Growing community of inventors

Taipei, Taiwan

Sung-Jay 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 = 0

Sung-Jay ChangChih-Pu Hsu (1 patent)Sung-Jay ChangHsiu-Hua Yen (1 patent)Sung-Jay ChangSung-Jay Chang (1 patent)Chih-Pu HsuChih-Pu Hsu (6 patents)Hsiu-Hua YenHsiu-Hua Yen (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Chiun Mai Communication Systems, Inc. (1 from 378 patents)


1 patent:

1. 9984153 - Electronic device and music play system and method

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as of
12/28/2025
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