Growing community of inventors

Tsukuba, Japan

Sigeru Koibuchi

Average Co-Inventor Count = 4.00

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 = 1

Sigeru Koibuchi ↔ Nobuo Miyadera (1 patent)Sigeru Koibuchi ↔ Tooru Takahashi (1 patent)Sigeru Koibuchi ↔ Masatoshi Yamaguchi (1 patent)Sigeru KoibuchiSigeru Koibuchi (1 patent)Nobuo MiyaderaNobuo Miyadera (19 patents)Tooru TakahashiTooru Takahashi (13 patents)Masatoshi YamaguchiMasatoshi Yamaguchi (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Chemical Company, Ltd. (1 from 1,641 patents)


1 patent:

1. 7162134 - Polymeric optical waveguide film

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12/31/2025
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