Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11463085 | Semiconductor integrated circuit | — | 2022-10-04 |
| 10075070 | Step-down DC/DC converter | Takeru Matsuki | 2018-09-11 |
| 9768687 | Step-down DC/DC converter | Takeru Matsuki | 2017-09-19 |
| 9583952 | Shunt circuit, charging system and integrated circuit | — | 2017-02-28 |
| 9529054 | Detecting disconnection fault in device monitoring circuit connected in multiple stages for battery cells connected in series | Jun Maede | 2016-12-27 |
| 9484773 | Energy harvesting apparatus and energy harvesting system | Jun Maede | 2016-11-01 |
| 9368980 | Battery control circuit | Jun Maede | 2016-06-14 |
| 8639959 | Semiconductor apparatus having a controller arranged to turn on a first switch and turn off a second switch during a period in which a judgement unit judges a device type of a device | — | 2014-01-28 |
| 8362748 | Voltage comparison circuit | Yutaka Shibata | 2013-01-29 |
| 8350408 | Power management circuit | Yutaka Shibata, Akihito Ito | 2013-01-08 |
| 7754960 | Electronic equipment synchronously controlling light emission from light emitting devices and audio control | Isao Yamamoto | 2010-07-13 |
| 7542182 | Image pickup apparatus with light emission control adapted for light-receiving characteristics | Isao Yamamoto, Takahiro Ota | 2009-06-02 |
| 7479822 | Current drive circuit reducing VDS dependency | Isao Yamamoto | 2009-01-20 |
| 7423626 | Light-emission control circuit | Isao Yamamoto | 2008-09-09 |
| 7391406 | Light emission control circuit uniformly and non-uniformly controlling a plurality of light-emitting elements | Isao Yamamoto | 2008-06-24 |
| 7385642 | Camera portable telephone including LEDs used for both a camera flash and call notification of an incoming call | Isao Yamamoto | 2008-06-10 |
| 7372322 | Current drive circuit reducing VDS dependency | Isao Yamamoto | 2008-05-13 |
| 7321257 | Semiconductor device capable of detecting an open bonding wire using weak current | Isao Yamamoto | 2008-01-22 |
| 7230474 | Current drive circuit reducing VDS dependency | Isao Yamamoto | 2007-06-12 |
| 7009830 | Semiconductor integrated circuit device | Isao Yamamoto | 2006-03-07 |
| 6897638 | Stabilized power supply unit having a current limiting function | Hiroyuki Ishikawa | 2005-05-24 |
| 6822428 | Stabilized power supply unit having a current limiting function | Hiroyuki Ishikawa | 2004-11-23 |
| 6687107 | Semiconductor integrated circuit device | Isao Yamamoto | 2004-02-03 |