Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9299818 | Insulating gate-type bipolar transistor | Tadaharu Minato | 2016-03-29 |
| 8482030 | Insulated gate bipolar transistor and manufacturing method thereof | Tadaharu Minato | 2013-07-09 |
| 7986003 | Semiconductor device and manufacturing method thereof | Hideki Takahashi, Yoshifumi Tomomatsu, Junichi Moritani | 2011-07-26 |
| 7750365 | Insulated gate bipolar transistor with built-in freewheeling diode | Hideki Takahashi | 2010-07-06 |
| 7400017 | Reverse conducting semiconductor device and a fabrication method thereof | Aya Yamamoto, Hideki Takahashi | 2008-07-15 |
| 7189620 | Semiconductor device including a channel stop structure and method of manufacturing the same | Hideki Takahashi | 2007-03-13 |
| 6909142 | Semiconductor device including a channel stop structure and method of manufacturing the same | Hideki Takahashi | 2005-06-21 |
| 6838744 | Semiconductor device and manufacturing method thereof | Hideki Takahashi | 2005-01-04 |
| 6177713 | Free wheel diode for preventing destruction of a field limiting innermost circumferential layer | Masana Harada | 2001-01-23 |
| 5850088 | Teg for carrier lifetime evaluation | — | 1998-12-15 |
| 5751023 | Semiconductor device and method of manufacturing the same | — | 1998-05-12 |
| 5738571 | Apparatus and method for forming ribs on a belt/belt sleeve | Koji Kitahama, Yuji Okiyoshi, Masahiko Kawashima, Osamu Miyajima | 1998-04-14 |
| 5382926 | Multiple bit loaded line phase shifter | Kazuhiko Nakahara | 1995-01-17 |