Growing community of inventors

Kyoto, Japan

Kazuhisa Kumagai

Average Co-Inventor Count = 6.00

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

Kazuhisa KumagaiMotoharu Haga (2 patents)Kazuhisa KumagaiShuntaro Takahashi (2 patents)Kazuhisa KumagaiHajime Okuda (2 patents)Kazuhisa KumagaiShingo Yoshida (2 patents)Kazuhisa KumagaiKazuki Okuyama (2 patents)Kazuhisa KumagaiKazuhisa Kumagai (2 patents)Motoharu HagaMotoharu Haga (43 patents)Shuntaro TakahashiShuntaro Takahashi (20 patents)Hajime OkudaHajime Okuda (10 patents)Shingo YoshidaShingo Yoshida (6 patents)Kazuki OkuyamaKazuki Okuyama (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rohm Co., Ltd. (2 from 5,996 patents)


2 patents:

1. 12183663 - Semiconductor device

2. 12021012 - Semiconductor device

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idiyas.com
as of
12/10/2025
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