Growing community of inventors

Saitama, Japan

Hirokazu Ishikawa

Average Co-Inventor Count = 4.00

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 = 4

Hirokazu Ishikawa ↔ Junichi Yokoyama (1 patent)Hirokazu Ishikawa ↔ Takashi Nagashima (1 patent)Hirokazu Ishikawa ↔ Akinori Hamana (1 patent)Hirokazu IshikawaHirokazu Ishikawa (1 patent)Junichi YokoyamaJunichi Yokoyama (9 patents)Takashi NagashimaTakashi Nagashima (8 patents)Akinori HamanaAkinori Hamana (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujinon Corporation (1 from 695 patents)


1 patent:

1. 7980708 - Document presentation device including a movable part

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12/11/2025
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