Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10848048 | Slope compensation with adaptive slope | — | 2020-11-24 |
| 10720839 | System and method for operating a switching converter in light load | Kohei Yamada, Naoyuki Unno | 2020-07-21 |
| 10340935 | Thermometer digital to analog converter | Seiichi Ozawa | 2019-07-02 |
| 9893623 | Windowless H-bridge buck-boost switching converter | — | 2018-02-13 |
| 9065337 | Inductor current emulation circuit for a switching converter | Kenji Tomiyoshi | 2015-06-23 |
| 9041363 | Windowless H-bridge buck-boost switching converter | — | 2015-05-26 |
| 7782030 | Step-down converter | Takashi Ryu, Takuya Ishii, Naoyuki Nakamura | 2010-08-24 |
| 7764113 | Output circuit | Takashi Ryu, Takuya Ishii, Naoyuki Nakamura | 2010-07-27 |
| 7714562 | Hysteretic switching regulator | Richard Oswald, Tamotsu Yamamoto, Takashi Ryu, Masaaki Koto | 2010-05-11 |
| 7574618 | Interface circuit | George Fukutomi, Shinji Hiratsuka, Hirofumi Odaguchi | 2009-08-11 |
| 7482789 | Step-up converter | Mikio Motomori, Takuya Ishii, Takashi Ryu, Hiroki Akashi, Makoto Ishimaru +1 more | 2009-01-27 |
| 7479771 | Current detection circuit and switching power supply | Takashi Ryu, Takuya Ishii, Mikio Motomori, Tomoya Shigemi | 2009-01-20 |
| 7391199 | DC-DC converter | Hiroki Akashi, Takashi Ryu, Takuya Ishii, Mikio Motomori, Makoto Ishimaru +1 more | 2008-06-24 |
| 7323850 | Current detection circuit and switching power supply using the same | Takashi Ryu, Takuya Ishii, Mikio Motomori, Tomoya Shigemi | 2008-01-29 |
| 7294994 | Power supply | Takashi Ryu, Takuya Ishii, Mikio Motomori, Hiroki Akashi, Makoto Ishimaru +1 more | 2007-11-13 |
| 7285944 | DC-DC converter | Takuya Ishii, Takashi Ryu, Masaaki Koto | 2007-10-23 |
| 7081741 | Multi-output power supply and electronic device using them | Takuya Ishii, Takashi Ryu, Mikio Motomori, Masato Yoshida, Kazuhito Kimura +1 more | 2006-07-25 |
| 7075275 | DC-DC converter | Mikio Motomori, Takuya Ishii, Takashi Ryu, Hiroki Akashi, Makoto Ishimaru +1 more | 2006-07-11 |