Growing community of inventors

Wakayama, Japan

Akira Maruyama

Average Co-Inventor Count = 2.00

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 = 2

Akira MaruyamaHiroshi Oishi (1 patent)Akira MaruyamaAkira Maruyama (1 patent)Hiroshi OishiHiroshi Oishi (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sumitomo Metal Industries, Inc. (1 from 929 patents)


1 patent:

1. 5069981 - Steel sheet dip-plated with a Zn-Al alloy and process for the

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12/19/2025
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