Patents by Inventor YUN-HSIANG CHANG

YUN-HSIANG CHANG 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: 12301135
    Abstract: A phase and an amplitude improving method includes performing a model establishing step, a phase compensating step, an amplitude compensating step and a compensation information generating step. The model establishing step includes establishing an inverter model. A voltage command is inputted to the inverter model to generate an actual voltage information. The voltage command includes a phase command information and an amplitude command information. The phase compensating step includes computing the phase command information and the actual voltage information to generate a compensating phase information. The amplitude compensating step includes computing the amplitude command information and the actual voltage information to generate a compensating amplitude information. The compensation information generating step includes generating a compensating voltage command. The compensating voltage command is inputted to the inverter model to generate a compensating actual voltage information.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: May 13, 2025
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Tsai Fu Wu, Yun Hsiang Chang, Jui Yang Chiu, Chien-Chih Hung
  • Publication number: 20240283375
    Abstract: A phase and an amplitude improving method includes performing a model establishing step, a phase compensating step, an amplitude compensating step and a compensation information generating step. The model establishing step includes establishing an inverter model. A voltage command is inputted to the inverter model to generate an actual voltage information. The voltage command includes a phase command information and an amplitude command information. The phase compensating step includes computing the phase command information and the actual voltage information to generate a compensating phase information. The amplitude compensating step includes computing the amplitude command information and the actual voltage information to generate a compensating amplitude information. The compensation information generating step includes generating a compensating voltage command. The compensating voltage command is inputted to the inverter model to generate a compensating actual voltage information.
    Type: Application
    Filed: July 26, 2023
    Publication date: August 22, 2024
    Inventors: Tsai Fu WU, Yun Hsiang CHANG, Jui Yang CHIU, Chien-Chih HUNG
  • Publication number: 20220378871
    Abstract: To provide a muscle tissue-regenerating agent containing a fibroin protein. A muscle tissue-regenerating agent containing a modified fibroin protein.
    Type: Application
    Filed: September 30, 2020
    Publication date: December 1, 2022
    Applicants: Spiber Inc., National University Corporation Tokai National Higher Education and Research System
    Inventors: Hiroo Uchida, Hizuru Nagata, Akinari Hinoki, Masataka Fujii, Yun-Hsiang Chang, Satoshi Harada, Takehiro Sato
  • Publication number: 20220332993
    Abstract: An object of the present invention is to provide a protein adhesive containing a protein, a joined body, and a method for producing the same. The protein adhesive of the present invention contains a protein of 50 KDa or less. The joined body of one embodiment is a joined body including a first object, a second object, and an adhesive layer interposed between the first object and the second object, in which the first object and the second object are joined by the adhesive layer, and the adhesive layer is an adhesive layer formed of a protein adhesive containing a protein of 50 KDa or less.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 20, 2022
    Applicant: Spiber Inc.
    Inventor: Yun-Hsiang Chang
  • Patent number: 11212934
    Abstract: A server chassis includes a casing, a first upper cover and a second upper cover. The casing includes a bottom plate and two partition plates respectively located on two opposite sides of the bottom plate so a receiving recess is formed. Each partition plate includes a first engaging groove and a second engaging groove. The first upper cover has two first engaging portions. The second upper cover has two second engaging portions. The first upper cover covers a part of the receiving recess by engaging the first engaging portion with the first engaging groove. The second upper covers another part of the receiving recess by engaging the second engaging portion with the second engaging groove. The first upper cover and the second upper cover can be detached from the first engaging grooves and the second engaging grooves in directions away from each other.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: December 28, 2021
    Assignee: CHENBRO MICOM CO., LTD.
    Inventor: Yun-Hsiang Chang
  • Publication number: 20210102034
    Abstract: A manufacturing method of a continuous transparent polyimide film for a display includes the following steps providing a roll-to-roll polyimide film; providing a polyimide precursor, which is coated on the polyimide film; and baking the polyimide precursor at a baking temperature that is at least 20° C. higher than a glass transition temperature of the transparent polyimide film, such that the transparent polyimide film has an optical transmittance of greater than 85%, a chromaticity (b*) of less than 2, and a standard deviation of three axial refractive indices of the transparent polyimide film is less than 0.0012. Thus, the transparent polyimide film with reduced light leakage can be obtained.
    Type: Application
    Filed: September 2, 2020
    Publication date: April 8, 2021
    Inventors: YI-HSUEH HO, YUN-HSIANG CHANG, YI-CHIA HUANG, PAUL S.C. WU
  • Publication number: 20200375057
    Abstract: A server chassis includes a casing, a first upper cover and a second upper cover. The casing includes a bottom plate and two partition plates respectively located on two opposite sides of the bottom plate so a receiving recess is formed. Each partition plate includes a first engaging groove and a second engaging groove. The first upper cover has two first engaging portions. The second upper cover has two second engaging portions. The first upper cover covers a part of the receiving recess by engaging the first engaging portion with the first engaging groove. The second upper covers another part of the receiving recess by engaging the second engaging portion with the second engaging groove. The first upper cover and the second upper cover can be detached from the first engaging grooves and the second engaging grooves in directions away from each other.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 26, 2020
    Inventor: Yun-Hsiang CHANG
  • Patent number: 10600450
    Abstract: A holder includes a bracket, a first side portion, two second side portions and a third side portion. The bracket includes a support arm and an elastic plate inclinedly connected to the support arm. The first side portion is connected to one end of the support arm, and located at one side of the bracket. The second side portions are respectively connected to two opposite sides of the support arm, and collectively located at the side of the bracket. The third side portion is connected to one end of the elastic plate opposite to the support arm, and located at the same side of the bracket with the second side portions. When the elastic plate is pressed to be flush with the support arm, the bracket, the first side portion, the second side portions and the third side portion collectively form a holding space for holding a loaded object.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: March 24, 2020
    Assignee: CHENBRO MICOM CO., LTD.
    Inventors: Yun-Hsiang Chang, Wei-Ting Lu, Tung-Yang Hu
  • Publication number: 20190325917
    Abstract: A holder includes a bracket, a first side portion, two second side portions and a third side portion. The bracket includes a support arm and an elastic plate inclinedly connected to the support arm. The first side portion is connected to one end of the support arm, and located at one side of the bracket. The second side portions are respectively connected to two opposite sides of the support arm, and collectively located at the side of the bracket. The third side portion is connected to one end of the elastic plate opposite to the support arm, and located at the same side of the bracket with the second side portions. When the elastic plate is pressed to be flush with the support arm, the bracket, the first side portion, the second side portions and the third side portion collectively form a holding space for holding a loaded object.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 24, 2019
    Inventors: Yun-Hsiang CHANG, Wei-Ting LU, Tung-Yang HU
  • Publication number: 20150184422
    Abstract: A lock core structure is revealed herein. It comprises a lock core and a plurality of locking pieces. The lock core has a keyhole for inserting and rotating a key therein and has a plurality of engaging holes arranged at least one row thereon for accommodating the locking pieces, wherein each of the engaging holes communicating with the keyhole is defined by a curved portion and a flat portion including at least one first flat surface, and each of the locking pieces for insertion into the to engaging holes has an E-shaped configuration and includes at least one second flat surface on laterals thereof to prop against the at least one first flat surface of the flat portion of the engaging hole.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 2, 2015
    Inventor: YUN-HSIANG CHANG
  • Publication number: 20140373578
    Abstract: A portable safety device includes a case, a lid and a shackle. The lid has a combination lock and a general lock connected thereto so as to lock the lid to the case. The shackle is removably connected to the case and controlled by either of the combination lock or the general lock. The shackle can position the safety device to an object and small items are stored in the space of the case.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 25, 2014
    Inventor: YUN-HSIANG CHANG