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公开(公告)号：US12177956B2
公开(公告)日：2024-12-24
申请号：US17422824
申请日：2020-02-03
Inventor： Yoshiharu Oomori , Daisuke Hosokawa , Fumitaka Ogasawara , Mikio Fukui , Koji Yoshino , Takashi Uno
Abstract: A microwave treatment device includes a heating chamber for accommodating a heating target, a microwave generator, a feeder, a detector, and a controller. The microwave generator generates a microwave having a frequency in a specified frequency band. The feeder radiates the microwave inside the heating chamber. The detector detects a reflected microwave power reflected from the heating chamber. The controller causes the microwave generator to execute a frequency sweeping in the specified frequency band, and controls the microwave generator according to a temporal change in a frequency characteristic of the reflected microwave power. The temporal change in the frequency characteristic of the reflected microwave power is based on the frequency of the microwave, a level of the reflected microwave power, and a time passed from a start of heating. Thus, it is possible to accurately recognize the progress of cooking while heating the object.
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公开(公告)号：US11369011B2
公开(公告)日：2022-06-21
申请号：US17058353
申请日：2019-04-03
Inventor： Kazuyuki Sakiyama , Daisuke Hosokawa
Abstract: A high-frequency heating device that includes: a first conductor; a second conductor disposed with the first conductor through a space therebetween; a high-frequency power source that is connected to the first conductor and the second conductor and that applies a high-frequency voltage between the first conductor and the second conductor; and a connection path that electrically connects the first conductor and the second conductor to each other at a first connection position and a second connection position. The first connection position is different from a first power feeding position at which the first conductor and the high-frequency power source are connected to each other on the first conductor, and the second connection position is different from a second power feeding position at which the second conductor and the high-frequency power source are connected to each other on the second conductor.
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公开(公告)号：US11937360B2
公开(公告)日：2024-03-19
申请号：US17251941
申请日：2019-08-01
Inventor： Takashi Uno , Daisuke Hosokawa , Fumitaka Ogasawara , Mikio Fukui , Koji Yoshino , Yoshiharu Oomori
Abstract: A high frequency heating apparatus (1A) includes the following components: a first electrode (11) that is flat; a plurality of flat second electrodes (12) that are flat; a high-frequency power supply (20); a matching unit (30); a controller (40); and an electric field regulator (50). The second electrodes (12) are placed opposite to the first electrode (11). The high-frequency power supply (20) applies a high-frequency voltage to the first electrode (11). The matching unit (30) is placed between the first electrode (11) and the high-frequency power supply (20), and is impedance-matched with the high-frequency power supply (20). The controller (40) controls the high-frequency power supply (20). The electric field regulator (50) individually adjusts the electric field strengths in a plurality of regions located between first electrode (11) and the second electrodes (12). This aspect can reduce uneven heating.
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公开(公告)号：US12207376B2
公开(公告)日：2025-01-21
申请号：US17294411
申请日：2019-10-25
Inventor： Daisuke Hosokawa , Takashi Uno , Fumitaka Ogasawara , Koji Yoshino
Abstract: A high-frequency heating apparatus according to an embodiment of the present disclosure includes a heating chamber, an electrode, a high-frequency power supply, at least one matching element, and a controller. The heating chamber accommodates a heating target. The high-frequency power supply applies a high-frequency voltage to the electrode. The impedance matcher includes at least one matching element having a matching constant that is variable. The controller stops the high-frequency power supply to complete heating based on a temporal change of the matching constant of the at least one matching element. In this embodiment, a heating target can be heated efficiently.
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公开(公告)号：US12048082B2
公开(公告)日：2024-07-23
申请号：US17290724
申请日：2019-11-20
Inventor： Takashi Uno , Mikio Fukui , Koji Yoshino , Daisuke Hosokawa
Abstract: A high frequency heating apparatus of the present disclosure includes a first electrode (11), a second electrode (12), a high frequency power supply, a position adjuster (20), and a controller. The second electrode (12) is disposed facing the first electrode (11). The high frequency power supply supplies high frequency power to the first electrode (11) or the second electrode (12). The position adjuster (20) adjusts the position of the first electrode (11). The controller controls the position adjuster (20). The position adjuster (20) includes a weight (21), one or more connecting lines (22), one or more pulleys (23), and one or more drive units (24). The one or more connecting lines (22) connect the weight (21) and the first electrode (11). The one or more pulleys (23) support the one or more connecting lines (22). The one or more drive units (24) are attached to the one or more pulleys (23) and drive the one or more pulleys (23). In this embodiment, a heating target can be heated efficiently.
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Patent Agency Ranking
公开(公告)号：US11683867B2
公开(公告)日：2023-06-20
申请号：US17052968
申请日：2019-05-15
Inventor： Yoshiharu Oomori , Mikio Fukui , Daisuke Hosokawa
Abstract: A microwave treatment device includes a plurality of radiation parts, a transmission line, and a plurality of feeding parts. The plurality of radiation parts includes first, second, and third radiation parts, and radiates a microwave. The transmission line has a loop line structure provided with a plurality of branch parts including first, second, and third branch parts, and transmits the microwave to the first, second, and third radiation parts respectively connected to the first, second, and third branch parts. The plurality of feeding parts includes the first feeding part and the second feeding part arranged in the transmission line at an interval of ¼ or less of the wavelength of the microwave, and transmits the microwave to the transmission line. According to this aspect, a radiation part that radiates the microwave can be selectively switched. This enables the intended heating distribution to be achieved.
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公开(公告)号：US10356855B2
公开(公告)日：2019-07-16
申请号：US14785224
申请日：2014-04-18
Inventor： Masayuki Kubo , Koji Yoshino , Masafumi Sadahira , Daisuke Hosokawa , Yoshiharu Omori , Keijirou Kunimoto
Abstract: A microwave heating apparatus includes: a heating chamber which houses a heating object; a microwave generating unit which generates a microwave; a transmitting unit which transmits the microwave generated by the microwave generating unit; a waveguide-structure antenna which radiates to the heating chamber the microwave transmitted from the transmitting unit; and a rotation driving unit which drives the waveguide-structure antenna to rotate, wherein the waveguide-structure antenna has a microwave sucking-out opening in a wall surface forming a waveguide structure of the waveguide-structure antenna.
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公开(公告)号：US12144092B2
公开(公告)日：2024-11-12
申请号：US17603023
申请日：2020-07-28
Inventor： Kazuki Maeda , Daisuke Hosokawa , Yoshiharu Oomori , Koji Yoshino , Fumitaka Ogasawara , Takashi Uno
Abstract: A microwave treatment device of the present disclosure includes heating chamber (1) for accommodating object (2) to be heated, microwave generator (3), heater (7), power feeder (4), detector (5), and controller (6). Microwave generator (3) generates microwaves. Heater (7) includes a heat source other than the microwaves and heats an inside of heating chamber (1). Power feeder (4) supplies the heating chamber with the microwaves. Detector (5) detects reflected power from power feeder (4). Controller (6) controls heater (7) and microwave generator (3). When heater (7) carries out heating, Controller (6) causes microwave generator (3) to generate the microwaves in heating by heater (7). The microwaves have output power such that the reflected power at a level detectable by detector (5) returns. By present disclosure, by understanding progress of cooking, a heating target can be appropriately cooked.
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公开(公告)号：US12120805B2
公开(公告)日：2024-10-15
申请号：US17420408
申请日：2020-02-03
Inventor： Kazuki Maeda , Daisuke Hosokawa , Yoshiharu Oomori
Abstract: A high-frequency heating apparatus includes heating chamber (1), generator (2), radiator (3), and controller (30). Heating chamber (1) has a wall surface including metal, and accommodates object (4) to be heated. Generator (2) generates high-frequency power at any frequency in a band of 2.4 GHz to 2.5 GHz. Radiator (3) includes loop antenna (3) including a plurality of loop portions (3A, 3B), and radiates the high-frequency power generated by generator (2) to heating chamber (1). Controller (30) controls a frequency of the high-frequency power generated by generator (2). According to this aspect, a heating target can be uniformly heated or partially heated without a waveguide for transmitting high-frequency power.
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公开(公告)号：US12225654B2
公开(公告)日：2025-02-11
申请号：US17261920
申请日：2019-09-11
Inventor： Mikio Fukui , Takashi Uno , Fumitaka Ogasawara , Motoyoshi Iwata , Shinji Takano , Daisuke Hosokawa , Masayoshi Hiramoto
Abstract: A microwave heating device includes: a heating chamber for accommodating a heating target object, a microwave generator for generating a microwave, and a coaxial connector. The coaxial connector includes a center conductor, an insulator, and an external conductor. The center conductor is connected to an output terminal of the microwave generator. An air gap is defined between the center conductor and the insulator.
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