Growing community of inventors

Tokyo, Japan

Hirofumi Kotaki

Average Co-Inventor Count = 3.33

ph-index = 2

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 = 30

Hirofumi Kotaki ↔ Masamichi Miyazaki (3 patents)Hirofumi Kotaki ↔ Masashi Hoshino (2 patents)Hirofumi Kotaki ↔ Shinji Hirose (2 patents)Hirofumi Kotaki ↔ Atsushi Karami (2 patents)Hirofumi KotakiHirofumi Kotaki (3 patents)Masamichi MiyazakiMasamichi Miyazaki (14 patents)Masashi HoshinoMasashi Hoshino (15 patents)Shinji HiroseShinji Hirose (9 patents)Atsushi KaramiAtsushi Karami (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Komatsu Corporation (3 from 2,730 patents)


3 patents:

1. 11739498 - Work vehicle

2. 11008731 - Work vehicle

3. 9702113 - Work vehicle

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as of
12/7/2025
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