Growing community of inventors

Anjo, Japan

Takashi Kumagai

Average Co-Inventor Count = 4.00

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

Takashi KumagaiHirokazu Hagiwara (2 patents)Takashi KumagaiYoshifumi Morita (2 patents)Takashi KumagaiYukio Yamashiro (2 patents)Takashi KumagaiTakashi Kumagai (2 patents)Hirokazu HagiwaraHirokazu Hagiwara (12 patents)Yoshifumi MoritaYoshifumi Morita (10 patents)Yukio YamashiroYukio Yamashiro (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Makita Corporation (2 from 2,205 patents)


2 patents:

1. 8197310 - Dust box and electric tool with the dust box

2. 8066554 - Dust box and electric tool with the dust box

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1/7/2026
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