Growing community of inventors

Fukuoka, Japan

Yuji Shirahama

Average Co-Inventor Count = 8.00

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 = 5

Yuji ShirahamaMitsunori Watabe (1 patent)Yuji ShirahamaAkira Iino (1 patent)Yuji ShirahamaKazuhiro Inamura (1 patent)Yuji ShirahamaNobuyuki Takahashi (1 patent)Yuji ShirahamaYoji Sunagawa (1 patent)Yuji ShirahamaYuichi Yamahata (1 patent)Yuji ShirahamaShinya Eura (1 patent)Yuji ShirahamaYuji Shirahama (1 patent)Mitsunori WatabeMitsunori Watabe (14 patents)Akira IinoAkira Iino (9 patents)Kazuhiro InamuraKazuhiro Inamura (2 patents)Nobuyuki TakahashiNobuyuki Takahashi (1 patent)Yoji SunagawaYoji Sunagawa (1 patent)Yuichi YamahataYuichi Yamahata (1 patent)Shinya EuraShinya Eura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Jgc Catalysts & Chemicals Ltd. (1 from 124 patents)


1 patent:

1. 8795513 - Hydrocracking catalyst for heavy oil and method for hydrotreating heavy oil using same

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1/10/2026
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