Patents by Inventor Hwa Sun Lee

Hwa Sun Lee 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).

  • ACOUSTIC RESONATOR AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20170179923
    Abstract: An acoustic resonator and a method of manufacturing the same are provided. The acoustic resonator includes a resonating part including a first electrode, a second electrode, and a piezoelectric layer; and a plurality of seed layers disposed on one side of the resonating part.
    Type: Application
    Filed: March 30, 2016
    Publication date: June 22, 2017
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ran Hee SHIN, Tae Kyung LEE, Sung HAN, Yun Sung KANG, Sung Sun KIM, Jin Suk SON, Jeong Suong YANG, Hwa Sun LEE, Eun Tae PARK
  • LENS DRIVING DEVICE
    Publication number: 20170023763
    Abstract: A lens driving device includes a fixed member, a movable member configured to move with respect to the fixed member, a lens disposed in or on the moveable member, a connection member connecting the fixed member to the movable member, and a protective member disposed on a connection portion. The connection portion is between the fixed member and the connection member or between the movable member and the connection member.
    Type: Application
    Filed: February 18, 2016
    Publication date: January 26, 2017
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Hwa Sun LEE, Jong Beom KIM, Kyo Yeol LEE, Sung Sun KIM
  • BULK ACOUSTIC WAVE RESONATOR AND FILTER INCLUDING THE SAME
    Publication number: 20160373083
    Abstract: A bulk acoustic wave resonator includes a substrate, a first electrode and a second electrode disposed on the substrate, and a piezoelectric layer disposed between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an alloy of molybdenum and tantalum.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Sung HAN, Hwa Sun LEE, Seung Joo SHIN, Ran Hee SHIN
  • BULK ACOUSTIC WAVE RESONATOR AND FILTER INCLUDING THE SAME
    Publication number: 20160300996
    Abstract: In examples, there is provided a bulk acoustic wave resonator including: a substrate, a first electrode and a second electrode formed on the substrate, and a piezoelectric layer formed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode is formed of an alloy including a molybdenum element. Additionally, such a bulk acoustic wave resonator may include an air cavity formed between the substrate and the first electrode.
    Type: Application
    Filed: January 21, 2016
    Publication date: October 13, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Sung HAN, Ran Hee SHIN, Hwa Sun LEE, Seung Joo SHIN
  • ACOUSTIC TRANSDUCER
    Publication number: 20160066097
    Abstract: An acoustic transducer includes a substrate member including a first region having one or more first holes formed therein, and a second region, a vibration member including a third region facing the first region and a fourth region facing the second region and having one or more second holes formed therein, and a support member extended from a boundary region between the first region and the second region to a boundary region between the third region and the fourth region to allow the substrate member and the vibration member to be spaced apart from each other by a predetermined interval.
    Type: Application
    Filed: February 20, 2015
    Publication date: March 3, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hwa Sun LEE, Jae Chang LEE, Byung Hun KIM
  • ACOUSTIC TRANSDUCER
    Publication number: 20160066096
    Abstract: An acoustic transducer includes a substrate member provided with a plurality of holes formed therein through which sound waves are input, a vibration member including a first region and a second region provided at an edge of the first region and disposed to be parallel to the substrate member while having an interval therebetween, and a plurality of support members disposed along the edge of the first region.
    Type: Application
    Filed: March 12, 2015
    Publication date: March 3, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hwa Sun LEE, Jae Chang LEE, Jong Beom KIM, Byung Hun KIM
  • ACTUATOR UNIT AND LENS MODULE
    Publication number: 20160011393
    Abstract: An actuator unit includes a driving part connecting a fixing part and a support part which are disposed to be substantially coplanar; an actuator which is configured to deform the driving part to drive the support part out of the coplanar relationship with respect to the fixing part; and a sensor which is configured to measure a displacement amount or deformation of the driving part.
    Type: Application
    Filed: May 27, 2015
    Publication date: January 14, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Beom KIM, June Kyoo LEE, Hyung Jae PARK, Sang Jin KIM, Jung Won LEE, Hwa Sun LEE, Dong Hyun PARK
  • MICROPHONE
    Publication number: 20150382091
    Abstract: There is provided a microphone including: a diaphragm; a support part supporting diaphragm; and a connection part connecting the diaphragm to the support part so that the diaphragm is displaceable, wherein a slit is formed in the connection part, and the slit includes a plurality of slit parts extended in different directions from each other.
    Type: Application
    Filed: May 20, 2015
    Publication date: December 31, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Hun KIM, Hwa Sun LEE
  • PIEZOELECTRIC ACTUATOR
    Publication number: 20150145380
    Abstract: There is provided a piezoelectric actuator including: a piezoelectric member having a multilayer structure; an external electrode formed on an outer surface of the piezoelectric member; and an intermediate electrode formed between layers of the piezoelectric members and having an area smaller than that of the external electrode.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 28, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Byung Hun Kim, Hwa Sun Lee, Jae Chang Lee, Seung Mo Lim
  • Piezo actuator and inkjet print head assembly having the same
    Patent number: 9033472
    Abstract: A piezoelectric actuator includes upper and lower electrodes providing driving voltages and a piezoelectric film formed between the upper and lower electrodes and providing a driving force to ink in a plurality of pressure chambers formed on an inkjet print head, respectively. The piezoelectric film may include a plurality of basin parts individually formed on respective tops of the plurality of pressure chambers and a large-area part connected to the plurality of basin parts, respectively, at one end of the plurality of basin parts and formed as a single body. The large-area part may include a groove formed on an extended line of a basin line partitioning the basin parts.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung Lee, Jae Chang Lee, Hwa Sun Lee
  • MICROPHONE
    Publication number: 20150092964
    Abstract: Disclosed herein is a microphone including: a membrane; a fixed electrode part positioned at the outside of the membrane; and an elastic support part connecting the membrane and the fixed electrode part to each other so as to enable displacement of the membrane, wherein one surface of the membrane and one surface of the fixed electrode part facing each other are formed with conductive parts, respectively.
    Type: Application
    Filed: August 11, 2014
    Publication date: April 2, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Hun Kim, Hwa Sun Lee
  • PIEZOELECTRIC ACTUATOR MODULE, METHOD OF MANUFACTURING THE SAME, AND MEMS SENSOR HAVING THE SAME
    Publication number: 20150082884
    Abstract: An actuator includes a multi-layer part having a multilayered piezoelectric part comprising a plurality of piezoelectric bodies and an electrode part connected to the multilayered piezoelectric part, and a support part displaceably supporting the multi-layer part. The multilayered piezoelectric part is polled in the same direction. One of the piezoelectric bodies expands or contracts in an opposite direction to another piezoelectric body.
    Type: Application
    Filed: June 30, 2014
    Publication date: March 26, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seung Mo LIM, Yun Sung KANG, In Young KANG, Jeong Suong YANG, Hwa Sun LEE
  • MICROPHONE
    Publication number: 20150076629
    Abstract: There is provided a microphone including: a thin film member including leg members extended in a direction not in parallel with a vibration direction; first supports supporting first points of the leg members, respectively; and a piezoelectric member connected to second points of the leg members and converting vibrations of the thin film member into electrical signals.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 19, 2015
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hwa Sun LEE, Byung Hun Kim, Yoon Sok Park
  • Inkjet print head
    Patent number: 8944566
    Abstract: There is provided an inkjet print head including: an ink discharging unit including a plurality of actuators; a connection substrate disposed on the ink discharging unit and having a first circuit pattern electrically connected to the plurality of actuators; and a switching board having a second circuit pattern connected to the first circuit pattern and including a plurality of driving integrated chips (ICs) controlling the plurality of actuators.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: February 3, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Pil Joong Kang, Yoon Sok Park, Hwa Sun Lee, Seung Joo Shin
  • Inkjet print head and method of manufacturing the same
    Patent number: 8919924
    Abstract: Disclosed are an inkjet print head and a method of manufacturing the same. An inkjet print head according to an aspect of the invention may include: an inkjet board having an ink passage therein; a cutting portion provided outside the ink passage of the inkjet board and having a cutting surface created by separation into head chip units of the inkjet board; and an auxiliary cutting portion provided from one surface of the cutting portion inwardly in a thickness direction of the inkjet board, and assisting the separation into head chip units of the inkjet board.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: December 30, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung Lee, Jae Chang Lee, Hwa Sun Lee
  • INKJET PRINT HEAD
    Publication number: 20140320568
    Abstract: There is provided an inkjet print head including a substrate member including an ink channel, a piezoelectric actuator formed on the substrate member, and a coating member formed on the piezoelectric actuator and including a photosensitive material.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 30, 2014
    Inventors: Tae Kyung LEE, Byung Hun KIM, Hwa Sun LEE
  • Method of forming a piezoelectric actuator of an inkjet head
    Patent number: 8806727
    Abstract: A method of forming a piezoelectric actuator on a vibration plate to provide a driving force to each of a plurality of pressure chambers includes forming a lower electrode on the vibration plate, forming a piezoelectric layer on the lower electrode at a position corresponding to each of the pressure chambers, forming a supporting pad on the lower electrode, the supporting pad contacting one end of the piezoelectric layer and extending away from the one end of the piezoelectric layer, forming an upper electrode extending from a top surface of the piezoelectric layer to a top surface of the supporting pad, and bonding the upper electrode to a driving circuit above the supporting pad to receive a voltage from the driving circuit.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 19, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae-kyung Lee, Jae-woo Chung, Kyo-yeol Lee, Hwa-sun Lee, Seung-mo Lim, Jae-chang Lee
  • POLING METHOD, POLING DEVICE FOR PIEZOELECTRIC ELEMENT AND INKJET PRINT HEAD
    Publication number: 20140225962
    Abstract: There is provided a poling method for a piezoelectric element, including performing preliminary poling of the piezoelectric element twice or more with different voltages and measuring conductance of the piezoelectric element with regard to respective voltage, establishing a relational expression between the voltage and the conductance of the piezoelectric element, calculating targeted conductance required to exhibit a targeted piezoelectric characteristic of the piezoelectric element, and selecting a targeted voltage level corresponding to the targeted conductance and performing final poling of the piezoelectric element at the targeted voltage level.
    Type: Application
    Filed: April 10, 2013
    Publication date: August 14, 2014
    Applicant: Samsung Electro-Mechanics Co., LTD.
    Inventors: Tae Kyung LEE, Jae Chang Lee, Hwa Sun Lee
  • Piezoelectric actuator, inkjet head assembly and method of manufacturing the same
    Patent number: 8777378
    Abstract: There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: July 15, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung Lee, Pil Joong Kang, Hwa Sun Lee
  • PIEZOELECTRIC ACTUATOR, INKJET PRINT HEAD ASSEMBLY, AND METHOD OF MANUFACTURING THE PIEZOELECTRIC ACTUATOR AND THE INKJET PRINT HEAD ASSEMBLY
    Publication number: 20140176645
    Abstract: A piezoelectric actuator includes upper and lower electrodes providing driving voltages and a piezoelectric film formed between the upper and lower electrodes and providing a driving force to ink in a plurality of pressure chambers formed on an inkjet print head, respectively. The piezoelectric film may include a plurality of basin parts individually formed on respective tops of the plurality of pressure chambers and a large-area part connected to the plurality of basin parts, respectively, at one ends of the plurality of basin parts and formed as a single body. The large-area part may include an etching groove formed on an extended line of a basin line partitioning the basin parts.
    Type: Application
    Filed: March 7, 2013
    Publication date: June 26, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Jae Chang Lee, Hwa Sun Lee