KS

Kohji Sakai

Ricoh Company: 78 patents #66 of 9,818Top 1%
Sharp Kabushiki Kaisha: 3 patents #4,164 of 10,731Top 40%
AD Advantest: 1 patents #714 of 1,193Top 60%
RC Rioch Company: 1 patents #1 of 30Top 4%
Overall (All Time): #21,132 of 4,157,543Top 1%
83
Patents All Time

Issued Patents All Time

Showing 76–83 of 83 patents

Patent #TitleCo-InventorsDate
6348989 Scanning image forming lens and optical scanning apparatus Magane Aoki 2002-02-19
6347004 Optical scanning apparatus and scanning image forming lens Seizo Suzuki, Magane Aoki 2002-02-12
6288819 Scanning image forming lens and optical scanning apparatus Maga Aoki 2001-09-11
6256133 Optical scanning apparatus Seizo Suzuki, Magane Aoki 2001-07-03
6229638 Optical scanning apparatus capable of reducing variations in shading and improving light usage Yoshinori Hayashi 2001-05-08
6166842 Scanning image forming lens and optical scanning apparatus Magane Aoki 2000-12-26
5999345 Multi-beam light source unit Tomohiro Nakajima 1999-12-07
5831758 Multi-beam optical scanner Magane Aoki 1998-11-03