Growing community of inventors

Tokyo, Japan

Sumio Hamada

Average Co-Inventor Count = 3.00

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 = 8

Sumio HamadaKenji Usui (1 patent)Sumio HamadaTakeshi Noguchi (1 patent)Sumio HamadaSumio Hamada (1 patent)Kenji UsuiKenji Usui (12 patents)Takeshi NoguchiTakeshi Noguchi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nissan Engineering Ltd. (1 from 2 patents)


1 patent:

1. 4317705 - Method for measuring concentration of oxidant or reductant

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