Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10365317 | Semiconductor element test apparatus and semiconductor element test method | Masanori Miyata | 2019-07-30 |
| 9209538 | Memory card connector | Kazuta Yoshida, Hidehiro Nakamura | 2015-12-08 |
| 8097901 | Semiconductor device having insulated gate semiconductor element, and insulated gate bipolar transistor | Masaki Koyama, Makoto Asai, Takeshi Fujii, Koh Yoshikawa | 2012-01-17 |
| 7977704 | Semiconductor device having insulated gate semiconductor element, and insulated gate bipolar transistor | Masaki Koyama, Makoto Asai, Takeshi Fujii, Koh Yoshikawa | 2011-07-12 |
| 7420246 | Vertical type semiconductor device and method for manufacturing the same | Shoji Ozoe, Tomofusa Shiga, Takaaki Aoki, Takeshi Fukazawa, Kimiharu Kayukawa | 2008-09-02 |
| 7064033 | Semiconductor device and method of manufacturing same | Masami Yamaoka, Akira Kuroyanagi | 2006-06-20 |
| 6974996 | Semiconductor device and method of manufacturing the same | Tomofusa Shiga, Takaaki Aoki | 2005-12-13 |
| 6949434 | Method of manufacturing a vertical semiconductor device | Masami Yamaoka, Akira Kuroyanagi | 2005-09-27 |
| 6903417 | Power semiconductor device | Masami Yamaoka, Akira Kuroyanagi | 2005-06-07 |
| 6817874 | Card connector device for ejecting card by slider | — | 2004-11-16 |
| 6649478 | Semiconductor device and method of manufacturing same | Masami Yamaoka, Akira Kuroyanagi | 2003-11-18 |
| 6603173 | Vertical type MOSFET | Yoshihiko Ozeki, Shigeki Takahashi, Norihito Tokura | 2003-08-05 |
| 6498366 | Semiconductor device that exhibits decreased contact resistance between substrate and drain electrode | Masami Yamaoka, Akira Kuroyanagi | 2002-12-24 |
| 6451645 | Method for manufacturing semiconductor device with power semiconductor element and diode | Yoshihiko Ozeki, Yutaka Tomatsu | 2002-09-17 |
| 6353196 | Water-resistant switching device | Akira Niinuma | 2002-03-05 |
| 6316300 | Method of manufacturing a semiconductor device having an oxidation process for selectively forming an oxide film | Yoshihiko Ozeki, Takeshi Fukazawa, Hisanori Yokura | 2001-11-13 |
| 6278155 | P-channel MOSFET semiconductor device having a low on resistance | Mitsuhiro Kataoka, Yutaka Tomatsu | 2001-08-21 |
| 6114207 | Method of producing a semiconductor device | Mitsuhiro Kataoka, Yutaka Tomatsu | 2000-09-05 |
| 5994187 | Method of manufacturing a vertical semiconductor device | Masami Yamaoka, Akira Kuroyanagi | 1999-11-30 |
| 5877527 | Semiconductor device and method of producing the same | Mitsuhiro Kataoka, Yutaka Tomatsu | 1999-03-02 |
| 5871659 | Dry etching process for semiconductor | Yoshikazu Sakano, Kenji Kondo, Hajime Soga, Yasuo Ishihara | 1999-02-16 |
| 5798550 | Vertical type semiconductor device and gate structure | Akira Kuroyanagi, Masami Yamaoka, Yasuaki Tsuzuki, Yutaka Tomatsu | 1998-08-25 |
| 5689130 | Vertical semiconductor device with ground surface providing a reduced ON resistance | Masami Yamaoka, Akira Kuroyanagi | 1997-11-18 |
| 5663096 | Method of manufacturing a vertical semiconductor device with ground surface providing a reduced ON resistance | Masami Yamaoka, Akira Kuroyanagi | 1997-09-02 |
| 5250449 | Vertical type semiconductor device and method for producing the same | Akira Kuroyanagi, Masami Yamaoka | 1993-10-05 |