Inventor · disambiguated record
Akira Mashimo
Also filed as: MASHIMO AKIRA
89 granted patents·4 pending applications·851 citations·filing 1986–2021
99Inventor score
Top patents by PatentIndex Score
93 records- 0191US4766502AInformation signal recording apparatusTEAC CORP·Filed 1987·Granted Aug 23, 1988·46 cites·9 claims
- 0290US5442608ADisk apparatus having a power consumption reducing mechanismMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Aug 15, 1995·54 cites·16 claims
- 0390US5278815ADigital data reproducing apparatusTEAC CORP·Filed 1991·Granted Jan 11, 1994·61 cites·13 claims
- 0486US5602812AReproducing rate control apparatus for optical diskTEAC CORP·Filed 1995·Granted Feb 11, 1997·49 cites·10 claims
- 0585US6489861B2Antenna duplexer with divided and grounded transmission lineOKI ELECTRIC IND CO LTD·Filed 2001·Granted Dec 3, 2002·28 cites·9 claims
- 0683US7355947B2Optical disk device and optical diskTEAC CORP·Filed 2005·Granted Apr 8, 2008·5 cites·7 claims
- 0782US5521895AOptical disk reproducing apparatus for controlling the rotational speed of a spindle motor between a CLV control and a CAV controlTEAC CORP·Filed 1995·Granted May 28, 1996·40 cites·11 claims
- 0881US7570570B2Optical disk driveTEAC CORP·Filed 2006·Granted Aug 4, 2009·4 cites·11 claims
- 0981US6670831B2Signal processing circuit and method for measuring pulse width under existence of chattering noiseTEAC CORP·Filed 2002·Granted Dec 30, 2003·22 cites·9 claims
- 1080US6711108B2Optical disc recording apparatus and mediumTEAC CORP·Filed 2002·Granted Mar 23, 2004·19 cites·2 claims
- 1179US6778478B2Optical disk recording apparatus and method of recording data on optical diskTEAC CORP·Filed 2001·Granted Aug 17, 2004·14 cites·24 claims
- 1278US7483353B2Optical disk deviceTEAC CORP·Filed 2005·Granted Jan 27, 2009·3 cites·23 claims
- 1378US4813034AOptical disc recording apparatus with a light beam having a controllable quantityTEAC CORP·Filed 1987·Granted Mar 14, 1989·23 cites·5 claims
- 1477US6438077B1Optical disk unitTEAC CORP·Filed 2000·Granted Aug 20, 2002·11 cites·9 claims
- 1575US6794922B2Signal processing circuit integrating pulse widths of an input pulse signal according to polaritiesTEAC CORP·Filed 2002·Granted Sep 21, 2004·17 cites·18 claims
- 1674US7599262B2Optical disk apparatusTEAC CORP·Filed 2006·Granted Oct 6, 2009·2 cites·11 claims
- 1773US6904009B2Optical disk apparatusTEAC CORP·Filed 2002·Granted Jun 7, 2005·9 cites·18 claims
- 1873US5177727ARotary recording medium having a guide track and recording and reproducing apparatus thereforTEAC CORP·Filed 1990·Granted Jan 5, 1993·20 cites·7 claims
- 1972US6954709B2Signal processing circuit outputting a signal representing the number of times an input signal rises in a predetermined period as a signal corresponding to a quality of the input signalTEAC CORP·Filed 2002·Granted Oct 11, 2005·8 cites·12 claims
- 2071US7242653B2Optical disc apparatus capable of detecting recording characteristics based on a predetermined signal prerecorded and reproducedTEAC CORP·Filed 2001·Granted Jul 10, 2007·8 cites·18 claims
- 2171US5717679ASystem for noise-free detection of wobbles of optical disk pregroovesTEAC CORP·Filed 1996·Granted Feb 10, 1998·24 cites·7 claims
- 2271US5015973ADuplexer with an isolating circuit on a dielectric plateOKI ELECTRIC IND CO LTD·Filed 1988·Granted May 14, 1991·20 cites·15 claims
- 2368US12350377B2Preparation containing 6,7-unsaturated-7-carbamoyl morphinan derivativesSHIONOGI & CO·Filed 2021·Granted Jul 8, 2025·0 cites·1 claims
- 2468US6680892B2Optical disk device offsetting a wobble signal component superimposed on an RF signal and the wobble signal component added in a threshold value upon making the RF signal binaryTEAC CORP·Filed 2001·Granted Jan 20, 2004·6 cites·5 claims
- 2568US5124675ALC-type dielectric filterELECTRIC INDUSTRY CO LTD·Filed 1990·Granted Jun 23, 1992·23 cites·3 claims
- 2667US7697405B2Inspection apparatus for optical disk having phase modulated wobble tracks and optical disk apparatus for driving the optical diskTEAC COPORATION·Filed 2005·Granted Apr 13, 2010·2 cites·8 claims
- 2767US6987719B2Optical disk deviceTEAC CORP·Filed 2002·Granted Jan 17, 2006·6 cites·3 claims
- 2867US6956805B2Signal processing circuit and method for extracting superimposed signal with accuracyTEAC CORP·Filed 2002·Granted Oct 18, 2005·6 cites·31 claims
- 2967US5535183AOptical disk reproducing device and its seek operation methodTEAC CORP·Filed 1994·Granted Jul 9, 1996·16 cites·4 claims
- 3066US9427402B2Preparation for improving solubility of poorly soluble drugSAKUMA SATOSHI·Filed 2011·Granted Aug 30, 2016·1 cites·20 claims
- 3166US4891615ADielectric filter with attenuation poleOKI ELECTRIC IND CO LTD·Filed 1988·Granted Jan 2, 1990·17 cites·22 claims
- 3265US6990056B2Optical disk deviceTEAC CORP·Filed 2002·Granted Jan 24, 2006·5 cites·8 claims
- 3364US10952968B2Preparation containing 6,7-unsaturated-7-carbamoyl morphinan derivativesSHIONOGI & CO·Filed 2013·Granted Mar 23, 2021·0 cites·13 claims
- 3464US7245571B2Optical disk drive that can adjust erase power during writing operationTEAC CORP·Filed 2002·Granted Jul 17, 2007·5 cites·4 claims
- 3564US6999388B2Optical disk apparatusTEAC CORP·Filed 2002·Granted Feb 14, 2006·7 cites·6 claims
- 3664US6738325B2Optical disk unit capable of reducing tracking offsetTEAC CORP·Filed 2002·Granted May 18, 2004·5 cites·24 claims
- 3763US7120110B2Signal processing circuit for noise elimination and demodulator circuit using the same for accurate demodulationTEAC CORP·Filed 2002·Granted Oct 10, 2006·4 cites·10 claims
- 3863US6992962B1Wobble signal detection circuit having a lowpass filter for detecting a wobble signal with reduced sampling noiseTEAC CORP·Filed 2000·Granted Jan 31, 2006·5 cites·4 claims
- 3962US7102461B2Surface acoustic wave element, surface acoustic wave device, surface acoustic wave duplexer, and method of manufacturing surface acoustic wave elementTDK CORP·Filed 2004·Granted Sep 5, 2006·8 cites·17 claims
- 4061US5227747ADielectric filter having coupling amount adjusting patternsOKI ELECTRIC IND CO LTD·Filed 1992·Granted Jul 13, 1993·18 cites·4 claims
- 4161US4803677ARotary recording medium having a guide track and recording and reproducing apparatus thereforTEAC CORP·Filed 1986·Granted Feb 7, 1989·13 cites·8 claims
- 4260US5150089ADielectric filter having an attenuation pole tunable to a predetermined frequencyOKI ELECTRIC IND CO LTD·Filed 1990·Granted Sep 22, 1992·17 cites·1 claims
- 4360US5132957AInformation signal recording and reproducing system capable of recording an information signal on a medium having a limited recording band widthTEAC CORP·Filed 1989·Granted Jul 21, 1992·11 cites·8 claims
- 4459US7170837B2Optical disk device having means for generating a tracking offset signal according to laser diode current or temperatureTEAC CORP·Filed 2002·Granted Jan 30, 2007·3 cites·3 claims
- 4558US11116727B2Preparation containing 6,7-unsaturated-7-carbamoyl morphinan derivativesSHIONOGI & CO·Filed 2018·Granted Sep 14, 2021·0 cites·11 claims
- 4658US5247509ADisk storage which automatically adjusts to optimum recording/reproducing levelMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Sep 21, 1993·12 cites·10 claims
- 4757US7817527B2Optical disk drive and method for recording dataTEAC CORP·Filed 2007·Granted Oct 19, 2010·0 cites·7 claims
- 4856US7355942B2Optical disk and optical disk drive for suppressing a digital sum value and low-frequency componentsTEAC CORP·Filed 2004·Granted Apr 8, 2008·2 cites·6 claims
- 4955US7304924B2Optical disk device capable of demodulation and verification of address data from land and groove track address systemsTEAC CORP·Filed 2004·Granted Dec 4, 2007·2 cites·12 claims
- 5055US5359589AOptical information recording and reproducing apparatus having functions for adjusting intensity of light beamTEAC CORP·Filed 1990·Granted Oct 25, 1994·10 cites·6 claims
Showing the top 50 of 93 patent records by PatentIndex Score.
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