YI

Yohzoh Ishimura

Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
📍 Kashihara, JP: #73 of 287 inventorsTop 30%
Overall (All Time): #1,044,975 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6449178 Magnetron drive step-up transformer and transformer of magnetron drive power supply Shinichi Sakai, Makoto Mihara, Kazuho Sakamoto, Toyotsugu Matsukura 2002-09-10
4794218 Door assembly for microwave heating apparatus Okihiko Nakano 1988-12-27
4742201 Door assembly for microwave heating apparatus Okihiko Nakano 1988-05-03
4663508 Combination thermal and mechanical safety switch for microwave heating oven Okihiko Nakano, Toyotsugu Matsukura, Toshiaki Kanaoka 1987-05-05
4461940 Fail-safe device for use in a heating apparatus 1984-07-24