Growing community of inventors

Katsuta, Japan

Harumi Maruyama

Average Co-Inventor Count = 7.00

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 = 10

Harumi MaruyamaYasuo Morooka (1 patent)Harumi MaruyamaYasunori Katayama (1 patent)Harumi MaruyamaYutaka Saito (1 patent)Harumi MaruyamaItsuo Shimizu (1 patent)Harumi MaruyamaTaiko Takano (1 patent)Harumi MaruyamaHarumi Maruyama (1 patent)Yasuo MorookaYasuo Morooka (63 patents)Yasunori KatayamaYasunori Katayama (20 patents)Yutaka SaitoYutaka Saito (16 patents)Itsuo ShimizuItsuo Shimizu (2 patents)Taiko TakanoTaiko Takano (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,488 patents)


1 patent:

1. 5375448 - Non-interference control method and device

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as of
12/9/2025
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