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Kanagawa, Japan

Sumio Ema

Average Co-Inventor Count = 1.64

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 = 153

Sumio EmaTetsuo Saito (2 patents)Sumio EmaKoichi Maeda (1 patent)Sumio EmaSumio Ema (3 patents)Tetsuo SaitoTetsuo Saito (6 patents)Koichi MaedaKoichi Maeda (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokico, Ltd. (3 from 548 patents)


3 patents:

1. 4975849 - Suspension controller for vehicle

2. 4462610 - Vehicle height adjusting apparatus

3. 4354693 - Vehicle height adjusting device

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as of
12/17/2025
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