Inventor
Ryutaro Horita
Inventor
Yokohama, JP
Overview
Patents· 22 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 transducer43%
H04LTransmission of digital information, e.g. telegraphic communication18%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses14%
H03KPulse technique12%
H03HImpedance networks, e.g. resonant circuits6%
H03MCoding6%
PatentTitleYear
7,430,085'Disk device and method of generating signal representing head'20087,139,143'Disk device and method of generating signal representing head'20066,563,656'Disk device and method of generating signal representing head'20036,445,522'Disk device and method of generating signal representing head'20026,266,200'Magnetic disk storage apparatus'20016,172,828'Signal processing apparatus and a disk control apparatus, with head positioning control based on digitized servo data'20015,999,353'Magnetic disk storage apparatus with phase sync circuit having controllable response characteristic'19995,937,020'Digital information signal reproducing circuit and digital information system'19995,878,097'Signal processing delay circuit'19995,745,066'AD converter and magnetic recording/regenerating apparatus using thereof'19985,636,254'Signal processing delay circuit'19975,633,766'Magnetic disk storage apparatus with phase sync circuit having controllable response characteristics'19975,572,163'Active filter control apparatus'19965,559,645'Disk recording apparatus with adaptive window adjusting'19965,557,274'Ad converter and magnetic recording/regenerating apparatus using the same'19965,475,715'Sync data introduction method and system'19955,463,504'Magnetic disk system and waveform equalizer therefor'19955,404,250'Magnetic disk storage apparatus with phase sync circuit having controllable response characteristic'19955,402,274'Data separator and signal processing circuit with an adjustable window'19955,222,002'Semiconductor integrated circuit which performs phase synchronization'19935,187,615'Data separator and signal processing circuit'19935,062,011'Address mark generating method and its circuit in a data memory'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2006Patents assigned to HITACHI LTD (21)· patent assignee history
1991Patents assigned to HITACHI MICROCUMPUTER ENG (1)· patent assignee history
1991–2008Based in Yokohama, JP· patent location history
2008Patents assigned to HITACHI GLOBAL STORAGE TECH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 21 | 1991–2006 |
| HITACHI GLOBAL STORAGE TECH | 1 | 2008 |
| HITACHI MICROCUMPUTER ENG | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 22 | 1991–2008 |