Growing community of inventors

Hitachi, Japan

Yuichi Ohnuma

Average Co-Inventor Count = 3.00

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 = 3

Yuichi OhnumaMamoru Mita (1 patent)Yuichi OhnumaTadashi Kawanobe (1 patent)Yuichi OhnumaYuichi Ohnuma (1 patent)Mamoru MitaMamoru Mita (28 patents)Tadashi KawanobeTadashi Kawanobe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,843 patents)

2. Hitachi Cable Precision Co., Ltd. (1 from 4 patents)


1 patent:

1. 7888697 - Lead frame, method of making the same and light receiving/emitting device

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as of
12/25/2025
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