Growing community of inventors

Mizuho, Japan

Ayami Nagayama

Average Co-Inventor Count = 1.33

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 = 0

Ayami Nagayama ↔ Ayako Shimazu (1 patent)Ayami NagayamaAyami Nagayama (2 patents)Ayako ShimazuAyako Shimazu (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (2 from 3,608 patents)


2 patents:

1. 11554089 - Hair cosmetic

2. 11534380 - Hair treatment method

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as of
1/23/2026
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