Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9496345 | Semiconductor structure, semiconductor device, and method for producing semiconductor structure | Kazutoshi Kojima, Shiyang Ji, Tetsuya Miyazawa, Hidekazu Tsuchida, Koji Nakayama +1 more | 2016-11-15 |
| 7960257 | Silicon carbide semiconductor device and manufacturing method therefor | Koji Nakayama, Yoshitaka Sugawara, Hidekazu Tsuchida, Isaho Kamata, Toshiyuki Miyanagi +1 more | 2011-06-14 |
| 7960737 | Silicon carbide semiconductor device and manufacturing method therefor | Koji Nakayama, Yoshitaka Sugawara, Hidekazu Tsuchida, Isaho Kamata, Toshiyuki Miyanagi +1 more | 2011-06-14 |
| 7960738 | Silicon carbide semiconductor device and manufacturing method therefor | Koji Nakayama, Yoshitaka Sugawara, Hidekazu Tsuchida, Isaho Kamata, Toshiyuki Miyanagi +1 more | 2011-06-14 |
| 7768017 | Silicon carbide semiconductor device and manufacturing method therefor | Koji Nakayama, Yoshitaka Sugawara, Hidekazu Tsuchida, Isaho Kamata, Toshiyuki Miyanagi +1 more | 2010-08-03 |
| 7626232 | Voltage-controlled semiconductor device | Yoshitaka Sugawara | 2009-12-01 |
| 7570502 | Inverter apparatus comprising switching elements | Yoshitaka Sugawara, Mitsuru Matsukawa, Yoshifumi Minowa, Toshihiko Shikata | 2009-08-04 |
| 6600192 | Vertical field-effect semiconductor device with buried gate region | Yoshitaka Sugawara | 2003-07-29 |
| 6342709 | Insulated gate semiconductor device | Yoshitaka Sugawara | 2002-01-29 |