Inventor
OHTSUKA YOSHINORI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “OHTSUKA YOSHINORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
16 patentsUS6324032B1Nov 27, 2001
Magnetic recording medium having linear or curved tracking servo patterns formed obliquely relative to direction of tracks, and magnetic recording apparatus using the same
FUJITSU LTD48 citations96
US6055139AApr 25, 2000
Magnetic recording medium and method of forming the same and magnetic disk drive
FUJITSU LTD60 citations96
US6828046B2Dec 7, 2004
Soft magnetic film of FeCoMO having a high saturation flux density, a moderate soft magnetism and a uniaxial magnetic anisotropy
FUJITSU LTD19 citations93
US5859753AJan 12, 1999
Spin valve magnetoresistive head with spun valves connected in series
FUJITSU LTD25 citations93
US5995339ANov 30, 1999
Magnetoresistive head with a front flux guide and an embedded MR element
FUJITSU LTD36 citations92
US5774308AJun 30, 1998
Thin film inductive head and magnetic writing/reading drive including the same
FUJITSU LTD29 citations92
US6614620B2Sep 2, 2003
Thin film magnetic head
FUJITSU LTD15 citations84
US6083410AJul 4, 2000
Thin film magnetic head and process for producing same
FUJITSU LTD18 citations84
US6751052B1Jun 15, 2004
Thin film magnetic head with short lower magnetic pole piece
FUJITSU LTD16 citations83
US5771141AJun 23, 1998
Magnetoresistive head and magnetic recording/reproducing apparatus
FUJITSU LTD18 citations82
US6180421B1Jan 30, 2001
Method and apparatus for manufacturing magnetic head
FUJITSU LTD16 citations77
US5717630AFeb 10, 1998
Magnetic memory device
FUJITSU LTD13 citations74
US6813824B2Nov 9, 2004
Method of producing thin film magnetic head
FUJITSU LTD7 citations73
US6567239B1May 20, 2003
Thin film magnetic head including a coil insulating resin filler and an insulating metallic layer covering at least partly the insulating resin filler on a datum plane
FUJITSU LTD12 citations73
US7167341B2Jan 23, 2007
Thin film magnetic head having lower auxiliary magnetic pole on lower magnetic pole layer
FUJITSU LTD0 citations52
US6692977B2Feb 17, 2004
Method for manufacturing magnetic head
FUJITSU LTD0 citations42
NIPPON DENSO CO
14 patentsUS5922212AJul 13, 1999
Semiconductor sensor having suspended thin-film structure and method for fabricating thin-film structure body
NIPPON DENSO CO122 citations98
US5396247AMar 7, 1995
Analog-to-digital conversion circuit having a pulse circulating portion
NIPPON DENSO CO133 citations98
US5864064AJan 26, 1999
Acceleration sensor having coaxially-arranged fixed electrode and movable electrode
NIPPON DENSO CO59 citations96
US5416444AMay 16, 1995
Ring oscillator and pulse phase difference encoding circuit
NIPPON DENSO CO55 citations96
US5359287AOct 25, 1994
Magnetic detecting circuit having magnetoresistance effective elements oriented in at least two different directions
NIPPON DENSO CO53 citations96
US5331294AJul 19, 1994
Oscillation circuit including a ring oscillator having a changeable number of inverter circuits
NIPPON DENSO CO52 citations96
US5134371AJul 28, 1992
Magnetic detection device using an oscillator whose detection element is a magnetoresitance effective element
NIPPON DENSO CO72 citations95
US5622633AApr 22, 1997
Semiconductor sensor with suspended microstructure and method for fabricating same
NIPPON DENSO CO20 citations93
US5572057ANov 5, 1996
Semiconductor acceleration sensor with movable electrode
NIPPON DENSO CO54 citations93
US5420546AMay 30, 1995
Variable frequency oscillator having an output frequency that is controllable
NIPPON DENSO CO37 citations93
US5528200AJun 18, 1996
Ring oscillator and pulse phase difference encoding circuit
NIPPON DENSO CO28 citations92
US5504356AApr 2, 1996
Semiconductor accelerometer
NIPPON DENSO CO49 citations92
US5500549AMar 19, 1996
Semiconductor yaw rate sensor
NIPPON DENSO CO41 citations91
US5686835ANov 11, 1997
Physical quantity detection device for converting a physical quantity into a corresponding time interval
NIPPON DENSO CO7 citations74
SHARP KK
5 patentsUS5353100AOct 4, 1994
Image apparatus with removable process kit rotatable about a photoreceptor shaft
SHARP KK46 citations93
US6094550AJul 25, 2000
Developing apparatus
SHARP KK33 citations92
US5347343ASep 13, 1994
Photosensitive drum cartridge and an image forming apparatus using the same
SHARP KK26 citations91
US5287145AFeb 15, 1994
Process kit of image forming apparatus
SHARP KK7 citations74
US7949265B2May 24, 2011
Toner supply device, developing device and image forming apparatus with residual quantity of toner based control
SHARP KK4 citations62
NIPPON SOKEN
4 patentsUS5568071AOct 22, 1996
Pulse phase difference encoding circuit
NIPPON SOKEN49 citations96
US5181417AJan 26, 1993
Pressure detecting device
NIPPON SOKEN65 citations96
US5128624AJul 7, 1992
Pulse phase difference encoding circuit
NIPPON SOKEN79 citations96
US5289135AFeb 22, 1994
Pulse phase difference encoding circuit
NIPPON SOKEN31 citations92