P

Inventor

TAKEDA TORU

JP84 patents
⚠️ This page may combine multiple inventors who share the name “TAKEDA TORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

27 patents
US5886985AMar 23, 1999

Optical recording medium having a plurality of sectors separated by sync signals

SONY CORP150 citations99
US5978336ANov 2, 1999

Optical disk finalization method and optical disk finalization apparatus

SONY CORP94 citations97
US6144517ANov 7, 2000

Magnetic disk device and method of manufacturing same

SONY CORP50 citations96
US5907448AMay 25, 1999

Magnetic disk device and method of manufacturing same having convex recordings regions, concave guard bands, and impressed concavities and convexities representing control signals

SONY CORP52 citations96
US5878024AMar 2, 1999

Optical disc, apparatus and method for recording and reproducing data

SONY CORP82 citations96
US5835478ANov 10, 1998

Optical disc having address information for recording and reproducing data at correct positions

SONY CORP55 citations96
US5835461ANov 10, 1998

Optical disc, apparatus and method for recording and reproducing data

SONY CORP65 citations96
US7372915B1May 13, 2008

Transmitting method and transmitting device, receiving method and receiving device, and transfer method and transfer system

SONY CORP36 citations95
US6256282B1Jul 3, 2001

Optical recording medium and recording method thereof

SONY CORP74 citations95
US5905705AMay 18, 1999

Disc device having eccentricity measurement and clock correction

SONY CORP45 citations95
US6147945ANov 14, 2000

Recording/reproducing apparatus and method

SONY CORP29 citations93
US5978333ANov 2, 1999

Recording/reproducing apparatus and method

SONY CORP36 citations93
US5859740AJan 12, 1999

Information storage disc and information recording and reproducing apparatus

SONY CORP21 citations93
US5828639AOct 27, 1998

Recording/playback device and method thereof, and disc

SONY CORP30 citations93
US5815486ASep 29, 1998

Optical disk, recording/reproducing apparatus and method for rapidly recording/reproducing data on/from an optical disk using gray coding

SONY CORP32 citations93
US6055218AApr 25, 2000

Recording medium having track formed of land portion and groove portion, and reproducing apparatus therefor

SONY CORP36 citations92
US5949602ASep 7, 1999

Method and apparatus for measuring head deviation and method and apparatus for recording/reproducing data

SONY CORP17 citations92
US5761165AJun 2, 1998

Disc device providing eccentricity compensation using a head radial position detecting circuit

SONY CORP19 citations92
US5677819AOct 14, 1997

Magnetic disk having improved servo area for protecting equal time interval characteristics and for preventing azimuth loss

SONY CORP21 citations92
US5617388AApr 1, 1997

Disc recording/reproducing apparatus which uses stored eccentricity data to maintain the read/write head at a constant radial position during a stand-by mode

SONY CORP27 citations92
US5615191AMar 25, 1997

Disc device having eccentricity measurement and clock correction

SONY CORP23 citations92
US6018507AJan 25, 2000

Method of and apparatus for recording data on land/groove track on optical recording medium

SONY CORP16 citations84
US6614745B1Sep 2, 2003

Recording apparatus and recording medium

SONY CORP19 citations82
US6256276B1Jul 3, 2001

Disk recording and reproducing apparatus and method for use in a rewritable type disk

SONY CORP12 citations74
US6144516ANov 7, 2000

Head displacement measuring method and apparatus and data recording/reproducing method and apparatus

SONY CORP13 citations74
US5917783AJun 29, 1999

Optical disk, a recording/reproducing apparatus and method for the optical disk

SONY CORP6 citations74
US5835468ANov 10, 1998

Optical disk, recording/reproducing apparatus and method for rapidly recording/reproducing data on/from an optical disk using gray coding

SONY CORP6 citations74

HONDA MOTOR CO LTD

7 patents

KONAMI CO LTD

6 patents

TOSHIBA KK

3 patents

TAKEDA TORU

2 patents

NIPPON STEEL CHEMICAL CO

2 patents

HITACHI LTD

1 patent

WHITAKER CORP

1 patent

MITSUBISHI CHEM CORP

1 patent

Showing the top 50 of 84 patents by PatentIndex Score.