Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8969920 | Vertical GaN-based semiconductor device | Makoto Kiyama, Yu Saitoh, Masaya Okada, Masaki Ueno, Kazutaka Inoue +1 more | 2015-03-03 |
| 8941174 | Semiconductor device and method for producing the same | Masaya Okada, Makoto Kiyama, Yu Saitoh, Mitsunori Yokoyama, Kazutaka Inoue | 2015-01-27 |
| 8896058 | Semiconductor device and method for producing same | Masaya Okada, Makoto Kiyama, Yu Saitoh, Mitsunori Yokoyama, Kazutaka Inoue | 2014-11-25 |
| 8890239 | Semiconductor device and method for producing the same | Makoto Kiyama, Mitsunori Yokoyama, Kazutaka Inoue, Masaya Okada, Yu Saitoh | 2014-11-18 |
| 8816398 | Semiconductor device and method for producing the same | Makoto Kiyama, Yu Saitoh, Masaya Okada, Kazutaka Inoue, Mitsunori Yokoyama | 2014-08-26 |
| 8748274 | Method for fabricating semiconductor device | Ken Nakata | 2014-06-10 |
| 8525184 | Semiconductor device and method for manufacturing same | Masaya Okada, Makato Kiyama, Ken Nakata | 2013-09-03 |
| 8227810 | Semiconductor device and method for manufacturing same | Masaya Okada, Makoto Kiyama, Ken Nakata | 2012-07-24 |
| 8044433 | GaN-based high electron mobility transistor (HEMT) with an embedded gate electrode having a first recess portion and a second recess portion to improve drain breakdown voltage | Takeshi Kawasaki, Ken Nakata | 2011-10-25 |
| 7728353 | Semiconductor device in which GaN-based semiconductor layer is selectively formed | Takeshi Kawasaki, Ken Nakata | 2010-06-01 |
| 7723751 | Semiconductor device and fabrication method of the same | Takeshi Kawasaki, Ken Nakata | 2010-05-25 |
| 7592647 | Semiconductor device and manufacturing method thereof | Ken Nakata, Takeshi Kawasaki | 2009-09-22 |
| 6784064 | Heterojunction bipolar transistor and method of making heterojunction bipolar transistor | Kenji Kotani, Masaki Yanagisawa, Hiroshi Yano | 2004-08-31 |
| 6664610 | Bipolar transistor and the method of manufacturing the same | Takeshi Kawasaki, Kenji Kotani, Masaki Yanagisawa, Hiroshi Yano | 2003-12-16 |
| 6531722 | Bipolar transistor | Kenji Kotani, Masaki Yanagisawa, Hiroshi Yano | 2003-03-11 |
| 5537278 | Thin film laminate magnetic head with reaction prevention layers | Kiyoshi Ogino, Hideo Segawa | 1996-07-16 |
| 5306696 | Method of producing YBa.sub.2 Cu.sub.4 O.sub.x -type superconducting metal oxides | Hirohiko Murakami, Junya Nishino, Yu Shiohara, Shoji Tanaka | 1994-04-26 |
| 5236890 | Method of producing superconductor of metal oxides | Hirohiko Murakami, Junya Nishino, Yu Shiohara, Shoji Tanaka | 1993-08-17 |