Growing community of inventors

Ibaraki, Japan

Eiji Yoshikawa

Average Co-Inventor Count = 2.82

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

Eiji YoshikawaHidenori Hanaoka (5 patents)Eiji YoshikawaYuka Imamoto (3 patents)Eiji YoshikawaSatoshi Kobayashi (2 patents)Eiji YoshikawaTaichi Senda (2 patents)Eiji YoshikawaNazrul Islam (1 patent)Eiji YoshikawaTomoya Kashiki (1 patent)Eiji YoshikawaMasaya Nakano (1 patent)Eiji YoshikawaMasashi Asano (1 patent)Eiji YoshikawaEiji Yoshikawa (8 patents)Hidenori HanaokaHidenori Hanaoka (25 patents)Yuka ImamotoYuka Imamoto (3 patents)Satoshi KobayashiSatoshi Kobayashi (17 patents)Taichi SendaTaichi Senda (10 patents)Nazrul IslamNazrul Islam (6 patents)Tomoya KashikiTomoya Kashiki (4 patents)Masaya NakanoMasaya Nakano (3 patents)Masashi AsanoMasashi Asano (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Chemical Company, Limited (8 from 6,892 patents)

2. Cambridge Display Technology Limited (1 from 335 patents)


8 patents:

1. 12305104 - Azo compound, composition, film, laminate, and display device

2. 10239886 - Polymer compound and organic semiconductor device using the same

3. 10096785 - Tetracenothiophene derivatives with alkoxy-c-alkyne solubilising units and their applications as organic semiconductors

4. 7732643 - Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same

5. 7671226 - Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same

6. 7439379 - Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same

7. 7241927 - Transition metal complexes, ligands, catalysts for olefin polymerization, and process for production of olefin polymers

8. 7141690 - Transition metal complexes, ligands, polymerization catalysts for olefins, and process for production of olefin polymers

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as of
12/6/2025
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