Inventor · Ikoma, JP

Mitsurou Moriya

70Patents
18h-index
56Co-inventors
83Inventor score

Filing activity: Mar 7, 1994 → Jul 9, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US5508995A Optical disk capable of recording information on both groove and land tracks Physics 158 Expired
US6081785A Optical disk, optical recorder, optical reproducer, crytocommunication system and program license system Physics 125 Expired
US6266299A Magneto-optical disk having write-once identification marks and method for recording thereof Physics 78 Expired
US5663942A Jitter measurement apparatus detecting amplitude of phase errors between information signal and synchronized clock signal Physics 70 Expired
US5444682A Tracking control apparatus Physics 59 Expired
US5726969A Optical recording medium having dual information surfaces Emerging Cross-Sectional Technologies 46 Expired
US6011762A Optical disk apparatus Physics 40 Expired
US5815485A Recording medium, a method for producing the same, a control method using the recording medium, and a recording/reproducing apparatus using the recording medium Physics 39 Expired
US6633853B2 Recordable optical disk encrypted with disk identification and multiple keys Physics 31 Expired
US6285635A Optical disk apparatus Physics 30 Expired
US5878018A Optical recording medium having dual information surfaces Emerging Cross-Sectional Technologies 30 Expired
US5566141A Track retrieving method for making a light beam jump and scan from one track to another Physics 29 Expired
US5831952A Optical disk thickness discriminating apparatus Physics 27 Expired
US6298019A Optical disk apparatus Physics 23 Expired
US5805543A Tilt control apparatus based on pulsed width detection of an information reproduced signal Physics 21 Expired
US6343282B1 Optical disk reading device using both a decipher key and disk identification information Physics 21 Expired
US5867475A Optical record carrier and method for recording and reproducing signals therefrom Physics 20 Expired
US5732066A Optical record carrier and method for recording and reproducing signals therefrom Physics 18 Expired
US6885629B2 Recordable optical disk including an auxiliary information presence indicator Physics 17 Expired
US6031813A Optical recording medium having dual information surfaces Emerging Cross-Sectional Technologies 16 Expired
US5850379A Optical information recording medium, optical information recording method, and optical information reproducing apparatus utilizing the same Physics 14 Expired
US6301569A Optical disk, optical recorder, optical reproducer, cryptocommunication system and program license system Physics 14 Expired
US5886962A Tilt control apparatus with tilt target value based on bit error rate signal Physics 13 Expired
US6611820B2 Recording medium, recorder, reproducer, cryptocommunication system and program license system Physics 13 Expired
US5777967A Optical disk device Physics 11 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.