Growing community of inventors

Nara-ken, Japan

Keiji Katou

Average Co-Inventor Count = 6.00

ph-index = 2

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 = 32

Keiji Katou ↔ Hiroshi Kubota (2 patents)Keiji Katou ↔ Yoshiki Ichikawa (2 patents)Keiji Katou ↔ Yoshinori Otsuka (2 patents)Keiji Katou ↔ Yasuyuki Ishiguro (1 patent)Keiji Katou ↔ Takahiko Kimura (1 patent)Keiji Katou ↔ Fumito Mizoguchi (1 patent)Keiji Katou ↔ Hiroshige Araki (1 patent)Keiji KatouKeiji Katou (2 patents)Hiroshi KubotaHiroshi Kubota (38 patents)Yoshiki IchikawaYoshiki Ichikawa (13 patents)Yoshinori OtsukaYoshinori Otsuka (10 patents)Yasuyuki IshiguroYasuyuki Ishiguro (53 patents)Takahiko KimuraTakahiko Kimura (33 patents)Fumito MizoguchiFumito Mizoguchi (19 patents)Hiroshige ArakiHiroshige Araki (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharp Kabushiki Kaisha Corporation (2 from 25,530 patents)


2 patents:

1. D462712 - Toner cartridge

2. D451127 - Toner cartridge

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as of
12/7/2025
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