Inventor
OTSUKI MOTOHIKO
JP6 patents
Patents
6 patentsUS6356398B1Mar 12, 2002
Lens having diaphragm structure at outer edge portion on incident side thereof and optical unit using same
ALPS ELECTRIC CO LTD24 citations90
US6167184ADec 26, 2000
Optical fiber fixing device for optically coupling optical fiber with optical communication module
ALPS ELECTRIC CO LTD10 citations72
US6935136B2Aug 30, 2005
Method for fabrication of optical element having metal ring
ALPS ELECTRIC CO LTD6 citations60
US6560389B2May 6, 2003
Beam-splitting/coupling apparatus having frame holding optical filter
ALPS ELECTRIC CO LTD3 citations60
US7742245B2Jun 22, 2010
Lens unit
ALPS ELECTRIC CO LTD0 citations50
US7292399B2Nov 6, 2007
Method for fabricating metal ring-fitted optical device, and metal ring-fitted optical device
ALPS ELECTRIC CO LTD0 citations39