Growing community of inventors

Koto-ku, Japan

Kenichi Koyama

Average Co-Inventor Count = 8.00

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 = 2

Kenichi Koyama ↔ Masahiro Suzuki (1 patent)Kenichi Koyama ↔ Makoto Taguchi (1 patent)Kenichi Koyama ↔ Takashi Azuma (1 patent)Kenichi Koyama ↔ Aya Kojima (1 patent)Kenichi Koyama ↔ Keisuke Mizutani (1 patent)Kenichi Koyama ↔ Jin Kato (1 patent)Kenichi Koyama ↔ Tetsuya Asaka (1 patent)Kenichi KoyamaKenichi Koyama (1 patent)Masahiro SuzukiMasahiro Suzuki (28 patents)Makoto TaguchiMakoto Taguchi (15 patents)Takashi AzumaTakashi Azuma (2 patents)Aya KojimaAya Kojima (1 patent)Keisuke MizutaniKeisuke Mizutani (1 patent)Jin KatoJin Kato (1 patent)Tetsuya AsakaTetsuya Asaka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kawasaki Jukogyo Kabushiki Kaisha (1 from 3,322 patents)

2. East Japan Railway Company (1 from 18 patents)

3. Japan Transport Engineering Company (1 from 2 patents)


1 patent:

1. 9067606 - Railcar

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as of
12/15/2025
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