Growing community of inventors

Kamakura, Japan

Ayumi Nakajima

Average Co-Inventor Count = 1.35

ph-index = 5

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 = 143

Ayumi NakajimaTatsuya Kobayashi (3 patents)Ayumi NakajimaArata Ono (2 patents)Ayumi NakajimaAyumi Nakajima (7 patents)Tatsuya KobayashiTatsuya Kobayashi (85 patents)Arata OnoArata Ono (31 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nikon Vision Co., Ltd. (4 from 90 patents)

2. Nikon Corporation (3 from 8,891 patents)


7 patents:

1. D816750 - Binoculars

2. D742952 - Digital camera

3. D729300 - Camera lens

4. D716859 - Pair of binoculars

5. D682341 - Camera lens

6. D647932 - Liquid crystal display in viewfinder of a laser rangefinder

7. D647159 - Laser rangefinder

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as of
12/9/2025
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