Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7301181 | Heterojunction bipolar transistor having an emitter layer made of a semiconductor material including aluminum | Keiichi Murayama, Akiyoshi Tamura | 2007-11-27 |
| 7228110 | Low cost high frequency device having compact mounting area, high frequency amplification method, wireless communication device and mobile telephone including low cost and high frequency circuit having compact mounting area | — | 2007-06-05 |
| 7081799 | Bipolar transistor, oscillation circuit, and voltage controlled oscillator | Kazuhiro Arai, Yasuyuki Toyoda, Shinichi Sonetaka | 2006-07-25 |
| 6974751 | Semiconductor device and method for producing the same | — | 2005-12-13 |
| 6940357 | Bipolar transistor, for voltage controlled oscillator using a capacitance adjustment line | Kazuhiro Arai, Yasuyuki Toyoda, Shinichi Sonetaka | 2005-09-06 |
| 6838709 | Bipolar transistor | Shinichi Sonetaka, Yasuyuki Toyoda, Kazuhiro Arai | 2005-01-04 |
| 6770912 | Semiconductor device and method for producing the same | — | 2004-08-03 |
| 6710380 | Diode, method for fabricating the diode, and coplanar waveguide | Junko Iwanaga, Mitsuru Tanabe | 2004-03-23 |
| 6555900 | Package, semiconductor device and method for fabricating the semiconductor device | Shigeru Morimoto, Masahiro Maeda | 2003-04-29 |
| 6429471 | Compound semiconductor field effect transistor and method for the fabrication thereof | Takahiro Yokoyama, Hidetoshi Ishida, Daisuke Ueda | 2002-08-06 |
| 6417527 | Diode, method for fabricating the diode, and coplanar waveguide | Junko Iwanaga, Mitsuru Tanabe | 2002-07-09 |
| 6274889 | Method for forming ohmic electrode, and semiconductor device | Hiroyuki Masato, Yasuhito Kumabuchi, Makoto Kitabatake | 2001-08-14 |
| 6110813 | Method for forming an ohmic electrode | Hiroyuki Masato, Yasuhito Kumabuchi, Makoto Kitabatake | 2000-08-29 |
| 5925903 | Field-effect transistors and method of manufacturing the same | Junko Iwanaga, Tadayoshi Nakatsuka, Hiroyuki Masato, Katsuhiko Kawashima | 1999-07-20 |
| 5905277 | Field-effect transistor and method of manufacturing the same | Hiroyuki Masato, Shigeru Morimoto, Junko Iwanaga | 1999-05-18 |
| 5901042 | Package and semiconductor device | Masahiro Maeda, Shigeru Morimoto, Morio Nakamura | 1999-05-04 |
| 5824575 | Semiconductor device and method of manufacturing the same | Hiromasa Fujimoto, Hiroyuki Masato, Tomoya Uda | 1998-10-20 |
| 5736901 | Radio frequency amplifier with stable operation and restrained oscillation at low frequencies | Morio Nakamura, Masahiro Maeda | 1998-04-07 |
| 5585655 | Field-effect transistor and method of manufacturing the same | Katsunori Nishii, Mitsuru Nishitsuji, Hiroyuki Masato, Hiromasa Fujimoto | 1996-12-17 |
| 5510758 | Multilayer microstrip wiring board with a semiconductor device mounted thereon via bumps | Suguru Fujita, Kazuaki Takahashi, Morikazu Sagawa, Hiroyuki Sakai, Kaoru Inoue | 1996-04-23 |
| 5446309 | Semiconductor device including a first chip having an active element and a second chip having a passive element | Chinatsu Adachi, Masaaki Nishijima, Osamu Ishikawa | 1995-08-29 |
| 5166081 | Method of producing a bipolar transistor | Masanori Inada, Kazuo Eda, Atsushi Nakagawa, Manabu Yanagihara | 1992-11-24 |
| 5147775 | Method of fabricating a high-frequency bipolar transistor | Masanori Inada, Manabu Yanagihara | 1992-09-15 |
| 5037769 | Method of manufacturing semiconductor device | Masanori Inada, Kazuo Eda | 1991-08-06 |
| 4965650 | Bipolar transistor and method of producing the same | Masanori Inada, Kazuo Eda, Atsushi Nakagawa, Manabu Yanagihara | 1990-10-23 |