Growing community of inventors

Miyagi, Japan

Fumitaka Narumi

Average Co-Inventor Count = 5.00

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 = 5

Fumitaka Narumi ↔ Sotaro Miyano (1 patent)Fumitaka Narumi ↔ Hitoshi Kumagai (1 patent)Fumitaka Narumi ↔ Nobuhiko Iki (1 patent)Fumitaka Narumi ↔ Naoya Morohashi (1 patent)Fumitaka NarumiFumitaka Narumi (1 patent)Sotaro MiyanoSotaro Miyano (8 patents)Hitoshi KumagaiHitoshi Kumagai (6 patents)Nobuhiko IkiNobuhiko Iki (2 patents)Naoya MorohashiNaoya Morohashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cosmo Oil Co., Ltd. (1 from 163 patents)

2. Cosmo Research Institute (1 from 42 patents)


1 patent:

1. 5881358 - Composition for extracting transition metal and method for extracting

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12/30/2025
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