Patents by Inventor Yasumasa Nagasaki

Yasumasa Nagasaki 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).

  • Patent number: 12018424
    Abstract: 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: Grant
    Filed: January 21, 2022
    Date of Patent: June 25, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Izumi Ikeda, Katsuyuki Shimakage, Yukinori Nakagawa, Yasumasa Nagasaki, Hiroshi Watanabe, Tukasa Ida, Kiyonobu Yoshida
  • Publication number: 20220145513
    Abstract: 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: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Izumi IKEDA, Katsuyuki SHIMAKAGE, Yukinori NAKAGAWA, Yasumasa NAGASAKI, Hiroshi WATANABE, Tukasa IDA, Kiyonobu YOSHIDA
  • Patent number: 11255036
    Abstract: 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: Grant
    Filed: July 28, 2017
    Date of Patent: February 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Izumi Ikeda, Katsuyuki Shimakage, Yukinori Nakagawa, Yasumasa Nagasaki, Hiroshi Watanabe, Tukasa Ida, Kiyonobu Yoshida
  • Patent number: 11118298
    Abstract: 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: Grant
    Filed: July 20, 2017
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yukinori Nakagawa, Tomonori Ueno, Hiroshi Katsumoto, Kenji Kitajima, Yasuyuki Sonoda, Masaki Oshige, Hidekazu Funakoshi, Yasumasa Nagasaki
  • Patent number: 11008693
    Abstract: 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: Grant
    Filed: December 20, 2018
    Date of Patent: May 18, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hidekazu Funakoshi, Tomonori Ueno, Yukinori Nakagawa, Hiroshi Katsumoto, Taro Yoshida, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Patent number: 10954621
    Abstract: 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: Grant
    Filed: December 20, 2018
    Date of Patent: March 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Patent number: 10927491
    Abstract: A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magnetizing operation one time and reversing polarities of the shifting magnets when a mode of the motor is shifted from a synchronous mode in which the first rotor and the second rotor rotate in the same direction to a counter mode in which the first rotor and the second rotor rotate in opposite directions, and shifting the mode of the motor to the counter mode while the magnetizing operation is performed one time times and relative positions of the first rotor and the second rotor are changed when the first rotor and the second rotor inertially rotate in the synchronous mode.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hiroyuki Miyake, Hidekazu Funakoshi, Hiroshi Katsumoto, Kenji Kitajima, Masaki Oshige, Nakagawa Yukinori, Tomonori Ueno, Yasumasa Nagasaki, Yasuyuki Sonoda
  • Patent number: 10826365
    Abstract: 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: Grant
    Filed: December 20, 2018
    Date of Patent: November 3, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yukinori Nakagawa, Yasuyuki Sonoda, Yasumasa Nagasaki
  • Patent number: 10804823
    Abstract: 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: Grant
    Filed: December 20, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Patent number: 10753031
    Abstract: 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: Grant
    Filed: July 8, 2016
    Date of Patent: August 25, 2020
    Assignee: 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
  • Patent number: 10714989
    Abstract: 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 co
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yasumasa Nagasaki, Yukinori Nakagawa, Yasuyuki Sonoda
  • Publication number: 20200080246
    Abstract: 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: Application
    Filed: July 8, 2016
    Publication date: March 12, 2020
    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
  • Publication number: 20190257020
    Abstract: 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: Application
    Filed: July 28, 2017
    Publication date: August 22, 2019
    Inventors: Izumi IKEDA, Katsuyuki SHIMAKAGE, Yukinori NAKAGAWA, Yasumasa NAGASAKI, Hiroshi WATANABE, Tukasa IDA, Kiyonobu YOSHIDA
  • Publication number: 20190190413
    Abstract: 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: Application
    Filed: December 20, 2018
    Publication date: June 20, 2019
    Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Publication number: 20190186066
    Abstract: 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: Application
    Filed: December 20, 2018
    Publication date: June 20, 2019
    Inventors: Hidekazu Funakoshi, Tomonori Ueno, Yukinori Nakagawa, Hiroshi Katsumoto, Taro Yoshida, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Publication number: 20190190362
    Abstract: 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: Application
    Filed: December 20, 2018
    Publication date: June 20, 2019
    Inventors: Yukinori Nakagawa, Yasuyuki Sonoda, Yasumasa Nagasaki
  • Publication number: 20190186065
    Abstract: 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: Application
    Filed: December 20, 2018
    Publication date: June 20, 2019
    Inventors: Tomonori Ueno, Hiroshi Katsumoto, Taro Yoshida, Hidekazu Funakoshi, Yukinori Nakagawa, Yasuyuki Sonoda, Masaki Oshige, Yasumasa Nagasaki
  • Publication number: 20190032266
    Abstract: A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magnetizing operation one time and reversing polarities of the shifting magnets when a mode of the motor is shifted from a synchronous mode in which the first rotor and the second rotor rotate in the same direction to a counter mode in which the first rotor and the second rotor rotate in opposite directions, and shifting the mode of the motor to the counter mode while the magnetizing operation is performed one time times and relative positions of the first rotor and the second rotor are changed when the first rotor and the second rotor inertially rotate in the synchronous mode.
    Type: Application
    Filed: January 26, 2018
    Publication date: January 31, 2019
    Inventors: Hiroyuki Miyake, Hidekazu Funakoshi, Hiroshi Katsumoto, Kenji Kitajima, Masaki Oshige, Nakagawa Yukinori, Tomonori Ueno, Yasumasa Nagasaki, Yasuyuki Sonoda
  • Publication number: 20180030638
    Abstract: 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: Application
    Filed: July 20, 2017
    Publication date: February 1, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yukinori Nakagawa, Tomonori Ueno, Hiroshi Katsumoto, Kenji Kitajima, Yasuyuki Sonoda, Masaki Oshige, Hidekazu Funakoshi, Yasumasa Nagasaki
  • Publication number: 20170366052
    Abstract: 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 co
    Type: Application
    Filed: November 26, 2015
    Publication date: December 21, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yasumasa NAGASAKI, Yukinori NAKAGAWA, Yasuyuki SONODA