Inventor
Masatoshi Ohtake
Inventor
Ome, JP
Overview
Patents· 26 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 transducer71%
B82YSpecific uses or applications of nanostructures3%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%
G01QScanning-probe techniques or apparatus3%
G07FCoin-freed or like apparatus3%
G11CStatic stores3%
H02JElectric power networks3%
H04JMultiplex communication3%
H04NPictorial communication, e.g. television3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
7,911,910'Information recording method and apparatus with suppressed mark edge jitters'20117,907,490'Information recording method and apparatus with suppressed mark edge jitters'20117,907,491'Information recording method and apparatus with suppressed mark edge jitters'20117,852,727'Information recording method and apparatus with suppressed mark edge jitters'20107,684,301'Information recording method and apparatus with suppressed mark edge jitters'20107,417,933'Information recording method and apparatus with suppressed mark edge jitters'20087,042,823'Information recording method and apparatus with suppressed mark edge jitters'20067,012,871'Information recording method and apparatus with suppressed mark edge jitters'20066,842,415'Information recording method and apparatus with suppressed mark edge jitters'20056,608,806'Information recording method and apparatus with suppressed mark edge jitters'20036,529,467'Information recording method and apparatus with suppressed mark edge jitters'20036,343,056'Information recording method and apparatus with suppressed mark edge jitters'20026,282,611'Digital information system, digital audio signal processor and signal converter'20016,236,635'Information recording method and apparatus with suppressed mark edge jitters'20015,594,680'Noise reduced contactless parallel data transfer device and method thereof'19975,086,438'Signal generating and receiving apparatuses based on synchronous transfer mode'19925,001,409'Surface metrological apparatus'19914,949,325'Method and associated apparatus and medium for optical recording and reproducing information'19904,872,152'Light spot position control system and method by sampled servo'19894,866,688'Composite tracking servo system for optical disc apparatus with track offset correction'19894,847,822'Optical information recording and reproducing apparatus with tracking control by sampling'19894,785,442'Light spot position control system and method by sampling servo'19884,759,628'Wavelength scanning interferometry and interferometer employing laser diode'19884,748,609'Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset'19884,707,816'Method and apparatus for composite wobbled and push-pull tracking servo system'19874,199,820'Random access storage apparatus with a movable recording medium'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2011Patents assigned to HITACHI LTD (25)· patent assignee history
1980Based in Hachioji, JP· patent location history
1987–2011Based in Ome, JP· patent location history
1992Patents assigned to ANRITSU CORP (1)· patent assignee history
1992Based in Isehara, JP· patent location history
1997Patents assigned to HITACHI MAXELL (1)· patent assignee history
1997Based in Oume, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 25 | 1980–2011 |
| ANRITSU CORP | 1 | 1992 |
| HITACHI MAXELL | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ome, JP | 23 | 1987–2011 |
| Oume, JP | 1 | 1997 |
| Isehara, JP | 1 | 1992 |
| Hachioji, JP | 1 | 1980 |