Growing community of inventors

Nagano, Japan

Takahiro Koyama

Average Co-Inventor Count = 5.00

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 = 0

Takahiro Koyama ↔ Shigeto Nakajima (1 patent)Takahiro Koyama ↔ Tetsuya Goto (1 patent)Takahiro Koyama ↔ Satoshi Takano (1 patent)Takahiro Koyama ↔ Kenichi Hagino (1 patent)Takahiro KoyamaTakahiro Koyama (1 patent)Shigeto NakajimaShigeto Nakajima (15 patents)Tetsuya GotoTetsuya Goto (12 patents)Satoshi TakanoSatoshi Takano (2 patents)Kenichi HaginoKenichi Hagino (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toyota Jidoshokki (1 from 1,813 patents)

2. Nishina Industrial Co., Ltd. (1 from 13 patents)


1 patent:

1. 9835185 - Industrial vehicle

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as of
12/19/2025
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