Growing community of inventors

Tokyo, Japan

Sadaaki Kumagai

Average Co-Inventor Count = 3.00

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 = 6

Sadaaki Kumagai ↔ Hiroki Awata (1 patent)Sadaaki Kumagai ↔ Tomoya Kawabuchi (1 patent)Sadaaki KumagaiSadaaki Kumagai (1 patent)Hiroki AwataHiroki Awata (4 patents)Tomoya KawabuchiTomoya Kawabuchi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Heavy Industries Meiki Engines, Co., Ltd. (1 from 4 patents)


1 patent:

1. D847860 - Internal combustion engine

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as of
12/15/2025
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