Inventor
MARUTANI MASAZUMI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “MARUTANI MASAZUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
8 patentsUS7388416B2Jun 17, 2008
Latch circuit, 4-phase clock generator, and receiving circuit
FUJITSU LTD27 citations91
US7324758B2Jan 29, 2008
Optical dispersion monitoring apparatus and optical dispersion monitoring method, and optical transmission system using same
FUJITSU LTD14 citations83
US7187217B2Mar 6, 2007
Clock frequency divider and trigger signal generation circuit for same
FUJITSU LTD10 citations82
US7027741B2Apr 11, 2006
Phase lock loop circuit and optical repeating apparatus, optical terminal apparatus, and optical communication system having the same
FUJITSU LTD7 citations73
US7965808B2Jun 21, 2011
Frequency dividing device
FUJITSU LTD6 citations61
US7795925B2Sep 14, 2010
Phase difference detector and phase difference detection method
FUJITSU LTD6 citations61
US7750747B2Jul 6, 2010
Clock selection circuit and synthesizer
FUJITSU LTD3 citations61
US9019017B2Apr 28, 2015
Digitally controlled oscillator and digital PLL including the same
FUJITSU LTD1 citations50