION: The cooker comprises a heating chamber 2 that can accommodate and arrange an upper plate 4a and a lower plate 4b for placing a food 1 thereon, a hot air circulation unit 6 provided at the rear outside of the heating chamber 2, an upper heater 10 provided on the upper part, and a lower heater 9 provided on the bottom part. In the cooker, an upper front heater 10a provided on the upper front part of the heating chamber and a upper rear heater 10b provided on the rear part are arranged as the upper heater 10, and the power of the upper lower heater 10b is variable. COPYRIGHT: (C)2004,JPO

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