Growing community of inventors

Tokyo, Japan

Hirokazu Sampei

Average Co-Inventor Count = 4.00

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 = 9

Hirokazu SampeiMasaru Miyazaki (1 patent)Hirokazu SampeiMasayoshi Esashi (1 patent)Hirokazu SampeiKiyoto Nakamura (1 patent)Hirokazu SampeiYongxun Liu (1 patent)Hirokazu SampeiYoshiaki Moro (1 patent)Hirokazu SampeiHiroshi Arikawa (1 patent)Hirokazu SampeiHirokazu Sampei (2 patents)Masaru MiyazakiMasaru Miyazaki (34 patents)Masayoshi EsashiMasayoshi Esashi (15 patents)Kiyoto NakamuraKiyoto Nakamura (14 patents)Yongxun LiuYongxun Liu (10 patents)Yoshiaki MoroYoshiaki Moro (5 patents)Hiroshi ArikawaHiroshi Arikawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Adv Antest Corporation (2 from 2,254 patents)


2 patents:

1. 7800386 - Contact device and method for producing the same

2. 6903637 - Connecting member, a micro-switch, a method for manufacturing a connecting member, and a method for manufacturing a micro-switch

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as of
1/14/2026
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