Growing community of inventors

Yokohama, Japan

Kouichi Numata

Average Co-Inventor Count = 4.20

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 = 36

Kouichi Numata ↔ Masaharu Tanaka (1 patent)Kouichi Numata ↔ Katsutoshi Misuda (1 patent)Kouichi Numata ↔ Hitoshi Kijimuta (1 patent)Kouichi Numata ↔ Yoshinori Katayama (1 patent)Kouichi Numata ↔ Naoki Taneda (1 patent)Kouichi Numata ↔ Takashi Mukaiyama (1 patent)Kouichi Numata ↔ Toshiro Samejima (1 patent)Kouichi Numata ↔ Iku Tomari (1 patent)Kouichi NumataKouichi Numata (2 patents)Masaharu TanakaMasaharu Tanaka (26 patents)Katsutoshi MisudaKatsutoshi Misuda (18 patents)Hitoshi KijimutaHitoshi Kijimuta (13 patents)Yoshinori KatayamaYoshinori Katayama (6 patents)Naoki TanedaNaoki Taneda (5 patents)Takashi MukaiyamaTakashi Mukaiyama (3 patents)Toshiro SamejimaToshiro Samejima (1 patent)Iku TomariIku Tomari (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asahi Glass Company, Limited (2 from 2,560 patents)

2. Japan Tobacco Inc. (1 from 1,037 patents)


2 patents:

1. 5307821 - Tobacco raw material and method for its production

2. 5248637 - Highly heat resistant glass fiber and process for its production

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as of
12/8/2025
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