Growing community of inventors

Tokyo, Japan

Akihiko Amana

Average Co-Inventor Count = 6.00

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 = 19

Akihiko Amana ↔ Naoki Tanaka (1 patent)Akihiko Amana ↔ Toshikazu Yamada (1 patent)Akihiko Amana ↔ Toshiyuki Fukumoto (1 patent)Akihiko Amana ↔ Yoshikazu Maeda (1 patent)Akihiko Amana ↔ Eiji Fukuzawa (1 patent)Akihiko AmanaAkihiko Amana (1 patent)Naoki TanakaNaoki Tanaka (59 patents)Toshikazu YamadaToshikazu Yamada (9 patents)Toshiyuki FukumotoToshiyuki Fukumoto (3 patents)Yoshikazu MaedaYoshikazu Maeda (3 patents)Eiji FukuzawaEiji Fukuzawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kajima Corporation (1 from 150 patents)


1 patent:

1. 5163256 - Elasto-plastic damper for structure

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1/8/2026
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