AO

Akitomo Oba

NE Nec: 1 patents #225 of 1,182Top 20%
Overall (1997): #179,765 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5659531 Optical head device and birefringent diffraction grating polarizer and polarizing hologram element used therein Yuzo Ono 1997-08-19