Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8446215 | Constant voltage circuit | Toshihisa Nagata, Kohji Yoshii | 2013-05-21 |
| 8415811 | Semiconductor package and electronic component package | Keiji Fukumura, Hironobu Agari, Kazuhiko Suzuki | 2013-04-09 |
| 8004254 | Power supply circuit | Kohiji Yoshii | 2011-08-23 |
| 7856253 | Power supply IC having switching regulator and series regulator | Kohji Yoshii | 2010-12-21 |
| 7741818 | Voltage regulator including an output unit for converting input voltage into a predetermined voltage and for outputting the converted voltage | — | 2010-06-22 |
| 7709899 | Semiconductor apparatus | Kohji Yoshii, Tsugunori Okuda | 2010-05-04 |
| 7579817 | Constant-voltage circuit capable of reducing time required for starting, semiconductor apparatus including constant-voltage circuit, and control method of constant-voltage circuit | Yohichi Sakai | 2009-08-25 |
| 7550955 | Power supply circuit | — | 2009-06-23 |
| 7362078 | Power supply circuit | — | 2008-04-22 |
| 7215180 | Constant voltage circuit | Toshihisa Nagata, Kohji Yoshii | 2007-05-08 |
| 7209770 | Power supply IC having switching regulator and series regulator | Kohji Yoshii | 2007-04-24 |
| 7148665 | Power supplying methods and apparatus that provide stable output voltage | Hirohisa Abe, Kohji Yoshii | 2006-12-12 |
| 7002329 | Voltage regulator using two operational amplifiers in current consumption | Kohji Yoshii | 2006-02-21 |