Growing community of inventors

Tokyo, Japan

Ryuki Hashitani

Average Co-Inventor Count = 3.33

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 = 7

Ryuki Hashitani ↔ Masahiko Noro (2 patents)Ryuki Hashitani ↔ Kouji Okada (2 patents)Ryuki Hashitani ↔ Hisao Nagai (2 patents)Ryuki Hashitani ↔ Takeshi Wakao (2 patents)Ryuki Hashitani ↔ Hiroshi Sagane (1 patent)Ryuki HashitaniRyuki Hashitani (3 patents)Masahiko NoroMasahiko Noro (10 patents)Kouji OkadaKouji Okada (5 patents)Hisao NagaiHisao Nagai (2 patents)Takeshi WakaoTakeshi Wakao (2 patents)Hiroshi SaganeHiroshi Sagane (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Techno Polymer Company Limited (3 from 47 patents)

2. Daicel Chemical Industries, Ltd. (1 from 1,165 patents)


3 patents:

1. 6340721 - Flame-retardant thermoplastic resin composition

2. 6136901 - Flame-retardant thermoplastic resin composition

3. 5916936 - Flame-retardant thermoplastic resin composition

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as of
1/14/2026
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