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Hamamatsu, Japan

Tadakazu Otsuka

Average Co-Inventor Count = 2.40

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 = 11

Tadakazu OtsukaFumiyoshi Yoshizawa (3 patents)Tadakazu OtsukaKoji Takahashi (1 patent)Tadakazu OtsukaKatsuo Ikehata (1 patent)Tadakazu OtsukaTadakazu Otsuka (3 patents)Fumiyoshi YoshizawaFumiyoshi Yoshizawa (5 patents)Koji TakahashiKoji Takahashi (13 patents)Katsuo IkehataKatsuo Ikehata (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Roland Dg Corporation (3 from 216 patents)


3 patents:

1. 9132638 - Inkjet printer

2. 8424993 - Ink jet type recording device and computer program

3. 8393700 - Inkjet recording device with independently controllable light emitting devices

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as of
12/5/2025
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