Growing community of inventors

Hsinchu, Taiwan

Ping-Ju Chang

Average Co-Inventor Count = 3.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 11

Ping-Ju ChangChin-Sung Liu (2 patents)Ping-Ju ChangYi-Jung Chen (1 patent)Ping-Ju ChangChien-Chung Pien (1 patent)Ping-Ju ChangPing-Ju Chang (2 patents)Chin-Sung LiuChin-Sung Liu (23 patents)Yi-Jung ChenYi-Jung Chen (20 patents)Chien-Chung PienChien-Chung Pien (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Topray Mems Inc. (2 from 16 patents)


2 patents:

1. 9341811 - Method and apparatus for adjusting-free automatic focus

2. 9195026 - Step response suppression structure of lens driving apparatus

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