Growing community of inventors

Tokyo, Japan

Hiroko Kawakami

Average Co-Inventor Count = 4.00

ph-index = 3

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 = 135

Hiroko Kawakami ↔ Kazuhiko Yamaoka (3 patents)Hiroko Kawakami ↔ Mitsuaki Kanada (3 patents)Hiroko Kawakami ↔ Ayako Tanaka (3 patents)Hiroko KawakamiHiroko Kawakami (3 patents)Kazuhiko YamaokaKazuhiko Yamaoka (15 patents)Mitsuaki KanadaMitsuaki Kanada (11 patents)Ayako TanakaAyako Tanaka (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nec Corporation (3 from 35,705 patents)


3 patents:

1. D491155 - Portable wireless telephone

2. D491156 - Portable wireless telephone

3. D478067 - Headphone

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as of
12/27/2025
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