Growing community of inventors

Seongnam-si, South Korea

Ryuichi Kumai

Average Co-Inventor Count = 8.00

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 = 1

Ryuichi Kumai ↔ Donghyun Kim (1 patent)Ryuichi Kumai ↔ Yusuke Ota (1 patent)Ryuichi Kumai ↔ Youngsu Ko (1 patent)Ryuichi Kumai ↔ Hyuk Chung (1 patent)Ryuichi Kumai ↔ Minbo Bae (1 patent)Ryuichi Kumai ↔ Yusuke Katagiri (1 patent)Ryuichi Kumai ↔ Teppei Daito (1 patent)Ryuichi KumaiRyuichi Kumai (1 patent)Donghyun KimDonghyun Kim (14 patents)Yusuke OtaYusuke Ota (4 patents)Youngsu KoYoungsu Ko (2 patents)Hyuk ChungHyuk Chung (1 patent)Minbo BaeMinbo Bae (1 patent)Yusuke KatagiriYusuke Katagiri (1 patent)Teppei DaitoTeppei Daito (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Line Corporation (1 from 186 patents)


1 patent:

1. 9497143 - Method and system for providing on-air service using official account

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as of
12/31/2025
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