Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489909 | Method and apparatus for improving S/N ratio in digital-to-analog conversion of pulse density modulated (PDM) signal | Shigetoshi Nakao | 2002-12-03 |
| 6469648 | Digital-to analog-converting method and digital-to analog converter employing common weight generating elements | Shigetoshi Nakao | 2002-10-22 |
| 5977895 | Waveform shaping circuit for function circuit and high order delta sigma modulator | Toshio Murota | 1999-11-02 |
| 5905427 | Integrated circuit resistor array | Hitoshi Terasawa, Toshio Murota, Keiji Matsuki | 1999-05-18 |
| 5856799 | Rotation system for correction of weighting element errors in digital-to-analog converter | Yoshiaki Shinohara, Toshio Murota, Ei-ichi Arihara, Kyoji Matsusako | 1999-01-05 |
| 5815051 | Differential filter circuit and integrated circuit structure therefor | Hitoshi Terasawa, Toshio Murota | 1998-09-29 |
| 5694065 | Switching control circuitry for low noise CMOS inverter | Yoshiaki Shinohara, Toshio Murota, Ei-ichi Arihara | 1997-12-02 |
| 5682162 | Oversampling digital-to-analog converter with auto-muting feature | Yoshiaki Shinohara | 1997-10-28 |
| 5250448 | Method of fabricating a miniaturized heterojunction bipolar transistor | Hideki Satake | 1993-10-05 |
| 5175603 | Bipolar transistor | — | 1992-12-29 |
| 5094964 | Method for manufacturing a bipolar semiconductor device | — | 1992-03-10 |
| 5083033 | Method of depositing an insulating film and a focusing ion beam apparatus | Haruki Komano, Tadahiro Takigawa | 1992-01-21 |
| 4996581 | Bipolar transistor | — | 1991-02-26 |
| 4968635 | Method of forming emitter of a bipolar transistor in monocrystallized film | — | 1990-11-06 |
| 4830972 | Method of manufacturing bipolar transistor | — | 1989-05-16 |
| 4746803 | Method of forming a single crystal semiconductor layer from a non-single-crystalline material and apparatus for forming the same | Tomoyasu Inoue, Hiroyuki Tango, Kyoichi Suguro, Iwao Higashinakagawa | 1988-05-24 |
| 4662949 | Method of forming a single crystal semiconductor layer from a non-single crystalline material by a shaped energy beam | Tomoyasu Inoue, Hiroyuki Tango, Kyoichi Suguro, Iwao Higashinakagawa | 1987-05-05 |