Growing community of inventors

Ube, Japan

Yasutaka Arima

Average Co-Inventor Count = 6.00

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 = 4

Yasutaka Arima ↔ Sumio Umemura (1 patent)Yasutaka Arima ↔ Ryozo Kitoh (1 patent)Yasutaka Arima ↔ Hideaki Fukui (1 patent)Yasutaka Arima ↔ Kosuke Itoh (1 patent)Yasutaka Arima ↔ Shigeru Itoh (1 patent)Yasutaka ArimaYasutaka Arima (1 patent)Sumio UmemuraSumio Umemura (29 patents)Ryozo KitohRyozo Kitoh (6 patents)Hideaki FukuiHideaki Fukui (1 patent)Kosuke ItohKosuke Itoh (1 patent)Shigeru ItohShigeru Itoh (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ube Industries, Inc. (1 from 1,432 patents)


1 patent:

1. 4225462 - Catalyst for reducing nitrogen oxides and process for producing the same

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1/3/2026
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