Growing community of inventors

Kunitachi, Japan

Takeshi Yokoyama

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

Takeshi Yokoyama ↔ Akira Terashima (1 patent)Takeshi Yokoyama ↔ Takumi Fujiwara (1 patent)Takeshi Yokoyama ↔ Hiroshi Mork (1 patent)Takeshi YokoyamaTakeshi Yokoyama (1 patent)Akira TerashimaAkira Terashima (7 patents)Takumi FujiwaraTakumi Fujiwara (2 patents)Hiroshi MorkHiroshi Mork (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Metal Mining Company, Ltd. (1 from 898 patents)


1 patent:

1. 5046801 - Optical waveguide having low optical damage

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12/18/2025
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