SO

Seiji Ohya

Ngk Spark Plug Co.: 2 patents #703 of 1,594Top 45%
OS Osg: 1 patents #49 of 119Top 45%
Overall (All Time): #1,539,443 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8377274 Gas sensor and method for manufacturing the same Tomohiro Wakazono, Kenji Kato, Koji Shiotani 2013-02-19
8118985 Gas sensor Tomohiro Wakazono, Takashi Nakao, Hisashi Sasaki, Koji Shiotani 2012-02-21
4860497 Drill grinder having drill holder including chucks for gripping shank and body of the drill Tetsuro Harada 1989-08-29