Growing community of inventors

Chiba, Japan

Junko Hirata

Average Co-Inventor Count = 3.00

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 = 3

Junko HirataHiroshi Miyamoto (2 patents)Junko HirataShizuo Adachi (2 patents)Junko HirataJunko Hirata (2 patents)Hiroshi MiyamotoHiroshi Miyamoto (8 patents)Shizuo AdachiShizuo Adachi (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (2 from 58,130 patents)


2 patents:

1. 5835587 - Telephone having a hold function

2. 5784458 - Telephone having a hold function

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as of
12/21/2025
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