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Inventor:
Tsukamoto; Yuji
Address:
Tokyo, JP
No. of patents:
15
Patents:












Patent Number Title Of Patent Date Issued
7427357 Process and apparatus for anaerobic treatment of sulfur compound-containing wastewater September 23, 2008
An object of the present invention is to provide a process for a high-performance upflow anaerobic sludge treatment (methane fermentation treatment) targeting an organic wastewater containing an inorganic sulfur compound and an apparatus therefor. The invention relates to a process f
6700129 Electronic board system and coordinates-inputting pen March 2, 2004
The present invention transmits, to an electronic board controller 14, click signals generated upon manipulating multiple switches provided on a coordinates-inputting pen 13, timing signals upon detecting infrared scanning beams 18a and 18b, and the like without using a connecting wire.S
6639766 Magneto-resistance effect type composite head and production method thereof October 28, 2003
A magneto-resistance effect ("MR") type composite head includes a reproduction head with an MR element arranged between a first and a second magnetic shield; and a recording head arranged adjacent to the reproduction head so as to use the second magnetic shield as a first magnetic po
6341053 Magnetic tunnel junction elements and their fabrication method January 22, 2002
The present invention provides a magnetic tunnel junction device for an external magnetic field sensor. The device comprises a stack of multi-layers, which include a first antiferromagnetic pinning layer, a ferromagnetic free layer, a tunneling barrier layer, a ferromagnetic pinned l
6333842 Magneto-resistance effect type composite head and production method thereof December 25, 2001
The present invention provides a magneto-resistance effect (hereinafter, referred to as MR) type composite head. The head includes a reproduction head including an MR element arranged between a first and a second magnetic shield; and a recording head arranged next to the reproduction
6330124 Magnetic disk device using a contact start stop system December 11, 2001
It is an object of the present invention to improve reliability to a dust or the like of a magnetic disk device. The magnetic disk device of the present invention comprises a magnetic disk 10, a levitation type magnetic head slider 12 and a controller 14 for controlling an operation of t
6181503 Magnetic disk device using a contact start stop system January 30, 2001
It is an object of the present invention to improve reliability to a dust or the like of a magnetic disk device. The magnetic disk device of the present invention comprises a magnetic disk 10, a levitation type magnetic head slider 12 and a controller 14 for controlling an operation of t
6174736 Method of fabricating ferromagnetic tunnel junction device January 16, 2001
There is provided a method of fabricating a ferromagnetic tunnel junction device, including the steps of (a) forming a first ferromagnetic layer on a substrate, (b) forming a tunnel barrier layer on the first ferromagnetic layer, (c) forming a second ferromagnetic layer on the tunnel bar
5994035 Method of producing magnetic head slider of the flying type having a protective coating November 30, 1999
A magnetic head slider has a protective film which forms, at a portion of an air bearing surface nearer to the air incoming side from the center, a hill-shaped crown of a desired height sufficient in terms of the mechanical durability of the protective film by a variation of the film
5867677 Switching adapter and method for a computer system February 2, 1999
A function of a switch apparatus is realized as an adapter. Signaling data which cannot be processed in the adapter, is output to a mainframe bus of a computer through an AAL controller, a RAM, and a bus controller. The computer processes the signaling data and sends it to a switch adapt
5781376 Magnetic head with polycrystalline silicon layer on slide running surface July 14, 1998
The magnetic head disclosed has a slider which comprises a running surface where contact-sliding with respect to a magnetic recording medium occurs, and a polycrystalline silicon film which is provided on at least a portion of said running surface. The polycrystalline silicon film has a
5447796 Magnetic recording medium comprising a solid lubrication layer of fullerene carbon having an alk September 5, 1995
A magnetic disk has a magnetic medium or a protection film, and a solid lubrication film formed on the medium or the protection film and consisting of a fullerene C60, C 70 or C84 and an alkyl or allyl-chained fullerene. The lubrication film provides the disk with high mechanical dur
4856326 Apparatus for measuring an adhesion force of a thin film August 15, 1989
An apparatus for measuring the adhesion force of a thin film deposited on a substrate of a specimen. The apparatus comprises an inclining mechanism for mounting a sample dish with a specimen inclined by a predetermined angle with respect to the sample dish, an indentor disposed above the
4839244 Magnetic recording medium with protective layer using graphite fluoride and method of producing June 13, 1989
In a magnetic recording medium such as a magnetic disk, a protective coating excellent in both mechanical durability and corrosion resistance is provided on a layer of a magnetic recording material, which may be a metal film, by jointly using graphite fluoride and an inorganic nonmet
4758474 Magnetic recording member July 19, 1988
Herein is disclosed a magnetic recording member having a high mechanical durability and an improved resistance to wear. The magnetic recording member comprises a substrate, a magnetic layer formed on the surface of the substrate and a first non-magnetic layer of a metal having a low










 
 
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