KU

Kazuhiro Umeki

Ricoh Company: 1 patents #810 of 1,683Top 50%
Overall (2011): #248,609 of 364,097Top 70%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7894133 Optical element and optical device Hideaki Hirai, Yoshiyuki Kiyosawa, Yasuhiro Fujimura 2011-02-22