Patents by Inventor Chien-Min Chang

Chien-Min 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).

  • Publication number: 20240087896
    Abstract: Methods of forming line-end extensions and devices having line-end extensions are provided. In some embodiments, a method includes forming a patterned photoresist on a first region of a hard mask layer. A line-end extension region is formed in the hard mask layer. The line-end extension region extends laterally outward from an end of the first region of the hard mask layer. The line-end extension region may be formed by changing a physical property of the hard mask layer at the line-end extension region.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Chih-Min HSIAO, Chien-Wen LAI, Ru-Gun LIU, Chih-Ming LAI, Shih-Ming CHANG, Yung-Sung YEN, Yu-Chen CHANG
  • Publication number: 20180186642
    Abstract: A preparation method of a battery composite material includes steps as follows. A phosphoric acid solution, a zerovalent iron and a catalyst are mixed and undergoing an oxidation reaction to generate a precursor slurry including a compound of formula (1). The precursor slurry, a first component, and a second component are mixed and reacted to generate a resultant. The resultant is powderized. Then powderized resultant is calcined to produce a composite material represented by the following formula (2).
    Type: Application
    Filed: September 26, 2017
    Publication date: July 5, 2018
    Applicant: TATUNG FINE CHEMICALS CO.
    Inventor: Chien-Min Chang
  • Patent number: 9290039
    Abstract: A production method of workpiece is provided. First, an adhesive layer is applied on a workpiece. The adhesive layer is impressed by a mold, so that the adhesive layer forms a three-dimensional pattern. A first curing process with a first irradiating energy is performed on the adhesive layer. The workpiece is punched after the first curing process is performed on the adhesive layer, so that the workpiece forms a three-dimensional workpiece. A second curing process with a second irradiating energy is performed on the adhesive layer after the workpiece is punched, wherein the second irradiating energy intensity is higher than the first irradiating energy intensity.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 22, 2016
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Tsung-Sheng Chuang
  • Patent number: 9242505
    Abstract: A production method of workpiece is provided. First, an adhesive layer is applied on a workpiece, wherein a material of the adhesive layer includes thermosetting resin and radiationcurable resin. The adhesive layer is impressed by a mold, so that the adhesive layer forms a three-dimensional pattern. A first curing process is performed on the adhesive layer by one of radiation-curing and thermal-curing. The workpiece is punched after the first curing process is performed on the adhesive layer, so that the workpiece forms a three-dimensional workpiece. A second curing process is performed on the adhesive layer by another one of radiation-curing and thermal-curing after the workpiece is punched. In addition, a workpiece with three-dimensional pattern is also provided.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: January 26, 2016
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Ju-Chen Chiu, Chih-Hua Liu, Tsung-Sheng Chuang
  • Publication number: 20150020959
    Abstract: A multi-layer 3D pattern manufacturing method includes the steps of forming a color film on a surface of a substrate or a third pattern structure by providing a chromogenic material by lithography, gravure, flexographic printing, screen printing and physical vapor deposition in a transcribed printing process. Using the color film to match with different 3D pattern structures to form a multilayer 3D pattern which can be applied to the housing of various different electronic products not only can improve the aesthetic appearance, it can also enclose the color film within the 3D pattern to prevent the 3D pattern from falling off or fading; thus, the lifetime of the pattern can be improved.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Inventor: CHIEN-MIN CHANG
  • Patent number: 8911581
    Abstract: A composite light guide plate manufacturing method includes the steps of providing a light guide substrate; providing a transfer membrane, which sequentially includes a substrate, a reflective layer and a diffusion microstructure; attaching the transfer membrane to the light guide substrate with a side of the transfer membrane, which has the diffusion microstructure thereon; and removing the substrate to expose the reflective layer.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: December 16, 2014
    Assignee: Compal Electronics, Inc.
    Inventors: Ju-Chen Chiu, Chien-Min Chang, Po-An Lin, Chih-Hua Liu, Hao-Ying Chang
  • Publication number: 20140205699
    Abstract: A production method of three-dimensional pattern is disclosed. First, an adhesive layer is applied on a three-dimensional workpiece. Next, a film is vacuum adsorbed on the adhesive layer so that the film is impressed onto the adhesive layer to form the three-dimensional pattern on the adhesive layer. Finally, the adhesive layer is cured by implementing a plurality of heat treatments thereon. A workpiece of three-dimensional pattern and a production device of three-dimensional pattern are also disclosed.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Chien-Min Chang, Wan-Li Chuang, Jung-Chin Wu
  • Patent number: 8721824
    Abstract: A production method of three-dimensional pattern is disclosed. First, an adhesive layer is applied on a three-dimensional workpiece. Next, a film is vacuum adsorbed on the adhesive layer so that the film is impressed onto the adhesive layer to form the three-dimensional pattern on the adhesive layer. Finally, the adhesive layer is cured by implementing a plurality of heat treatments thereon. A workpiece of three-dimensional pattern and a production device of three-dimensional pattern are also disclosed.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: May 13, 2014
    Assignee: Compal Electronics, Inc.
    Inventors: Chien-Min Chang, Wan-Li Chuang, Jung-Chin Wu
  • Publication number: 20140116607
    Abstract: A composite light guide plate manufacturing method includes the steps of providing a light guide substrate; providing a transfer membrane, which sequentially includes a substrate, a reflective layer and a diffusion microstructure; attaching the transfer membrane to the light guide substrate with a side of the transfer membrane, which has the diffusion microstructure thereon; and removing the substrate to expose the reflective layer.
    Type: Application
    Filed: June 11, 2013
    Publication date: May 1, 2014
    Inventors: Ju-Chen CHIU, Chien-Min CHANG, Po-An LIN, Chih-Hua LIU, Hao-Ying CHANG
  • Patent number: 8684579
    Abstract: An electronic device includes a display module, a base and a keyboard module. The display module is pivoted on the base. The keyboard module is disposed on the base. The keyboard module has a plurality of keys. Each of the keys includes a main body and an imprinted structure. The main body has a top surface. The imprinted structure is disposed on the top surface of the main body and includes a light guiding portion and a light scattering portion. A light emitted by the display module illuminates the keyboard module. The light is guided towards a specific direction when the light passes through the light guiding portion, and the light is scattered in other directions when the light passes through the light scattering portion.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: April 1, 2014
    Assignee: Compal Electronics, Inc.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Li-Jung Yu, Mei-Hsiung Tsai, Yung-Ching Chang, Ju-Chen Chiu
  • Patent number: 8580485
    Abstract: A method for forming a three-dimensional pattern includes following steps. A shaped workpiece having an inner surface and an outer surface is provided, and a first photoresist layer and a second photoresist layer are respectively formed on the outer surface and the inner surface. The shaped workpiece is placed on a transparent fixture. The first photoresist layer and the second photoresist layer are exposed and developed, such that the first photoresist layer forms a patterned photoresist layer, and the second photoresist layer forms an etching protection layer. The shaped workpiece is etched to form the three-dimensional pattern on the outer surface of the shaped workpiece. The patterned photoresist layer and the etching protection layer are removed.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: November 12, 2013
    Assignee: Compal Electronics, Inc.
    Inventors: Chien-Min Chang, Jung-Chin Wu, Wan-Li Chuang
  • Patent number: 8574702
    Abstract: A shell structure includes a composite material layer and a second material layer is provided. The composite material layer includes a woven layer and a first material layer. The woven layer has a first surface and a second surface opposite to each other. The first material layer is located on the first surface and has a plurality of through-holes. The second material layer is disposed on the first material layer and has a plurality of extending-portions adapted to be combined with the woven layer and fix the second material layer and the composite material layer to each other. In addition, a manufacturing method for shell structure of electronic device is also provided.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 5, 2013
    Assignee: Compal Electronics, Inc.
    Inventors: Jung-Chin Wu, Po-An Lin, Kuo-Nan Ling, Han-Ching Huang, Chih-Wen Chiang, Chien-Min Chang
  • Publication number: 20130265799
    Abstract: An electronic device includes a display module, a base and a keyboard module. The display module is pivoted on the base. The keyboard module is disposed on the base. The keyboard module has a plurality of keys. Each of the keys includes a main body and an imprinted structure. The main body has a top surface. The imprinted structure is disposed on the top surface of the main body and includes a light guiding portion and a light scattering portion. A light emitted by the display module illuminates the keyboard module. The light is guided towards a specific direction when the light passes through the light guiding portion, and the light is scattered in other directions when the light passes through the light scattering portion.
    Type: Application
    Filed: May 22, 2012
    Publication date: October 10, 2013
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Li-Jung Yu, Mei-Hsiung Tsai, Yung-Ching Chang, Ju-Chen Chiu
  • Publication number: 20120164360
    Abstract: A shell structure includes a composite material layer and a second material layer is provided. The composite material layer includes a woven layer and a first material layer. The woven layer has a first surface and a second surface opposite to each other. The first material layer is located on the first surface and has a plurality of through-holes. The second material layer is disposed on the first material layer and has a plurality of extending-portions adapted to be combined with the woven layer and fix the second material layer and the composite material layer to each other. In addition, a manufacturing method for shell structure of electronic device is also provided.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Jung-Chin Wu, Po-An Lin, Kuo-Nan Ling, Han-Ching Huang, Chih-Wen Chiang, Chien-Min Chang
  • Publication number: 20120088074
    Abstract: A workpiece with three-dimensional pattern having a three-dimensional surface and suitable for an electronic device is provided. A multiple three-dimensional micro patterns formed on the three-dimensional surface reflects an environment light to form images with a visual effect. The workpiece with three-dimensional pattern includes a workpiece and an adhesive layer. The adhesive layer is disposed on the workpiece and impressed to form the multiple three-dimensional micro patterns, and the workpiece is punched to form the three-dimensional surface. A first part of the multiple three-dimensional micro patterns on the three-dimensional surface reflects the environment light to form a first reflecting light beam. A second part of the multiple three-dimensional micro patterns on the three-dimensional surface reflects the environment light to form a second reflecting light beam.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Li-Jung Yu, Yung-Ching Chang, Ying-Ching Chen, Tsung-Sheng Chuang
  • Publication number: 20120070631
    Abstract: A production method of workpiece is provided. First, an adhesive layer is applied on a workpiece. The adhesive layer is impressed by a mold, so that the adhesive layer forms a three-dimensional pattern. A first curing process with a first irradiating energy is performed on the adhesive layer. The workpiece is punched after the first curing process is performed on the adhesive layer, so that the workpiece forms a three-dimensional workpiece. A second curing process with a second irradiating energy is performed on the adhesive layer after the workpiece is punched, wherein the second irradiating energy intensity is higher than the first irradiating energy intensity.
    Type: Application
    Filed: November 24, 2011
    Publication date: March 22, 2012
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Tsung-Sheng Chuang
  • Publication number: 20120070639
    Abstract: A production method of workpiece is provided. First, an adhesive layer is applied on a workpiece, wherein a material of the adhesive layer includes thermosetting resin and radiationcurable resin. The adhesive layer is impressed by a mold, so that the adhesive layer forms a three-dimensional pattern. A first curing process is performed on the adhesive layer by one of radiation-curing and thermal-curing. The workpiece is punched after the first curing process is performed on the adhesive layer, so that the workpiece forms a three-dimensional workpiece. A second curing process is performed on the adhesive layer by another one of radiation-curing and thermal-curing after the workpiece is punched. In addition, a workpiece with three-dimensional pattern is also provided.
    Type: Application
    Filed: November 24, 2011
    Publication date: March 22, 2012
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Wan-Li Chuang, Chien-Min Chang, Ju-Chen Chiu, Chih-Hua Liu, Tsung-Sheng Chuang
  • Publication number: 20110183270
    Abstract: A method for forming a three-dimensional pattern includes following steps. A shaped workpiece having an inner surface and an outer surface is provided, and a first photoresist layer and a second photoresist layer are respectively formed on the outer surface and the inner surface. The shaped workpiece is placed on a transparent fixture. The first photoresist layer and the second photoresist layer are exposed and developed, such that the first photoresist layer forms a patterned photoresist layer, and the second photoresist layer forms an etching protection layer. The shaped workpiece is etched to form the three-dimensional pattern on the outer surface of the shaped workpiece. The patterned photoresist layer and the etching protection layer are removed.
    Type: Application
    Filed: November 12, 2010
    Publication date: July 28, 2011
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Chien-Min Chang, Jung-Chin Wu, Wan-Li Chuang
  • Publication number: 20110070500
    Abstract: An electrode material includes a particle-shaped crystalline metal oxide and further includes a particle-shaped amorphous metal oxide that is porous with a pore volume greater than or equal to 0.5 cm3/g. The electrode material can be formed and applied in the context of a lithium secondary battery.
    Type: Application
    Filed: March 19, 2010
    Publication date: March 24, 2011
    Applicant: Chung Yuan Christian University
    Inventors: Yui-Whei Chen, Po-Chun Chuang, Chien-Min Chang
  • Publication number: 20110061798
    Abstract: A production method of a three-dimensional pattern is disclosed. First, an adhesive layer is applied on a three-dimensional workpiece. Next, a film is vacuum adsorbed on the adhesive layer so that the film is impressed onto the adhesive layer to form the three-dimensional pattern on the adhesive layer. Finally, the adhesive layer is cured.
    Type: Application
    Filed: April 12, 2010
    Publication date: March 17, 2011
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Chien-Min Chang, Wan-Li Chuang, Jung-Chin Wu