Growing community of inventors

Tokyo, Japan

Dongna Qin

Average Co-Inventor Count = 4.00

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 = 2

Dongna Qin ↔ Kazuaki Hashimoto (1 patent)Dongna Qin ↔ Masatomo Shibui (1 patent)Dongna Qin ↔ Go Chiwata (1 patent)Dongna Qin ↔ Masatomo Shibui (0 patent)Dongna QinDongna Qin (1 patent)Kazuaki HashimotoKazuaki Hashimoto (34 patents)Masatomo ShibuiMasatomo Shibui (3 patents)Go ChiwataGo Chiwata (1 patent)Masatomo ShibuiMasatomo Shibui (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hoya Corporation (1 from 2,529 patents)

2. Hoev Company, Limited (1 from 1 patent)


1 patent:

1. 9040147 - Cover glass for a mobile device

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as of
12/30/2025
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