Inventor
Minoru Tobita
Inventor
Tokyo, JP
Overview
Patents· 39 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 transducer70%
H03MCoding11%
H04LTransmission of digital information, e.g. telegraphic communication11%
G06FElectric digital data processing5%
G03HHolographic processes or apparatus2%
G06NComputing arrangements based on specific computational models2%
PatentTitleYear
8,223,619'Optical recording medium, reproduction apparatus, and tracking servo method'20127,626,912'Optical recording medium, reproduction apparatus and reproduction method'20097,554,900'Disc-shaped recording medium, method and apparatus for manufacturing same and data recording method'20097,355,929'Magneto-optical disk and recording and/or reproducing method and recording and/or reproducing apparatus using the magneto-optical disk'20087,263,708'Cartridge type recording medium, associated apparatus and methodology of disc detection'20077,256,718'Modulation apparatus and method'20077,224,656'Disc detection device and associated method'20077,110,328'Recording and reproducing apparatus for recording and reproducing information to and from a magneto-optical storage medium'20067,002,894'Disc-shaped recording medium, manufacturing method and manufacturing device thereof, and data recording method'20066,982,660'Modulation apparatus and method, and DSV-control-bit generating method'20066,965,329'Modulation apparatus and method, and DSV-control-bit generating method'20056,958,713'Modulation apparatus and method, and DSV-control-bit generating method'20056,950,042'Modulating apparatus and method, and DSV control bit producing method'20056,914,544'Modulation apparatus and method and DSV control bit generation method'20056,765,860'Optical disc and optical drive'20046,751,166'Phase error detection method for magnetic wall displacement type of magneto-optical recording device'20046,678,223'Frequency demodulating circuit, optical disk apparatus thereof and preformating device'20046,385,257'Frequency demodulating circuit, optical disk apparatus thereof and preformating device'20026,327,240'Optical disc and optical disc drive'20016,320,839'Optical information recording medium, optical information recording method and optical information recording apparatus'20016,310,851'Frequency demodulating circuit, optical disk apparatus thereof and preformating device'20016,282,162'Optical disc and optical disc driving device'20016,215,758'Recording medium'20016,128,272'Recording medium'20005,978,350'Optical disc and optical disc driving device'19995,812,512'Data reproducing apparatus which prohibits illegitimate access to data using an internal ID'19985,781,565'Data recording/reproducing method, data reproducing apparatus and recording medium'19985,761,171'Generating data detecting threshold levels from reference patterns recorded in an optical disk, such as a magneto-optical disk'19985,721,873'Data reproducing apparatus'19985,675,586'Record medium, and method for recording to and reproducing from a record medium'19975,654,948'Disc apparatus for recording/reproducing with zone constant angular velocity'19975,592,454'Data reproducing apparatus which replaces vendor unique identification data in response to a reference error correction rate which is lower than that used for replacement of other data'19975,506,827'Digital data reproducing apparatus'19965,469,415'Optical information recording or reproducing apparatus with asymmetry compensation'19955,469,420'Multi-value recorded data detecting method'19955,363,352'Magneto-optic disk apparatus'19945,295,130'Apparatus and method for signal reproduction'19945,151,905'Data recording method'19925,136,564'Pit pattern detecting apparatus and method'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2012Patents assigned to SONY CORP (39)· patent assignee history
1992–2012Based in Tokyo, JP· patent location history
1995Based in Shinagawa-ku, JP· patent location history
2001–2004Patents assigned to FUJITSU LTD (2)· patent assignee history
2001–2004Patents assigned to SANYO ELECTRIC CO (2)· patent assignee history
2001–2004Patents assigned to SHARP KK (2)· patent assignee history
2012Patents assigned to MOROTOMI SHIRO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 39 | 1992–2012 |
| FUJITSU LTD | 2 | 2001–2004 |
| SANYO ELECTRIC CO | 2 | 2001–2004 |
| SHARP KK | 2 | 2001–2004 |
| MOROTOMI SHIRO | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 38 | 1992–2012 |
| Shinagawa-ku, JP | 1 | 1995 |