Growing community of inventors

Oita, Japan

Kazuharu Itoh

Average Co-Inventor Count = 5.00

ph-index = 3

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 = 30

Kazuharu ItohKazuyuki Watanabe (3 patents)Kazuharu ItohHisayoshi Yanagihara (3 patents)Kazuharu ItohHirotoshi Takahashi (3 patents)Kazuharu ItohSatoshi Iwamoto (3 patents)Kazuharu ItohKazuharu Itoh (3 patents)Kazuyuki WatanabeKazuyuki Watanabe (18 patents)Hisayoshi YanagiharaHisayoshi Yanagihara (10 patents)Hirotoshi TakahashiHirotoshi Takahashi (6 patents)Satoshi IwamotoSatoshi Iwamoto (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Showa Denko K.k. (2 from 1,960 patents)

2. Showa Denko Kabushiki Kaisha (1 from 405 patents)


3 patents:

1. 6323298 - Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its production

2. 6184328 - Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its production

3. 5916990 - Propylene-based polymer, method of its production, composition thereof,

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as of
12/21/2025
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