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).
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Publication number: 20030107850Abstract: 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: ApplicationFiled: January 6, 2003Publication date: June 12, 2003Applicant: Alps Electric Co., Ltd.Inventors: Daigo Aoki, Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara
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Publication number: 20030103298Abstract: 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: ApplicationFiled: January 6, 2003Publication date: June 5, 2003Applicant: Alps Electric Co., Ltd.Inventors: Kenji Honda, Kiyoshi Sato, Yoshihiko Kakihara
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Publication number: 20030095362Abstract: 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: ApplicationFiled: January 6, 2003Publication date: May 22, 2003Applicant: Alps Electric Co., Ltd.Inventors: Daigo Aoki, Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara
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Patent number: 6563674Abstract: A pair of magnetic heads is provided with a magnetic disk for a magnetic writing/reading apparatus, and a thin-film magnetic head is provided in which forms of leads are easily changed and characteristics are stable. A pair of sliders 3a and 3b oppose each other with the magnetic disk therebetween, and connecting portions of the peripheral edges of coils Ca and Cb, and leads 6a1 and 6b1, are disposed at sides opposite to gaps for writing. Intermediate leads 8a and 8b are provided in which ends are connected to conductive layers Ea2 and Eb2 of MR elements, and the other ends are connected to leads 6a4 and 6b4 which are disposed in close proximity to the edges of the other conductive layers.Type: GrantFiled: December 23, 1999Date of Patent: May 13, 2003Assignee: Alps Electric Co., Ltd.Inventor: Kenji Honda
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Patent number: 6540636Abstract: A power transmission mechanism for a front and rear-wheel drive vehicle in which the power of an electric motor is transmitted to rear wheels includes an output shaft adapted to rotate together with the electric motor, a middle shaft which is parallel with the output shaft, a drive shaft which is parallel with the output shaft and is adapted to rotate together with the rear wheels, a first pair of reduction gears for reducing the speed of rotation of the middle shaft relative to the output shaft, a second pair of reduction gears for reducing the speed of rotation of the drive shaft relative to the middle shaft and a rear differential disposed closer to an electric motor side than the second pair of reduction gears and coupled to the reduction gear and the drive shaft.Type: GrantFiled: November 19, 2001Date of Patent: April 1, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hirokatsu Amanuma, Naoki Uchiyama, Kenji Honda, Taiji Maruyama
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Patent number: 6536572Abstract: There are provided a synchronizing system which synchronizes two relatively rotating rotary bodies with each other by frictional forces generated between friction discs, such that a larger torque can be transmitted between the rotary bodies as an input torque becomes larger, and a transmission torque control device for the synchronizing system. In order to transmit torque between an input shaft and a gear member, the synchronizing system which connects the input shaft and the gear member with each other while synchronizing them urges a blocking ring toward the gear member by using a synchronizing spring, when a sleeve is caused to slide toward the blocking ring by an actuator.Type: GrantFiled: September 21, 2001Date of Patent: March 25, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hirokatsu Amanuma, Naoki Uchiyama, Hidenori Okamura, Kenji Honda
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Patent number: 6538858Abstract: In the present invention, hard bias layers are arranged in the same layer level as a free magnetic layer, and the upper surfaces of the hard bias layers are joined to the sides of a lamination at positions lower than the upper edges of the sides of the lamination above a substrate. The upper surfaces of the hard bias layers are also joined to the sides of the lamination at the same position as or positions lower than the uppermost position of the hard bias layers above the substrate. A spin-valve thin film element is provided having a decrease in an effective magnetic field applied to the free magnetic layer, and a magnetic field in the direction opposite to the magnetization direction of the free magnetic layer, permitting sufficient control of the magnetic domain of the free magnetic layer, and exhibiting excellent stability. The present invention also provides a method of manufacturing the spin-valve thin film element.Type: GrantFiled: January 25, 2000Date of Patent: March 25, 2003Assignee: Alps Electric Co., Ltd.Inventors: Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara
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Publication number: 20030047408Abstract: 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: ApplicationFiled: July 19, 2002Publication date: March 13, 2003Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii, Kenji Honda
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Patent number: 6528959Abstract: There is provided a driving force control system for a front-and-rear wheel drive vehicle, which is capable maintaining an optimum slip condition of the drive wheels even on a low-friction road surface, ensuring a proper grip of rear wheels even on a low-friction road surface or a downhill slope, even when the driver operates the steering wheel while the vehicle is performing decelerating travel on such a road, and smoothly performing the assistance of an electric motor when the vehicle is accelerated without developing a torque step, thereby ensuring stable traveling and excellent acceleration and drivability. The front-and-rear wheel drive vehicle drives the front wheels by an engine, and rear wheels by an electric motor via an electromagnetic clutch. The target driving force for driving the vehicle is calculated based on at least a vehicle speed and an accelerator pedal opening. The present traveling condition of the vehicle is determined.Type: GrantFiled: July 17, 2001Date of Patent: March 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kazuhiko Kitano, Toshihiko Fukuda, Takahiro Yonekura, Naoki Uchiyama, Kenji Honda, Tooru Nakasako
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Patent number: 6487044Abstract: A thin-film magnetic head includes a lower core composed of a magnetic material provided on a slider, a first insulating layer formed on the lower core, a spiral coil composed of a good conductor formed on the first insulating layer, a first leader section composed of a good conductor formed on the slider, the first leader section being connected to an end of the coil and extending to a terminal region provided on the slider, a second insulating layer formed on the first insulating layer so as to cover the coil, and an upper core composed of a magnetic material formed on the second insulating layer, the upper core being in contact with the lower core at the center of the coil. A protective magnetic film is formed on the surface of the first leader section.Type: GrantFiled: March 22, 2000Date of Patent: November 26, 2002Assignee: Alps Electric Co., Ltd.Inventor: Kenji Honda
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Publication number: 20020135947Abstract: 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: ApplicationFiled: March 20, 2002Publication date: September 26, 2002Applicant: Alps Electric Co. Ltd.Inventors: Daigo Aoki, Kenji Honda, Kiyoshi Sato, Naoya Hasegawa, Yukie Nakazawa
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Publication number: 20020132745Abstract: 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: ApplicationFiled: May 10, 2002Publication date: September 19, 2002Applicant: Arch Specialty ChemicalsInventors: Kenji Honda, Michelle elderkin, Vincent Leon
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Patent number: 6413923Abstract: 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: GrantFiled: November 15, 1999Date of Patent: July 2, 2002Assignee: Arch Specialty Chemicals, Inc.Inventors: Kenji Honda, Michelle Elderkin, Vincent Leon
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Publication number: 20020061801Abstract: A power transmission mechanism for a front and rear-wheel drive vehicle in which the power of an electric motor is transmitted to rear wheels includes an output shaft adapted to rotate together with the electric motor, a middle shaft which is parallel with the output shaft, a drive shaft which is parallel with the output shaft and is adapted to rotate together with the rear wheels, a firs pair of reduction gears for reducing the speed of rotation of the middle shaft relative to the output shaft, a second pair of reduction gears for reducing the speed of rotation of the drive shaft relative to the middle shaft and a rear differential disposed closer to an electric motor side than the second pair of reduction gears and coupled to the reduction gear and the drive shaft.Type: ApplicationFiled: November 19, 2001Publication date: May 23, 2002Applicant: Honda Giken Kogyo Kabushiki Kaisha,Inventors: Hirokatsu Amanuma, Naoki Uchiyama, Kenji Honda, Taiji Maruyama
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Patent number: 6372050Abstract: A non-corrosive photoresist stripping and cleaning composition, comprising: (a) about 5% to about 50% of a solvent; (b) about 10% to about 90% of an alkanolamine; (c) about 0.1 to 10% of a carboxylic acid; and (d) about 1.0% to 40% of water.Type: GrantFiled: June 7, 2001Date of Patent: April 16, 2002Assignee: Arch Specialty Chemicals, Inc.Inventors: Kenji Honda, Richard Mark Molin, Gale Lynne Hansen
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Publication number: 20020041167Abstract: There is provided a driving force control system for a front-and-rear wheel drive vehicle, which is capable maintaining an optimum slip condition of the drive wheels even on a low-friction road surface, ensuring a proper grip of rear wheels even on a low-friction road surface or a downhill slope, even when the driver operates the steering wheel while the vehicle is performing decelerating travel on such a road, and smoothly performing the assistance of an electric motor when the vehicle is accelerated without developing a torque step, thereby ensuring stable traveling and excellent acceleration and drivability. The front-and-rear wheel drive vehicle drives the front wheels by an engine, and rear wheels by an electric motor via an electromagnetic clutch. The target driving force for driving the vehicle is calculated based on at least a vehicle speed and an accelerator pedal opening. The present traveling condition of the vehicle is determined.Type: ApplicationFiled: July 17, 2001Publication date: April 11, 2002Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Kazuhiko Kitano, Toshihiko Fukuda, Takahiro Yonekura, Naoki Uchiyama, Kenji Honda, Tooru Nakasako
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Publication number: 20020036128Abstract: There are provided a synchronizing system which synchronizes two relatively rotating rotary bodies with each other by frictional forces generated between friction discs, such that a larger torque can be transmitted between the rotary bodies as an input torque becomes larger, and a transmission torque control device for the synchronizing system. In order to transmit torque between an input shaft and a gear member, the synchronizing system which connects the input shaft and the gear member with each other while synchronizing them urges a blocking ring toward the gear member by using a synchronizing spring, when a sleeve is caused to slide toward the blocking ring by an actuator.Type: ApplicationFiled: September 21, 2001Publication date: March 28, 2002Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hirokatsu Amanuma, Naoki Uchiyama, Hidenori Okamura, Kenji Honda
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Patent number: 6361712Abstract: 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: GrantFiled: October 15, 1999Date of Patent: March 26, 2002Assignee: Arch Specialty Chemicals, Inc.Inventors: Kenji Honda, Michelle Elderkin
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Patent number: 6349021Abstract: A thin film magnetic head is able to control occurrence of Barkhausen noises attributable to configuration magnetic anisotropy of an upper shield layer. An inductive head is provided with a magnetic material layer having a space for forming a coil layer thereon. A very narrow gap is provided between a front separate layer that opposes a magnetic recording medium and a rear separate layer that opposes the front separate layer. The front separate layer serves also as an upper shield layer of an MR head and a lower core layer of the inductive head.Type: GrantFiled: January 11, 2000Date of Patent: February 19, 2002Assignee: Alps Electric Co., Ltd.Inventor: Kenji Honda
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Publication number: 20020012812Abstract: 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: ApplicationFiled: June 12, 2001Publication date: January 31, 2002Applicant: Alps Electric Co., Ltd.Inventors: Naoya Hasegawa, Kenji Honda, Yoshihiko Kakihara