Growing community of inventors

Kawasaki, Japan

Akiko Nagayama

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 = 77

Akiko NagayamaMasato Tamaki (2 patents)Akiko NagayamaMakoto Ogawa (2 patents)Akiko NagayamaNaofumi Hosoda (2 patents)Akiko NagayamaYuji Tsusaka (2 patents)Akiko NagayamaEiji Takamatsu (2 patents)Akiko NagayamaAkiko Nagayama (2 patents)Masato TamakiMasato Tamaki (6 patents)Makoto OgawaMakoto Ogawa (3 patents)Naofumi HosodaNaofumi Hosoda (3 patents)Yuji TsusakaYuji Tsusaka (2 patents)Eiji TakamatsuEiji Takamatsu (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (2 from 42,517 patents)


2 patents:

1. 7076440 - Business processing system employing a notice board business system database and method of processing the same

2. 6275809 - Business processing system employing a notice board business system database and method of processing the same

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as of
1/8/2026
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