Growing community of inventors

Kobe, Japan

Jiro Niina

Average Co-Inventor Count = 1.20

ph-index = 3

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 = 35

Jiro NiinaRyuji Kajio (1 patent)Jiro NiinaMamoru Shitamori (1 patent)Jiro NiinaJiro Niina (4 patents)Ryuji KajioRyuji Kajio (4 patents)Mamoru ShitamoriMamoru Shitamori (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kawasaki Jukogyo Kabushiki Kaisha (4 from 3,330 patents)


4 patents:

1. 4996937 - Small boat

2. 4768453 - Watercraft

3. 4726311 - Unit for supporting handle of watercraft

4. 4644891 - Unit for mounting hood of watercraft

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as of
1/2/2026
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