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Taichung City, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device structure and method for forming the same
Patent number
9,865,697
Issue date
Jan 9, 2018
Taiwan Semiconductor Manufacturing Co., Ltd
Jen-Chih Hsueh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Contact plug and method for manufacturing the same
Patent number
9,263,281
Issue date
Feb 16, 2016
Vanguard International Semiconductor Corporation
Yi-Tsung Jan
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Intelligent bias voltage generating circuit
Patent number
5,892,394
Issue date
Apr 6, 1999
Holtek Microelectronics Inc.
Rong-Tyan Wu
G05 - CONTROLLING REGULATING
Information
Patent Grant
Adjustable-period dual-tone multifrequency generator
Patent number
5,889,853
Issue date
Mar 30, 1999
Holtek Microelectronics Inc.
Rong-Tyan Wu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Methods and devices for generating cycled waveforms of nonsingle pe...
Patent number
5,883,530
Issue date
Mar 16, 1999
Holtek Microelectronics Inc.
Rong-Tyan Wu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Cycle-modulating type of dual-tone multifrequency generator
Patent number
5,859,905
Issue date
Jan 12, 1999
Holtek Microelectronics,Inc.
Rong-Tyan Wu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multi-function telephone dialer display
Patent number
5,835,581
Issue date
Nov 10, 1998
Holtek Microelectronics, Inc.
Rong-Tyan Wu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Display control device allowing information transmission to both di...
Patent number
5,825,859
Issue date
Oct 20, 1998
Holtek Micro Electronics, Inc.
Chi-Yung Wu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Monitor-controlling device
Patent number
5,805,693
Issue date
Sep 8, 1998
Holtek Microelectronics, Inc.
Chern-Jsair Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Level-shift type digital to analog converter
Patent number
5,745,065
Issue date
Apr 28, 1998
Holtek Microelectronics, Inc.
Rong-Tyan Wu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Waveform-generating apparatus
Patent number
5,714,954
Issue date
Feb 3, 1998
Holtek Microelectronics Inc.
Herman Chung
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
CONTACT PLUG AND METHOD FOR MANUFACTURING THE SAME
Publication number
20150061082
Publication date
Mar 5, 2015
Vanguard International Semiconductor Corporation
Yi-Tsung JAN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HIGH VOLTAGE METAL OXIDE SEMICONDUCTOR TRANSISTOR AND FABRICATION M...
Publication number
20080308868
Publication date
Dec 18, 2008
United Microelectronics Corp.
Rong-Tzong Wu
H01 - BASIC ELECTRIC ELEMENTS