Patents by Inventor Tatsuya Koyama
Tatsuya Koyama 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: 9122218Abstract: An image forming device including: an image forming unit; a heating body; a power supply unit; a temperature sensing member; and a controller. The image forming unit is configured to form an image on a recording sheet. The heating body is configured to heat the recording sheet on which the image is formed. The power supply unit is configured to supply power to the heating body. The temperature sensing member is configured to detect a temperature of the heating body. The controller is configured to: control the power supply unit based on the detected temperature; determine whether or not a high-power output state of the power supply unit has continued for a first duration under a print control process; and judge that the temperature sensing member is in an abnormal state when determination is made so that the high-power output state has continued for the first duration.Type: GrantFiled: January 28, 2014Date of Patent: September 1, 2015Assignee: Brother Kogyo Kabushiki KaishaInventors: Tatsuya Koyama, Atsushi Ozawa
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Publication number: 20150151204Abstract: The game program according to the present invention receives selection operation input from a player by allowing the player to select any character from among multiple characters. Then, it is determined whether the received selection operation input is one of a first selection operation input and a second selection operation input. If the first selection operation input is received, the character is configured as a source material character used to vary parameter values configured in the base character up to an upper limit, and, in addition, if the second selection operation input is received, then the character is configured as a source material character used to enable the parameter values configured in the base character to be increased beyond the upper limit.Type: ApplicationFiled: November 3, 2014Publication date: June 4, 2015Inventors: Kyohei YAMAGUCHI, Tatsuya KOYAMA
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Patent number: 9031442Abstract: An image-forming apparatus includes: a fixing device; a power supply unit; a non-contact temperature sensor; and a control device. The fixing device has a heating member. The power supply unit is configured to supply electric power to the heating member. The non-contact temperature sensor is disposed in a position separate from the heating member and configured to detect temperature of the heating member. A first function and a second function respectively produce a first corrected temperature value and a second corrected temperature value smaller than the first corrected temperature value with respect to a given detected temperature. The control device is configured to: select the first function to correct the detected temperature at a start of a print control process; switch from the first function to the second function at a prescribed timing during the print control process; and control the power supply unit based on the corrected temperature.Type: GrantFiled: November 27, 2013Date of Patent: May 12, 2015Assignee: Brother Kogyo Kabushiki KaishaInventors: Tatsuya Koyama, Yuki Fukusada
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Patent number: 8983351Abstract: A fixing device includes a tubular member, a nip member, a backup member, and a bias member. The tubular member has an outer peripheral surface, an inner peripheral surface defining an internal space, and an axis defining an axis direction. The nip member is in contact with the inner peripheral surface. The backup member is opposed to the nip member and in contact with the outer peripheral surface to form a nip region for nipping a sheet conveyed in a conveying direction orthogonal to the axis direction. The backup member is configured to move in the conveying direction and the tubular member is configured to circularly move around the axis in accordance with the movement of the backup member due to a friction force generated between the tubular member and the backup member. The bias member protrudes toward the backup member through a bias region.Type: GrantFiled: December 22, 2011Date of Patent: March 17, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Tatsuya Koyama
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Patent number: 8965225Abstract: In an image-forming apparatus, a sheet detector detects the recording sheet conveyed from the sheet accommodating unit by the pickup roller. A fixing unit includes a heating member configured to heat the recording sheet. A power supply unit supplies the heating member with electric power. A control device is configured to: output a signal controlling the pickup roller to convey the recording sheet from the sheet accommodating unit; determine, based on a detection result of the sheet detector, whether the pickup roller succeeds in conveying the recording sheet from the sheet accommodating unit; control the power supply unit to supply the heating member with the electric power such that the electric power per unit time does not exceed an upper limit; and set the upper limit depending on a determination result of whether the pickup roller succeeds in conveying the recording sheet from the sheet accommodating unit.Type: GrantFiled: November 27, 2013Date of Patent: February 24, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Tatsuya Koyama
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Patent number: 8958740Abstract: An apparatus configured to discharge sheets may include pressing mechanism configured to downwardly press discharged sheets. For example, the pressing mechanism may include a first pressing member and a second pressing member. The first pressing member and the second pressing member may be located at least partially overlapping positions in the width-wise direction of the sheet. Additionally or alternatively, each of the first pressing member and the second pressing member may be configured to contact the sheet at different positions along a discharge direction. In one example, the different portions may be spaced apart from each other in the discharge direction.Type: GrantFiled: February 28, 2012Date of Patent: February 17, 2015Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasunori Watanabe, Tatsuya Koyama
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Patent number: 8795060Abstract: A game processing server apparatus providing a game service to a plurality of terminal devices connected with each other via a network, includes a game data generation unit that generates game data in the game service; a player information storing unit that stores player information including registration date data indicating a date when the player operating the terminal device is registered in the game service; and a group allocation unit that determines a player group to which the player belongs based on the registration date data of the player, wherein the game data generation unit generates game data for training, which is different from normal game data, to the player who belongs to the player group.Type: GrantFiled: July 9, 2013Date of Patent: August 5, 2014Assignee: DeNA Co., Ltd.Inventors: Yoshitaka Matsumoto, Kazuhiro Kondo, Shonosuke Tokumaru, Masataka Okihara, Kosuke Takami, Tatsuya Koyama
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Publication number: 20140212156Abstract: An image forming device including: an image forming unit; a heating body; a power supply unit; a temperature sensing member; and a controller. The image forming unit is configured to form an image on a recording sheet. The heating body is configured to heat the recording sheet on which the image is formed. The power supply unit is configured to supply power to the heating body. The temperature sensing member is configured to detect a temperature of the heating body. The controller is configured to: control the power supply unit based on the detected temperature; determine whether or not a high-power output state of the power supply unit has continued for a first duration under a print control process; and judge that the temperature sensing member is in an abnormal state when determination is made so that the high-power output state has continued for the first duration.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Applicant: Brother Kogyo Kabushiki KaishaInventors: Tatsuya Koyama, Atsushi Ozawa
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Publication number: 20140153977Abstract: An image forming apparatus includes a fixing unit, discharge unit, first and second guides, and top cover. The discharge unit is disposed obliquely above a heating member of the fixing unit. The first guide extends from a position above the heating member toward the discharge unit and has an upstream portion in a conveying direction of an image-fixed sheet. The second guide is disposed above the heating member and faces the upstream portion. The second guide defines an upper portion of the conveying path. A part of the second guide faces the upstream portion in the first position, and exposes the upstream portion in the second position. The top cover is movable between an open position where the second guide is exposed and a closed position where the second guide is covered. The first guide has a guide surface sloping downward in the conveying direction.Type: ApplicationFiled: November 27, 2013Publication date: June 5, 2014Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Atsushi Ozawa, Noboru Suzuki, Tatsuya Koyama, Takuji Matsuno
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Publication number: 20140153948Abstract: An image-forming apparatus includes: a fixing device; a power supply unit; a non-contact temperature sensor; and a control device. The fixing device has a heating member. The power supply unit is configured to supply electric power to the heating member. The non-contact temperature sensor is disposed in a position separate from the heating member and configured to detect temperature of the heating member. A first function and a second function respectively produce a first corrected temperature value and a second corrected temperature value smaller than the first corrected temperature value with respect to a given detected temperature. The control device is configured to: select the first function to correct the detected temperature at a start of a print control process; switch from the first function to the second function at a prescribed timing during the print control process; and control the power supply unit based on the corrected temperature.Type: ApplicationFiled: November 27, 2013Publication date: June 5, 2014Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tatsuya Koyama, Yuki Fukusada
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Publication number: 20140153949Abstract: In an image-forming apparatus, a sheet detector detects the recording sheet conveyed from the sheet accommodating unit by the pickup roller. A fixing unit includes a heating member configured to heat the recording sheet. A power supply unit supplies the heating member with electric power. A control device is configured to: output a signal controlling the pickup roller to convey the recording sheet from the sheet accommodating unit; determine, based on a detection result of the sheet detector, whether the pickup roller succeeds in conveying the recording sheet from the sheet accommodating unit; control the power supply unit to supply the heating member with the electric power such that the electric power per unit time does not exceed an upper limit; and set the upper limit depending on a determination result of whether the pickup roller succeeds in conveying the recording sheet from the sheet accommodating unit.Type: ApplicationFiled: November 27, 2013Publication date: June 5, 2014Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Tatsuya Koyama
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Publication number: 20140087882Abstract: A game processing server apparatus providing a game service to a plurality of terminal devices connected with each other via a network, includes a game data generation unit that generates game data in the game service; a player information storing unit that stores player information including registration date data indicating a date when the player operating the terminal device is registered in the game service; and a group allocation unit that determines a player group to which the player belongs based on the registration date data of the player, wherein the game data generation unit generates game data for training, which is different from normal game data, to the player who belongs to the player group.Type: ApplicationFiled: July 9, 2013Publication date: March 27, 2014Inventors: Yoshitaka MATSUMOTO, Kazuhiro Kondo, Shonosuke Tokumaru, Masataka Okihara, Kosuke Takami, Tatsuya Koyama
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Publication number: 20120312425Abstract: The present invention provides a steel product for gas carburizing used for manufacturing a carburized steel part. In the above steel product for gas carburizing, a composition of a base metal contains, in mass %, C: 0.1 to 0.4%, Si: exceeding 1.2 to 4.0%, Mn: 0.2 to 3.0%, Cr: 0.5 to 5.0%, Al: 0.005 to 0.1%, S: 0.001 to 0.3%, N: 0.003 to 0.03%, and O: limited to 0.0050% or less, and P: limited to 0.025% or less, and when the contents of Si, Mn, and Cr (mass %) are set to [Si %], [Mn %], and [Cr %], Expression (1) below is satisfied, and an alloy shortage layer satisfying Expression (2) below exists in a range from its surface to 2 to 50 ?m in depth. 32?3.5[Si %]+[Mn %]+3[Cr %]>9??(1) 3.Type: ApplicationFiled: December 7, 2011Publication date: December 13, 2012Inventors: Tatsuya Koyama, Manabu Kubota
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Publication number: 20120219338Abstract: An apparatus configured to discharge sheets may include pressing mechanism configured to downwardly press discharged sheets. For example, the pressing mechanism may include a first pressing member and a second pressing member. The first pressing member and the second pressing member may be located at least partially overlapping positions in the width-wise direction of the sheet. Additionally or alternatively, each of the first pressing member and the second pressing member may be configured to contact the sheet at different positions along a discharge direction. In one example, the different portions may be spaced apart from each other in the discharge direction.Type: ApplicationFiled: February 28, 2012Publication date: August 30, 2012Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasunori Watanabe, Tatsuya Koyama
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Publication number: 20120163889Abstract: A fixing device includes a tubular member, a nip member, a backup member, and a bias member. The tubular member has an outer peripheral surface, an inner peripheral surface defining an internal space, and an axis defining an axis direction. The nip member is in contact with the inner peripheral surface. The backup member is opposed to the nip member and in contact with the outer peripheral surface to form a nip region for nipping a sheet conveyed in a conveying direction orthogonal to the axis direction. The backup member is configured to move in the conveying direction and the tubular member is configured to circularly move around the axis in accordance with the movement of the backup member due to a friction force generated between the tubular member and the backup member. The bias member protrudes toward the backup member through a bias region.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Tatsuya KOYAMA
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Patent number: 7926023Abstract: Methods and apparatus are provided for: monitoring processor tasks and associated processor loads therefor that are allocated to be performed by respective sub-processing units associated with a main processing unit; detecting whether a processing error has occurred in a given one of the sub-processing units; re-allocating all of the processor tasks of the given sub-processing unit to one or more participating sub-processing units, including other sub-processing units associated with the main processing unit, based on the processor loads of the processor tasks of the given sub-processing unit and the processor loads of the participating sub-processing units; and at least one of: (i) shutting down, and (ii) re-booting the given sub-processing unit.Type: GrantFiled: December 6, 2007Date of Patent: April 12, 2011Assignee: Sony Computer Entertainment Inc.Inventors: Yasukichi Okawa, Daisuke Hiraoka, Koji Hirairi, Tatsuya Koyama
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Patent number: 7779767Abstract: A firing furnace comprising: a muffle formed so as to ensure a space for housing a formed body to be fired; a member that constitutes a heat generator and is placed on and/or around the muffle; and a heat insulating layer that contains said muffle and said heat generator inside thereof, wherein a carbon-natured sheet is placed in the vicinity of corner portions of an inner face of said heat insulating layer.Type: GrantFiled: June 7, 2005Date of Patent: August 24, 2010Assignee: Ibiden Co., Ltd.Inventors: Takamitsu Saijo, Yuichi Hiroshima, Tatsuya Koyama
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Patent number: 7730456Abstract: Methods and apparatus are provided for: monitoring processor tasks and associated processor loads therefor that are allocated to be performed by respective sub-processing units associated with a main processing unit; detecting whether a processing error has occurred in a given one of the sub-processing units; re-allocating all of the processor tasks of the given sub-processing unit to one or more participating sub-processing units, including other sub-processing units associated with the main processing unit, based on the processor loads of the processor tasks of the given sub-processing unit and the processor loads of the participating sub-processing units; and at least one of: (i) shutting down, and (ii) re-booting the given sub-processing unit.Type: GrantFiled: May 19, 2004Date of Patent: June 1, 2010Assignee: Sony Computer Entertainment Inc.Inventors: Yasukichi Okawa, Daisuke Hiraoka, Koji Hirairi, Tatsuya Koyama
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Publication number: 20080098260Abstract: Methods and apparatus are provided for: monitoring processor tasks and associated processor loads therefor that are allocated to be performed by respective sub-processing units associated with a main processing unit; detecting whether a processing error has occurred in a given one of the sub-processing units; re-allocating all of the processor tasks of the given sub-processing unit to one or more participating sub-processing units, including other sub-processing units associated with the main processing unit, based on the processor loads of the processor tasks of the given sub-processing unit and the processor loads of the participating sub-processing units; and at least one of: (i) shutting down, and (ii) re-booting the given sub-processing unit.Type: ApplicationFiled: December 6, 2007Publication date: April 24, 2008Applicant: Sony Computer Entertainment Inc.Inventors: Yasukichi Okawa, Daisuke Hiraoka, Koji Hirairi, Tatsuya Koyama
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Patent number: 7124870Abstract: A mechanism for mechanically coupling a driving source and a driven member. The mechanism includes a first member coupled to the driving source and a second member coupled to the driven member. A resilient member exerts a force to bring the first and second members into pressure contact at a contact surface. A vibration is excited in the contact surface of the first member to produce a levitation force, based on an ultrasonic levitation, acting upon the second member. Frictional force between the first member and the second member is changed depending on the levitation force, thereby changing power transmitted between the first member and the second member.Type: GrantFiled: April 9, 2004Date of Patent: October 24, 2006Assignee: Canon Kabushiki KaishaInventors: Kaishi Ohashi, Takashi Maeno, Kenjiro Takemura, Tatsuya Koyama