Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9667159 | Power conversion apparatus including a transformer, an invertor circuit and a plurality of switching devices controlled by a controller | Keiji Akamatsu, Takaaki Norisada, Daisuke Fukuda, Goh Yamada | 2017-05-30 |
| 9543823 | Power conversion apparatus having a switching circuit unit that includes a switching device and an auxiliary switching device | Goh Yamada, Keiji Akamatsu, Daisuke Fukuda, Takaaki Norisada | 2017-01-10 |
| 9487098 | Power conversion apparatus | Goh Yamada, Takaaki Norisada, Hajime Hida, Keiji Akamatsu | 2016-11-08 |
| 9431917 | Switching power supply including a rectifier circuit having switching elements, and electric power converter | Goh Yamada, Daisuke Fukuda, Takaaki Norisada, Keiji Akamatsu | 2016-08-30 |
| D736773 | Optical scanner | — | 2015-08-18 |
| 7999766 | Plasma display panel driving method, plasma display panel driver circuit, and plasma display device | Takatoshi Shoji, Hiroshi Shirasawa | 2011-08-16 |
| 7355567 | Plasma display panel driving method, plasma display panel driver circuit, and plasma display device | Takatoshi Shoji, Hiroshi Shirasawa | 2008-04-08 |
| 5034137 | Method for treating muddy water | Jiro Hirano, Takusaburo Ohnishi | 1991-07-23 |
| 4810377 | Clarification device | Minoru Kato, Yukio Suzuki | 1989-03-07 |