Growing community of inventors

Nabari, Japan

Takuji Koyanagi

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 = 35

Takuji Koyanagi ↔ Nobuhiro Ohno (1 patent)Takuji KoyanagiTakuji Koyanagi (1 patent)Nobuhiro OhnoNobuhiro Ohno (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ina Seito Co., Ltd. (1 from 6 patents)


1 patent:

1. 4126719 - Reinforced plastic products with decorated surfaces

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as of
12/19/2025
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