Patents by Inventor Che-An Wu

Che-An Wu 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).

  • Scroll mouse with plurality of weighting elements
    Patent number: 10599238
    Abstract: A scroll mouse includes a casing and a scroll wheel module. The casing includes an opening. The scroll wheel module is disposed within the casing, penetrated through the opening, and partially exposed outside the casing. The scroll wheel includes a wheel body and plural weighing elements. The wheel body is disposed within the casing and rotatable relative to the casing. The wheel body includes plural receiving recesses. The plural receiving recesses are formed in the wheel body. The plural weighing elements correspond to the plural receiving recesses. The plural weighing elements are received within the corresponding receiving recesses to increase a weight of the wheel body. A material density of each weighing element is larger than a material density of the wheel body.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 24, 2020
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventor: Chun-Che Wu
  • System and method for providing power surge protection in a power supply unit for an information handling system
    Patent number: 10601306
    Abstract: A power supply unit for an information handling system, including a filter module configured to filter an AC voltage signal; a rectifier module to rectify the filtered AC voltage signal to generate a DC voltage signal, the DC voltage signal proportional to the AC voltage signal; a voltage regulator module configured to determine that the DC voltage signal is above a threshold voltage level, and in response, clamp the DC voltage signal such that the clamped DC voltage signal i) is not proportional to the AC voltage signal and ii) is less than the threshold voltage level; a capacitor module to average peaks voltages of the clamped DC voltage signal; and a DC/DC converter to convert the averaged DC voltage signal to a converted DC voltage signal, the converted DC voltage signal having a desired DC voltage level.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: March 24, 2020
    Assignee: Dell Products L.P.
    Inventors: Wei Cheng Yu, Merle Jackson Wood, III, Chung-Cheng Liao, Chi Che Wu
  • MOUSE DEVICE
    Publication number: 20200081558
    Abstract: A mouse device includes a button, a switch, a linkage element, a plate body, a supporting element and an adjusting element. A triggering part of the plate body is arranged between the linkage element and the switch. When the adjusting element is moved, the supporting element is correspondingly moved. Consequently, the supporting element is selectively contacted with the first fulcrum or the second fulcrum. While the button is pressed down and the linkage element is moved downwardly toward the triggering part, the triggering part is swung around a first fulcrum or a second fulcrum of the plate body to push the switch. Consequently, the switch is triggered.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 12, 2020
    Inventors: Chun-Lin Chu, Chun-Che Wu
  • Mouse with low friction roller module
    Patent number: 10585501
    Abstract: The present invention provides a mouse with a low friction roller module, including a mouse body and a low friction roller module; the low friction roller module is mounted in the mouse body and includes a support, a roller, a low friction bearing, a support shaft, and an encoding component; a mounting portion is provided in the roller; the low friction bearing is fastened in the mounting portion; one side of the support shaft passes through and is connected to the low friction bearing, and the other side of the support shaft passes through and is connected to the support; and the encoding component is connected to the roller. In this way, rolling friction force is reduced.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 10, 2020
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Yung-Ming Tsai, Chun-Che Wu, Chun-Nan Su
  • PROJECTION LENS STRUCTURE
    Publication number: 20200073216
    Abstract: A projection lens structure includes a first group of lens, an aperture stop and a second group of lend. The aperture stop is arranged at a rear of the first group of lens to form a long-focus lens with a focal length between 30-80 mm and the second group of lens is arranged at a rear of the aperture stop to form a short-focus lens with a focal length between 20-30 mm. With the long-focus lens and the short-focus lens operated correspondingly, the structure of the projection lens is simple and the manufacturing cost is low without affecting the quality of produced images.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 5, 2020
    Inventors: SHENG-CHE WU, YU-HUNG CHOU, YOU-DA CHEN
  • Electronic module having electromagnetic shielding structure and manufacturing method thereof
    Patent number: 10531558
    Abstract: An electronic module having an electromagnetic shielding structure and its manufacturing method are provided. At first, a first substrate and a second substrate are separately provided. At least one electronic element and at least one connection pad are formed on a surface of the first substrate. The second substrate includes a conductive film and at least one conductive bump is formed on a surface of the conductive film. The first substrate and the second substrate are laminated together wherein the conductive bump is aligned with and connected to the connection pad to obtain the electronic module.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: January 7, 2020
    Assignee: CYNTEC CO., LTD.
    Inventor: Ming-Che Wu
  • Projection system
    Patent number: 10520709
    Abstract: A projection system includes a long-focus lens that is able to generate an image independently with a focal length between 70-300 mm, a short-focus lens that is able to generate an image independently with a focal length between 3-8 mm and shares an optical axis with the long-focus lens and at least one reflector to reflect the optical axis for direction change. When the long-focus lens generates an image, the short-focus lens then generates the image to a pre-determined position thereby.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: December 31, 2019
    Assignees: Sun Yang Optics Development Co., Ltd., Shenzhen Anhua Optoelectronics Technology Co., Ltd.
    Inventors: Sheng-Che Wu, Yu-Hung Chou, Wei-Hao Huang
  • LIGHT EMITTING CHIP AND ASSOCIATED PACKAGE STRUCTURE
    Publication number: 20190355888
    Abstract: A light emitting chip and associated package structure are provided. The light emitting chip includes a substrate, a first type layer, an active layer, a second type layer, a first type electrode and a second type electrode. A second portion of the first type layer is located over the substrate. A first portion of the first type layer is located over the second portion of the first type layer. The active layer is located over the first portion of the first type layer. The second type layer is located over the active layer. The first type electrode is contacted with a sidewall of the second portion of the first type layer and contacted with a sidewall of the substrate. The second type electrode is contacted with the second type layer.
    Type: Application
    Filed: December 17, 2018
    Publication date: November 21, 2019
    Inventors: Chang-Da TSAI, Wei-Che WU, Kuan-Kai HUANG
  • Power supply light load efficiency control circuit
    Patent number: 10461654
    Abstract: A system and method of operating an a power supply unit with a light load efficiency control system comprising a power regulator circuit for receiving an alternating current (AC) input voltage from within a range of accommodated AC input voltages and including a power factor correction (PFC) circuit and an LLC resonator circuit having a bulk capacitance voltage level and operable to receive the input AC voltage in the power supply unit and where the power supply unit generates a direct current (DC) output voltage for use by a load.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: October 29, 2019
    Assignee: Dell Products, LP
    Inventors: Chi-Che Wu, Wei-Cheng Yu, Yung Chang Chang, Ya-Tang Hsieh
  • Personalized trending image search suggestion
    Patent number: 10459964
    Abstract: Techniques and constructs to facilitate suggestion of image-based search queries can provide personalized trending image search queries. The constructs may enable identification of trending image searches and further personalize those trending image search queries for an identified user based on information about on the user's search history and the search histories of other users. The constructs also may select a representative image for display to the user, such that selection of the representative image will execute the search query. The representative image may be selected from a plurality of candidate images based on its burstiness.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: October 29, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tao Mei, Yan-Feng Sun, Yong Rui, Chun-Che Wu
  • Mouse with electromagnetic module
    Patent number: 10444872
    Abstract: The present invention provides a mouse with an electromagnetic module, including: a mouse body, a scroll wheel and an electromagnetic module. The scroll wheel is mounted in the mouse body, and the scroll wheel is provided with a mounting area. The electromagnetic module is mounted in the mouse body. The electromagnetic module includes: a metal inner ratchet, a connecting piece, an electromagnet, and a control element. The metal inner ratchet is fastened in the mounting area. The connecting piece includes a connecting section and a free section. The connecting section is connected to the mouse body, and the free section passes through the mounting area. The electromagnet is mounted on the free section. The control element is electrically connected to the electromagnet. In this way, an effect of continuous-ratcheting is achieved.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: October 15, 2019
    Assignee: PRIMAX ELECTRONICS LTD
    Inventors: Tsung-Wen Hsueh, Chun-Nan Su, Chun-Che Wu
  • METHODS OF FORMING SEMICONDUCTOR DEVICES
    Publication number: 20190304795
    Abstract: A method of forming semiconductor devices includes providing a substrate with a patterned material layer formed thereon, forming a material layer on the patterned material layer, wherein the material layer has a first region with a lower top surface and a second region with a higher top surface, forming a flowable material layer on the material layer, wherein the flowable material layer exposes at least a portion of the second region of the material layer, removing the exposed portion of the second region of the material layer with the flowable material layer as a stop layer, removing the flowable material layer, and planarizing the material layer.
    Type: Application
    Filed: October 31, 2018
    Publication date: October 3, 2019
    Inventors: Kun-Che WU, Kao-Tsair TSAI
  • Mouse with soundless scroll wheel module
    Patent number: 10409397
    Abstract: The present invention provides a mouse with a soundless scroll wheel module, including a mouse body and a soundless scroll wheel module. The soundless scroll wheel module includes a supporting frame, a scroll wheel body, a mute inner ratchet wheel, a strut, an elastic component, and an encoding component. The mute inner ratchet wheel is installed in the scroll wheel body. The strut includes an engagement segment and the engagement segment is engaged with the mute inner ratchet wheel. The mute inner ratchet wheel comprises a flexible annular body and multiple flexible ratchets for reducing rolling noise.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: September 10, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Yung-Ming Tsai, Chun-Che Wu, Chun-Nan Su
  • Mouse device with button feedback mechanism
    Patent number: 10401980
    Abstract: A mouse device with a button feedback mechanism is provided. The mouse device includes a mouse body and a button module. The mouse body includes an upper case, a lower case and a hollow cylinder. The button module includes a button, an elastic element, an attracting element and a suspension arm. The elastic element is disposed within the hollow cylinder and located under the pressing part. The button is contacted with the elastic element. The attracting element is installed on the upper case. The suspension arm includes a connection segment and a free segment. The connection segment is penetrated through the hollow cylinder and connected with the elastic element. The free segment is located under the attracting element. Consequently, the mouse device provides the sound feedback and the touch feedback.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: September 3, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Yung-Ming Tsai, Chun-Che Wu, Yi-Te Chou, Chung-Yuan Chen
  • Resistive memory device containing carbon barrier and method of making thereof
    Patent number: 10340449
    Abstract: A resistive memory device, such as a BMC ReRAM device, includes at least one resistive memory element which contains a carbon barrier material portion and a resistive memory material portion that is disposed between a first electrode and a second electrode.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: July 2, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Ming-Che Wu, Alvaro Padilla, Tanmay Kumar
  • Mouse device
    Patent number: 10310633
    Abstract: A mouse device includes a casing, a top cover, an adjusting module and a pressing part. The casing is covered by the top cover. The top cover is movable relative to the casing. The top cover includes a saw-toothed plate. The saw-toothed plate is inserted into an inner portion of the casing and contacted with the adjusting module. The pressing part is connected with the adjusting module. When the pressing part is pressed to trigger the adjusting module, the saw-toothed plate is pushed by the adjusting module and the top cover is moved form a first position to a second position. Consequently, a shape of the mouse device is changed. The shape of the mouse device is changeable according to the size of the user's palm.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 4, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: A-Ming Chang, Chun-Che Wu, Cheng-Chi Hsu, Hung-Bin Wu, Yung-Ming Tsai
  • MOUSE DEVICE WITH BUTTON FEEDBACK MECHANISM
    Publication number: 20190146600
    Abstract: A mouse device with a button feedback mechanism is provided. The mouse device includes a mouse body and a button module. The mouse body includes an upper case, a lower case and a hollow cylinder. The button module includes a button, an elastic element, an attracting element and a suspension arm. The elastic element is disposed within the hollow cylinder and located under the pressing part. The button is contacted with the elastic element. The attracting element is installed on the upper case. The suspension arm includes a connection segment and a free segment. The connection segment is penetrated through the hollow cylinder and connected with the elastic element. The free segment is located under the attracting element. Consequently, the mouse device provides the sound feedback and the touch feedback.
    Type: Application
    Filed: February 27, 2018
    Publication date: May 16, 2019
    Inventors: Yung-Ming Tsai, Chun-Che Wu, Yi-Te Chou, Chung-Yuan Chen
  • Methods and apparatus for three-dimensional nonvolatile memory
    Patent number: 10283567
    Abstract: A method is provided that includes forming a word line above a substrate, the word line disposed in a first direction, forming a bit line above the substrate, the bit line disposed in a second direction perpendicular to the first direction, forming a nonvolatile memory material between the word line and the bit line, the nonvolatile memory material including a semiconductor material layer and conductive oxide material layer, forming a first barrier material layer between the word line and the nonvolatile memory material, forming a second barrier material layer between the bit line and the nonvolatile memory material, and forming a memory cell including the nonvolatile memory material at an intersection of the bit line and the word line.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 7, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Juan Saenz, Deepak Kamalanathan, Guangle Zhou, Ming-Che Wu, Tanmay Kumar
  • Methods and apparatus for three-dimensional nonvolatile memory
    Patent number: 10283708
    Abstract: A method is provided that includes forming a word line above a substrate, the word line disposed in a first direction, forming a bit line above the substrate, the bit line disposed in a second direction perpendicular to the first direction, forming a nonvolatile memory material between the word line and the bit line, and forming a memory cell including the nonvolatile memory material at an intersection of the bit line and the word line. The word line includes a first portion and a second portion including an electrically conductive carbon-containing material. The nonvolatile memory material includes a semiconductor material layer and a conductive oxide material layer, with the semiconductor material layer disposed adjacent the second portion of the word line.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: May 7, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Ming-Che Wu, Deepak Kamalanathan, Juan Saenz, Tanmay Kumar
  • MINIMALLY INVASIVE SURGICAL INSTRUMENTS WITH TERMINAL STEERABLE MECHANISM
    Publication number: 20190125469
    Abstract: The present invention provides a minimally invasive surgical instrument with a terminal steerable mechanism, comprising an intervention device, a control device and one or more wires. The strip-shaped intervention device sequentially includes a main section, a flexible section and an operation section from the top to the end. The control device includes a sphere with a preset rotational degree of freedom, and an operating lever connected to the sphere. Said one or more wires are extended along the main section of the intervention device. Here, the second ends of said at least one or more wires are connected to the flexible section or the operation section of the intervention device, and the first ends thereof are connected to at least a part of the control device.
    Type: Application
    Filed: May 15, 2018
    Publication date: May 2, 2019
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Bing-Shiang Yang, Chao-Che Wu