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Inventor

Yukinari Ueki

Inventor
Yokohama, JP

Overview

4→
Patents
1988–2013
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits25%
G11BInformation storage based on relative movement between record carrier and transducer13%
H03FAmplifiers13%
H03GControl of amplification13%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses13%
H04NPictorial communication, e.g. television13%
H05KPrinted circuits13%
PatentTitleYear
8,589,964'Cooling arrangement for an optical pick-up'20134,994,915'Aperture correction circuit'19914,782,246'Phase shift circuit for electrical signal'19884,748,422'Amplifier circuit suitable for use as an active filter circuit'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1991Patents assigned to HITACHI LTD (3)· patent assignee history
1988–1991Based in Yokohama, JP· patent location history
2013Patents assigned to HITACHI MEDIA ELECTRON KK (1)· patent assignee history
2013Patents assigned to ICHIKAWA FUMIHITO (1)· patent assignee history
2013Patents assigned to KUSANO YOSHITAKA (1)· patent assignee history
2013Patents assigned to OCHI MANABU (1)· patent assignee history
2013Based in Fujisawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31988–1991
HITACHI MEDIA ELECTRON KK12013
ICHIKAWA FUMIHITO12013
KUSANO YOSHITAKA12013
OCHI MANABU12013
Locations
LocationPatentsSpan
Yokohama, JP31988–1991
Fujisawa, JP12013