Growing community of inventors

Hyogo, Japan

Hiroki Hirai

Average Co-Inventor Count = 9.00

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 = 48

Hiroki HiraiTakuji Hatakeyama (2 patents)Hiroki HiraiKazushi Shiren (2 patents)Hiroki HiraiYohei Ono (2 patents)Hiroki HiraiTakeshi Matsushita (2 patents)Hiroki HiraiToshiaki Ikuta (2 patents)Hiroki HiraiSoichiro Nakatsuka (2 patents)Hiroki HiraiKiichi Nakajima (2 patents)Hiroki HiraiJingping Ni (2 patents)Hiroki HiraiHiroki Hirai (2 patents)Takuji HatakeyamaTakuji Hatakeyama (28 patents)Kazushi ShirenKazushi Shiren (9 patents)Yohei OnoYohei Ono (6 patents)Takeshi MatsushitaTakeshi Matsushita (5 patents)Toshiaki IkutaToshiaki Ikuta (5 patents)Soichiro NakatsukaSoichiro Nakatsuka (4 patents)Kiichi NakajimaKiichi Nakajima (2 patents)Jingping NiJingping Ni (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kwansei Gakuin Educational Foundation (2 from 67 patents)

2. Jnc Corporation (1 from 581 patents)

3. Sk Materials Jnc Co., Ltd. (1 from 19 patents)


2 patents:

1. 12473315 - Polycyclic aromatic compound

2. 10374166 - Polycyclic aromatic compound

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as of
1/10/2026
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