Growing community of inventors

Ichikawa, Japan

Takafumi Hirama

Average Co-Inventor Count = 2.00

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 = 15

Takafumi Hirama ↔ Mitsugu Fujihira (1 patent)Takafumi HiramaTakafumi Hirama (1 patent)Mitsugu FujihiraMitsugu Fujihira (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ichikawa Woolen Textile Co., Ltd. (1 from 16 patents)


1 patent:

1. 5318831 - Dust collecting filter cloth

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12/16/2025
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