Growing community of inventors

Hamamatsu, Japan

Takayuki Ichikawa

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 = 2

Takayuki IchikawaTadayuki Onoda (3 patents)Takayuki IchikawaMichiko Koike (1 patent)Takayuki IchikawaTatsuro Isobe (1 patent)Takayuki IchikawaShuhei Sei (0 patent)Takayuki IchikawaTakayuki Ichikawa (2 patents)Tadayuki OnodaTadayuki Onoda (3 patents)Michiko KoikeMichiko Koike (1 patent)Tatsuro IsobeTatsuro Isobe (1 patent)Shuhei SeiShuhei Sei (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Roki Co., Ltd. (2 from 13 patents)


2 patents:

1. 9217400 - Intake apparatus

2. 8033359 - Intake sound adjusting device

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as of
12/15/2025
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