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Mariko Doi — 1 Patent

Hitachi: 1 patents #17,777 of 28,497Top 65%

Tokyo, JP: #57,845 of 90,295 inventorsTop 65%

Overall (All Time): #2,406,284 of 4,157,543Top 60%

1 Patents All Time

Mariko Doi has been granted 1 US patent while listed as an inventor at Hitachi. All of these patents were granted in 2014. Mariko Doi ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Mariko Doi in Tokyo, JP.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
8744240	Video distribution system, information providing device, and video information providing method for distributing video to a plurality of receiving terminals	Daisuke Aso, Kaoru Konishi, Naohisa Seko, Kazumi Matsumoto, Asako MIYAMOTO	2014-06-03

Mariko Doi — 1 Patent

Issued Patents All Time

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