KK

Keishirou Kumada

FC Fuji Electric Co.: 13 patents #162 of 2,643Top 7%
Overall (All Time): #362,441 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12272728 Silicon carbide semiconductor device 2025-04-08
11876131 Semiconductor device Yuichi HASHIZUME, Yoshihisa Suzuki, Yasuyuki Hoshi 2024-01-16
11245013 Silicon carbide semiconductor device having a step film formed between a plating film and a first electrode Yuichi HASHIZUME, Yasuyuki Hoshi 2022-02-08
11145724 Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device Yuichi HASHIZUME, Yasuyuki Hoshi, Yoshihisa Suzuki 2021-10-12
11121248 Semiconductor device Yoshihisa Suzuki, Yasuyuki Hoshi, Yuichi HASHIZUME 2021-09-14
10991821 Semiconductor device and method of manufacturing semiconductor device Yasuyuki Hoshi, Yuichi HASHIZUME 2021-04-27
10930775 Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device Yasuyuki Hoshi, Yuichi HASHIZUME 2021-02-23
10868168 Semiconductor device and method of manufacturing semiconductor device Yuichi HASHIZUME, Yasuyuki Hoshi 2020-12-15
10818789 Semiconductor device and semiconductor circuit device Yasuyuki Hoshi, Yoshihisa Suzuki, Yuichi HASHIZUME 2020-10-27
10658465 Silicon carbide semiconductor device and method of manufacturing a silicon carbide semiconductor device Yasuyuki Hoshi, Yuichi HASHIZUME 2020-05-19
10559514 Semiconductor device Yuichi HASHIZUME, Yoshihisa Suzuki, Yasuyuki Hoshi 2020-02-11
10347735 Semiconductor device with lifetime killers and method of manufacturing the same Yuichi HASHIZUME, Yasuyuki Hoshi 2019-07-09
9748370 Trench MOS semiconductor device 2017-08-29