Growing community of inventors

Osaka, Japan

Shigeki Doi

Average Co-Inventor Count = 5.00

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 = 0

Shigeki Doi ↔ Naoki Okamoto (1 patent)Shigeki Doi ↔ Takayuki Morimoto (1 patent)Shigeki Doi ↔ Ryosuke Nanri (1 patent)Shigeki Doi ↔ Kosuke Yabuki (1 patent)Shigeki DoiShigeki Doi (1 patent)Naoki OkamotoNaoki Okamoto (44 patents)Takayuki MorimotoTakayuki Morimoto (12 patents)Ryosuke NanriRyosuke Nanri (2 patents)Kosuke YabukiKosuke Yabuki (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tsubakimoto Chain Company (1 from 906 patents)


1 patent:

1. 12038068 - Silent chain drive device

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as of
12/30/2025
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