Growing community of inventors

Takarazuka, Japan

Narumi Tada

Average Co-Inventor Count = 1.33

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 = 25

Narumi Tada ↔ Kaoru Matsuda (1 patent)Narumi TadaNarumi Tada (2 patents)Kaoru MatsudaKaoru Matsuda (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toa Electric Company, Ltd. (1 from 5 patents)

2. Toa Kabushiki Kaisha/toa Corporation (1 from 3 patents)


2 patents:

1. D327065 - Telephone set

2. D257841 - Telephone set

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as of
1/14/2026
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