Inventor
Kouji Minabe
Inventor
Hitachiota, JP
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer57%
H04NPictorial communication, e.g. television37%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
8,040,768'Information recording apparatus'20117,940,616'Optical disk apparatus and tilt control method thereof'20117,424,200'Information recording apparatus and information recording method'20087,269,112'Information recording apparatus'20077,227,825'Signal recording/reproducing apparatus with improved power consumption'20077,116,620'System and method for controlling recording state transitions in an information recording apparatus'20067,050,699'Recording/reproducing apparatus and reproducing apparatus'20066,771,574'Disk device, read control method for management information in disk device, and data processing terminal device using that disk device'20046,504,992'Video signal reproducing apparatus and video signal display apparatus'20036,459,541'Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecting tape end and reduce load on microprocessor'20026,263,151'Recording/reproducing apparatus and reproducing apparatus'20016,141,172'Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecting tape end and reduce load on microprocessor'20006,104,567'Recording and reproducing apparatus including a tracking apparatus with a steady speed deviation circuit'20006,021,016'Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecting tape end and reduce load on microprocessor'20005,956,461'Camcorder and controller'19995,930,274'Information recording and reproduction apparatus to be controlled by temporal information'19995,760,988'Tracking method and apparatus used in helical scan magnetic recording/reproducing system'19985,699,206'Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecting tape end and reduce load on microprocessor'19975,699,370'Information recording and reproduction apparatus to be controlled by temporal information'19975,617,266'Motor stabilizing control apparatus for use with motors, including for use with a drum motor in a magnetic tape system'19975,559,414'Control unit of direct-current motor'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2011Patents assigned to HITACHI LTD (20)· patent assignee history
1996–2011Based in Hitachinaka, JP· patent location history
1997–2000Based in Katsuta, JP· patent location history
2001–2011Based in Hitachiota, JP· patent location history
2007Patents assigned to HITACHI VIDEO & INF SYST (1)· patent assignee history
2008Based in Hitachiohta, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 20 | 1996–2011 |
| HITACHI VIDEO & INF SYST | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachiota, JP | 8 | 2001–2011 |
| Hitachinaka, JP | 7 | 1996–2011 |
| Katsuta, JP | 5 | 1997–2000 |
| Hitachiohta, JP | 1 | 2008 |