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Inventor

Akihiko Kougami

Inventor
Yokohama, JP

Overview

13→
Patents
1985–2004
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

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

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information63%
H03KPulse technique11%
H04NPictorial communication, e.g. television11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
G11BInformation storage based on relative movement between record carrier and transducer5%
PatentTitleYear
6,741,227'Color image display apparatus and method'20046,633,268'AC-type plasma display apparatus'20036,518,977'Color image display apparatus and method'20036,504,310'Display apparatus'20036,407,506'Display apparatus, display method and control-drive circuit for display apparatus'20026,333,766'Tone display method and apparatus for displaying image signal'20016,208,467'Display apparatus for displaying an image having gradation'20016,100,939'Tone display method and apparatus for displaying image signal'20006,028,573'Driving method and apparatus for display device'20006,014,258'Color image display apparatus and method'20006,008,687'Switching circuit and display device using the same'19994,799,058'Driving apparatus for a gas discharge display panel'19894,521,816'Magnetic recording method for digital signal'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to HITACHI ELECTRONICS (1)· patent assignee history
1985–2003Based in Kokubunji, JP· patent location history
1989–2004Patents assigned to HITACHI LTD (12)· patent assignee history
2000Patents assigned to KOHSAKU TODA (1)· patent assignee history
2000Patents assigned to SHIGEO MIKOSHIBA (1)· patent assignee history
2000–2004Based in Yokohama, JP· patent location history
2001Patents assigned to MIKOSHIBA SHIGEO (1)· patent assignee history
2002–2003Based in Akashi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD121989–2004
HITACHI ELECTRONICS11985
KOHSAKU TODA12000
MIKOSHIBA SHIGEO12001
SHIGEO MIKOSHIBA12000
Locations
LocationPatentsSpan
Yokohama, JP62000–2004
Kokubunji, JP51985–2003
Akashi, JP22002–2003