Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8970136 | Semiconductor light source lighting circuit and vehicular lamp | Satoshi Kikuchi, Takanori Namba, Masayasu Ito, Daijiro Arisawa | 2015-03-03 |
| 8004256 | Current limiting circuit | Katsuyuki Tabata | 2011-08-23 |
| 7994757 | DC-DC converter | Takuya Ishii | 2011-08-09 |
| 7852059 | Power supply device | Takuya Ishii, Kazuhito Kimura, Yoichi Deguchi, Satoshi Wada, Yoshihisa Minami | 2010-12-14 |
| 7825646 | Step-up converter | Takuya Ishii, Junichi Morita, Takashi Ryu, Masaaki Koto, Makoto Ishimaru +2 more | 2010-11-02 |
| 7586212 | Multi-output power supply apparatus | Junichi Morita, Takuya Ishii | 2009-09-08 |
| 7567069 | Step-up power supply device | Takashi Ryu, Takuya Ishii, Kazuhito Kimura, Satoshi Wada, Rumi Nakai | 2009-07-28 |
| 7538531 | Drive circuit and switching regulator comprising the same | Takuya Ishii | 2009-05-26 |
| 7482789 | Step-up converter | Takuya Ishii, Takashi Ryu, Hiroki Akashi, Hirohisa Tanabe, Makoto Ishimaru +1 more | 2009-01-27 |
| 7479771 | Current detection circuit and switching power supply | Takashi Ryu, Takuya Ishii, Hirohisa Tanabe, Tomoya Shigemi | 2009-01-20 |
| 7391199 | DC-DC converter | Hiroki Akashi, Takashi Ryu, Takuya Ishii, Hirohisa Tanabe, Makoto Ishimaru +1 more | 2008-06-24 |
| 7355830 | Overcurrent protection device | — | 2008-04-08 |
| 7323850 | Current detection circuit and switching power supply using the same | Takashi Ryu, Takuya Ishii, Hirohisa Tanabe, Tomoya Shigemi | 2008-01-29 |
| 7294994 | Power supply | Takashi Ryu, Takuya Ishii, Hiroki Akashi, Hirohisa Tanabe, Makoto Ishimaru +1 more | 2007-11-13 |
| 7282900 | Performance controller for a step down current mode switching regulator | Richard Oswald, Tamotsu Yamamoto, Takashi Ryu, Takuya Ishii | 2007-10-16 |
| 7268525 | Buck-boost converter | Takuya Ishii, Masato Yoshida, Jun Hara | 2007-09-11 |
| 7126318 | Higher order slope compensation for fixed frequency current mode switching regulators | Richard Oswald, Tamotsu Yamamoto | 2006-10-24 |
| 7081741 | Multi-output power supply and electronic device using them | Takuya Ishii, Takashi Ryu, Hirohisa Tanabe, Masato Yoshida, Kazuhito Kimura +1 more | 2006-07-25 |
| 7075275 | DC-DC converter | Takuya Ishii, Takashi Ryu, Hiroki Akashi, Hirohisa Tanabe, Makoto Ishimaru +1 more | 2006-07-11 |