Growing community of inventors

Tokyo, Japan

Hiroaki Ryujin

Average Co-Inventor Count = 7.00

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 = 0

Hiroaki RyujinKaoru Kumagai (1 patent)Hiroaki RyujinKazuhiro Ogawa (1 patent)Hiroaki RyujinRitsuo Sakimura (1 patent)Hiroaki RyujinTadayuki Morishita (1 patent)Hiroaki RyujinKoichiro Fuse (1 patent)Hiroaki RyujinYoshihito Saito (1 patent)Hiroaki RyujinHiroaki Ryujin (1 patent)Kaoru KumagaiKaoru Kumagai (152 patents)Kazuhiro OgawaKazuhiro Ogawa (41 patents)Ritsuo SakimuraRitsuo Sakimura (5 patents)Tadayuki MorishitaTadayuki Morishita (1 patent)Koichiro FuseKoichiro Fuse (1 patent)Yoshihito SaitoYoshihito Saito (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Topcon (1 from 1,033 patents)

2. Maeda Corporation Limited (14 patents)


1 patent:

1. 10670493 - Safety diagnosis system for structure

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12/31/2025
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