Growing community of inventors

Gyoda, Japan

Hiroshi Kumai

Average Co-Inventor Count = 3.43

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 = 4

Hiroshi KumaiAkihiko Yamanaka (2 patents)Hiroshi KumaiMitsuteru Suyama (1 patent)Hiroshi KumaiMasayo Hosoda (1 patent)Hiroshi KumaiMinoru Hasegawa (1 patent)Hiroshi KumaiHiroshi Kumai (2 patents)Akihiko YamanakaAkihiko Yamanaka (2 patents)Mitsuteru SuyamaMitsuteru Suyama (1 patent)Masayo HosodaMasayo Hosoda (1 patent)Minoru HasegawaMinoru Hasegawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Colcoat Co., Ltd. (2 from 4 patents)


2 patents:

1. 8632882 - Dialkoxymagnesium granules and method for their synthesis

2. 5318724 - Antistatic coating composition

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as of
12/9/2025
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