Growing community of inventors

Tokyo, Japan

Kazuo Maruta

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 = 41

Kazuo Maruta ↔ Ryohei Kumagai (1 patent)Kazuo MarutaKazuo Maruta (1 patent)Ryohei KumagaiRyohei Kumagai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Advance Co., Ltd. (1 from 11 patents)


1 patent:

1. 4325191 - Coffee roaster

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as of
12/18/2025
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