Growing community of inventors

Taoyuan, Taiwan

Chieh-An Chang

Average Co-Inventor Count = 5.01

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 = 6

Chieh-An ChangShu-Shan Chen (16 patents)Chieh-An ChangChao-Chang Hu (15 patents)Chieh-An ChangPai-Jui Cheng (14 patents)Chieh-An ChangHsiao-Hsin Hu (8 patents)Chieh-An ChangMin-Hsiu Tsai (6 patents)Chieh-An ChangJungsuck Ryoo (6 patents)Chieh-An ChangChao-Hsi Wang (1 patent)Chieh-An ChangChieh-An Chang (16 patents)Shu-Shan ChenShu-Shan Chen (94 patents)Chao-Chang HuChao-Chang Hu (315 patents)Pai-Jui ChengPai-Jui Cheng (19 patents)Hsiao-Hsin HuHsiao-Hsin Hu (15 patents)Min-Hsiu TsaiMin-Hsiu Tsai (11 patents)Jungsuck RyooJungsuck Ryoo (10 patents)Chao-Hsi WangChao-Hsi Wang (50 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tdk Taiwan Corporation (11 from 640 patents)

2. Tdk Corporation (5 from 7,968 patents)


16 patents:

1. 12498536 - Optical element driving mechanism

2. 12461428 - Optical element driving mechanism

3. 12449631 - Optical element driving mechanism

4. 12353046 - Optical component driving mechanism

5. 12353045 - Optical element driving mechanism

6. 12353047 - Optical system

7. 12323687 - Driving mechanism

8. 12225276 - Optical element driving mechanism

9. 12078861 - Optical system

10. 12066688 - Optical element drive mechanism

11. 11994740 - Optical element drive mechanism

12. 11867969 - Optical element driving mechanism

13. 11809013 - Optical system

14. 11561360 - Optical system

15. 11550112 - Optical system

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as of
12/26/2025
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