Growing community of inventors

Nagoya, Japan

Katsuhiko Ibuki

Average Co-Inventor Count = 2.00

ph-index = 4

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 = 94

Katsuhiko Ibuki ↔ Koutarou Takahata (2 patents)Katsuhiko Ibuki ↔ Kotaro Takahata (1 patent)Katsuhiko Ibuki ↔ Akihiro Hattori (1 patent)Katsuhiko IbukiKatsuhiko Ibuki (4 patents)Koutarou TakahataKoutarou Takahata (4 patents)Kotaro TakahataKotaro Takahata (18 patents)Akihiro HattoriAkihiro Hattori (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Aiphone Co., Ltd. (4 from 78 patents)


4 patents:

1. D686184 - Interphone

2. D624522 - Interphone

3. D624523 - Interphone

4. D620917 - Interphone

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as of
12/11/2025
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