Kumada; Keishirou

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kumada; Keishirou.The latest application filed is for "semiconductor device".

Company Profile

13.11.12

Kumada; Keishirou - Matsumoto JP
Kumada; Keishirou - Nagano JP
KUMADA; Keishirou - Matsumoto-city JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Silicon carbide semiconductor device having a step film formed between a plating film and a first electrode Grant 11,245,013 - Hashizume , et al. February 8, 2	2022-02-08
Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device Grant 11,145,724 - Kumada , et al. October 12, 2	2021-10-12
Semiconductor device Grant 11,121,248 - Suzuki , et al. September 14, 2	2021-09-14
Semiconductor device and method of manufacturing semiconductor device Grant 10,991,821 - Hoshi , et al. April 27, 2	2021-04-27
Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device Grant 10,930,775 - Hoshi , et al. February 23, 2	2021-02-23
Semiconductor device and method of manufacturing semiconductor device Grant 10,868,168 - Hashizume , et al. December 15, 2	2020-12-15
Semiconductor device and semiconductor circuit device Grant 10,818,789 - Kumada , et al. October 27, 2	2020-10-27
Silicon carbide semiconductor device and method of manufacturing a silicon carbide semiconductor device Grant 10,658,465 - Hoshi , et al.	2020-05-19
Semiconductor device Grant 10,559,514 - Hashizume , et al. Feb	2020-02-11
Semiconductor Device App 20200020797 - SUZUKI; Yoshihisa ; et al.	2020-01-16
Semiconductor Device And Semiconductor Circuit Device App 20200020800 - KUMADA; Keishirou ; et al.	2020-01-16
Silicon Carbide Semiconductor Device And Method Of Manufacturing Silicon Carbide Semiconductor Device App 20200020796 - HOSHI; Yasuyuki ; et al.	2020-01-16
Silicon Carbide Semiconductor Device And Method Of Manufacturing Silicon Carbide Semiconductor Device App 20190386106 - KUMADA; Keishirou ; et al.	2019-12-19
Semiconductor Device App 20190371932 - HASHIZUME; Yuichi ; et al.	2019-12-05
Semiconductor device with lifetime killers and method of manufacturing the same Grant 10,347,735 - Kumada , et al. July 9, 2	2019-07-09
Semiconductor Device And Method Of Manufacturing Semiconductor Device App 20190131444 - HASHIZUME; Yuichi ; et al.	2019-05-02
Semiconductor Device And Method Of Manufacturing Semiconductor Device App 20190131443 - HOSHI; Yasuyuki ; et al.	2019-05-02
Semiconductor Device App 20190109065 - HASHIZUME; Yuichi ; et al.	2019-04-11
Silicon Carbide Semiconductor Device And Method Of Manufacturing A Silicon Carbide Semiconductor Device App 20190074359 - Hashizume; Yuichi ; et al.	2019-03-07
Silicon Carbide Semiconductor Device And Method Of Manufacturing A Silicon Carbide Semiconductor Device App 20190043957 - HOSHI; Yasuyuki ; et al.	2019-02-07
Semiconductor Device With Lifetime Killers And Method Of Manufacturing The Same App 20180233564 - KUMADA; Keishirou ; et al.	2018-08-16
Trench MOS semiconductor device Grant 9,748,370 - Kumada August 29, 2	2017-08-29
Trench Mos Semiconductor Device App 20150270387 - KUMADA; Keishirou	2015-09-24

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