Growing community of inventors

Sohka, Japan

Hisao Sagara

Average Co-Inventor Count = 3.00

ph-index = 2

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 = 19

Hisao SagaraSeiji Kosugi (2 patents)Hisao SagaraNorio Ando (2 patents)Hisao SagaraHisao Sagara (2 patents)Seiji KosugiSeiji Kosugi (8 patents)Norio AndoNorio Ando (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shoketsu Kinzoku Kogyo Kabushiki Kaisha (2 from 30 patents)


2 patents:

1. 4978148 - Coupling for multi-passage tube

2. 4796924 - Coupling for multi-passage tube

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as of
12/18/2025
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