Growing community of inventors

Takatsuki, Japan

Seiji Kashima

Average Co-Inventor Count = 6.00

ph-index = 1

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 = 8

Seiji Kashima ↔ Kazuhiko Tanaka (1 patent)Seiji Kashima ↔ Masao Kawamoto (1 patent)Seiji Kashima ↔ Kiyoshi Hirakawa (1 patent)Seiji Kashima ↔ Takao Akagi (1 patent)Seiji Kashima ↔ Shinji Yamaguchi (1 patent)Seiji Kashima ↔ Kazuhiko Tanaka (1 patent)Seiji Kashima ↔ Kiyoshi Hirakawa (1 patent)Seiji Kashima ↔ Shinji Yamaguchi (1 patent)Seiji Kashima ↔ Masao Kawamoto (1 patent)Seiji KashimaSeiji Kashima (1 patent)Kazuhiko TanakaKazuhiko Tanaka (23 patents)Masao KawamotoMasao Kawamoto (21 patents)Kiyoshi HirakawaKiyoshi Hirakawa (13 patents)Takao AkagiTakao Akagi (12 patents)Shinji YamaguchiShinji Yamaguchi (11 patents)Kazuhiko TanakaKazuhiko Tanaka (1 patent)Kiyoshi HirakawaKiyoshi Hirakawa (1 patent)Shinji YamaguchiShinji Yamaguchi (1 patent)Masao KawamotoMasao Kawamoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kuraray Co., Ltd. (1 from 1,866 patents)

2. Masao Kawamoto (0 patent)

3. Shinji Yamaguchi (0 patent)

4. Seiji Kashima (0 patent)

5. Kazuhiko Tanaka (0 patent)

6. Kiyoshi Hirakawa (0 patent)

7. Takao Akagi (0 patent)


1 patent:

1. 5087519 - Ethylene-vinyl alcohol copolymer composite fiber and production thereof

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as of
12/27/2025
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