Inventor
OOHASHI MASAKAZU
JP3 patents
Patents
3 patentsUS7346258B2Mar 18, 2008
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
FUJIKURA LTD5 citations72
US7711238B2May 4, 2010
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
FUJIKURA LTD1 citations61
US7406236B2Jul 29, 2008
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
FUJIKURA LTD4 citations61