Growing community of inventors

Fukushima, Japan

Hiroyuki Takayama

Average Co-Inventor Count = 3.00

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 = 1

Hiroyuki Takayama ↔ Ikuo Hayashi (1 patent)Hiroyuki Takayama ↔ Yasuhito Nakata (1 patent)Hiroyuki Takayama ↔ Kenji Kageno (1 patent)Hiroyuki Takayama ↔ Yusuke Fukushima (1 patent)Hiroyuki Takayama ↔ Hirotaka Itoh (0 patent)Hiroyuki Takayama ↔ Shunichi Hikino (0 patent)Hiroyuki TakayamaHiroyuki Takayama (2 patents)Ikuo HayashiIkuo Hayashi (7 patents)Yasuhito NakataYasuhito Nakata (4 patents)Kenji KagenoKenji Kageno (4 patents)Yusuke FukushimaYusuke Fukushima (3 patents)Hirotaka ItohHirotaka Itoh (0 patent)Shunichi HikinoShunichi Hikino (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nitto Boseki Co., Ltd. (2 from 266 patents)


2 patents:

1. 8680221 - Method for producing diallylamine acetate polymer

2. 6579933 - Process for producing aqueous solution of monoallylamine polymer

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as of
12/17/2025
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