Patents by Inventor Hiroyuki Nakata
Hiroyuki Nakata 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: 20100321549Abstract: An amplifier control device controls an amplifier which amplifies a first signal supplied from an image-pickup element, and supplies a second signal acquired by amplification of the first signal to a signal processing unit which is a following stage. The amplifier control device comprises a control unit which changes a current supplied to the amplifier depending on whether or not the first signal supplied to the amplifier is used for image data.Type: ApplicationFiled: May 5, 2010Publication date: December 23, 2010Applicant: Casio Computer Co., Ltd.Inventors: Takashi ITOH, Hiroyuki Nakata, Motoyuki Kashiwagi
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Publication number: 20100321516Abstract: In a digital camera apparatus, drive mode of CCD is set to AF mode in AF controlling operation (at step S4), and is set to a capture mode in a shooting operation (at step S12). AFE for processing an image signal output from CCD is held in a halt state during a rapid sweeping period, in which unnecessary charge that is not used as pixel information is discharged (at steps S5, S9, S13, S17), whereby power consumed by AFE in a shooting mode is reduced.Type: ApplicationFiled: June 7, 2010Publication date: December 23, 2010Applicant: Casio Computer Co., Ltd.Inventors: Motoyuki Kashiwagi, Hiroyuki Nakata, Takashi Itoh
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Patent number: 7842904Abstract: A torch is moved by a manipulator in a direction separating from a base material 7 while a wire is supplied, whereby an actuator driving the robot manipulator can control a velocity of the wire for a workpiece by a unidirectional operation of separating the torch, and vibration due to reverse of torch velocity is not generated. Further, by using a dedicated separation control system, velocity follow-up performance of the actuator moving the torch can be heightened without increasing overshoot in the usual operation time, and the acceleration and deceleration time of the manipulator can be reduced.Type: GrantFiled: October 18, 2005Date of Patent: November 30, 2010Assignee: Panasonic CorporationInventors: Hiroyuki Nakata, Yasushi Mukai, Tatsuya Ikeda, Naoto Masunaga, Masaru Kowa, Yasuyoshi Honuchi
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Patent number: 7680551Abstract: An industrial robot includes a first member, a positioning member arranged to be attached to the first member, a second member arranged to rotate relative to the first member, and a first joint for coupling the first member with the second member. The second member has a contact point arranged to contact the positioning member. An indication for requesting to enable the positioning member to contact the contact point is displayed. The second member rotates at the first joint relatively to the first member while the positioning member can contact the contact point. It is detected whether or not the contact point of the second member contacts the positioning member. A position of the second member is stored as an origin when it is detected that the contact point of the second member contacts the positioning member. This method prevents a possible failure of the attaching of the positioning member, and decreases a work load on an operator.Type: GrantFiled: October 24, 2005Date of Patent: March 16, 2010Assignee: Panasonic CorporationInventors: Tatsuya Ikeda, Hiroyuki Nakata, Seiji Iwai
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Patent number: 7589769Abstract: In a camera having a gamma-correction circuit on an output signal processing path of a CCD, an incident light path leading to the CCD is kept opening in a state where nonlinear gamma-correction processing in the gamma-correction processing circuit is prohibited, first image data (CCD output data; DATA1) are generated based on electric signal output from the CCD, incident light path leading to the CCD is kept closing, second image data (CCD output data; DATA2) are generated based on electric signal output from the CCD and lastly, the second image data DATA2 are subtracted from the first image data DATA1, thereby correcting to eliminate dark voltage component included in the first image data DATA1.Type: GrantFiled: April 26, 2004Date of Patent: September 15, 2009Assignee: Casio Computer Co., Ltd.Inventors: Hiroyuki Nakata, Noriyasu Murata
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Patent number: 7525066Abstract: In a consumable electrode type welding method, while feeding a welding wire 1, a welding torch 4 is moved by a robot manipulator 9 in a direction where the welding torch 4 is pulled apart from a base metal 7, so that an initial arc is generated while the welding wire 1 is separated from the base metal 7. This not only can eliminate the need for the reversing operation of the robot manipulator 9 and thus can reduce the waste time to thereby be able to reduce a tact time but also can stabilize an arc in the welding start portion and thus can reduce the “unexpected stop” effectively.Type: GrantFiled: June 27, 2005Date of Patent: April 28, 2009Assignee: Panasonic CorporationInventors: Yasushi Mukai, Atsuhiro Kawamoto, Tatsuya Ikeda, Hiroyuki Nakata, Masaru Kowa
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Publication number: 20080255701Abstract: An industrial robot includes a first member, a positioning member arranged to be attached to the first member, a second member arranged to rotate relatively to the first member, and a first joint for coupling the first member with the second member. The second member has a contact point arranged to contact the positioning member. An indication for requesting to enabling the positioning member to contact the contact point is displayed. The second member rotates at the first joint relatively to the first member while the positioning member can contact the contact point. It is detected whether or not the contact point of the second member contacts the positioning member. A position of the second member is stored as an origin when it is detected that the contact point of the second member contacts the positioning member. This method prevents a possible failure of the attaching of the positioning member, and decreases a work load on an operator.Type: ApplicationFiled: October 24, 2005Publication date: October 16, 2008Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Tatsuya Ikeda, Hiroyuki Nakata, Seiji Iwai
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Publication number: 20080169276Abstract: In a conventional consumable electrode type welding method, owing to the need of the reversing operation of a robot manipulator, an extra response time as well as acceleration and deceleration times are necessary and, at the same time, the feed speed of a welding wire is not be able to catch up with the melting speed of the welding wire to thereby extend the length of an arc, resulting in the unstable arc. In a consumable electrode type welding method according to the invention, while feeding a welding wire 1, a welding torch 4 is moved by a robot manipulator 9 in a direction where the welding torch 4 is pulled apart from a base metal 7, so that an initial arc is generated while the welding wire 1 is separated from the base metal 7. This not only can eliminate the need for the reversing operation of the robot manipulator 9 and thus can reduce the waste time to thereby be able to reduce a tact time but also can stabilize an arc in the welding start portion and thus can reduce the “unexpected stop” effectively.Type: ApplicationFiled: June 27, 2005Publication date: July 17, 2008Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Yasushi Mukai, Atsuhiro Kawamoto, Tatsuya Ikeda, Hiroyuki Nakata, Masaru Kowa
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Publication number: 20070119841Abstract: A torch is moved by a manipulator in a direction separating from a base material 7 while a wire is supplied, whereby an actuator driving the robot manipulator can control a velocity of the wire for a workpiece by a unidirectional operation of separating the torch, and vibration due to reverse of torch velocity is not generated. Further, by using a dedicated separation control system, velocity follow-up performance of the actuator moving the torch can be heightened without increasing overshoot in the usual operation time, and the acceleration and deceleration time of the manipulator can be reduced.Type: ApplicationFiled: October 18, 2005Publication date: May 31, 2007Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Nakata, Yasushi Mukai, Tatsuya Ikeda, Naoto Masunaga, Masaru Kowa, Yasuyoshi Honuchi
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Publication number: 20060270252Abstract: An electrical connection box comprises: a stud bolt comprising a head portion having a rectangular shape where a short side D1 has; and a shaft portion having a center; a terminal; and a housing. The housing comprises a recess potion fixing the head portion; and an outer periphery holding portion. The recess portion has a long side serving as an attaching side edge intersecting with an extending side of the terminal. The terminal comprises: a bolt hole through which the shaft portion passes to be fastened by a nut; and a horizontal portion extending from an outer end edge of the housing to a side of the stud bolt. The horizontal portion is connected to a wire distal end. A dimension of the outer periphery holding portion from the outer end edge is T1. A dimension L1 from the outer end edge to the center is set to (D1/2)+T1.Type: ApplicationFiled: May 30, 2006Publication date: November 30, 2006Applicants: SUMITOMO WIRING SYSTEMS, LTD., KYUNGSHIN INDUSTRIAL CO., LTD.Inventors: Haruhiro Muto, Hiroyuki Nakata, Kim Dam
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Patent number: 7102315Abstract: When either a command value or an actually measured value is appropriately selected as an angular velocity used for the frictional torque calculation, the frictional compensation can be made valid at all times in both the case in which a robot is actively operated according to an angular velocity command and the case in which the robot is passively operated being pushed by an external force. In the case where a motor rotating direction and a collision direction are reverse to each other after a collision has been detected, the control mode is switched from the positional control to the electric current control and a torque, the direction of which is reverse to the direction of the motor rotation is generated by the motor, so that the motor rotating speed can be reduced and the collision energy can be alleviated.Type: GrantFiled: July 2, 2004Date of Patent: September 5, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Nakata, Naoto Masunaga, Atsumi Hashimoto, Yasushi Mukai
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Patent number: 7071989Abstract: A flash device is provided which causes a plurality of light emitting elements to emit desired white strobe light independent of possible uneven brightnesses of light being emitted by light emitting used. Red, green and blue light emitting elements are driven to emit corresponding colored rays of light to thereby provide white strobe light. Percentages of respective total light emission times of the light emitting elements are determined depending on the percentage data of light being emitted by those light emitting elements and stored in memory.Type: GrantFiled: September 9, 2002Date of Patent: July 4, 2006Assignee: Casio Computer Co., Ltd.Inventor: Hiroyuki Nakata
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Publication number: 20060071625Abstract: When either a command value or an actually measured value is appropriately selected as an angular velocity used for the frictional torque calculation, the frictional compensation can be made valid at all times in both the case in which a robot is actively operated according to an angular velocity command and the case in which the robot is passively operated being pushed by an external force. In the case where a motor rotating direction and a collision direction are reverse to each other after a collision has been detected, the control mode is switched from the positional control to the electric current control and a torque, the direction of which is reverse to the direction of the motor rotation is generated by the motor, so that the motor rotating speed can be reduced and the collision energy can be alleviated.Type: ApplicationFiled: July 2, 2004Publication date: April 6, 2006Inventors: Hiroyuki Nakata, Naoto Masunaga, Atsumi Hashimoto, Yasushi Mukai
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Publication number: 20060027390Abstract: To suppress a temperature-rise in and to improve the quality of a bus bar when a desired width for the bus bar is not ensured, a bus bar is formed by stamping from a conductive metal plate of a predetermined thickness. The bus bar is configured to be included in an electric junction box for installation in an automobile. The bus bar includes a main bus bar formed by stamping from a conductive metal plate according to a circuit pattern and an auxiliary bus bar that is laminated and firmly fixed at a location on the main bus bar where the main bus bar cannot be stamped with a desired width. The auxiliary bus bar is fixed to the main bus bar, for example, by welding, to form an integrated combination. At the welded portion of the integrated combination, the width of the main bus bar or the width of the auxiliary bus bar is no greater than other portions.Type: ApplicationFiled: August 4, 2005Publication date: February 9, 2006Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Tatsuo Suzuki, Shinshu Kato, Hiroyuki Nakata, Ingyu Paku
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Publication number: 20040196393Abstract: In a camera having a gamma-correction circuit on an output signal processing path of a CCD, an incident light path leading to the CCD is kept opening in a state where nonlinear gamma-correction processing in the gamma-correction processing circuit is prohibited, first image data (CCD output data; DATA1) are generated based on electric signal output from the CCD, incident light path leading to the CCD is kept closing, second image data (CCD output data; DATA2) are generated based on electric signal output from the CCD and lastly, the second image data DATA2 are subtracted from the first image data DATA1, thereby correcting to eliminate dark voltage component included in the first image data DATA1.Type: ApplicationFiled: April 26, 2004Publication date: October 7, 2004Applicant: CASIO COMPUTER CO., LTD.Inventors: Hiroyuki Nakata, Noriyasu Murata
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Patent number: 6779243Abstract: A grommet having a resin inner sleeve which is adapted to receive a connector that is installed on a wire harness. The grommet is insertable into a penetration hole of a car body panel of an automobile. The inner sleeve includes a car body hooking hook that is arranged on an outer face of a peripheral wall. The inner sleeve is stored and fixed in an enlarged tubular portion and includes a peripheral wall having a bottom face. A grommet main body is made of an elastomer and includes the enlarged tubular portion located at one end of a small diameter tubular portion which is adapted to receive electric wires. A connector is fixable in the inner sleeve by locking and includes a terminal insertion face. The bottom face of the peripheral wall abuts on a bottom wall of the enlarged tubular portion. A large space is provided between the terminal insertion face of the connector and the bottom wall of the enlarged tubular portion.Type: GrantFiled: June 25, 2002Date of Patent: August 24, 2004Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Hiroyuki Nakata
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Patent number: 6747696Abstract: In a camera having a gamma-correction circuit on an output signal processing path of a CCD, an incident light path leading to the CCD is kept opening in a state where nonlinear gamma-correction processing in the gamma-correction processing circuit is prohibited, first image data (CCD output data; DATA1) are generated based on electric signal output from the CCD, incident light path leading to the CCD is kept closing, second image data (CCD output data; DATA2) are generated based on electric signal output from the CCD and lastly, the second image data DATA2 are subtracted from the first image data DATA1, thereby correcting to eliminate dark voltage component included in the first image data DATA1.Type: GrantFiled: March 21, 2000Date of Patent: June 8, 2004Assignee: Casio Computer Co., Ltd.Inventors: Hiroyuki Nakata, Noriysau Murata
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Patent number: 6720516Abstract: An electrode discharge machining apparatus includes a first holder for holding a workpiece to be subjected to electro discharge machining, an electrode provided opposing the workpiece held by the first holder, a capacitor for supplying electric charge to the electrode and the workpiece so as to generate pulse electro discharge between the workpiece and the electrode, a power source for applying a voltage to the capacitor, a switching element provided between the capacitor, and at least one of the electrode, the workpiece and the power source, a switch controller for controlling on and off of the switching element, a current detecting element for detecting a current flowing between the workpiece and the electrode, and a control unit for, based on the current detected by the current detecting element, judging whether or not a short circuit occurs between the workpiece and the electrode.Type: GrantFiled: December 12, 2001Date of Patent: April 13, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshio Yamada, Takeshi Masaki, Toru Nakagawa, Hiroyuki Nakata, Hirofumi Yasumoto, Toshihiko Wada
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Patent number: 6600105Abstract: A grommet for installing a wire harness into a penetration hole of a car body panel of an automobile. The grommet includes an inner sleeve made of a resin that is configured to store and lock a connector. The inner sleeve is firmly stored in an enlarged tubular portion. A grommet main body is made of an elastomer and includes the enlarged tubular portion located at one end of a small diameter tubular portion through which electric wires of the wire harness may pass. A fixation locking hook for fastening the grommet to the car body panel is provided. The fixation locking hook protrudes from an outer face of one side of a peripheral wall of the inner sleeve. A movable locking hook is arranged on another side of the peripheral wall of the inner sleeve. The movable locking hook is arranged on a movable piece and is located between two side grooves arranged in the peripheral wall.Type: GrantFiled: June 14, 2002Date of Patent: July 29, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Hiroyuki Nakata, Yukinori Morishita, Tetsuaki Wada, Takayuki Hieda
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Patent number: 6600104Abstract: A grommet configured to be installed on a wire harness and to be inserted in a penetration hole of a car body panel of an automobile, the grommet includes an inner sleeve made of a resin configured to store therein a connector, a grommet main body made of an elastomer and having an enlarged tubular portion and a small diameter tubular portion configured to receive electrical wires. The inner sleeve protrudes from the large diameter tubular portion and includes a peripheral wall having four corners and locking hooks configured to be inserted into the penetration hole. One locking hook is located on an outer face of one side of a rectangular or near-squared shaped frame. Another locking hook is located on an outer face of an opposite side of the rectangular or near-squared shaped frame. At least one of the four corners of the peripheral wall is notched.Type: GrantFiled: June 14, 2002Date of Patent: July 29, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Hiroyuki Nakata, Yukinori Morishita, Tetsuaki Wada, Takayuki Hieda