Patents by Inventor Kenji Honda

Kenji Honda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7059453
    Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed through an annular brake guide inside the fixed housing, an exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member arranged radially outside of the core member. Each of the core member and the armature member has a plurality of tapering surfaces. The tapering surfaces of the core member are respectively complementary in shape to the tapering surfaces of the armature member. The electromagnetic brake further includes a cylindrical pressure member movable in a direction of pressing the multiplate brake mechanism. The cylindrical pressure member has one end fixed to the armature member and another end engaged with the multiplate brake mechanism.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: June 13, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoichiro Yamamoto, Katsuhiro Kitamura, Rikiya Kunii, Keiichi Ooiso, Kenji Honda, Akihiro Iwazaki
  • Patent number: 7054115
    Abstract: A spin-valve thin-film magnetic element includes a substrate, a composite formed thereon, and electrode layers formed on both sides of the composite. The composite includes an antiferromagnetic layer, a pinned magnetic layer, a nonmagnetic conductive layer, a free magnetic layer, a mean-free-path-extending layer, and an exchange bias layer. The mean-free-path-extending layer may be a back layer or a mirror reflective layer. The mean-free-path-extending layer extends the mean free path of spin-up conduction electrons in the spin-valve thin-film magnetic element. This spin-valve thin-film magnetic element meets trends toward a narrower track width.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: May 30, 2006
    Assignee: Alps Electric Co., Ltd.
    Inventors: Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara
  • Publication number: 20060094614
    Abstract: A non-corrosive cleaning composition for removing residues from a substrate. The composition comprises: (a) water; (b) at least one hydroxylammonium compound; (c) at least one basic compound, preferably selected from the group consisting of amines and quaternary ammonium hydroxides; (d) at least one organic carboxylic acid; and (e) optionally, a polyhydric compound. The pH of the composition is preferably between about 2 to about 6.
    Type: Application
    Filed: December 16, 2005
    Publication date: May 4, 2006
    Inventors: Kenji Honda, Michelle Elderkin, Vincent Leon
  • Patent number: 7001874
    Abstract: A non-corrosive cleaning composition for removing residues from a substrate. The composition comprises: (a) water; (b) at least one hydroxylammonium compound; (c) at least one basic compound, preferably selected from the group consisting of amines and quaternary ammonium hydroxides; (d) at least one organic carboxylic acid; and (e) optionally, a polyhydric compound. The pH of the composition is preferably between about 2 to about 6.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: February 21, 2006
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Kenji Honda, Michelle Elderkin, Vincent Leon
  • Publication number: 20050270703
    Abstract: A CPP giant magnetoresistive head includes a lower shield layer; an upper shield layer; and a giant magnetoresistive element (GMR) between the lower shield layer and the upper shield layer. The GMR includes a nonmagnetic material layer; a pinned magnetic layer; and a free magnetic layer. The pinned layer and the free layer are laminated with the nonmagnetic layer provided therebetween. A current flows perpendicularly to a film plane of the GMR, the pinned magnetic layer extends in the height direction longer than in a track-width direction and includes a first portion in the GMR. The first portion is disposed above or below the nonmagnetic layer and the free layer. A second portion is behind the nonmagnetic layer and the free layer in the height direction. The first and second portions are in the same plane. The width of the pinned layer in the track-width direction in the first portion is greater than that in the second portion.
    Type: Application
    Filed: May 31, 2005
    Publication date: December 8, 2005
    Inventors: Yasuo Hayakawa, Yoshihiro Nishiyama, Digo Aoki, Masamichi Saito, Naohiro Ishibashi, Kenji Honda
  • Publication number: 20050106833
    Abstract: A semiconductor device includes a semiconductor substrate, an element-isolating region formed in the semiconductor substrate, a real element region formed in the semiconductor substrate and outside the element-isolating region and having a metal silicide layer formed on the surface thereof, and a dummy element region formed in the semiconductor substrate and outside the element-isolating region and having a metal silicide layer formed on the surface thereof. The ratio of the sum of pattern areas of the real element region and dummy element region occupied in a 1 ?m-square range of interest including the element region is 25% or more.
    Type: Application
    Filed: May 4, 2004
    Publication date: May 19, 2005
    Inventors: Hisato Oyamatsu, Kenji Honda
  • Patent number: 6847508
    Abstract: The present invention provides a spin valve thin film magnetic element including a laminate in which an antiferromagnetic layer, a pinned magnetic layer provided in contact with the antiferromagnetic layer so that the magnetization direction is pinned by an exchange coupling magnetic field with the antiferromagnetic layer, a nonmagnetic conductive layer provided in contact with the pinned magnetic layer, a second free magnetic layer provided in contact with the nonmagnetic conductive layer, a nonmagnetic intermediate layer provided in contact with the second free magnetic layer, a first free magnetic layer provided in contact with the nonmagnetic intermediate layer and antiferromagnetically coupled with the second free magnetic layer to form a ferrimagnetic state together with the second free magnetic layer, and a backed layer provided in contact with the first free magnetic layer and having higher conductivity than the first free magnetic layer are laminated.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: January 25, 2005
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kenichi Tanaka, Masamichi Saito, Yosuke Ide, Naoya Hasegawa, Yoshihiko Kakihara, Kenji Honda
  • Patent number: 6844998
    Abstract: Assuming that a distance between an upper shield layer and a lower shield layer in an area, which overlaps only a first electrode layer, but does not overlap a second electrode layer, is G1s, and a distance between the upper shield layer and the lower shield layer at a position in alignment with a center of a multilayered film is G1c, a difference in value between G1s and G1c is set to be not larger than a predetermined value, whereby an effective track (read) width can be reduced.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: January 18, 2005
    Assignee: Alps Electric Co., Ltd.
    Inventors: Daigo Aoki, Kenji Honda, Kiyoshi Sato, Naoya Hasegawa, Yukie Nakazawa
  • Publication number: 20040257484
    Abstract: A tablet includes a top substrate and a bottom substrate. Minute irregularities are provided on a bottom surface of the bottom substrate. Projections or depressions constituting the minute irregularities are disposed in a staggered arrangement parallel to the direction along which light travels through the light-guide plate or along the vertical direction of a display region in the bottom substrate when viewed by a viewer. Thus, the pitch of the projections or depressions next to each other in the lateral direction is minimized when viewed by the viewer. Hence, even if −1-st order reflected light occurs in the oblique direction with respect to the vertical direction of the display, the −1-st order reflection of blue light with a shorter wavelength in the visible light band can be suppressed.
    Type: Application
    Filed: June 10, 2004
    Publication date: December 23, 2004
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Yoshihiko Ishitaka, Tetsuya Fukuda, Koichi Naito, Kenji Honda
  • Patent number: 6791804
    Abstract: A magnetoresistive-effect device includes a multilayer film, hard bias layers arranged on both sides of the multilayer film, and electrode layers respectively deposited on the hard bias layers. The electrode layers are formed, extending over the multilayer film. Under the influence of the hard bias layers arranged on both sides of the multilayer, the multilayer film, forming the magnetoresistive-effect device, has, on the end portions thereof, insensitive regions which exhibit no substantial magnetoresistive effect. The insensitive region merely increases a direct current resistance. By extending the electrode layers over the insensitive regions of the multilayer film, a sense current is effectively flown from the electrode layer into the multilayer film. With a junction area between the electrode layer and the multilayer film increased, the direct current resistance is reduced, while the reproduction characteristics of the device are thus improved.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: September 14, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Daigo Aoki, Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara
  • Patent number: 6756135
    Abstract: A spin valve thin-film magnetic element has an improved rate of change in resistance (&Dgr;R/R) that can be used for a narrower magnetic track. The spin valve thin-film magnetic element has a laminate that include an antiferromagnetic layer, a pinned magnetic layer, a non-magnetic conductive layer, a free magnetic layer, a back layer, specular-reflection layers and a pair of electrode layers formed at the two sides of the laminate. Preferably the specular reflection layer includes an oxide, such as &agr;-Fe2O3 or NiO, or a half-metal Heusler alloy, such as NiMnSb or PtMnSb.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: June 29, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara
  • Publication number: 20040105646
    Abstract: An anti-reflective film has an anti-reflective structure having many micro holes extending from a reference surface (first surface) in the thickness direction of the film. Each of the holes has an opening exposed at the reference surface, and a bottom facing the second surface on the attachment side. Light incident on the anti-reflective film is mostly introduced into the holes through the openings and diffused by the bottoms, thereby avoiding reflection at a predetermined angle. The ratio of a connecting surface which reflects light is suppressed to increase the ratio of the openings, thereby maximizing the anti-reflective ability of the anti-reflective structure.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Tetsuya Fukuda, Kenji Honda, Daigo Aoki, Naohiro Ishibashi, Koichi Naito, Yoshihiko Ishitaka
  • Patent number: 6730858
    Abstract: A circuit board for mounting a part having a plurality of bumps by ultrasonic bonding. The circuit board includes a main body and a conductive layer provided on the main body. The conductive layer has a conductive pattern having at least one bonding area configured to correspond to the plurality of bumps of the part. The conductive layer has an isolated notch part located proximate the at least one bonding area.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: May 4, 2004
    Assignee: TDK Corporation
    Inventors: Masashi Gotoh, Jitsuo Kanazawa, Syuichiro Yamamoto, Kenji Honda
  • Publication number: 20040040801
    Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed through an annular brake guide inside the fixed housing, an exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member arranged radially outside of the core member. Each of the core member and the armature member has a plurality of tapering surfaces. The tapering surfaces of the core member are respectively complementary in shape to the tapering surfaces of the armature member. The electromagnetic brake further includes a cylindrical pressure member movable in a direction of pressing the multiplate brake mechanism. The cylindrical pressure member has one end fixed to the armature member and another end engaged with the multiplate brake mechanism.
    Type: Application
    Filed: June 26, 2003
    Publication date: March 4, 2004
    Applicant: Honda Giken Kogyo Kabushiki Kaisha, Tokyo, Japan
    Inventors: Yoichiro Yamamoto, Katsuhiro Kitamura, Rikiya Kunii, Keiichi Ooiso, Kenji Honda, Akihiro Iwazaki
  • Patent number: 6690554
    Abstract: A magnetoresistive-effect device includes a multilayer film, hard bias layers arranged on both sides of the multilayer film, and electrode layers respectively deposited on the hard bias layers. The electrode layers are formed, extending over the multilayer film. Under the influence of the hard bias layers arranged on both sides of the multilayer, the multilayer film, forming the magnetoresistive-effect device, has, on the end portions thereof, insensitive regions which exhibit no substantial magnetoresistive effect. The insensitive region merely increases a direct current resistance. By extending the electrode layers over the insensitive regions of the multilayer film, a sense current is effectively flown from the electrode layer into the multilayer film. With a junction area between the electrode layer and the multilayer film increased, the direct current resistance is reduced, while the reproduction characteristics of the device are thus improved.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: February 10, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Daigo Aoki, Naoya Hasegawa, Kenji Honda, Kiyoshi Sato, Yoshihiko Kakihara
  • Patent number: 6672443
    Abstract: The object of the present invention is to provide an electromagnetic friction connecting apparatus, which allows the easier operations associated with the installation of an exciting coil or a search coil in a core element. Input and output terminals having second horizontal parts extending in the vehicle inward direction and second vertical parts extending from the ends of the second horizontal parts into the radial outward direction are provided for the exciting coil and the search coil. Each end of the second vertical parts is situated radially inside a periphery surface of the exciting coil. Holes which allow the respective ends of the second vertical parts of the input and output terminals to face the outside are made on the core element and the housing. They are connected to the ends of the second vertical parts of the input and output terminals by inserting couplers into these holes.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: January 6, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akihiro Iwazaki, Rikiya Kunii, Kenji Honda
  • Patent number: 6643107
    Abstract: The invention provides a spin valve thin film element in which output characteristics and the stability of reproduced waveforms are improved, asymmetry is decreased, and the occurrence of side reading is prevented. The spin valve thin film element includes a lamination having an antiferromagnetic layer, a first pinned magnetic layer, a nonmagnetic intermediate layer, a second pinned magnetic layer, a nonmagnetic conductive layer, a free magnetic layer, and a backed layer composed of a nonmagnetic conductive material, which are laminated on a substrate. Hard bias layers are formed on both sides of the lamination, and orient the magnetization direction of the free magnetic layer in the direction crossing the magnetization direction of the second pinned magnetic layer. Electrode layers are formed on the hard bias layers to supply a sensing current J to the lamination. The electrode layers are formed to extend to the surface of the lamination toward the central portion from both sides of the lamination.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: November 4, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Naoya Hasegawa, Kiyoshi Sato, Kenji Honda
  • Publication number: 20030156359
    Abstract: A thin-film electrode layer having a superior electromigration resistance is disclosed. The thin-film electrode layer includes a first base layer composed of &bgr;-Ta, a main conductive layer composed of Au, and a protective layer. The protective layer is a composite of a Cr sublayer and an &agr;-Ta sublayer. A thin-film magnetic head having the thin-film electrode layers and a method for forming electrodes in the thin-film magnetic head are also disclosed.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 21, 2003
    Inventors: Akira Takahashi, Jun Takahashi, Yuko Kawasaki, Kenji Honda, Naohiro Ishibashi, Eiji Umetsu
  • Patent number: 6589439
    Abstract: A composition for selective etching of oxides over a metal. The composition contains water, hydroxylammonium salt, carboxylic acid, a fluorine containing compound, and optionally, a base. The pH of the composition is about 2 to 6.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: July 8, 2003
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Kenji Honda, Michelle Elderkin
  • Patent number: 6587315
    Abstract: A magnetoresistive-effect device includes a multilayer film, hard bias layers arranged on both sides of the multilayer film, and electrode layers respectively deposited on the hard bias layers. The electrode layers are formed, extending over the multilayer film. Under the influence of the hard bias layers arranged on both sides of the multilayer, the multilayer film, forming the magnetoresistive-effect device, has, on the end portions thereof, insensitive regions which exhibit no substantial magnetoresistive effect. The insensitive region merely increases a direct current resistance. By extending the electrode layers over the insensitive regions of the multilayer film, a sense current is effectively flown from the electrode layer into the multilayer film. With a junction area between the electrode layer and the multilayer film increased, the direct current resistance is reduced, while the reproduction characteristics of the device are thus improved.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: July 1, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Daigo Aoki, Naoya Hasegawa, Kenji Honda, Kiyoshi Sato, Yoshihiko Kakihara