SO

Sohei Okamoto

PA Panasonic: 5 patents #5,165 of 21,108Top 25%
IS Isekikaihatsukohki: 2 patents #6 of 37Top 20%
ID Idec: 1 patents #21 of 45Top 50%
Pioneer: 1 patents #1,107 of 1,730Top 65%
Overall (All Time): #569,649 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
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