Growing community of inventors

Tokyo, Japan

Chieko Nakazawa

Average Co-Inventor Count = 1.33

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 = 18

Chieko NakazawaMichiaki Tomimatsu (3 patents)Chieko NakazawaYuko Kawasaki (1 patent)Chieko NakazawaChieko Nakazawa (8 patents)Michiaki TomimatsuMichiaki Tomimatsu (5 patents)Yuko KawasakiYuko Kawasaki (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tomy Company, Ltd. (8 from 577 patents)


8 patents:

1. D440245 - Camera

2. D439281 - Decorative table top amusement device

3. D344549 - Water game device

4. D329667 - Water game

5. D329471 - Water game

6. D329259 - Housing for water game

7. D329064 - Water game

8. D328108 - Water toy

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as of
1/14/2026
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