Patents by Inventor Yukinori Nakagawa
Yukinori Nakagawa 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: 12018424Abstract: A compact washing machine capable of improving detergency or reducing a washing time is provided. A drum 30 may be rotatably installed in a tub 20 installed in the inside of a housing 10 in the state in which an opening 12 is toward an opening of the drum 30. A pulsator 40 having a protrusion 45 extending in a radial direction may be rotatably installed on a bottom of the drum 30. During washing operation, a controller 60 may control a driving device 50 to rotate the pulsator 40 and the drum 30 in opposite directions.Type: GrantFiled: January 21, 2022Date of Patent: June 25, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Izumi Ikeda, Katsuyuki Shimakage, Yukinori Nakagawa, Yasumasa Nagasaki, Hiroshi Watanabe, Tukasa Ida, Kiyonobu Yoshida
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Patent number: 11365504Abstract: A washing machine and a driver (e.g., a drive unit) suitable for the washing machine are provided. The driver includes a motor to rotate a shaft supported by a unit base, and a reducer interposed between the shaft and the motor. The motor and the reducer are integrally formed to be aligned in a line along a direction perpendicular to a rotation axis.Type: GrantFiled: January 16, 2020Date of Patent: June 21, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Yasuyuki Sonoda, Yukinori Nakagawa
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Publication number: 20220145513Abstract: A compact washing machine capable of improving detergency or reducing a washing time is provided. A drum 30 may be rotatably installed in a tub 20 installed in the inside of a housing 10 in the state in which an opening 12 is toward an opening of the drum 30. A pulsator 40 having a protrusion 45 extending in a radial direction may be rotatably installed on a bottom of the drum 30. During washing operation, a controller 60 may control a driving device 50 to rotate the pulsator 40 and the drum 30 in opposite directions.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Inventors: Izumi IKEDA, Katsuyuki SHIMAKAGE, Yukinori NAKAGAWA, Yasumasa NAGASAKI, Hiroshi WATANABE, Tukasa IDA, Kiyonobu YOSHIDA
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Patent number: 11255036Abstract: A compact washing machine capable of improving detergency or reducing a washing time is provided. A drum 30 may be rotatably installed in a tub 20 installed in the inside of a housing 10 in the state in which an opening 12 is toward an opening of the drum 30. A pulsator 40 having a protrusion 45 extending in a radial direction may be rotatably installed on a bottom of the drum 30. During washing operation, a controller 60 may control a driving device 50 to rotate the pulsator 40 and the drum 30 in opposite directions.Type: GrantFiled: July 28, 2017Date of Patent: February 22, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Izumi Ikeda, Katsuyuki Shimakage, Yukinori Nakagawa, Yasumasa Nagasaki, Hiroshi Watanabe, Tukasa Ida, Kiyonobu Yoshida
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Patent number: 11118298Abstract: A washing machine capable of independently driving two rotors using one inverter in a simple configuration without supplying a composite current includes an outer rotor having a plurality of switching magnets arranged at intervals in the circumferential direction, and an inner rotor having a plurality of stationary magnets arranged to be radially arranged at intervals in the circumferential direction. When a magnetizing current is supplied to the coil of the stator, the magnetic pole of the switching magnet is inverted and the number of the poles of the outer rotor is switched.Type: GrantFiled: July 20, 2017Date of Patent: September 14, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yukinori Nakagawa, Tomonori Ueno, Hiroshi Katsumoto, Kenji Kitajima, Yasuyuki Sonoda, Masaki Oshige, Hidekazu Funakoshi, Yasumasa Nagasaki
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Patent number: 11008693Abstract: Disclosed herein is a washing machine. The washing machine includes a housing provided with an inlet for laundry disposed on a front surface thereof, a water tub provided inside of the housing and configured to store water, a drum rotatably provided inside of the water tub, a pulsator provided inside of the drum and configured to be rotated independently of the drum, a motor provided with a stator, and a first and second rotor connected to the drum and the pulsator, respectively, and at least one processor configured to apply a q-axis current to the stator to rotate the second rotor and configured to apply a d-axis current to the stator to rotate the first rotor based on a phase difference between the first rotor and the second rotor.Type: GrantFiled: December 20, 2018Date of Patent: May 18, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Hidekazu Funakoshi, Tomonori Ueno, Yukinori Nakagawa, Hiroshi Katsumoto, Taro Yoshida, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
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Patent number: 10954621Abstract: The present disclosure includes a washing machine including an inner rotor and an outer rotor. An outer rotor and an inner rotor may be rotated in a synchronous rotation mode or a counter rotation mode by converting the number of magnetic poles of the outer rotor. When the outer rotor becomes inoperable when the outer rotor is set to the number of magnetic poles for performing the counter rotation mode, it is converted to the number of magnetic poles for performing the synchronous rotation mode while the outer rotor is stopped.Type: GrantFiled: December 20, 2018Date of Patent: March 23, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
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Patent number: 10826365Abstract: Disclosed is a motor improved to increase a magnetization property. The motor includes a stator including a plurality of teeth arranged to be spaced apart in a circumferential direction and a rotor configured to include a plurality of magnets arranged inside or outside the stator and to rotate while electromagnetically interacting with the stator. The plurality of teeth include first teeth having a first cross section and second teeth having a second cross section larger than the first cross section and is configured to switch at least one magnetic pole of the plurality of magnets by using the second teeth.Type: GrantFiled: December 20, 2018Date of Patent: November 3, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Yukinori Nakagawa, Yasuyuki Sonoda, Yasumasa Nagasaki
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Patent number: 10804823Abstract: Provided is a washing machine including: a stator including a coil; a rotor including a plurality of variable magnets each having a magnetic force variable, and rotatable with respect to the stator; a controller configured to control an energizing of the coil to increase or decrease a magnetic force of the variable magnet; and a plurality of position sensors each having a output voltage changed according to a magnetic flux of the variable magnet.Type: GrantFiled: December 20, 2018Date of Patent: October 13, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
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Patent number: 10753031Abstract: Provided is a washing machine motor capable of efficiently generating torque by improving a winding factor of coils with a relatively simple configuration. The washing machine motor (12) has an outer rotor (20), an inner rotor (30), and a stator (60). The outer rotor (20) and the inner rotor (30) share coils (63) of the stator (60), and a composite current is supplied to the coils (63) such that the outer rotor (20) and the inner rotor (30) are independently driven. The outer rotor (20) has forty eight outer magnets (24) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The inner rotor (30) has forty-two inner magnets (34) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The stator (60) has thirty-six I-shaped cores (61) and the coils (63).Type: GrantFiled: July 8, 2016Date of Patent: August 25, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hiroyuki Miyake, Yukinori Nakagawa, Kenji Kitajima, Toshihiro Kamii, Hidekazu Funakoshi, Nobuharu Nishikoori, Yasumasa Nagasaki, Takehiro Nakanishi, Hiroshi Katsumoto, Minoru Yoshida, Yasuyuki Sonoda, Masaki Oshige, Tomoyuki Okuno, Katsuyuki Shimakage, Hiroshi Wanatabe, Yuji Akita, Yoshinori Takashima
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Publication number: 20200232143Abstract: A washing machine and a driver (e.g., a drive unit) suitable for the washing machine are provided. The driver includes a motor to rotate a shaft supported by a unit base, and a reducer interposed between the shaft and the motor. The motor and the reducer are integrally formed to be aligned in a line along a direction perpendicular to a rotation axis.Type: ApplicationFiled: January 16, 2020Publication date: July 23, 2020Inventors: Yasuyuki SONODA, Yukinori NAKAGAWA
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Patent number: 10714989Abstract: Disclosed is a home appliance including a claw pole type motor, the claw pole type motor include a first core including a first core main body disposed on a rotary shaft, a first elongation portion disposed in the center portion of the first core main body and extending in the axial line direction of the rotary shaft, and a plurality of first claw poles disposed in the edge portion of the first core main body and extending in the axial line direction of the rotary shaft and a second core including a second core main body disposed on the rotary shaft, and a plurality of second claw poles disposed in the edge portion of the second core main body and extending in the axial line direction of the rotary shaft and a third core including a third core main body disposed on the rotary shaft, a second elongation portion disposed in the center portion of the third core main body and extending in the axial line direction of the rotary shaft, and a plurality of third claw poles disposed in the edge portion of the third coType: GrantFiled: November 26, 2015Date of Patent: July 14, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yasumasa Nagasaki, Yukinori Nakagawa, Yasuyuki Sonoda
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Patent number: 10673289Abstract: Provided is a high-powered low profile motor. The motor includes a stator (20) facing a rotor (50) while having a gap from the rotor (50). The stator (20) includes a ring-shaped connection core (10) formed by connecting a plurality of divided cores (5a) and an insulator (24) formed as if surrounding the connection core (10) by resin molding by an insertion forming. An inner diameter (r) of the connection core (10) is set smaller than inner diameters (R) of the divided cores (5a) bent in a half moon shape when connected.Type: GrantFiled: November 7, 2014Date of Patent: June 2, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yukinori Nakagawa, Minoru Yoshida, Yasuyuki Sonoda, Yasmasa Nagasaki
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Publication number: 20200080246Abstract: Provided is a washing machine motor capable of efficiently generating torque by improving a winding factor of coils with a relatively simple configuration. The washing machine motor (12) has an outer rotor (20), an inner rotor (30), and a stator (60). The outer rotor (20) and the inner rotor (30) share coils (63) of the stator (60), and a composite current is supplied to the coils (63) such that the outer rotor (20) and the inner rotor (30) are independently driven. The outer rotor (20) has forty eight outer magnets (24) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The inner rotor (30) has forty-two inner magnets (34) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The stator (60) has thirty-six I-shaped cores (61) and the coils (63).Type: ApplicationFiled: July 8, 2016Publication date: March 12, 2020Inventors: Hiroyuki MIYAKE, Yukinori NAKAGAWA, Kenji KITAJIMA, Toshihiro KAMII, Hidekazu FUNAKOSHI, Nobuharu NISHIKOORI, Yasumasa NAGASAKI, Takehiro NAKANISHI, Hiroshi KATSUMOTO, Minoru YOSHIDA, Yasuyuki SONODA, Masaki OSHIGE, Tomoyuki OKUNO, Katsuyuki SHIMAKAGE, Hiroshi WANATABE, Yuji AKITA, Yoshinori TAKASHIMA
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Publication number: 20190257020Abstract: A compact washing machine capable of improving detergency or reducing a washing time is provided. A drum 30 may be rotatably installed in a tub 20 installed in the inside of a housing 10 in the state in which an opening 12 is toward an opening of the drum 30. A pulsator 40 having a protrusion 45 extending in a radial direction may be rotatably installed on a bottom of the drum 30. During washing operation, a controller 60 may control a driving device 50 to rotate the pulsator 40 and the drum 30 in opposite directions.Type: ApplicationFiled: July 28, 2017Publication date: August 22, 2019Inventors: Izumi IKEDA, Katsuyuki SHIMAKAGE, Yukinori NAKAGAWA, Yasumasa NAGASAKI, Hiroshi WATANABE, Tukasa IDA, Kiyonobu YOSHIDA
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Publication number: 20190190362Abstract: Disclosed is a motor improved to increase a magnetization property. The motor includes a stator including a plurality of teeth arranged to be spaced apart in a circumferential direction and a rotor configured to include a plurality of magnets arranged inside or outside the stator and to rotate while electromagnetically interacting with the stator. The plurality of teeth include first teeth having a first cross section and second teeth having a second cross section larger than the first cross section and is configured to switch at least one magnetic pole of the plurality of magnets by using the second teeth.Type: ApplicationFiled: December 20, 2018Publication date: June 20, 2019Inventors: Yukinori Nakagawa, Yasuyuki Sonoda, Yasumasa Nagasaki
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Publication number: 20190190413Abstract: Provided is a washing machine including: a stator including a coil; a rotor including a plurality of variable magnets each having a magnetic force variable, and rotatable with respect to the stator; a controller configured to control an energizing of the coil to increase or decrease a magnetic force of the variable magnet; and a plurality of position sensors each having a output voltage changed according to a magnetic flux of the variable magnet.Type: ApplicationFiled: December 20, 2018Publication date: June 20, 2019Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
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Publication number: 20190186066Abstract: Disclosed herein is a washing machine. The washing machine includes a housing provided with an inlet for laundry disposed on a front surface thereof, a water tub provided inside of the housing and configured to store water, a drum rotatably provided inside of the water tub, a pulsator provided inside of the drum and configured to be rotated independently of the drum, a motor provided with a stator, and a first and second rotor connected to the drum and the pulsator, respectively, and at least one processor configured to apply a q-axis current to the stator to rotate the second rotor and configured to apply a d-axis current to the stator to rotate the first rotor based on a phase difference between the first rotor and the second rotor.Type: ApplicationFiled: December 20, 2018Publication date: June 20, 2019Inventors: Hidekazu Funakoshi, Tomonori Ueno, Yukinori Nakagawa, Hiroshi Katsumoto, Taro Yoshida, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
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Publication number: 20190186065Abstract: The present disclosure includes a washing machine including an inner rotor and an outer rotor. An outer rotor and an inner rotor may be rotated in a synchronous rotation mode or a counter rotation mode by converting the number of magnetic poles of the outer rotor. When the outer rotor becomes inoperable when the outer rotor is set to the number of magnetic poles for performing the counter rotation mode, it is converted to the number of magnetic poles for performing the synchronous rotation mode while the outer rotor is stopped.Type: ApplicationFiled: December 20, 2018Publication date: June 20, 2019Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
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Publication number: 20180030638Abstract: A washing machine capable of independently driving two rotors using one inverter in a simple configuration without supplying a composite current includes an outer rotor having a plurality of switching magnets arranged at intervals in the circumferential direction, and an inner rotor having a plurality of stationary magnets arranged to be radially arranged at intervals in the circumferential direction. When a magnetizing current is supplied to the coil of the stator, the magnetic pole of the switching magnet is inverted and the number of the poles of the outer rotor is switched.Type: ApplicationFiled: July 20, 2017Publication date: February 1, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yukinori Nakagawa, Tomonori Ueno, Hiroshi Katsumoto, Kenji Kitajima, Yasuyuki Sonoda, Masaki Oshige, Hidekazu Funakoshi, Yasumasa Nagasaki