Growing community of inventors

Tokyo, Japan

Hisayo Ishikawa

Average Co-Inventor Count = 3.00

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 = 26

Hisayo IshikawaAyako Kouno (2 patents)Hisayo IshikawaKouji Hayashi (2 patents)Hisayo IshikawaHisayo Ishikawa (2 patents)Ayako KounoAyako Kouno (17 patents)Kouji HayashiKouji Hayashi (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yokogawa Electric Corporation (2 from 1,328 patents)

2. Yokogawa Test & Measurement Corporation (2 from 28 patents)


2 patents:

1. D890796 - Measurement device display screen with transitional graphical user interface

2. D890795 - Measurement device display screen with transitional graphical user interface

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idiyas.com
as of
12/20/2025
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