Growing community of inventors

Ibaraki, Japan

Eigi Hamashima

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 = 16

Eigi Hamashima ↔ Yoshio Okamoto (1 patent)Eigi Hamashima ↔ Yozo Nakamura (1 patent)Eigi Hamashima ↔ Mineo Kashiwaya (1 patent)Eigi HamashimaEigi Hamashima (1 patent)Yoshio OkamotoYoshio Okamoto (72 patents)Yozo NakamuraYozo Nakamura (28 patents)Mineo KashiwayaMineo Kashiwaya (25 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,517 patents)

2. Hitachi Automotive Engineering Co., Ltd. (1 from 152 patents)


1 patent:

1. 5109824 - Electromagnetic fuel injection valve

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