Growing community of inventors

Sumida-ku, Japan

Shigefumi Sakai

Average Co-Inventor Count = 4.00

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 = 1

Shigefumi Sakai ↔ Chitoshi Shigeno (1 patent)Shigefumi Sakai ↔ Hideaki Kubo (1 patent)Shigefumi Sakai ↔ Atsuyuki Kiba (1 patent)Shigefumi SakaiShigefumi Sakai (1 patent)Chitoshi ShigenoChitoshi Shigeno (6 patents)Hideaki KuboHideaki Kubo (5 patents)Atsuyuki KibaAtsuyuki Kiba (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 8017046 - Skin cosmetic composition

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