Eri Maruyama — 3 Patents at Hitachi

Eri Maruyama has been granted 3 US patents while listed as an inventor at Hitachi. The first was granted in 2014 and the most recent in August 2019. Eri Maruyama ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Eri Maruyama in Tokyo, JP.

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Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
10371144	Linear motor, compressor equipped with linear motor and equipment equipped with linear motor	Yasuaki Aoyama, Takahiro Suzuki	2019-08-06
9748887	Permanent magnet synchronous motor and winding-switching motor driving device, and refrigeration air conditioner and electric vehicle using same	Yasuo Notohara, Wataru Hatsuse, Ryouichi TAKAHATA	2017-08-29
8834267	Avatar useable in multiple games that changes appearance according to the game being played	Takahiro Fujii, Haruko Yamazaki, Hiroshi Harada, Toshiaki Tarumi, Ryosuke Tamura	2014-09-16

Eri Maruyama — 3 Patents

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