Abstract: The present invention provides a TOF range finder. A TOF range finder 1 includes a light source 2, which emits modulated emitting light La, a light source control unit 51, which drives the light source 2, an image sensor 10, which detects modulated reflected light, and a distance calculating unit 53, which calculates the distance to a distance measurement object 7 based on the phase difference between emitting light La and reflected light. The modulated light is generated in the form of a periodic waveform which contains an only odd multiple wave frequency component and at least one even multiple wave frequency component.

Abstract: The present invention provides a TOF range finder. A TOF range finder 1 includes a light source 2, which emits modulated emitting light La, a light source control unit 51, which drives the light source 2, an image sensor 10, which detects modulated reflected light, and a distance calculating unit 53, which calculates the distance to a distance measurement object 7 based on the phase difference between emitting light La and reflected light. The modulated light is generated in the form of a periodic waveform which contains an only odd multiple wave frequency component and at least one even multiple wave frequency component.

Abstract: A magnetic reading head comprising: a bottom shield; a top shield; an AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic reading heads with GMR device free of electric-pop noise also are disclosed.

Abstract: A magnetic reading head comprising: a bottom shield; a top shield; an AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic reading heads with GMR device free of electric-pop noise also are disclosed.

Abstract: A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation standard axis parallel to a center line of the writing magnetic pole portion in a direction parallel to a surface of the. Then, the writing magnetic pole portion is milled during the swing of the writing magnetic pole portion to define the width of the writing magnetic pole portion.

Abstract: The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic recording heads with GMR device free of electric-pop noise also are disclosed.

Abstract: A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation standard axis parallel to a center line of the writing magnetic pole portion in a direction parallel to a surface of the. Then, the writing magnetic pole portion is milled during the swing of the writing magnetic pole portion to define the width of the writing magnetic pole portion.

Abstract: A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation standard axis parallel to a center line of the writing magnetic pole portion in a direction parallel to a surface of the. Then, the writing magnetic pole portion is milled during the swing of the writing magnetic pole portion to define the width of the writing magnetic pole portion.

Abstract: The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic recording heads with GMR device free of electric-pop noise also are disclosed.

Abstract: A second magnetic film of an inductive type electromagnetic conversion element is positioned at a trailing edge side relative to a first magnetic film of the conversion element. One edge portion of the second magnetic film is opposed to one edge portion of the first magnetic film by a given distance. The one edge portion of the second magnetic film has at least one side surface inclined at a given inclination angle not less than a maximum skew angle. The second magnetic film is extended backward, and joined with the first magnetic film. A coil film of the inductive type electromagnetic conversion element is whirled around the magnetic circuit composed of the first and second magnetic films.

Abstract: The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second insulating gap layer between said AMR/GMR and said top shield; and conductive layer contacting electrically both said AMR.GMR device to siaid bottom shield. Furthermore, similar active devices free of electric-pop noise also be disclosed.

Abstract: The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second insulating gap layer between said AMR/GMR and said top shield; and conductive layer contacting electrically both said AMR/GMR device to said bottom shield. Furthermore, similar active devices free of electric-pop noise also be disclosed.

Abstract: A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation standard axis parallel to a center line of the writing magnetic pole portion in a direction parallel to a surface of the. Then, the writing magnetic pole portion is milled during the swing of the writing magnetic pole portion to define the width of the writing magnetic pole portion.

Abstract: A second magnetic film of an inductive type electromagnetic conversion element is positioned at a trailing edge side relative to a first magnetic film of the conversion element. One edge portion of the second magnetic film is opposed to one edge portion of the first magnetic film by a given distance. The one edge portion of the second magnetic film has at least one side surface inclined at a given inclination angle not less than a maximum skew angle. The second magnetic film is extended backward, and joined with the first magnetic film. A coil film of the inductive type electromagnetic conversion element is whirled around the magnetic circuit composed of the first and second magnetic films.

Abstract: The present invention is directed to stabilize the flying height at a constant level and prevent head crashes.Indented portions 104 and 105 are formed shorter than rail portions 101 and 102. Rear rail surfaces 113 and front rail surfaces 112 are formed at the slider 1 with middle rail surfaces 111 formed between them. The rear rail surfaces 113 and the front rail surfaces 112 each include a first surface (L1) whose surface width is determined by the entire width W01 or W02 of the rail portion 101 or 102 and a second surface (L3) whose surface width is gradually reduced starting from the surfaces width W01 or W02 of the first (L1) toward the surface width W11 or W12 of the middle rail surfaces 111. The requirements, i.e., L1.ltoreq.2.5% of L0 and L1<L2.ltoreq.15% of L0 are satisfied for the length L1 of the first surfaces (L1), the length L2, that includes the first surfaces (L1) and the second surfaces (L3) and the entire length L0 of the rail portions 101 and 102.

Abstract: The slider is provided with at least one rail portion which extends between the trailing end portion and the leading end portion on one surface of the slider body. At least one magnetic transducer is provided on a line extended from the rail portion toward the trailing end of the slider body. The rail portion is provided with indented rail portions formed along the two sides and the rail surface, excluding the indented rail portions, forms the air bearing surface. The indented rail portions are formed shorter than the rail portion so that the air bearing surface continues all the way to, at least, the trailing end portion of the slider body. The width of the air bearing surfaces, which are cut into by the indented rail portions, is maintained at approximately the same dimension over the entire length of the indented rail portions.