Patents by Inventor I-Chang Liu

I-Chang Liu 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).

  • Publication number: 20240145596
    Abstract: A device includes a fin extending from a semiconductor substrate; a gate stack over the fin; a first spacer on a sidewall of the gate stack; a source/drain region in the fin adjacent the first spacer; an inter-layer dielectric layer (ILD) extending over the gate stack, the first spacer, and the source/drain region, the ILD having a first portion and a second portion, wherein the second portion of the ILD is closer to the gate stack than the first portion of the ILD; a contact plug extending through the ILD and contacting the source/drain region; a second spacer on a sidewall of the contact plug; and an air gap between the first spacer and the second spacer, wherein the first portion of the ILD extends across the air gap and physically contacts the second spacer, wherein the first portion of the ILD seals the air gap.
    Type: Application
    Filed: January 2, 2024
    Publication date: May 2, 2024
    Inventors: Su-Hao Liu, Kuo-Ju Chen, Kai-Hsuan Lee, I-Hsieh Wong, Cheng-Yu Yang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo, Syun-Ming Jang, Meng-Han Chou
  • Patent number: 11678677
    Abstract: A method for decolorization and deodorization of egg yolk oil comprises at least: adding a first ether solution to a crude egg yolk oil, and performing a first stirring process, to produce a first egg yolk oil mixture; adding activated carbon to the first egg yolk oil mixture, performing a second stirring process, and removing the activated carbon, to produce a second egg yolk oil mixture; adding a second ether solution and distilled water to the second egg yolk oil mixture, and performing a third stirring process, to produce a third egg yolk oil mixture; and removing distilled water, part of the first ether solution, and part of the second ether solution from the third egg yolk oil mixture by a distillation process, and removing the remaining first ether solution and the remaining second ether solution by a vacuum process to produce a decolorized and deodorized egg yolk oil.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: June 20, 2023
    Assignee: TAMKANG UNIVERSITY
    Inventors: Yau-Hung Chen, Ming-Kai Chern, Tung-Han Tsai, I-Chang Liu, Bo-Cheng Wang
  • Patent number: 11516571
    Abstract: A headphone includes two audio output devices and a headband connected between the two audio output devices. The headband includes a rubber block and at least one shape memory alloy wire. The shape memory alloy wire is at least partially embedded in the rubber block. The rubber block has at least one cutout.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: November 29, 2022
    Assignee: MERRY ELECTRONICS CO., LTD.
    Inventors: Chih-Yuan Huang, Yung-Tsung Hsu, I-Chang Liu
  • Publication number: 20220337932
    Abstract: A headphone includes two audio output devices and a headband connected between the two audio output devices. The headband includes a rubber block and at least one shape memory alloy wire. The shape memory alloy wire is at least partially embedded in the rubber block. The rubber block has at least one cutout.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 20, 2022
    Inventors: Chih-Yuan HUANG, Yung-Tsung HSU, I-Chang LIU
  • Publication number: 20220047857
    Abstract: A manufacturing method for a micro-needle device includes following steps: a target tissue basic information obtaining step, a micro-needle template obtaining step, a micro-needle material adding step, a micro-needle semi-product obtaining step, and a micro-needle device obtaining step. The inner tissue distribution information is obtained by the application of optical coherence tomography. The micro-needle template is obtained according to the skin surface curvature information and the inner tissue distribution information. The micro-needle template has a plurality of areas and a plurality of mold holes. One or both of the diameter and the depth of the mold hole is determined by the inner tissue distribution information, and the curvature radius of the areas is determined by the skin surface curvature information. The manufacturing method for a micro-needle device is applicable to micro-needles with mixed configurations as well as micro-needles with syringe configurations.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 17, 2022
    Applicant: Tamkang University
    Inventors: Ming-Kai Chern, Man-Piu Chan, Yueh-Tzu Lo, I-Chang Liu, Shih-Ting Lin, You-Lin Wei, Wen-Chi Chou, Wen-Hua Chuang, Yin-Jun Wu, Hun-Boa Wang, Bo-Cheng Wang
  • Publication number: 20210195910
    Abstract: A method for decolorization and deodorization of egg yolk oil comprises at least: adding a first ether solution to a crude egg yolk oil, and performing a first stirring process, to produce a first egg yolk oil mixture; adding activated carbon to the first egg yolk oil mixture, performing a second stirring process, and removing the activated carbon, to produce a second egg yolk oil mixture; adding a second ether solution and distilled water to the second egg yolk oil mixture, and performing a third stirring process, to produce a third egg yolk oil mixture; and removing distilled water, part of the first ether solution, and part of the second ether solution from the third egg yolk oil mixture by a distillation process, and removing the remaining first ether solution and the remaining second ether solution by a vacuum process to produce a decolorized and deodorized egg yolk oil.
    Type: Application
    Filed: June 11, 2020
    Publication date: July 1, 2021
    Inventors: YAU-HUNG CHEN, MING-KAI CHERN, TUNG-HAN TSAI, I-CHANG LIU, BO-CHENG WANG
  • Patent number: 10349538
    Abstract: A neck strap including at least one flexible circuit board, at least two fixing structures, a positioning element, a protecting layer, and a supporting element is provided. The at least two fixing structures are disposed on two opposite ends of the at least one flexible circuit board and has a housing. The positioning element is disposed in the housing and a through groove is formed between the housing and the positioning element. The protecting layer is at least partially sleeved around the positioning element, the at least one flexible circuit board, and the at least two fixing structures. The supporting element is disposed through the positioning element.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 9, 2019
    Assignee: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Yung-Tsung Hsu, I-Chang Liu, Chien-Min Yao
  • Patent number: 8750800
    Abstract: A Bluetooth device is provided, which comprises a body used for connecting with an earphone; a rotating member, rotating between a first position and a second position relative to the body, so as to control power on or off of the Bluetooth device.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: June 10, 2014
    Assignee: Merry Electronics Co., Ltd.
    Inventors: Cheng-Yu Tsai, Chung-Yi Huang, I-Chang Liu, Chung-Ming Hung
  • Publication number: 20130273852
    Abstract: A Bluetooth device is provided, which comprises a body used for connecting with an earphone; a rotating member, rotating between a first position and a second position relative to the body, so as to control power on or off of the Bluetooth device.
    Type: Application
    Filed: April 17, 2012
    Publication date: October 17, 2013
    Inventors: Cheng-Yu Tsai, Chung-Yi Huang, I-Chang Liu, Chung-Ming Hung
  • Patent number: 5881161
    Abstract: A headphone is composed of a speaker, a microphone, and a flexible earpiece capable of being secured to the external ears of various sizes. The flexible earpiece is formed of a flexible rod which is provided at one end thereof with a female portion and at another end thereof with a male portion engageable with the female portion.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: March 9, 1999
    Assignee: Merry Electronics Co., Ltd.
    Inventor: I-Chang Liu
  • Patent number: D401178
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: November 17, 1998
    Inventor: I-Chang Liu