Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7462540 | Silicon carbide semiconductor device and process for producing the same | Kunimasa Takahashi, Makoto Kitabatake, Kenya Yamashita, Osamu Kusumoto, Ryoko Miyanaga | 2008-12-09 |
| 7436031 | Device for implementing an inverter having a reduced size | Makoto Kitabatake, Osamu Kusumoto, Kunimasa Takahashi, Kenya Yamashita, Ryoko Miyanaga +1 more | 2008-10-14 |
| 7381993 | High-breakdown-voltage insulated gate semiconductor device | Makoto Kitabatake, Osamu Kusumoto, Kenya Yamashita, Kunimasa Takahashi, Ryoko Miyanaga | 2008-06-03 |
| 7230273 | Semiconductor device with a plurality of semiconductor elements each including a wide band-gap semiconductor | Makoto Kitabatake, Osamu Kusumoto, Kunimasa Takahashi, Kenya Yamashita | 2007-06-12 |
| 7217954 | Silicon carbide semiconductor device and method for fabricating the same | Osamu Kusumoto, Makoto Kitabatake, Kunimasa Takahashi, Kenya Yamashita, Ryoko Miyanaga | 2007-05-15 |
| 7214984 | High-breakdown-voltage insulated gate semiconductor device | Makoto Kitabatake, Osamu Kusumoto, Kenya Yamashita, Kunimasa Takahashi, Ryoko Miyanaga | 2007-05-08 |
| 6995397 | Semiconductor device | Kenya Yamashita, Makoto Kitabatake, Osamu Kusumoto, Kunimasa Takahashi, Ryoko Miyanaga | 2006-02-07 |
| 6995396 | Semiconductor substrate, semiconductor device and method for fabricating the same | Kunimasa Takahashi, Makoto Kitabatake, Toshiya Yokogawa, Osamu Kusumoto, Kenya Yamashita +1 more | 2006-02-07 |
| 6940110 | SiC-MISFET and method for fabricating the same | Kunimasa Takahashi, Osamu Kusumoto, Makoto Kitabatake, Kenya Yamashita | 2005-09-06 |
| 6940127 | Equipment for communication system and semiconductor integrated circuit device | Toshiya Yokogawa, Kunimasa Takahashi, Makoto Kitabatake, Osamu Kusumoto | 2005-09-06 |
| 6900483 | Semiconductor device and method for manufacturing the same | Makoto Kitabatake, Toshiya Yokogawa, Osamu Kusumoto, Kunimasa Takahashi, Ryoko Miyanaga +1 more | 2005-05-31 |
| 6654604 | Equipment for communication system | Toshiya Yokogawa, Kunimasa Takahashi, Makoto Kitabatake, Osamu Kusumoto | 2003-11-25 |
| 6600203 | Semiconductor device with silicon carbide suppression layer for preventing extension of micropipe | Kunimasa Takahashi, Toshiya Yokogawa, Makoto Kitabatake, Osamu Kusumoto, Kenya Yamashita | 2003-07-29 |
| 6580125 | Semiconductor device and method for fabricating the same | Makoto Kitabatake, Toshiya Yokogawa, Osamu Kusumoto, Kunimasa Takahashi, Kenya Yamashita | 2003-06-17 |
| 6577386 | Method and apparatus for activating semiconductor impurities | Akihisa Yoshida, Masatoshi Kitagawa, Makoto Kitabatake, Tsuneo Mitsuyu | 2003-06-10 |
| 6504176 | Field effect transistor and method of manufacturing the same | Makoto Kitabatake, Toshiya Yokogawa, Osamu Kusumoto, Kunimasa Takahashi | 2003-01-07 |
| 6306211 | Method for growing semiconductor film and method for fabricating semiconductor device | Kunimasa Takahashi, Makoto Kitabatake, Toshiya Yokogawa | 2001-10-23 |
| 6270573 | Silicon carbide substrate, and method for producing the substrate, and semiconductor device utilizing the substrate | Makoto Kitabatake, Kunimasa Takahashi | 2001-08-07 |
| 6255201 | Method and device for activating semiconductor impurities | Akihisa Yoshida, Masatoshi Kitagawa, Makoto Kitabatake, Tsuneo Mitsuyu | 2001-07-03 |
| 6228720 | Method for making insulated-gate semiconductor element | Makoto Kitabatake, Kunimasa Takahashi, Takeshi Uenoyama | 2001-05-08 |
| 5984752 | Electron emission cathode; an electron emission device, a flat display, a thermoelectric cooling device incorporating the same; and a method for producing the electron emission cathode | Hiroyoshi Tanaka, Koichi Kotera | 1999-11-16 |
| 5777427 | Electron emission cathode having a semiconductor film; a device including the cathode; and a method for making the cathode | Hiroyoshi Tanaka, Koichi Kotera | 1998-07-07 |
| 4497720 | Method for treating metallic or ceramic surfaces at high temperatures | Hiroyuki Moriga, Koichi Iwashita, Shuji Tanaka | 1985-02-05 |