SY

Sadahiko Yokoyama

NE Nec: 8 patents #1,742 of 14,502Top 15%
Overall (All Time): #663,541 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6522149 Method and apparatus for identifying plastics Takaaki Matsushima 2003-02-18
6290919 Electrostatic separating apparatus Masao Shimoda, Masatoshi Iji, Tokukazu Kiji 2001-09-18
6244445 Moisturizing equipment Masao Shimoda, Tokukazu Kiji 2001-06-12
5801358 Method for disintegrating joined structure with high frequency fields Masatoshi Iji 1998-09-01
5780536 Joining member and method for disintegrating joined structure Masatoshi Iji 1998-07-14
5743936 Method of recovering valuables from printed wiring board having electronic components mounted thereon Masatoshi Iji 1998-04-28
5715592 Parts disassembling apparatus Eiichi Mori, Masatoshi Iji, Yuji Ikuta 1998-02-10
5676318 Method of recovering valuable substances from printed circuit board Masatoshi Iji 1997-10-14