Growing community of inventors

Tokyo, Japan

Eiji Sumitomo

Average Co-Inventor Count = 3.20

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 = 0

Eiji SumitomoKazutaka Kimura (4 patents)Eiji SumitomoKanta Suzuki (4 patents)Eiji SumitomoAi Matsubara (1 patent)Eiji SumitomoEiji Sumitomo (4 patents)Kazutaka KimuraKazutaka Kimura (17 patents)Kanta SuzukiKanta Suzuki (7 patents)Ai MatsubaraAi Matsubara (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yahoo Japan Corporation (4 from 174 patents)


4 patents:

1. 10078847 - Distribution device and distribution method

2. 10003859 - Distribution device and distribution method

3. 9794635 - Distribution device, distribution method, and non-transitory computer readable storage medium

4. 9544342 - Digital media playback instruction distribution device, method, and program that calculate a digital media playback delay and distribute a delay instruction with website content

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as of
12/12/2025
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