Inventor
Akira Tsukihashi
Inventor
Gunma, JP
Overview
Patents· 30 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 transducer84%
G06FElectric digital data processing3%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters3%
H03FAmplifiers3%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses3%
H04BTransmission3%
PatentTitleYear
7,796,495'Optical disk'20107,529,172'Optical disk recording and playback device'20097,365,296'Light reception output controlling apparatus of photo detector in optical pickup unit'20087,184,379'Optical disk recording/reproducing method and apparatus in which recording properties of the disk are detected when recording speed is changed'20077,149,167'Data recorder'20067,149,164'Optical disc apparatus for processing data according to different optical disc standards to achieve higher recording density'20067,149,165'Controller for data recorder'20067,102,974'Optical head optical output setting method and optical disk recording apparatus'20067,099,246'Method and apparatus for recording data on an optical disc with restarting writing of data after data recording interruption'20067,068,571'Optical recording apparatus and control method thereof'20067,020,060'Disc recording apparatus and disc'20067,000,134'Controlling the maximum rotation speed of a disk drive device based on the presence of an external power source and the possibility of a buffer underrun'20066,992,957'Controller of data recorder'20066,980,497'Optical disk recording apparatus and control method thereof'20056,958,961'Data processing circuit for temporarily suspending data recording onto a disk'20056,775,211'System and method for disk recording'20046,728,802'Control method of optical disk recording/reproducing apparatus'20046,587,416'Disk recording apparatus for controlling interruption of data and securing interleave length of first and last blocks of data after start and release of recording interruption'20036,587,422'Disk recording device for overwriting data on a defined recording region'20036,584,053'Disk recording system'20036,560,180'Disk storage device'20036,496,458'Synchronized disk recording device having speed variation with recording condition'20026,430,127'Disk player for performing data reproduction recorded on a disk'20025,841,742'Optical disk unit using a single demodulator circuit for demodulating two disk players'19985,802,026'Disk player for constant angular velocity reproduction of a disk'19985,777,955'Signal processing circuit for an optical disk player including data decoding based on a regenerated bit clock'19985,610,887'Error correcting apparatus with error corecting signal holding function'19975,511,095'Audio signal coding and decoding device'19965,054,015'Tape recorder with disc player'19914,427,931'Speed control apparatus for direct current motor'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2010Patents assigned to SANYO ELECTRIC CO (30)· patent assignee history
1984Patents assigned to TOKYO SANYO ELECTRIC CO (1)· patent assignee history
1991–2008Based in Gunma, JP· patent location history
1996Based in Oizumi-machi, JP· patent location history
1998–2007Based in Ohra-gun, JP· patent location history
2006Based in Guma, JP· patent location history
2009–2010Based in Ora-gun, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SANYO ELECTRIC CO | 30 | 1984–2010 |
| TOKYO SANYO ELECTRIC CO | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gunma, JP | 18 | 1991–2008 |
| Ohra-gun, JP | 7 | 1998–2007 |
| Ora-gun, JP | 2 | 2009–2010 |
| Guma, JP | 1 | 2006 |
| Oizumi-machi, JP | 1 | 1996 |