Growing community of inventors

Osaka, Japan

Keiko Matoba

Average Co-Inventor Count = 2.00

ph-index = 4

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 = 79

Keiko MatobaTakehisa Nakagawa (3 patents)Keiko MatobaMasafumi Yamagami (2 patents)Keiko MatobaKouji Nishida (1 patent)Keiko MatobaKoji Nishida (1 patent)Keiko MatobaYukiko Ito (1 patent)Keiko MatobaKaname Nakao (1 patent)Keiko MatobaKeiko Matoba (7 patents)Takehisa NakagawaTakehisa Nakagawa (8 patents)Masafumi YamagamiMasafumi Yamagami (34 patents)Kouji NishidaKouji Nishida (14 patents)Koji NishidaKoji Nishida (3 patents)Yukiko ItoYukiko Ito (3 patents)Kaname NakaoKaname Nakao (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharp Corporation (7 from 847 patents)


7 patents:

1. D326461 - Refrigerator

2. D309510 - Hair drier

3. D308346 - Remote controller for scale

4. D308345 - Scale

5. D308344 - Scale

6. D299874 - Hair drier

7. D287299 - Hair setter

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idiyas.com
as of
12/19/2025
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