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Inventor

Keiichi Iwasaki

Inventor
Kanagawa, JP

Overview

16→
Patents
1990–2017
Patent span
Physics
Primary field (CPC G)

Patents· 16 as inventor

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

G06Fprimary
G06FElectric digital data processing17%
H04NPictorial communication, e.g. television17%
G11CStatic stores13%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses13%
G06KGraphical data reading8%
G09GArrangements or circuits for control of indicating devices using static means to present variable information8%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%
G02BOptical elements, systems or apparatus4%
G11BInformation storage based on relative movement between record carrier and transducer4%
H03KPulse technique4%
PatentTitleYear
9,813,068'Spread spectrum clock generator, electronic apparatus, and spread spectrum clock generation method'20179,396,789'Memory control device and a delay controller'20168,432,754'Memory control apparatus and mask timing adjusting method'20138,064,146'Image pickup apparatus'20117,698,484'Information processor configured to detect available space in a storage in another information processor'20107,671,919'Camera'20107,664,904'High speed serial switch fabric performing mapping of traffic classes onto virtual channels'20107,518,946'Memory control device'20097,161,854'Jitter and skew suppressing delay control apparatus'20075,970,602'Head actuator assembly and method for fabricating the same'19995,870,074'Image display control device, method and computer program product'19995,828,384'Image display control device, method and computer program product'19985,355,098'Phase-locked loop with memory storing control data controlling the oscillation frequency'19945,107,278'Image forming apparatus'19925,019,913'Recording apparatus having control data selectively designated in memory which corresponds to one of multiple optical scanning systems'19914,977,414'Image forming apparatus'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2010Patents assigned to RICOH KK (10)· patent assignee history
1990–1994Based in Suita, JP· patent location history
1998–2007Based in Yokohama, JP· patent location history
1999Patents assigned to IBM (1)· patent assignee history
1999Based in Fujisawa, JP· patent location history
2009–2017Based in Kanagawa, JP· patent location history
2010–2011Patents assigned to SONY CORP (2)· patent assignee history
2010–2011Based in Tokyo, JP· patent location history
2011–2017Patents assigned to IWASAKI KEIICHI (4)· patent assignee history
2013–2017Patents assigned to RICOH CO LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK101990–2010
IWASAKI KEIICHIself42011–2017
RICOH CO LTD32013–2017
SONY CORP22010–2011
IBM11999
Locations
LocationPatentsSpan
Kanagawa, JP62009–2017
Suita, JP41990–1994
Yokohama, JP31998–2007
Tokyo, JP22010–2011
Fujisawa, JP11999