Growing community of inventors

Kobe, Japan

Hiroshi Maruyama

Average Co-Inventor Count = 1.00

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 = 11

Hiroshi MaruyamaHiroshi Maruyama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Heishin Sobi Kabushiki Kaisha (1 from 10 patents)


1 patent:

1. 4990070 - Rotary screw pump with suction vanes at intake port

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12/16/2025
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