Growing community of inventors

Tochigi, Japan

Takao Nakayama

Average Co-Inventor Count = 4.86

ph-index = 3

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 = 82

Takao NakayamaMitsugu Hamajima (3 patents)Takao NakayamaMasahito Tanaka (3 patents)Takao NakayamaMinoru Nakanishi (2 patents)Takao NakayamaMayumi Kimura (2 patents)Takao NakayamaHironori Kawasaki (1 patent)Takao NakayamaYoji Kameo (1 patent)Takao NakayamaTakao Nakayama (3 patents)Mitsugu HamajimaMitsugu Hamajima (25 patents)Masahito TanakaMasahito Tanaka (12 patents)Minoru NakanishiMinoru Nakanishi (29 patents)Mayumi KimuraMayumi Kimura (6 patents)Hironori KawasakiHironori Kawasaki (9 patents)Yoji KameoYoji Kameo (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (3 from 3,601 patents)


3 patents:

1. 6955667 - Absorbent article

2. 6293935 - Absorbent article with liquid shrinkable elements

3. 6159190 - Absorbent article

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as of
12/11/2025
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