Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11659309 | Display apparatus | Hiroshi Yoshioka, Hideyuki Taguchi, Hiroki Matsuoka, Shinpei Kondo | 2023-05-23 |
| 11356759 | Display apparatus | Hiroshi Yoshioka, Hideyuki Taguchi, Hiroki Matsuoka, Shinpei Kondo | 2022-06-07 |
| 11115740 | Flat panel speaker and display unit | Hiroki Matsuoka, Hideyuki Taguchi, Hiroshi Yoshioka, Shinpei Kondo | 2021-09-07 |
| 7528662 | Signal amplification apparatus and signal amplification method | Takahiro Noda, Manabu Yamanaka, Takashi Takano | 2009-05-05 |
| 7492218 | Digital amplifier apparatus and method of resetting a digital amplifier apparatus | Yusuke Yamamoto, Arihiro Moroboshi | 2009-02-17 |
| 7432760 | Digital amplifier apparatus and method of muting digital amplifier apparatus | Yusuke Yamamoto, Arihiro Moroboshi | 2008-10-07 |
| 7315209 | Power amplifier apparatus and DC component removing method | Takuro Akiyama | 2008-01-01 |
| 7221297 | D/A converter and output amplifying circuit | Kazunobu Ohkuri | 2007-05-22 |
| 7209002 | Audio amplifier | Kazunobu Ohkuri | 2007-04-24 |
| 7132884 | Power amplification device | Kazunobu Ohkuri | 2006-11-07 |
| 6917242 | Power amplifier | Kazunobu Ohkuri | 2005-07-12 |
| 6812785 | Digital power amplifier and digital/analog converter | Takashi Shima | 2004-11-02 |
| 6795004 | Delta-sigma modulation apparatus and signal amplification apparatus | Kazunobu Ohkuri | 2004-09-21 |
| 6734725 | Power amplifier | Kazunobu Ohkuri | 2004-05-11 |
| 6586991 | Digital power amplifier | Kazunobu Ohkuri | 2003-07-01 |
| 6388598 | D/A converter | — | 2002-05-14 |
| 6362765 | D/A converter | — | 2002-03-26 |
| 6304200 | Digital/analog conversion apparatus and reproduction apparatus | — | 2001-10-16 |
| 6281824 | Digital to analog converter using constant current sources | — | 2001-08-28 |
| 6075473 | Multibit digital to analog converter having deglitch means with current switching | — | 2000-06-13 |
| 5952535 | Selective catalytic conversion of a C.sub.9 aromatic feedstock containing substantial amounts of ethyl substituted aromatic components to a product rich in toluene and/or xylenes | David L. King, Eric G. Derouane, Jacques C. DeDeken, Shinji Nishikawa, Hiroshi Fujii +1 more | 1999-09-14 |
| 5618206 | Waterproof connector having a connector housing with a plurality of terminal accommodation chambers and a seal hood | Yoshitsugu Sawada | 1997-04-08 |
| 5457255 | Catalysts for hydrogenolytic dealkylation and use thereof | Fumio Kumata, Iwao Ueda | 1995-10-10 |
| 5343197 | Digital-to-analog converter | Takashi Kanai | 1994-08-30 |
| 5230636 | Terminal protection type connector | Hiroshi Yamamoto, Hitoshi Sakai | 1993-07-27 |