LexDanaLexDanabeta
Inventor

Masazumi Marutani

Inventor
Kawasaki, JP

Overview

9→
Patents
2006–2015
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Kprimary
H03KPulse technique27%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses27%
H04BTransmission13%
G01RMeasuring electric variables7%
G06GAnalogue computers7%
H03DDemodulation or transference of modulation from one carrier to another7%
H03JTuning resonant circuits7%
H04LTransmission of digital information, e.g. telegraphic communication7%
PatentTitleYear
9,019,017'Digitally controlled oscillator and digital PLL including the same'20158,432,193'Divider and mixer circuit having the same'20137,965,808'Frequency dividing device'20117,795,925'Phase difference detector and phase difference detection method'20107,750,747'Clock selection circuit and synthesizer'20107,388,416'Latch circuit, 4-phase clock generator, and receiving circuit'20087,324,758'Optical dispersion monitoring apparatus and optical dispersion monitoring method, and optical transmission system using same'20087,187,217'Clock frequency divider and trigger signal generation circuit for same'20077,027,741'Phase lock loop circuit and optical repeating apparatus, optical terminal apparatus, and optical communication system having the same'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2015Patents assigned to FUJITSU LTD (8)· patent assignee history
2006Based in Kawaski, JP· patent location history
2007–2011Based in Kawasaki, JP· patent location history
2013–2015Patents assigned to FUJITSU SEMICONDUCTOR LTD (2)· patent assignee history
2013Patents assigned to MARUTANI MASAZUMI (1)· patent assignee history
2013–2015Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD82006–2015
FUJITSU SEMICONDUCTOR LTD22013–2015
MARUTANI MASAZUMIself12013
Locations
LocationPatentsSpan
Kawasaki, JP62007–2011
Yokohama, JP22013–2015
Kawaski, JP12006