Growing community of inventors

Kitakyushu, Japan

Jutaro Takagi

Average Co-Inventor Count = 2.00

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 = 3

Jutaro TakagiToshio Takagi (2 patents)Jutaro TakagiJutaro Takagi (2 patents)Toshio TakagiToshio Takagi (11 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kotobuki Tsushou Co., Ltd. (1 from 7 patents)

2. Kotobuki Holdings Co., Ltd. (1 from 3 patents)


2 patents:

1. 11401175 - Water-purification cartridge and water purifier

2. 10626025 - Water-purification cartridge and water purifier

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as of
12/20/2025
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