Inventor
Kinji Kayanuma
Inventor
Tokyo, JP
Overview
Patents· 13 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 transducer76%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses12%
H03DDemodulation or transference of modulation from one carrier to another6%
H03MCoding6%
PatentTitleYear
8,644,122'Header region evaluation circuit, optical disk apparatus, and header region evaluation method'20148,310,905'Wobble signal extracting circuit, method for extracting wobble signal, and optical disk unit'20128,023,382'Information reproduction apparatus and information reproduction method'20117,817,528'Optical disk medium and optical disk apparatus'20107,738,326'Signal processing method of wobble signal, recording and reproducing method of optical disc, optical disc apparatus, program, and recording medium'20107,680,235'VCO circuit, PLL circuit using VCO circuit, and data recording apparatus the PLL circuit'20107,492,696'Optical disk medium and optical disk apparatus'20097,305,044'Data modulation method and apparatus'20077,196,984'Optical disk medium and optical disk recording and reproducing apparatus'20077,072,264'VCO with phase modulated output'20066,861,965'Code modulating method and code modulating apparatus, demodulating method and demodulating apparatus, and information recording medium'20056,341,109'Defective area replacement method and information writing/reading device'20025,561,647'System for detection of readout signals from optical disc'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2010Patents assigned to NEC CORP (10)· patent assignee history
1996–2010Based in Tokyo, JP· patent location history
2005–2010Patents assigned to TOSHIBA KK (3)· patent assignee history
2010Patents assigned to NEC ELECTRONICS CORP (1)· patent assignee history
2011–2014Patents assigned to RENESAS ELECTRONICS CORP (3)· patent assignee history
2011–2014Based in Kanagawa, JP· patent location history
2012–2014Patents assigned to KAYANUMA KINJI (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NEC CORP | 10 | 1996–2010 |
| RENESAS ELECTRONICS CORP | 3 | 2011–2014 |
| TOSHIBA KK | 3 | 2005–2010 |
| KAYANUMA KINJIself | 2 | 2012–2014 |
| NEC ELECTRONICS CORP | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 10 | 1996–2010 |
| Kanagawa, JP | 3 | 2011–2014 |