Growing community of inventors

Furukawa, Japan

Takeshige Maruyama

Average Co-Inventor Count = 2.00

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 = 135

Takeshige MaruyamaSadayoshi Iwasaki (1 patent)Takeshige MaruyamaTakeshige Maruyama (1 patent)Sadayoshi IwasakiSadayoshi Iwasaki (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Alps Electric Co., Ltd. (1 from 4,048 patents)


1 patent:

1. 4382167 - Push-button switch

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1/22/2026
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