Growing community of inventors

San Jose, CA, United States of America

Chang Chul Ha

Average Co-Inventor Count = 2.25

ph-index = 2

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 = 12

Chang Chul HaKim Jung Jae (1 patent)Chang Chul HaLee Choon Rae (1 patent)Chang Chul HaSon Jong Woo (1 patent)Chang Chul HaKang Sung Gu (1 patent)Chang Chul HaChang Chul Ha (3 patents)Kim Jung JaeKim Jung Jae (2 patents)Lee Choon RaeLee Choon Rae (1 patent)Son Jong WooSon Jong Woo (1 patent)Kang Sung GuKang Sung Gu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cdream Corporation (3 from 5 patents)


3 patents:

1. 7071603 - Patterned seed layer suitable for electron-emitting device, and associated fabrication method

2. 7053538 - Sectioned resistor layer for a carbon nanotube electron-emitting device

3. 7005807 - Negative voltage driving of a carbon nanotube field emissive display

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as of
12/12/2025
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