Growing community of inventors

Kitakyushu, Japan

Kei Watanabe

Average Co-Inventor Count = 8.80

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 = 5

Kei WatanabeKiyotake Ukigai (2 patents)Kei WatanabeKatsuya Nagata (2 patents)Kei WatanabeYutaka Aihara (2 patents)Kei WatanabeShuhei Hayata (2 patents)Kei WatanabeMasateru Miyazaki (2 patents)Kei WatanabeHiroshi Nishijima (2 patents)Kei WatanabeNao Tanizaki (2 patents)Kei WatanabeHiroshi Tsuboi (1 patent)Kei WatanabeKoji Sonoda (1 patent)Kei WatanabeKenji Furukawa (1 patent)Kei WatanabeYu Ichikawa (1 patent)Kei WatanabeMasayoshi Enoki (1 patent)Kei WatanabeMao Jinde (1 patent)Kei WatanabeHiroki Kurita (1 patent)Kei WatanabeRyoko Uno (1 patent)Kei WatanabeKensuke Azuma (1 patent)Kei WatanabeYuwa Ishii (1 patent)Kei WatanabeKei Watanabe (3 patents)Kiyotake UkigaiKiyotake Ukigai (19 patents)Katsuya NagataKatsuya Nagata (14 patents)Yutaka AiharaYutaka Aihara (10 patents)Shuhei HayataShuhei Hayata (7 patents)Masateru MiyazakiMasateru Miyazaki (5 patents)Hiroshi NishijimaHiroshi Nishijima (2 patents)Nao TanizakiNao Tanizaki (2 patents)Hiroshi TsuboiHiroshi Tsuboi (15 patents)Koji SonodaKoji Sonoda (3 patents)Kenji FurukawaKenji Furukawa (1 patent)Yu IchikawaYu Ichikawa (1 patent)Masayoshi EnokiMasayoshi Enoki (1 patent)Mao JindeMao Jinde (1 patent)Hiroki KuritaHiroki Kurita (1 patent)Ryoko UnoRyoko Uno (1 patent)Kensuke AzumaKensuke Azuma (1 patent)Yuwa IshiiYuwa Ishii (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (3 from 1,192 patents)


3 patents:

1. 12232660 - Bathtub apparatus

2. 10272451 - Spout apparatus

3. 10071386 - Spouting apparatus

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/20/2025
Loading…