Patents by Inventor Ki-Suk Woo
Ki-Suk Woo 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: 9553497Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The casing defines an internal space therein. The bracket is disposed under the casing. A cylindrical coil is provided on the bracket. The vibration unit has a magnet, a yoke and a weight. The yoke contains the magnet therein and is open on the lower end thereof. The weight is coupled to the outer surface of the yoke. The springs are coupled to sidewall plates of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction.Type: GrantFiled: April 30, 2013Date of Patent: January 24, 2017Assignee: MPLUS CO., LTD.Inventors: Yong Jin Kim, Jun Kun Choi, Jae Woo Jun, Ki Suk Woo, Kwang Hyung Lee, Je Hyun Bang, Seok Jun Park, Kyung Ho Lee, Hwa Young Oh
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Patent number: 8917009Abstract: Disclosed are a vibration generator, which can increase the vibration force of a vibration plate by additionally applying the mass of a mass body to the vibration plate, and an electronic device including the same. The vibration generator includes at least one piezoelectric element mounted inside the case and subjected to compression and expansion in response to input power, a vibration plate including a body elongated in a preset lengthwise direction and having the at least one piezoelectric element mounted thereon, and generating vibrations by the compression and expansion of the at least one piezoelectric element, and at least one mass part adding a preset magnitude of mass to the vibration plate.Type: GrantFiled: January 5, 2011Date of Patent: December 23, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki Suk Woo, Yeon Ho Son, Jae Kyung Kim, Dong Sun Park, Ji Yeoun Jang, Kum Kyung Lee
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Patent number: 8884747Abstract: There is provided a lightweight, slim and compact haptic feedback device due to an actuator module constituted of a piezoelectric element and a vibration plate, and an electronic device having the same. The haptic feedback device includes a haptic device receiving contact pressure applied thereto, and an actuator module being in contact with a lower surface of the haptic device and excited according to variations in contact pressure with the haptic device to thereby generate vibrations.Type: GrantFiled: November 29, 2010Date of Patent: November 11, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki Suk Woo, Dae Woong Yun, Su Young Jung, Yeon Ho Son, Dong Sun Park, Kum Kyung Lee, Ji Yeoun Jang, Chang Soo Kim, Jae Kyung Kim
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Patent number: 8564164Abstract: A motor includes a rotating member including a first magnet, and a fixed member supporting the rotating member and including a second magnet configuring a magnetic bearing part together with the first magnet. A gap between the first and second magnets is larger than at least one of a contact prevention gap between the rotating member and the fixed member and a clearance between a shaft and a sleeve supporting the shaft.Type: GrantFiled: September 21, 2011Date of Patent: October 22, 2013Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Ho Kim, Shin Young Cheong, Ki Suk Woo
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Patent number: 8487513Abstract: Disclosed herein is a piezoelectric actuator. The piezoelectric actuator includes a piezoelectric element generating vibrations by repetitively expanding and restoring according to power applied from the outside to be linearly driven; a support member contacts the piezoelectric element in order to support the piezoelectric element; and vibration control members attached to one surface of and the support member and the piezoelectric element.Type: GrantFiled: February 2, 2011Date of Patent: July 16, 2013Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Sun Park, Jae Kyung Kim, Yeon Ho Son, Ki Suk Woo, Kum Kyung Lee, Ji Yeoun Jang
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Patent number: 8476806Abstract: Disclosed herein is a piezoelectric actuator module. The piezoelectric actuator module includes a flat plate, two or more elastic members, and a piezoelectric element. The elastic members are provided on each of opposite ends of the plate in a longitudinal direction thereof and protrude perpendicularly from the plate in such a way that a first end of each of the elastic members is coupled to an electronic device. The piezoelectric element is provided on a first surface of the plate and transmits vibrating force to the electronic device. The piezoelectric actuator module includes a plate having on opposite ends thereof two or more elastic members, thus being capable of controlling vibrating force by changing the length of the plate and the number of the elastic members, in addition to reliably supporting piezoelectric elements provided on the plate.Type: GrantFiled: May 5, 2010Date of Patent: July 2, 2013Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Kyung Kim, Yeon Ho Son, Ki Suk Woo, Su Young Jung, Ji Yeoun Jang, Dong Sun Park, Kum Kyung Lee, Dae Woong Yun
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Patent number: 8466604Abstract: A vibration actuator module is disclosed. In accordance with an embodiment of the present invention, the vibration actuator module includes a vibrated body, a vibrating plate, which is coupled to the vibrated body and has a smaller elastic modulus than the vibrated body, and a driver, which is coupled to the vibrating plate.Type: GrantFiled: May 4, 2010Date of Patent: June 18, 2013Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki-Suk Woo, Yeon-Ho Son, Su-Young Jung, Dong-Sun Park, Dae-Woong Yun, Kum-Kyung Lee, Ji-Yeoun Jang, Jae-Kyung Kim
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Publication number: 20120306304Abstract: There is provided a motor including: a rotating member including a first magnet; and a fixed member supporting the rotating member and including a second magnet configuring a magnetic bearing part together with the first magnet, wherein a gap between the first and second magnets is larger than at least one of a contact prevention gap between the rotating member and the fixed member and a clearance between a shaft and a sleeve supporting the shaft.Type: ApplicationFiled: September 21, 2011Publication date: December 6, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ju Ho Kim, Shin Young Cheong, Ki Suk Woo
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Patent number: 8324786Abstract: Disclosed herein is a piezoelectric actuator module. The piezoelectric actuator module includes a flat plate. An elastic member is provided on each of opposite ends of the plate in a longitudinal direction thereof, and protrudes perpendicularly from the plate in such a way that a first end of the elastic member is coupled to an electronic device. A plate-shaped elastic body is provided on a first surface of the plate. A piezoelectric element is provided on a first surface of the elastic body. The plate-shaped elastic body is provided between the plate and the piezoelectric element, so that the overall spring constant of the piezoelectric actuator module is lowered and thus the vibrating force of the piezoelectric actuator module is increased.Type: GrantFiled: May 25, 2010Date of Patent: December 4, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Kyung Kim, Yeon Ho Son, Ki Suk Woo, Su Young Jung, Ji Yeoun Jang, Dong Sun Park, Kum Kyung Lee, Dae Woong Yun
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Publication number: 20120299418Abstract: There is provided a bearing assembly and a motor including the same, bearing assembly including: a shaft including a first magnet provided thereon; a sleeve including a second magnet provided therein and disposed to face the first magnet so as to support the shaft; and a damping part disposed at a position at which the first and second magnets have maximum magnetic flux density in order to damp vibrations of the first and second magnets.Type: ApplicationFiled: August 3, 2011Publication date: November 29, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ki Suk Woo, Ju Ho Kim, Shin Young Cheong, Han Byul Kim
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Publication number: 20120293028Abstract: Disclosed herein are a bearing assembly and a spindle motor including the same. The bearing assembly includes: a shaft having a first magnet formed on an outer circumferential surface thereof; and a sleeve having a second magnet formed on an inner circumferential surface thereof, and spaced apart from the first magnet to face the first magnet, the sleeve supporting the shaft, wherein a spaced gap between the first magnet and the second magnet is filled with oil. According to the present invention, power consumption due to driving of the spindle motor can be reduced by using the bearing assembly included in the magnetic bearing.Type: ApplicationFiled: August 5, 2011Publication date: November 22, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ju Ho Kim, Shin Young Cheong, Ki Suk Woo
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Patent number: 8278786Abstract: A linear vibrator is disclosed. The linear vibrator in accordance with an embodiment of the present invention includes a base, a coil unit, which is coupled to the base, a magnet assembly, which forms a closed circuit of a magnetic force perpendicular to an electric current flowing through the coil unit and in which the magnet assembly relatively moves with respect to the coil unit, and an elastic member, which elastically supports the magnet assembly. Thus, a linear vibrator with an increased driving force can be provided by preventing the leakage of magnetic flux.Type: GrantFiled: April 1, 2010Date of Patent: October 2, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki-Suk Woo, Kyung-Ho Lee, Jun-Kun Choi, Yong-Jin Kim, Hwa-Young Oh, Je-Hyun Bang, Young-Bok Yoon, Suck-Jun Park, Kwang-Hyung Lee
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Patent number: 8258657Abstract: A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a base, a vibrator, which reciprocates in the base, a protruding part, which is formed on at least one of the base and the vibrator, and an elastic body, which is interposed between the base and the vibrator and has a through-part formed therein and in which the protruding part is inserted into the through-part and the elastic body is coupled to the base or the vibrator by caulking or bending the protruding part which is protruded through the through-part. Thus, the vibration motor can have a uniform resonant frequency characteristic since a spring is coupled by way of caulking or bending.Type: GrantFiled: April 14, 2010Date of Patent: September 4, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Yong-Jin Kim, Hwa-Young Oh, Jee-Sung Lee, Seok-Jun Park, Je-Hyun Bang, Kwang-Hyung Lee, Kyoung-Ho Lee, Jun-Kun Choi, Ki-Suk Woo
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Publication number: 20120153775Abstract: Disclosed herein is a piezoelectric actuator. The piezoelectric actuator includes a piezoelectric element generating vibrations by repetitively expanding and restoring according to power applied from the outside to be linearly driven; a support member contacts the piezoelectric element in order to support the piezoelectric element; and vibration control members attached to one surface of and the support member and the piezoelectric element.Type: ApplicationFiled: February 2, 2011Publication date: June 21, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Sun Park, Jae Kung Kim, Yeon Ho Son, Ki Suk Woo, Kum Kyung Lee, Ji Yeoun Jang
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Patent number: 8198769Abstract: The present invention provides a horizontal linear vibrator which can increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The bracket and the casing form the internal space therein. A coil is provided above the bracket such that the center axis thereof is oriented in a horizontal direction. The vibration unit is disposed through the coil and comprises a magnetic field generating unit and a weight. The magnetic field generating unit includes a magnet assembly and a yoke. The magnet assembly has magnets which are provided on opposite sides of a magnetic body core such that the similar magnetic poles of the magnets face each other. The weight is mounted to the magnetic field generating unit. The springs are coupled to the casing or the bracket and elastically support the vibration unit.Type: GrantFiled: October 17, 2009Date of Patent: June 12, 2012Assignee: Samsung Electro-Mechanics, Co., Ltd.Inventors: Hwa Young Oh, Jun Kun Choi, Yong Jin Kim, Kyung Ho Lee, Seok Jun Park, Je Hyun Bang, Kwang Hyung Lee, Ki Suk Woo, Seung Heon Han, Jae Woo Jun
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Publication number: 20120026103Abstract: Disclosed are a vibration generator, which can increase the vibration force of a vibration plate by additionally applying the mass of a mass body to the vibration plate, and an electronic device including the same. The vibration generator includes at least one piezoelectric element mounted inside the case and subjected to compression and expansion in response to input power, a vibration plate including a body elongated in a preset lengthwise direction and having the at least one piezoelectric element mounted thereon, and generating vibrations by the compression and expansion of the at least one piezoelectric element, and at least one mass part adding a preset magnitude of mass to the vibration plate.Type: ApplicationFiled: January 5, 2011Publication date: February 2, 2012Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki Suk Woo, Yeon Ho Son, Jae Kyung Kim, Dong Sun Park, Ji Yeoun Jang, Kum Kyung Lee
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Patent number: 8097988Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase the strength of vibrations while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit, a cylindrical coil and springs. The bracket is coupled to the casing to form an internal space. The vibration unit includes a weight, a pair of yokes and magnets. The weight has an opening therein. The yokes are disposed on the inner surfaces of the weight. The magnets are provided in the yokes such that different poles of the magnets face each other. The cylindrical coil is perpendicularly mounted to the bracket and disposed in space between the pair of yoke. The springs are coupled to both ends of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction.Type: GrantFiled: September 18, 2009Date of Patent: January 17, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Yong Jin Kim, Jun Kun Choi, Jae Woo Jun, Ki Suk Woo, Kwang Hyung Lee, Je Hyun Bang, Seok Jun Park, Kyung Ho Lee, Hwa Young Oh
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Publication number: 20110273405Abstract: Disclosed herein is a touch screen device, including: a case that partitions an internal space, a touch panel module that is received in the case to recognize external pressure, a first actuator that is mounted at the lower part of the touch panel module to generate vibration, a second actuator that is mounted at the case to generate vibration, and a coupling member that is provided between the case and the touch panel module, wherein the vibration direction of the first actuator is different from that of the second actuator.Type: ApplicationFiled: November 5, 2010Publication date: November 10, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Yeon Ho SON, Dae Woong Yun, Ji Yeoun Jang, Ki Suk Woo, Kum Kyung Lee, Dong Sun Park, Jae Kyung Kim, Su Young Jung
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Publication number: 20110260995Abstract: There is provided an actuator module, a haptic feedback device, and an electronic device having the same. The haptic feedback device includes a haptic device receiving a user contact applied thereto, and an actuator module generating vibrations according to the user contact applied to the haptic device.Type: ApplicationFiled: April 21, 2011Publication date: October 27, 2011Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki Suk Woo, Dae Woong Yun, Su Young Jung, Yeon Ho Son, Dong Sun Park, Kum Kyung Lee, Ji Yeoun Jang, Chang Soo Kim, Jae Kyung Kim
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Publication number: 20110260843Abstract: There is provided a lightweight, slim and compact haptic feedback device due to an actuator module constituted of a piezoelectric element and a vibration plate, and an electronic device having the same. The haptic feedback device includes a haptic device receiving contact pressure applied thereto, and an actuator module being in contact with a lower surface of the haptic device and excited according to variations in contact pressure with the haptic device to thereby generate vibrations.Type: ApplicationFiled: November 29, 2010Publication date: October 27, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ki Suk Woo, Dae Woong Yun, Su Young Jung, Yeon Ho Son, Dong Sun Park, Kum Kyung Lee, Ji Yeoun Jang, Chang Soo Kim, Jae Kyung Kim