YO

Yasuhiko Ogawa

UN Unknown: 2 patents #12,644 of 83,584Top 20%
Ngk Spark Plug Co.: 1 patents #959 of 1,594Top 65%
Overall (All Time): #4,007,713 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4633121 Comb-shaped piezoelectric drive device Kazuhiko Nakayama, Minoru Yasuda 1986-12-30