Growing community of inventors

Nagoya, Japan

Koutarou Takahata

Average Co-Inventor Count = 1.33

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 = 259

Koutarou Takahata ↔ Katsuhiko Ibuki (2 patents)Koutarou TakahataKoutarou Takahata (4 patents)Katsuhiko IbukiKatsuhiko Ibuki (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


4 patents:

1. D624522 - Interphone

2. D624523 - Interphone

3. D595260 - Interphone

4. D588574 - Interphone

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as of
12/9/2025
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