Patents by Inventor Atsushi Nakagawa
Atsushi Nakagawa 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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Patent number: 7694962Abstract: When a comparative determination portion determines that passage of a sheet through a reference position is lagged based on a detecting signal from a passing timing detection unit, a sheet conveying speed of a skew feeding correction roller on the same side as that of a sensor which detects the lagged sheet in two sensors is increased to correct sheet skew feeding. When the comparative determination portion determines that passage of a sheet through a reference position is leaded, the sheet conveying speed of the skew feeding correction roller on the same side as that of a sensor which detects the leaded sheet in the two sensors is reduced to correct sheet skew feeding.Type: GrantFiled: November 27, 2007Date of Patent: April 13, 2010Assignee: Canon Kabushiki KaishaInventors: Masaaki Morya, Hidehiko Kinoshita, Jun Yamaguchi, Atsushi Nakagawa
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Patent number: 7693487Abstract: A radio communication apparatus includes a carriage path through which a radio communication medium is carried, a communication antenna provided in the carriage path, and a detector provided on an upstream side of the antenna in a carrying direction of the moving radio communication medium. The detector detects the passing radio communication medium. A radio main unit detects the radio communication medium by using the detector, and transmits a polling command to the radio communication medium at a proper timing on the basis of a detection signal from the detector. Thereby, it is possible to transmit a polling command from the radio main unit to the radio communication medium at a proper timing when the radio communication medium comes to a communication area of the antenna.Type: GrantFiled: January 9, 2006Date of Patent: April 6, 2010Assignee: Kabushiki Kaisha ToshibaInventor: Atsushi Nakagawa
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Patent number: 7692978Abstract: A semiconductor device includes a first memory; and a voltage adjusting portion configured to receive a first voltage, a second voltage higher than the first voltage, and a third voltage higher than the second voltage. The first memory includes: a memory cell configured to be connected to a word line and a bit line, a word-line driving circuit configured to drive the word line, and a sense amplifier configured to sense information stored in the memory cell. The voltage adjusting portion includes: a voltage modifying circuit configured to step down or boost up the third voltage at a predetermined mode to generate a fourth voltage higher than the second voltage, and supply the fourth voltage to the sense amplifier or the word-line driving circuit.Type: GrantFiled: May 23, 2008Date of Patent: April 6, 2010Assignee: NEC Electronics CorporationInventors: Hiroyuki Takahashi, Atsushi Nakagawa
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Patent number: 7677558Abstract: A sheet conveying device for conveying a sheet includes a displacement-amount detector configured to detect an amount of displacement of a conveyed sheet from a conveyance reference in a width direction being substantially perpendicular to a sheet conveying direction and a plurality of sheet conveying roller portions configured to be shiftable in a direction substantially perpendicular to the sheet conveying direction while pinching the sheet having the amount of displacement detected by the displacement-amount detector. Before the sheet reaches the sheet conveying roller portions, the sheet conveying roller portions are shifted based on the amount of displacement detected by the displacement-amount detector from a conveyance-reference position in a direction in which the sheet is displaced. After the sheet reaches the sheet conveying roller portions, the sheet conveying roller portions are shifted while pinching the sheet so as to reduce the amount of displacement.Type: GrantFiled: April 1, 2008Date of Patent: March 16, 2010Assignee: Canon Kabushiki KaishaInventors: Hidehiko Kinoshita, Masaaki Moriya, Jun Yamaguchi, Atsushi Nakagawa
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Patent number: 7663945Abstract: A cell core unit and its peripheral circuit are driven by a relatively low voltage power supply. A constant voltage that does not depend on the power supply voltage is provided as a boosted voltage (VBOOST) to be supplied to a control signal for a word line of the cell core unit. A sense amplifier amplifies a higher voltage level of a bit line to the power supply voltage. Then, a circuit for generating a signal for defining the transition timing and/or the pulse width of a control signal from the peripheral circuit to the cell core unit performs signal delay using a delay circuit having a characteristic in which a delay time thereof decreases with reduction of the provided power supply voltage.Type: GrantFiled: October 12, 2007Date of Patent: February 16, 2010Assignee: NEC Electronics CorporationInventors: Hiroyuki Takahashi, Takuya Hirota, Atsushi Nakagawa
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Patent number: 7652943Abstract: Disclosed is a semiconductor memory device having memory cells that are in need of refresh for data retention, includes control circuits for necessarily generating the refresh immediately before the read/write operation, and for setting the latency to a first fixed value at all times, for the first mode during the testing, and for necessarily generating the refresh immediately after the read/write operation, and for setting the latency to a second fixed value at all times, for the second mode during the testing.Type: GrantFiled: August 17, 2005Date of Patent: January 26, 2010Assignee: NEC Electronics CorporationInventors: Hiroyuki Takahashi, Atsushi Nakagawa, Takuya Kera, Masaki Miyata, Yasunari Kawaguchi, Kouichi Gotou
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Patent number: 7643783Abstract: A CMOS sensor scans an image that is either on a transfer material carrier or on a transfer material that is placed on the transfer material carrier. A sampling timing controller samples an image signal at a predetermined sampling rate and computes a position of a predetermined pattern contained within the sampled image signal. A speed computation processor computes a moving speed of either the transfer material carrier or the transfer material, based on the position of the predetermined pattern thus sampled at the predetermined sampling rate and computed, as well as the predetermined sampling rate. The image region that the CMOS sensor scans is determined in accordance with the rotational speed of the drive motor and the sampling rate.Type: GrantFiled: September 5, 2007Date of Patent: January 5, 2010Assignee: Canon Kabushiki KaishaInventors: Atsushi Nakagawa, Hidehiko Kinoshita, Jun Yamaguchi, Masaaki Moriya, Manabu Mizuno
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Patent number: 7638202Abstract: A stretched polyamide film including at least one stretched layer made of a mixed resin containing a polyamide resin and a modified polyester-based elastomer Y. The polyamide resin X is mainly constituted by m-xylylenediamine unit and C6-12 ?,?-aliphatic dicarboxylic acid unit. The modified polyester-based elastomer is graft-modified with an ethylenically unsaturated carboxylic acid or its anhydride. Such stretched polyamide film is drastically improved in the flexibility, impact resistance and pin-hole resistance with little reduction in the gas-barrier properties while retaining an enough transparency to practical use.Type: GrantFiled: September 21, 2006Date of Patent: December 29, 2009Assignees: Mitsubishi Gas Chemical Company, Inc., Mitsubishi Chemical CorporationInventors: Hiroyuki Nanba, Kenji Kouno, Atsushi Nakagawa
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Patent number: 7635877Abstract: A nitride semiconductor device including an ohmic electrode with low contact resistance and manufacturing method thereof including a first nitride semiconductor layer made of a III-V group nitride semiconductor layer deposited on a substrate, a second nitride semiconductor layer including the III-V group nitride semiconductor layer whose film formation temperature is lower than that of the first nitride semiconductor layer and being deposited on the first nitride semiconductor layer and not including aluminum. An ohmic electrode is then formed through forming a metal pattern making ohmic contact on the second nitride semiconductor layer being unprocessed crystallinity with minute grains, and then heat treating the metal pattern.Type: GrantFiled: April 21, 2005Date of Patent: December 22, 2009Assignee: New Japan Radio Co., Ltd.Inventors: Eiji Waki, Atsushi Nakagawa
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Patent number: 7609983Abstract: When an abnormality factor occurs in a second heating device, a sheet located upstream of a branch portion is discharged onto a discharge tray through a second conveying path. After the abnormality factor in the second heating device is removed and the sheet discharged to the discharge tray through the second conveying path is set in a paper refeeding tray, a sheet feeding portion feeds the sheet set in the paper refeeding tray to the second heating device.Type: GrantFiled: September 12, 2006Date of Patent: October 27, 2009Assignee: Canon Kabushiki KaishaInventors: Hidehiko Kinoshita, Jun Yamaguchi, Atsushi Nakagawa, Masaaki Moriya
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Patent number: 7601573Abstract: A nitride semiconductor device, which includes a III-V Group nitride semiconductor layer being composed of a III Group element consisting of at least one of a group containing of gallium, aluminum, boron and indium and V Group element consisting of at least nitrogen among a group consisting of nitrogen, phosphorus and arsenic, including a first nitride semiconductor layer including the III-V Group nitride semiconductor layer being deposited on a substrate, a second nitride semiconductor layer including the III-V Group nitride semiconductor layer being deposited on the first nitride semiconductor and not containing aluminum and a control electrode making Schottky contact with the second nitride semiconductor layer wherein the second nitride semiconductor layer includes a film whose film forming temperature is lower than the first nitride semiconductor layer.Type: GrantFiled: September 27, 2007Date of Patent: October 13, 2009Assignee: New Japan Radio Co., Ltd.Inventor: Atsushi Nakagawa
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Patent number: 7586511Abstract: Disclosed are a frequency modulation apparatus and a frequency modulation method for generating an image clock that is used for turning on/off a laser beam that scans an image bearing member, such as a photosensitive drum. The frequency modulation apparatus divides, into a plurality of segments for each pixel, a main scan line on an image bearing member, and calculates auxiliary clock periods based on a reference clock period and variable-magnification coefficients corresponding to the segments. Then, the frequency modulation apparatus generates image clocks for the respective segments based on an initial predesignated period value and the obtained auxiliary clock periods. Furthermore, the frequency modulation apparatus includes a detecting device for detecting a difference between a reference value stored in a memory and an actual laser irradiation location, and corrects a shift in the laser irradiation location in accordance with the detection results obtained by the detecting device.Type: GrantFiled: July 19, 2006Date of Patent: September 8, 2009Assignee: Canon Kabushiki KaishaInventors: Yuichi Seki, Satoshi Endo, Atsushi Nakagawa
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Patent number: 7579730Abstract: A motor main body includes a brush holder, which holds a plurality of power supply brushes. A control circuit member includes a drive control IC, which controls rotation of the motor main body, and a base, which holds a plurality of terminals that electrically connects between the drive control IC and the plurality of power supply brushes of the brush holder. The base is supported by the brush holder.Type: GrantFiled: October 26, 2006Date of Patent: August 25, 2009Assignee: ASMO Co., Ltd.Inventors: Kazutaka Sakohira, Hiroaki Yamamoto, Atsushi Nakagawa
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Publication number: 20090202851Abstract: It is an object of the present invention to provide a heat-shrinkable multilayer film which, in the case of using the heat-shrinkable multilayer film as a heat-shrinkable label for a container, does not produce delamination in covering a container, is superior in heat resistance, oil resistance, tearing properties along the perforation and appearance and can prevent the reduction in strength between the layers after a printing step, and a heat-shrinkable label comprising the heat-shrinkable multilayer film as a base film. The present invention is a heat-shrinkable multilayer film which comprises: an outer surface layer comprising a polyester type resin; and an intermediate layer comprising a polystyrene type resin, said outer surface layer and said intermediate layer being laminated by interposing an adhesive layer comprising a polyester type elastomer or a modified polyester type elastomer.Type: ApplicationFiled: July 11, 2007Publication date: August 13, 2009Applicants: GUNZE LIMITED, Mitsubishi Chemical CorporationInventors: Naoyuki Maruichi, Takanori Nozaki, Akira Morikawa, Atsushi Nakagawa
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Patent number: 7528350Abstract: The present invention provides a novel method for electrical connection between a polymer PTC device and a metal lead element to thereby prevent the problems of the connection by caulking or soldering. For this purpose, the present invention provides a process for producing a connection structure by laser welding, said connection structure having (A) a PTC device (10) including (i) a laminar polymer PTC element (12) and (ii) a metal foil electrode (14) disposed on a main surface of the laminar polymer PTC element (12), and (B) a metal lead element (20) electrically connected to the metal foil electrode. The metal foil electrode (14) has at least two metal layers, one of which, the X-th layer, has laser beam absorption a % that is the lowest among the metal layers of the metal foil electrode (14). The X-th layer is present between a first metal layer (18) of the metal foil electrode and the laminar polymer PTC element (12).Type: GrantFiled: September 3, 2003Date of Patent: May 5, 2009Assignee: Tyco Electronics Raychem KKInventors: Atsushi Nakagawa, Arata Tanaka, Mikio Iimura
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Patent number: 7515925Abstract: A reader/writer of a wireless communication device transmits a carrier signal from an antenna, and if there is not response from an IC card within a preset time after transmitting the polling command, the carrier signal is temporarily controlled to an OFF state.Type: GrantFiled: December 29, 2004Date of Patent: April 7, 2009Assignee: Kabushiki Kaisha ToshibaInventor: Atsushi Nakagawa
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Publication number: 20090071280Abstract: A housing is made of resin and receives a worm. A worm wheel is made of resin and is received in the housing to mesh with the worm. A support shaft includes a shaft portion and a boss portion. The shaft portion rotatably supports the worm wheel. The boss portion is made of metal and is fixed to the housing. The boss portion holds the shaft portion and includes a slidably engaging surface that slidably engages the worm wheel.Type: ApplicationFiled: July 22, 2008Publication date: March 19, 2009Applicant: ASMO CO., LTD.Inventor: Atsushi Nakagawa
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Publication number: 20090073744Abstract: A semiconductor storage device according to one aspect of the present invention includes a DRAM cell including one transistor and one capacitor, in which one of a first voltage and a second voltage is applied to a gate of the transistor, the first voltage being a selected voltage, and the second voltage being a non-selected voltage, a voltage difference between the first voltage and the second voltage is larger than a voltage difference between a power supply voltage and a ground voltage, and one of the ground voltage and the power supply voltage which is closer to the non-selected voltage is applied to a back gate of the transistor irrespective of selection or non-selection.Type: ApplicationFiled: September 11, 2008Publication date: March 19, 2009Applicant: NEC ELECTRONICS CORPORATIONInventors: Hiroyuki Takahashi, Atsushi Nakagawa
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Publication number: 20090033029Abstract: A sheet conveying device for conveying a sheet includes a displacement-amount detector configured to detect an amount of displacement of a conveyed sheet from a conveyance reference in a width direction being substantially perpendicular to a sheet conveying direction and a plurality of sheet conveying roller portions configured to be shiftable in a direction substantially perpendicular to the sheet conveying direction while pinching the sheet having the amount of displacement detected by the displacement-amount detector. Before the sheet reaches the sheet conveying roller portions, the sheet conveying roller portions are shifted based on the amount of displacement detected by the displacement-amount detector from a conveyance-reference position in a direction in which the sheet is displaced. After the sheet reaches the sheet conveying roller portions, the sheet conveying roller portions are shifted while pinching the sheet so as to reduce the amount of displacement.Type: ApplicationFiled: April 1, 2008Publication date: February 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Hidehiko Kinoshita, Masaaki Moriya, Jun Yamaguchi, Atsushi Nakagawa
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Patent number: 7466609Abstract: A cell core unit and its peripheral circuit are driven by a relatively low voltage power supply. A constant voltage that does not depend on the power supply voltage is provided as a boosted voltage (VBOOST) to be supplied to a control signal for a word line of the cell core unit. A sense amplifier amplifies a higher voltage level of a bit line to the power supply voltage. Then, a circuit for generating a signal for defining the transition timing and/or the pulse width of a control signal from the peripheral circuit to the cell core unit performs signal delay using a delay circuit having a characteristic in which a delay time thereof decreases with reduction of the provided power supply voltage.Type: GrantFiled: July 31, 2007Date of Patent: December 16, 2008Assignee: NEC Electronics CorporationInventors: Hiroyuki Takahashi, Takuya Hirota, Atsushi Nakagawa