Patents by Inventor Yoshinao Kondoh
Yoshinao Kondoh 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: 8786646Abstract: A light-emitting chip includes: a substrate; plural light-emitting elements arrayed in line on the substrate, each of the light-emitting elements including a light-emitting region having a length in an array direction of the array different from a length in a direction orthogonal to the array direction; and a light-up current supplying interconnection including plural connecting portions, each of the connecting portions being provided on the light-emitting region of a corresponding one of the light-emitting elements in a shorter direction of the light-emitting region either the array direction or the direction orthogonal to the array direction, each of the connecting portions being connected to an electrode provided on the light-emitting region, the light-up current supplying interconnection supplying a current for lighting up to the plural light-emitting elements through the plural connecting portions.Type: GrantFiled: April 11, 2011Date of Patent: July 22, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Taku Kinoshita, Yoshinao Kondoh, Seiji Ohno
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Patent number: 8729569Abstract: The light-emitting chip includes: a substrate; plural light-emitting thyristors each having a pnpn structure formed of a first stacked-semiconductor layer in which at least 4 semiconductor layers having different conductivity types and including the substrate are stacked on the substrate; a lower wiring that is formed of a second stacked-semiconductor layer in which at least 3 semiconductor layers having different conductivity types and including the substrate are stacked on the substrate, and that has a semiconductor layer between the substrate and an uppermost semiconductor layer of the second stacked-semiconductor layer, the semiconductor layer having a fixed potential so that any one of p-n junctions between the substrate and the uppermost semiconductor layer is reversely biased with respect to potentials respectively applied to the substrate and the uppermost semiconductor layer; and an upper wiring provided on the lower wiring so as to intersect with the lower wiring through an isolation layer.Type: GrantFiled: March 18, 2010Date of Patent: May 20, 2014Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Patent number: 8465112Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: GrantFiled: August 24, 2011Date of Patent: June 18, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Publication number: 20120120176Abstract: A light-emitting chip includes: a substrate; plural light-emitting elements arrayed in line on the substrate, each of the light-emitting elements including a light-emitting region having a length in an array direction of the array different from a length in a direction orthogonal to the array direction; and a light-up current supplying interconnection including plural connecting portions, each of the connecting portions being provided on the light-emitting region of a corresponding one of the light-emitting elements in a shorter direction of the light-emitting region either the array direction or the direction orthogonal to the array direction, each of the connecting portions being connected to an electrode provided on the light-emitting region, the light-up current supplying interconnection supplying a current for lighting up to the plural light-emitting elements through the plural connecting portions.Type: ApplicationFiled: April 11, 2011Publication date: May 17, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Taku KINOSHITA, Yoshinao KONDOH, Seiji OHNO
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Patent number: 8174031Abstract: The light-emitting element chip includes: a substrate; a light-emitting portion including plural light-emitting elements each having a first semiconductor layer that has a first conductivity type and that is stacked on the substrate, a second semiconductor layer that has a second conductivity type and that is stacked on the first semiconductor layer, the second conductivity type being a conductivity type different from the first conductivity type, a third semiconductor layer that has the first conductivity type and that is stacked on the second semiconductor layer, and a fourth semiconductor layer that has the second conductivity type and that is stacked on the third semiconductor layer; and a controller including a logical operation element that performs logical operation for causing the plural light-emitting elements to perform a light-emitting operation, the logical operation element being formed by combining some sequential layers of the first, second, third and fourth semiconductor layers.Type: GrantFiled: February 3, 2009Date of Patent: May 8, 2012Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Patent number: 8124987Abstract: The light-emitting element chip includes: a substrate; a light-emitting portion including plural light-emitting elements each having a first semiconductor layer that has a first conductivity type and that is stacked on the substrate, a second semiconductor layer that has a second conductivity type and that is stacked on the first semiconductor layer, the second conductivity type being a conductivity type different from the first conductivity type, a third semiconductor layer that has the first conductivity type and that is stacked on the second semiconductor layer, and a fourth semiconductor layer that has the second conductivity type and that is stacked on the third semiconductor layer; and a controller including a logical operation element that performs logical operation for causing the plural light-emitting elements to perform a light-emitting operation, the logical operation element being formed by combining some sequential layers of the first, second, third and fourth semiconductor layers.Type: GrantFiled: February 3, 2009Date of Patent: February 28, 2012Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Publication number: 20110304663Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: ApplicationFiled: August 24, 2011Publication date: December 15, 2011Applicant: FUJI XEROX CO., LTD.Inventor: Yoshinao Kondoh
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Patent number: 8052240Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: GrantFiled: October 11, 2010Date of Patent: November 8, 2011Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Patent number: 8038242Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: GrantFiled: October 11, 2010Date of Patent: October 18, 2011Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Publication number: 20110063400Abstract: The light-emitting chip includes: a substrate; plural light-emitting thyristors each having a pnpn structure formed of a first stacked-semiconductor layer in which at least 4 semiconductor layers having different conductivity types and including the substrate are stacked on the substrate; a lower wiring that is formed of a second stacked-semiconductor layer in which at least 3 semiconductor layers having different conductivity types and including the substrate are stacked on the substrate, and that has a semiconductor layer between the substrate and an uppermost semiconductor layer of the second stacked-semiconductor layer, the semiconductor layer having a fixed potential so that any one of p-n junctions between the substrate and the uppermost semiconductor layer is reversely biased with respect to potentials respectively applied to the substrate and the uppermost semiconductor layer; and an upper wiring provided on the lower wiring so as to intersect with the lower wiring through an isolation layer.Type: ApplicationFiled: March 18, 2010Publication date: March 17, 2011Applicant: FUJI XEROX CO., LTD.Inventor: Yoshinao Kondoh
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Patent number: 7887149Abstract: There is provided a capacitive load driving circuit connected to a capacitive load that causes ejection, from an ejecting nozzle, of a liquid droplet of a droplet amount that corresponds to a voltage level of charging voltage, the capacitive load driving circuit including: a first line that is connected to the capacitive load and that applies the charging voltage to the capacitive load; a power source line carrying dc voltage that is supplied from a power source for driving of the capacitive load; a charging control signal line that controls a voltage level of the charging voltage with respect to the capacitive load; and an N-type electric field effect transistor to whose source the first line is connected, and to whose drain the power source line is connected, and to whose gate the charging control signal line is connected.Type: GrantFiled: August 30, 2007Date of Patent: February 15, 2011Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Publication number: 20110032294Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: ApplicationFiled: October 11, 2010Publication date: February 10, 2011Applicant: FUJI XEROX CO., LTD.Inventor: Yoshinao Kondoh
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Patent number: 7884850Abstract: An image forming apparatus including plural capacitive loads, with one terminal of each of the capacitive loads being connected to a common electrode and with each of the capacitive loads being charged/discharged on the basis of image data, and a first and second drive circuits is provided. The first drive circuit includes plural charge/discharge controllers that are individually connected to other terminals of the capacitive loads and individually control the charging and discharging of the capacitive loads and first and second electrical power wires that are connected to the charge/discharge controllers and charge and discharge the capacitive loads via the charge/discharge controllers. The second drive circuit is connected to each of the first and second electrical power wires and adjusts charge resistance and discharge resistance in response to control of the charge/discharge controllers.Type: GrantFiled: September 4, 2008Date of Patent: February 8, 2011Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Publication number: 20110025740Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: ApplicationFiled: October 11, 2010Publication date: February 3, 2011Applicant: FUJI XEROX CO., LTD.Inventor: Yoshinao Kondoh
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Patent number: 7850264Abstract: A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a control signal is inputted, the applying component applies an application voltage to the ejecting component, and the increasing component increases the impedance of the transistor.Type: GrantFiled: February 3, 2006Date of Patent: December 14, 2010Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh
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Patent number: 7850279Abstract: A liquid droplet ejecting head including: a piezoelectric element that includes a piezoelectric body, a first electrode disposed on one side of the piezoelectric body, and a second electrode disposed on the other side of the piezoelectric body; a first layer on one side of which the second electrode of the piezoelectric element is disposed; a second layer disposed on the other side of the first layer; a first electrical wire formed between the first layer and the second layer; and a second electrical wire that connects the first electrical wire and the second electrode, is provided.Type: GrantFiled: June 21, 2007Date of Patent: December 14, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroyuki Usami, Yoshinao Kondoh, Toshinobu Hamazaki, Nanao Inoue, Akira Mihara, Naoki Morita, Hiroshi Ikeda
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Publication number: 20100038671Abstract: The light-emitting element chip includes: a substrate; a light-emitting portion including plural light-emitting elements each having a first semiconductor layer that has a first conductivity type and that is stacked on the substrate, a second semiconductor layer that has a second conductivity type and that is stacked on the first semiconductor layer, the second conductivity type being a conductivity type different from the first conductivity type, a third semiconductor layer that has the first conductivity type and that is stacked on the second semiconductor layer, and a fourth semiconductor layer that has the second conductivity type and that is stacked on the third semiconductor layer; and a controller including a logical operation element that performs logical operation for causing the plural light-emitting elements to perform a light-emitting operation, the logical operation element being formed by combining some sequential layers of the first, second, third and fourth semiconductor layers.Type: ApplicationFiled: February 3, 2009Publication date: February 18, 2010Applicant: FUJI XEROX CO., LTD.Inventor: Yoshinao Kondoh
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Publication number: 20090212831Abstract: An image forming apparatus including plural capacitive loads, with one terminal of each of the capacitive loads being connected to a common electrode and with each of the capacitive loads being charged/discharged on the basis of image data, and a first and second drive circuits is provided. The first drive circuit includes plural charge/discharge controllers that are individually connected to other terminals of the capacitive loads and individually control the charging and discharging of the capacitive loads and first and second electrical power wires that are connected to the charge/discharge controllers and charge and discharge the capacitive loads via the charge/discharge controllers. The second drive circuit is connected to each of the first and second electrical power wires and adjusts charge resistance and discharge resistance in response to control of the charge/discharge controllers.Type: ApplicationFiled: September 4, 2008Publication date: August 27, 2009Applicant: FUJI XEROX CO., LTD.Inventor: Yoshinao Kondoh
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Patent number: 7448733Abstract: A liquid droplet ejecting head including a piezoelectric element substrate including a diaphragm and a piezoelectric element; a liquid pool chamber that pools liquid supplied to a pressure chamber and which is provided opposite a pressure chamber filled with liquid with the piezoelectric element substrate placed in between; an upper substrate arranged so as to separate the liquid pool chamber and the piezoelectric element substrate with the piezoelectric element substrate between with a through port for supplying liquid to the pressure chamber from the liquid pool chamber formed therein; a driver that is mounted on the upper substrate and which drives the piezoelectric element; a connecting component arranged between the opposite upper substrate and the piezoelectric element substrate and which electrically connects this upper substrate to the piezoelectric element.Type: GrantFiled: September 6, 2005Date of Patent: November 11, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Michiaki Murata, Yoshinao Kondoh, Hiroyuki Usami
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Patent number: 7445305Abstract: A droplet ejection apparatus of the present invention includes a plurality of ejection components having a first ejection component and a second ejection component which are connected to each other so as to be capable of being charged and discharged, and a control component. The droplet ejection apparatus applies a driving signal to the plural ejection components. A first driving signal to be applied to the first ejection component has a charging process, and a second driving signal to be applied to the second ejection component has a discharging process. The control component makes a control so that the charge timing of the first driving signal and the discharge timing of the second driving signal overlap each other.Type: GrantFiled: November 10, 2005Date of Patent: November 4, 2008Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshinao Kondoh