Growing community of inventors

Hiroshima, Japan

Shinji Oohama

Average Co-Inventor Count = 1.33

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 = 64

Shinji OohamaMasaharu Noma (2 patents)Shinji OohamaShinji Oohama (4 patents)Masaharu NomaMasaharu Noma (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ryobi Limited (4 from 546 patents)


4 patents:

1. 8522657 - Slide-type cutting machine

2. D529243 - Portable electric blower

3. 6735813 - Mechanism for switching airflow mode of air blower/vacuum

4. D480844 - Portable electric blower with dust collector

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as of
12/24/2025
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