KK

Keiji Koga

JS Japan Climate Systems: 2 patents #1 of 8Top 15%
Tdk: 2 patents #118 of 474Top 25%
Overall (2011): #25,538 of 364,097Top 8%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7991377 Mixer and frequency converting apparatus Yuji Kakinuma 2011-08-02
7973375 Spin transistor and method of manufacturing same 2011-07-05
7942192 Vehicle air conditioner Takehiro Yamamoto, Tadashi Okamoto, Hideaki Yasuda, Hiroshi Mayumi, Morihito Tsukuda +2 more 2011-05-17
7886814 Vehicle air conditioner Takehiro Yamamoto, Tadashi Okamoto, Hideaki Yasuda, Hiroshi Mayumi, Morihito Tsukuda +2 more 2011-02-15