Growing community of inventors

Kamakura, Japan

Keiji Amatsu

Average Co-Inventor Count = 10.00

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 = 69

Keiji AmatsuHirofumi Morita (1 patent)Keiji AmatsuStephen J Schmandt (1 patent)Keiji AmatsuKatsuhiro Tanaka (1 patent)Keiji AmatsuMikio Sakaki (1 patent)Keiji AmatsuMinoru Massaki (1 patent)Keiji AmatsuNobuo Nomura (1 patent)Keiji AmatsuHiroshi Hirai (1 patent)Keiji AmatsuTakeo Nakajima (1 patent)Keiji AmatsuZenhachiroh Butoh (1 patent)Keiji AmatsuKeiji Amatsu (1 patent)Hirofumi MoritaHirofumi Morita (5 patents)Stephen J SchmandtStephen J Schmandt (4 patents)Katsuhiro TanakaKatsuhiro Tanaka (3 patents)Mikio SakakiMikio Sakaki (1 patent)Minoru MassakiMinoru Massaki (1 patent)Nobuo NomuraNobuo Nomura (1 patent)Hiroshi HiraiHiroshi Hirai (1 patent)Takeo NakajimaTakeo Nakajima (1 patent)Zenhachiroh ButohZenhachiroh Butoh (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Business Machines Corporation (1 from 164,173 patents)


1 patent:

1. 5471615 - Distributed data processing system having front-end and back-end

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12/21/2025
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