Growing community of inventors

Tokyo, Japan

Kiyoko Nakagaki

Average Co-Inventor Count = 3.33

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 = 19

Kiyoko NakagakiMasaki Itabashi (3 patents)Kiyoko NakagakiHirokazu Hamada (3 patents)Kiyoko NakagakiHideyuki Hanazawa (1 patent)Kiyoko NakagakiMasaaki Moriyama (1 patent)Kiyoko NakagakiHiroe Tanahashi (1 patent)Kiyoko NakagakiTomoko Umezawa (1 patent)Kiyoko NakagakiKiyoko Nakagaki (4 patents)Masaki ItabashiMasaki Itabashi (4 patents)Hirokazu HamadaHirokazu Hamada (3 patents)Hideyuki HanazawaHideyuki Hanazawa (7 patents)Masaaki MoriyamaMasaaki Moriyama (3 patents)Hiroe TanahashiHiroe Tanahashi (3 patents)Tomoko UmezawaTomoko Umezawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (4 from 3,604 patents)


4 patents:

1. 6451327 - Skin cleansing composition

2. 5856284 - Detergent composition including a glycerol derivative, a polyhydric

3. 5681804 - Detergent composition

4. 5496492 - Detergent composition

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as of
1/10/2026
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