Growing community of inventors

Funabashi, Japan

Hiroji Tanaka

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 = 4

Hiroji Tanaka ↔ Nobuharu Hayashi (1 patent)Hiroji TanakaHiroji Tanaka (1 patent)Nobuharu HayashiNobuharu Hayashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Rubber Industries Limited (1 from 4,415 patents)

2. Penta-ocean Construction Co., Ltd. (1 from 3 patents)


1 patent:

1. 5150744 - Mooring apparatus

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as of
12/9/2025
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