Growing community of inventors

Tokyo, Japan

Eiji Kayanuma

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 = 0

Eiji KayanumaHiroshi Arai (1 patent)Eiji KayanumaKentaro Hatada (1 patent)Eiji KayanumaTomohiro Kurihara (1 patent)Eiji KayanumaHaruo Satou (1 patent)Eiji KayanumaNobuyoshi Usami (1 patent)Eiji KayanumaEiji Kayanuma (1 patent)Hiroshi AraiHiroshi Arai (22 patents)Kentaro HatadaKentaro Hatada (1 patent)Tomohiro KuriharaTomohiro Kurihara (1 patent)Haruo SatouHaruo Satou (1 patent)Nobuyoshi UsamiNobuyoshi Usami (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toshiba (1 from 52,722 patents)

2. Toshiba Solutions Corporation (1 from 196 patents)


1 patent:

1. 9043239 - Securities trading system and device

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as of
12/11/2025
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