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Yutaka Yokoyama

Ngk Spark Plug Co.: 2 patents #38 of 203Top 20%
SU Subaru: 1 patents #23 of 120Top 20%
Overall (2017): #52,397 of 506,227Top 15%
3
Patents 2017

Issued Patents 2017

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9755404 Spark plug Jumpei Isasa, Haruki Yoshida, Kuniharu Tanaka, Nobuyoshi Araki, Toshiki Kon 2017-09-05
9653888 Spark plug Kuniharu Tanaka, Katsuya Takaoka, Shun Kondo, Nobuyoshi Araki, Toshiki Kon +6 more 2017-05-16
9614197 Onboard battery Isao Nakagawa, Toshiyuki Hara 2017-04-04