HS

Hisaharu Shiromizu

Ngk Spark Plug Co.: 4 patents #450 of 1,594Top 30%
📍 Ebeye: #1,032 of 4,528 inventorsTop 25%
Overall (All Time): #1,062,287 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4943470 Ceramic substrate for electrical devices Asao Morikawa, Tsuneyuki Sukegawa, Kazuo Kondo 1990-07-24
4810528 Process for producing multilayer circuit board Kazuo Kondo, Asao Morikawa, Tsuneyuki Sukegawa 1989-03-07
4672503 Electric field forming apparatus Senichi Masuda, Isamu Fukuura, Naotoshi Morita 1987-06-09
4666679 Ceramic ozonizer Senichi Masuda, Isamu Fukuura 1987-05-19
4381198 Ceramic metallizing ink Masaru Kondo, Yoshio Ieda 1983-04-26