Growing community of inventors

Ohtanimachi, Japan

Keiichiro Koba

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 = 4

Keiichiro Koba ↔ Noriaki Ohnishi (1 patent)Keiichiro Koba ↔ Shoichi Oi (1 patent)Keiichiro Koba ↔ Shinya Mori (1 patent)Keiichiro Koba ↔ Tadanobu Takata (1 patent)Keiichiro KobaKeiichiro Koba (1 patent)Noriaki OhnishiNoriaki Ohnishi (4 patents)Shoichi OiShoichi Oi (3 patents)Shinya MoriShinya Mori (2 patents)Tadanobu TakataTadanobu Takata (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsui Coke Co. Ltd. (1 from 13 patents)

2. Mitsui-kozan Coking Industry Co., Ltd. (1 from 1 patent)


1 patent:

1. 4354919 - Process for the liquefaction of coal

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12/12/2025
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