Patents by Inventor Shigemi Kurashima
Shigemi Kurashima 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: 20050179649Abstract: An actuator includes: a magnetic field generator that has different magnetic poles alternately arranged in a plane, with a predetermined position being the center of the magnetic poles; a coil holder that holds a plurality of coils that are radially arranged and face the magnetic field generator, relative motion being caused between the magnetic field generator and the coil holder; and an electromagnetic conversion unit that detects the relative motion and is mounted on either the magnetic field generator or the coil holder.Type: ApplicationFiled: August 3, 2004Publication date: August 18, 2005Applicant: FUJITSU COMPONENT LIMITEDInventors: Noboru Fujii, Takashi Arita, Nobuyoshi Shimizu, Akio Nakamura, Shinichiro Akieda, Shigemi Kurashima
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Publication number: 20050168394Abstract: A disclosed antenna device includes a plate-like ground plate, and a feeding unit that extends from the ground plate for a predetermined length at a predetermined angle. The feeding unit is constituted by a half-body, which is a body, such as a circular cone, halved by a plane perpendicular to the ground plate, and the feeding unit is prepared perpendicular to the ground plate.Type: ApplicationFiled: October 8, 2004Publication date: August 4, 2005Applicant: FUJITSU COMPONENT LIMITEDInventors: Shigemi Kurashima, Masahiro Yanagi, Hiroto Inoue, Takuya Uchiyama, Junichi Akama, Noboru Fujii, Takashi Arita
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Publication number: 20050170778Abstract: A small-sized and lightweight pointing device and receiving unit reduce power consumption. The receiving unit transmits UWB (Ultra Wide Band) signals simultaneously from an antenna thereof. The pointing device receives the transmitted UWB signals with three antennas thereof. The respective timings when the transmitted UWB signals are received with the three antennas depend on the distances between the transmitting antenna and the three receiving antennas. With this principle, propagation distances from the transmitting antenna to the three receiving antennas are real distances between the transmitting antenna and the three receiving antennas. By applying the principle of triangular surveying to the distances, position coordinates of the pointing device to the receiving unit can be specified. Amount of movement made by the pointing device is calculated based on a change in the position coordinates.Type: ApplicationFiled: October 18, 2004Publication date: August 4, 2005Applicant: Fujitsu Component LimitedInventors: Takuya Uchiyama, Masahiro Yanagi, Shigemi Kurashima
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Publication number: 20050141595Abstract: A communication device performs a radio communication in an ultra wideband with the use of the impulse radio system. The communication device includes a receiver. The receiver is equipped with antennas, a correlation circuit, and a CPU. The antennas receive send signals from a transmitter. The correlation circuit detects a synchronization pulse having a longer cycle than a highly redundant data pulse among received signals. The CPU performs a synchronization process based on the synchronization pulse. The CPU establishes a channel based on the synchronization pulse, and selectively changes the antennas according to the received signal. In the case where the receive signal has not been received for a given period of time after the synchronization is established correlation signals is stopped outputting to start a polling signal. The correlation signals are output to obtain-correlation of the receive signals.Type: ApplicationFiled: December 23, 2004Publication date: June 30, 2005Applicant: FUJITSU COMPONENT LIMITEDInventors: Hiroto Inoue, Shigemi Kurashima, Takuya Uchiyama
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Publication number: 20050077165Abstract: An actuator includes magnets that are arranged in a flat form, coils that face the magnets, a moving member that is connected to the coils, a first holding member that holds the moving member in such a manner that the moving member can slide within a predetermined range; and a second holding member that holds the first holding member in such a manner that the first holding member can slide within a predetermined range in a direction perpendicular to the sliding direction of the moving member. This actuator moves the coils against the magnets.Type: ApplicationFiled: July 24, 2003Publication date: April 14, 2005Applicant: FUJITSU COMPONENT LIMITEDInventors: Shinichiro Akieda, Takashi Arita, Shigemi Kurashima, Hiroto Inoue, Yuriko Nishiyama
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Publication number: 20050038944Abstract: A coordinates input device includes an operation unit that receives an operation input, a vibration generator that applies a vibration to the operation unit, and a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit. The vibration generator includes a power feed unit provided to the operation unit, and a magnetic-field applying unit having sub-units. Each of the sub-units has first and second magnets spaced apart from each other with a given gap. The magnetic flux produced by the first and second magnets crosses a current flowing in the power feed unit.Type: ApplicationFiled: August 6, 2004Publication date: February 17, 2005Applicant: FUJITSU COMPONENT LIMITEDInventors: Keita Harada, Shigemi Kurashima, Nobuyoshi Shimizu, Akio Nakamura, Yuriko Nishiyama, Shinichiro Akieda, Takashi Arita
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Publication number: 20040252104Abstract: In an inputting apparatus which is manipulated with a finger placed on a manipulating section included in the inputting apparatus, the manipulating section is configured to stimulate the tactile sense of the finger used in the manipulating, enabling to confirm the inputting.Type: ApplicationFiled: April 2, 2004Publication date: December 16, 2004Applicant: FUJITSU COMPONENT LIMITEDInventors: Akio Nakamura, Yuriko Nishiyama, Shinichiro Akieda, Shigemi Kurashima, Nobuyoshi Shimizu, Takashi Arita
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Publication number: 20040183788Abstract: A touch panel includes: a first layer and a second layer that are arranged to face each other, with a predetermined gap being formed between the first layer and the second layer; a first resistance film that is formed on a surface of the first layer, the surface facing the second layer; a second resistance film that is formed on a surface of the second layer, the surface facing the first layer; and a power supply unit that is provided on the first resistance film. In this touch panel, the first resistance film and the second resistance film form an antenna.Type: ApplicationFiled: January 29, 2004Publication date: September 23, 2004Applicant: FUJITSU COMPONENT LIMITEDInventors: Shigemi Kurashima, Shinichiro Akieda, Hiroto Inoue, Takashi Arita
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Publication number: 20040178996Abstract: An input device and a driving device able to be made thin and secure sufficiently large vibration amplitude are provided. The input device comprises an input panel, a current conducting element for conducting a driving current, and a magnetic field application unit for applying a magnetic field on the current conducting element. Both of the current conducting element and the magnetic field application unit are arranged in the peripheral region of the input panel. The magnetic field applied by the magnetic field application unit is parallel to the input panel and intersects the current conducting element. When the input panel is touched, a driving current is fed into the current conducting element, and a force is imposed on the current conducting element and the magnetic field application unit, making them move. This movement further drives the input panel to vibrate. Consequently, input operations can be recognized by feeling the vibration of the input panel.Type: ApplicationFiled: October 3, 2003Publication date: September 16, 2004Applicant: FUJITSU COMPONENT LIMITEDInventors: Shigemi Kurashima, Nobuyoshi Shimizu, Akio Nakamura, Yuriko Nishiyama, Shinichiro Akieda, Takashi Arita
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Publication number: 20040125082Abstract: An input device includes: magnets that are arranged in a flat state; coils that are arranged so as to face the magnets, and are moved in relation to the magnets; a mobile member that is connected to the coils; a first guide member that slidably guides the mobile member; a second guide member that slidably guides the first guide member in a direction perpendicular to the sliding direction of the mobile member; and a switch that is operated by an operator to carry out an input operation. In this input device, the switch is formed on the mobile member.Type: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicant: FUJITSU COMPONENT LIMITEDInventors: Shinichiro Akieda, Takashi Arita, Shigemi Kurashima, Hiroto Inoue
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Publication number: 20030039356Abstract: An encryption method includes the steps of (a) generating random data including a first part and a second part, the first part specifying an operation to be performed on plain text data and the second part being used in the operation, (b) performing the specified operation on the plain text data using the second part of the random data, and (c) transmitting a result of the operation together with the random data.Type: ApplicationFiled: June 20, 2002Publication date: February 27, 2003Applicant: NAGANO FUJITSU COMPONENT LIMITEDInventors: Shigemi Kurashima, Norio Endo
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Publication number: 20020057254Abstract: An input system includes an information generation part which generates input information based on a given input operation, a transmission part which transmits signals generated by having a plurality of different carrier frequencies modulated with the input information, and a reception part which receives the transmitted signals and demodulates the signals into the input information.Type: ApplicationFiled: April 20, 2001Publication date: May 16, 2002Applicant: Fujitsu Takamisawa Component LimitedInventors: Shigemi Kurashima, Masahiro Yanagi, Masaya Endo, Shinobu Sasaki, Norio Endo
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Patent number: 6298566Abstract: A device includes a coordinate-detecting sheet and a rotating member having a contact part which circularly slides on the coordinate-detecting sheet. Coordinate data of coordinates of the contact part on the coordinate-detecting sheet is output from the coordinate-detecting sheet.Type: GrantFiled: November 16, 1998Date of Patent: October 9, 2001Assignee: Fujitsu Takamisawa Component LimitedInventors: Michiko Endo, Shigemi Kurashima, Naoyuki Nagao, Takuya Uchiyama, Hiroshi Hasegawa
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Patent number: 5923388Abstract: A touch panel includes a display unit having display elements which are arranged in a first lattice, and an input panel, put on the display unit, having a structure in which transparent resistive films maintained at a predetermined distance by insulating dot spacers are provided on a transparent substrate, the insulating dot spacers being arranged in a second lattice, wherein a relative angle .THETA. between a direction in which the display elements are arranged in the first lattice and a direction in which the insulating dot spacers are arranged in the second lattice falls in a range of 15.degree..ltoreq..THETA..ltoreq.30.degree..Type: GrantFiled: June 30, 1998Date of Patent: July 13, 1999Assignee: Fujistu LimitedInventors: Shigemi Kurashima, Akihiko Sakaguchi, Katsuhiro Kurasawa
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Patent number: 5831691Abstract: A touch panel includes a display unit having display elements which are arranged in a first lattice, and an input panel, put on the display unit, having a structure in which transparent resistive films maintained at a predetermined distance by insulating dot spacers are provided on a transparent substrate, the insulating dot spacers being arranged in a second lattice, wherein a relative angle .theta. between a direction in which the display elements are arranged in the first lattice and a direction in which the insulating dot spacers are arranged in the second lattice falls in a range of 15.degree..ltoreq..theta..ltoreq.30.degree..Type: GrantFiled: February 25, 1997Date of Patent: November 3, 1998Assignee: Fujitsu LimitedInventors: Shigemi Kurashima, Akihiko Sakaguchi, Katsuhiro Kurasawa
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Patent number: 5777606Abstract: A touch panel includes a display unit having display elements which are arranged in a first lattice, and an input panel, put on the display unit, having a structure in which transparent resistive films maintained at a predetermined distance by insulating dot spacers are provided on a transparent substrate, the insulating dot spacers being arranged in a second lattice, wherein a relative angle .THETA. between a direction in which the display elements are arranged in the first lattice and a direction in which the insulating dot spacers are arranged in the second lattice falls in a range of 15.degree..ltoreq..THETA..ltoreq.30.degree..Type: GrantFiled: February 25, 1997Date of Patent: July 7, 1998Assignee: Fujitsu LimitedInventors: Shigemi Kurashima, Akihiko Sakaguchi, Katsuhiro Kurasawa
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Patent number: 5715024Abstract: A touch panel includes a display unit having display elements which are arranged in a first lattice, and an input panel, put on the display unit, having a structure in which transparent resistive films maintained at a predetermined distance by insulating dot spacers are provided on a transparent substrate, the insulating dot spacers being arranged in a second lattice, wherein a relative angle .THETA. between a direction in which the display elements are arranged in the first lattice and a direction in which the insulating dot spacers are arranged in the second lattice falls in a range of 15.degree..ltoreq..THETA..ltoreq.30.degree..Type: GrantFiled: February 25, 1997Date of Patent: February 3, 1998Assignee: Fujitsu LimitedInventors: Shigemi Kurashima, Akihiko Sakaguchi, Katsuhiro Kurasawa
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Patent number: 5698976Abstract: A pointing device includes a plate which is made of a magnetic material and having at least one surface with a regular change in first geometrical configuration along a direction y and a regular change in second geometrical configuration along a direction x which is perpendicular to the direction y, where the change in first geometrical configuration is different from the change in second geometrical configuration, and a coordinate input part slidably provided on the surface of the plate. The coordinate input part comprises a mechanism for generating one of a magnetic flux and magnetic field, and a mechanism for detecting a change in the magnetic flux or magnetic field fed back to the coordinate input part via the plate and generating signals indicating a moving direction and a moving quantity of the coordinate input part on the plate.Type: GrantFiled: August 21, 1995Date of Patent: December 16, 1997Assignee: Fujitsu LimitedInventors: Takashi Nakajima, Shigemi Kurashima
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Patent number: 5640258Abstract: A touch panel includes a display unit having display elements which are arranged in a first lattice, and an input panel, put on the display unit, having a structure in which transparent resistive films maintained at a predetermined distance by insulating dot spacers are provided on a transparent substrate, the insulating dot spacers being arranged in a second lattice, wherein a relative angle .theta. between a direction in which the display elements are arranged in the first lattice and a direction in which the insulating dot spacers are arranged in the second lattice falls in a range of 15.degree..ltoreq..theta..ltoreq.30.degree..Type: GrantFiled: September 7, 1995Date of Patent: June 17, 1997Assignee: Fujitsu LimitedInventors: Shigemi Kurashima, Akihiko Sakaguchi, Katsuhiro Kurasawa
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Patent number: 5585719Abstract: A magnetic sensor including a magnetoresistance effect element directed to prevent deterioration in the detection sensitivity occurring due to inversion of the magnetization of a plurality of ferromagnetic thin film stripes forming the magnetoresistance effect element with respect to the initial direction during the repeated operations, the magnetic sensor being arranged in such a manner that the magnetoresistance effect element is disposed at a position deviating from the center of the magnetic pole surface of a cylindrical magnet, preferably at a position deviating in a direction perpendicular to a direction in which the magnetic object to be detected is moved. The thus-employed arrangement enables a bias magnetic field to be applied to the magnetoresistance effect element in parallel to the deviation direction. Therefore, the magnetization of all of the plurality of the ferromagnetic thin film stripes forming the magnetoresistance effect element can be caused to face the same direction.Type: GrantFiled: March 4, 1994Date of Patent: December 17, 1996Assignee: Fujitsu LimitedInventors: Michiko Endo, Nobuyoshi Shimizu, Shigemi Kurashima, Hiroshi Kajitani, Shigeo Tanji, Mieko Kawamoto