Inventor
MINAKAWA YOSHIAKI
JP5 patents
Patents
5 patentsUS7619836B2Nov 17, 2009
Imaging lens unit
HITACHI MAXELL5 citations71
US7446958B2Nov 4, 2008
Imaging lens unit
HITACHI MAXELL6 citations71
US7389050B2Jun 17, 2008
Wavelength multiplexer/demultiplexing device
HITACHI MAXELL3 citations60
US7079322B2Jul 18, 2006
Wavelength division multiplexer
HITACHI MAXELL5 citations60
US7755998B2Jul 13, 2010
Optical pickup system, optical head, optical disk apparatus, and objective lens
HITACHI MAXELL2 citations59