Growing community of inventors

Sakura, Japan

Tomohisa Watanabe

Average Co-Inventor Count = 5.00

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 = 13

Tomohisa Watanabe ↔ Junya Tada (2 patents)Tomohisa Watanabe ↔ Takehiko Sato (2 patents)Tomohisa Watanabe ↔ Kouichi Oka (2 patents)Tomohisa Watanabe ↔ Makoto Akihiro (2 patents)Tomohisa WatanabeTomohisa Watanabe (2 patents)Junya TadaJunya Tada (3 patents)Takehiko SatoTakehiko Sato (3 patents)Kouichi OkaKouichi Oka (3 patents)Makoto AkihiroMakoto Akihiro (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Metal Mining Company, Ltd. (2 from 898 patents)


2 patents:

1. 4968564 - Magnetic recording medium

2. 4769282 - Magnetic recording medium

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1/9/2026
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