Semiconductor device and method for manufacturing the same
US-2026068290-A1 · Mar 5, 2026 · US
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Sumitomo Masakiyo patents
Sumitomo Masakiyo is listed as an inventor on 33 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Sumitomo Masakiyo |
| Total patents | 33 |
| First publication | Feb 12, 2015 |
| Latest publication | Mar 5, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Semiconductor device
US-2026047183-A1 · Feb 12, 2026 · US
Semiconductor device
US-12414358-B2 · Sep 9, 2025 · US
Semiconductor device
US-12283593-B2 · Apr 22, 2025 · US
Semiconductor device
US-2023027536-A1 · Jan 26, 2023 · US
Semiconductor device
US-2022415884-A1 · Dec 29, 2022 · US
Semiconductor device including carrier injection layers
US-11289476-B2 · Mar 29, 2022 · US
Power converter with switching elements, control circuit having speed adjustment resistor, and feedback route
US-10848078-B2 · Nov 24, 2020 · US
Semiconductor device
US-10763345-B2 · Sep 1, 2020 · US
Semiconductor device
US-10748988-B2 · Aug 18, 2020 · US
Recent patents
Latest publications not already listed above.
Semiconductor device
US-10720518-B2 · Jul 21, 2020 · US
Semiconductor device
US-2020227406-A1 · Jul 16, 2020 · US
Power converter
US-2020036297-A1 · Jan 30, 2020 · US
Semiconductor device
US-2019333987-A1 · Oct 31, 2019 · US
Semiconductor device and manufacturing method of the same
US-10388773-B2 · Aug 20, 2019 · US
Semiconductor device
US-2019252534-A1 · Aug 15, 2019 · US
Semiconductor device
US-2019214491-A1 · Jul 11, 2019 · US
Semiconductor device
US-10224322-B2 · Mar 5, 2019 · US
Semiconductor device
US-10186606-B2 · Jan 22, 2019 · US
Semiconductor device
US-10103255-B2 · Oct 16, 2018 · US
Semiconductor device
US-2018151558-A1 · May 31, 2018 · US
Semiconductor device
US-2018019331-A1 · Jan 18, 2018 · US
Semiconductor device
US-2017352747-A1 · Dec 7, 2017 · US
Semiconductor device and manufacturing method of the same
US-2017250269-A1 · Aug 31, 2017 · US
Semiconductor device having switching element and free wheel diode and method for controlling the same
US-9515067-B2 · Dec 6, 2016 · US
Semiconductor device
US-9324848-B2 · Apr 26, 2016 · US
Trench-gate-type insulated gate bipolar transistor
US-9231090-B2 · Jan 5, 2016 · US
Load-short-circuit-tolerant semiconductor device having trench gates
US-9178050-B2 · Nov 3, 2015 · US
Semiconductor device
US-2015129927-A1 · May 14, 2015 · US
Semiconductor device and manufacturing method of the same
US-2015115314-A1 · Apr 30, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Denso Corp | 33 |
| Higuchi Yasushi | 1 |
| Fukatsu Shigemitsu | 1 |
| Sumitomo Masakiyo | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H10D12/481 | 31 |
| H01L29/7397 | 26 |
| H10D62/393 | 23 |
| H10D62/142 | 20 |
| H10D64/513 | 18 |