| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 20 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Watanabe Kenzo | 20 |
| #2 | Nakamura Zenzo | 3 |
| #3 | Ogata Kazunari | 1 |
| #4 | Oisugi Yutaka | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2013046563A | Charger of portable electronic apparatus | |
| JP2012095513A | Dc/dc converter | |
| JP2010142098A | Charger for mobile electronic equipment | |
| JP2010119071A | Collector tuning oscillator | |
| JP2009200022A | Primary/secondary common battery storage device | |
| JP2009131143A | Charging device for portable electronic apparatus | |
| JP2008312426A | Charging device for secondary battery | |
| JP2008301694A | Method for driving transistor bridge and circuit of the same | |
| JP2008288179A | Lighting control method and control circuit of light-emitting diode | |
| JP2008185576A | Current detector circuit | |
| JP2008182794A | Dc-dc converter | |
| JP2008029089A | Switching power supply | |
| JP2007143382A | Charge control circuit for secondary battery | |
| JP2007135382A | Method for controlling charging of secondary battery | |
| JP2007129885A | Charger for mobile phone | |
| JP2007104884A | Motor driving device | |
| JP2007053885A | Voltage resonance switching power supply | |
| JP2007019444A | Solar cell equipment | |
| JP2007014180A | Dc power supply unit | |
| JP2007011244A | Piezo-electric buzzer device |