David Chang

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Power-supplying device for generating different voltage outputs
- Patent number 6,191,498
- Issue date Feb 20, 2001
- Pacific Technology Co., Ltd.
- David Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Device for converting direct current input into multiple voltage ou...
- Patent number 6,188,201
- Issue date Feb 13, 2001
- Pacific Technology Co., Ltd.
- David Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Computer graphic drawing apparatus with coarse and fine controls
- Patent number 4,891,632
- Issue date Jan 2, 1990
- King Phoenix Co., Ltd.
- David Chang
- G06 - COMPUTING CALCULATING COUNTING