Growing community of inventors

Chiba, Japan

Norifumi Sakai

Average Co-Inventor Count = 8.00

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 = 22

Norifumi SakaiKohei Mitsuhashi (1 patent)Norifumi SakaiAtsushi Moriya (1 patent)Norifumi SakaiMasanobu Kawata (1 patent)Norifumi SakaiRyo Kawarabuki (1 patent)Norifumi SakaiHirohumi Tanaka (1 patent)Norifumi SakaiYouichi Yamamoto (1 patent)Norifumi SakaiKeita Kamiyama (1 patent)Norifumi SakaiNorifumi Sakai (1 patent)Kohei MitsuhashiKohei Mitsuhashi (4 patents)Atsushi MoriyaAtsushi Moriya (3 patents)Masanobu KawataMasanobu Kawata (3 patents)Ryo KawarabukiRyo Kawarabuki (2 patents)Hirohumi TanakaHirohumi Tanaka (1 patent)Youichi YamamotoYouichi Yamamoto (1 patent)Keita KamiyamaKeita Kamiyama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyo Engineering Corporation (1 from 171 patents)

2. Nittetsu Mining Co., Ltd. (1 from 43 patents)

3. Sumitomo Corporation (1 from 22 patents)


1 patent:

1. 9255011 - Method for producing lithium carbonate

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