Growing community of inventors

Kitakyushu, Japan

Makoto Watanabe

Average Co-Inventor Count = 9.47

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 = 42

Makoto Watanabe ↔ Hiroshi Kobayashi (2 patents)Makoto Watanabe ↔ Hiroshi Tanaka (2 patents)Makoto Watanabe ↔ Hiroshi Okada (2 patents)Makoto Watanabe ↔ Toshiaki Kayahara (2 patents)Makoto Watanabe ↔ Katsuyuki Suehiro (2 patents)Makoto Watanabe ↔ Kenichi Ogata (2 patents)Makoto Watanabe ↔ Hideshi Yamamoto (2 patents)Makoto Watanabe ↔ Masaya Soh (2 patents)Makoto Watanabe ↔ Ryosuke Hayashi (1 patent)Makoto WatanabeMakoto Watanabe (2 patents)Hiroshi KobayashiHiroshi Kobayashi (28 patents)Hiroshi TanakaHiroshi Tanaka (10 patents)Hiroshi OkadaHiroshi Okada (4 patents)Toshiaki KayaharaToshiaki Kayahara (4 patents)Katsuyuki SuehiroKatsuyuki Suehiro (3 patents)Kenichi OgataKenichi Ogata (2 patents)Hideshi YamamotoHideshi Yamamoto (2 patents)Masaya SohMasaya Soh (2 patents)Ryosuke HayashiRyosuke Hayashi (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (2 from 1,193 patents)


2 patents:

1. 6108826 - Adjustable trap for a toilet stool

2. 5819326 - Connecting apparatus for a toilet and a drainpipe

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1/5/2026
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