Patents by Inventor Hiroaki Toshima
Hiroaki Toshima 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: 8429815Abstract: A method for manufacturing an electronic substrate structure comprising a substrate, a glass layer, and a conductive layer. This method may include the steps of arranging the glass layer on the substrate, arranging the conductive layer that includes a precious metal particle on the glass layer while directly contacting the glass layer, and heating the glass layer together with the conductive layer at a temperature that is lower than a softening point of the glass layer so that the particle is put into the glass layer. The particle has a diameter of not less than 1 ?m and not more than 10 ?m.Type: GrantFiled: June 29, 2007Date of Patent: April 30, 2013Assignee: Canon Kabushiki KaishaInventors: Naoki Matsuzaki, Kazuya Ishiwata, Hiroaki Toshima
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Patent number: 7642702Abstract: To provide an electron source including: a wiring board having: a substrate provided with a groove on its surface; a first conductive member which is arranged along the groove in the groove; and a second conductive member which is arranged above the first conductive member crossing the first conductive member; and an electron-emitting device which is arranged on the wiring board and is electrically connected to the first conductive member and the second conductive member; wherein a particle is arranged between the first conductive member and an inner wall of the groove.Type: GrantFiled: June 25, 2007Date of Patent: January 5, 2010Assignee: Canon Kabushiki KaishaInventors: Masafumi Moriya, Kazuya Ishiwata, Hiroaki Toshima
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Publication number: 20090091916Abstract: To provide a method for simply manufacturing a substrate provided with a flat surface shape. Specifically, a method for manufacturing a substrate according to the present invention includes the steps of preparing a structure including a glass layer and a precious metal particle having a diameter not less than 1 ?m and not more than 10 ?m disposed on the glass layer while contacting thereto; and putting the precious metal particle in the glass layer by heating the structure at a temperature which is lower than a softening point of the glass layer.Type: ApplicationFiled: June 29, 2007Publication date: April 9, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Naoki Matsuzaki, Kazuya Ishiwata, Hiroaki Toshima
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Publication number: 20080001517Abstract: To provide an electron source including: a wiring board having: a substrate provided with a groove on its surface; a first conductive member which is arranged along the groove in the groove; and a second conductive member which is arranged above the first conductive member crossing the first conductive member; and an electron-emitting device which is arranged on the wiring board and is electrically connected to the first conductive member and the second conductive member; wherein a particle is arranged between the first conductive member and an inner wall of the groove.Type: ApplicationFiled: June 25, 2007Publication date: January 3, 2008Applicant: CANON KABUSHIKI KAISHAInventors: MASAFUMI MORIYA, KAZUYA ISHIWATA, HIROAKI TOSHIMA
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Patent number: 7055938Abstract: A liquid jet recording head comprises a constituting member formed from a cured product of a resin composition comprising (1) a curable epoxy compound, (2) a compound having a functional group reactive to the curable epoxy compound and a fluorocarbon moiety, and (3) a curing agent.Type: GrantFiled: April 18, 1996Date of Patent: June 6, 2006Assignee: Canon Kabushiki KaishaInventors: Norio Ohkuma, Masashi Miyagawa, Hiroaki Toshima
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Patent number: 6902455Abstract: There is provided a method of manufacturing a member pattern having on a substrate, a patterned first belt-shaped member and a plurality of second belt-shaped members that are patterned over from the first belt-shaped member to the substrate, the method including: forming the first belt-shaped member by a printing method; and forming the second belt-shaped members by a process involving exposure and development using a photosensitive material.Type: GrantFiled: September 12, 2002Date of Patent: June 7, 2005Assignee: Canon Kabushiki KaishaInventors: Yoshihiro Yanagisawa, Kazuya Ishiwata, Hiroaki Toshima
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Publication number: 20050062391Abstract: In an electron source having an electron emitting member, the electron emitting member is connected to a first or second conductive member by a third conductive member which is connected to the first or second conductive member through an aperture forming in an insulating member, and such aperture has such a shape as to become narrower from an end of the third conductive member toward the other end. Such configuration avoids that the third conductive member is damaged in the connecting portion with the first or second conductive member by the thermal stress therein.Type: ApplicationFiled: October 7, 2004Publication date: March 24, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Hiroaki Toshima, Kazuya Ishiwata, Yoshimi Uda
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Patent number: 6853117Abstract: In an electron source having an electron emitting member, the electron emitting member is connected to a first or second conductive member by a third conductive member which is connected to the first or second conductive member through an aperture forming in an insulating member, and such aperture has such a shape as to become narrower from an end of the third conductive member toward the other end. Such configuration avoids that the third conductive member is damaged in the connecting portion with the first or second conductive member by the thermal stress therein.Type: GrantFiled: July 31, 2002Date of Patent: February 8, 2005Assignee: Canon Kabushiki KaishaInventors: Hiroaki Toshima, Kazuya Ishiwata, Yoshimi Uda
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Patent number: 6758712Abstract: The wirings on an electron source substrate are formed to intersect with each other in a matrix so as to address the electron emission devices on the substrate. First and second wirings intersect with each other on a crossing point. As such a crossing point, an insulating layer is placed between the first and second wirings. To ensure insulation, a plurality of insulating layers are laminated. According to the present invention, a wiring pattern is provided on the substrate with a conductive paste and baking the wiring pattern of the conductive paste to form the first wiring. Subsequently part of the first wiring is coated at the crossing point with an insulating paste and baking the insulating paste to form a first insulating layer. The coating thickness of the insulating layer formed adjacent to sidewalls of the crossing point is substanially equal to the height of the first wiring.Type: GrantFiled: December 11, 2001Date of Patent: July 6, 2004Assignee: Canon Kabushiki KaishaInventors: Shinsaku Kubo, Kazuya Ishiwata, Yoshimi Uda, Yasuyuki Watanabe, Hiroaki Toshima
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Publication number: 20030060114Abstract: There is provided a method of manufacturing a member pattern having on a substrate, a patterned first belt-shaped member and a plurality of second belt-shaped members that are patterned over from the first belt-shaped member to the substrate, the method including: forming the first belt-shaped member by a printing method; and forming the second belt-shaped members by a process involving exposure and development using a photosensitive material.Type: ApplicationFiled: September 12, 2002Publication date: March 27, 2003Inventors: Yoshihiro Yanagisawa, Kazuya Ishiwata, Hiroaki Toshima
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Publication number: 20030030357Abstract: In an electron source having an electron emitting member, the electron emitting member is connected to a first or second conductive member by a third conductive member which is connected to the first or second conductive member through an aperture forming in an insulating member, and such aperture has such a shape as to become narrower from an end of the third conductive member toward the other end. Such configuration avoids that the third conductive member is damaged in the connecting portion with the first or second conductive member by the thermal stress therein.Type: ApplicationFiled: July 31, 2002Publication date: February 13, 2003Inventors: Hiroaki Toshima, Kazuya Ishiwata, Yoshimi Uda
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Patent number: 6461798Abstract: A process for producing an ink jet head having an ink pathway communicating with a discharging outlet and an energy generating element for generating energy utilized for discharging ink.Type: GrantFiled: April 1, 1996Date of Patent: October 8, 2002Assignee: Canon Kabushiki KaishaInventors: Norio Ohkuma, Masashi Miyagawa, Hiroaki Toshima
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Method of manufacturing ink jet recording head and ink jet recording head manufactured by the method
Patent number: 6455112Abstract: A highly reliable ink jet recording head excellent in mechanical strength, weatherability, ink resistance, and adhesion to the substrate is provided. For its production, a cationically polymerized curing product of an epoxy resin having a structural unit expressed by the following formula (I) or (II), is used as a resin material which coats an ink flow path pattern formed from a dissoluble resin on the substrate.Type: GrantFiled: May 15, 2000Date of Patent: September 24, 2002Assignee: Canon Kabushiki KaishaInventors: Norio Ohkuma, Masashi Miyagawa, Hiroaki Toshima -
Publication number: 20020095785Abstract: The wirings on an electron source substrate are formed to intersect with each other in a matrix so as to address the electron emission devices on the substrate. First and second wirings intersect with each other on a crossing point. As such a crossing point, an insulating layer is placed between the first and second wirings. To ensure insulation, a plurality of insulating layers are laminated. According to the present invention, a wiring pattern is provided on the substrate with a conductive paste and baking the wiring pattern of the conductive paste to form the first wiring. Subsequently part of the first wiring is coated at the crossing point with an insulating paste and baking the insulating paste to form a first insulating layer. The coating thickness of the insulating layer formed adjacent to sidewalls of the crossing point is substanially equal to the height of the first wiring.Type: ApplicationFiled: December 11, 2001Publication date: July 25, 2002Inventors: Shinsaku Kubo, Kazuya Ishiwata, Yoshimi Uda, Yasuyuki Watanabe, Hiroaki Toshima
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Patent number: 6165034Abstract: This invention relates to an electron source and an image forming apparatus each of which particularly comprises a surface conduction type electron emitting element as an electron emitting element, a method of manufacturing an electron source and an image forming apparatus, in which the energization forming treatment step of the surface conduction type electron emitting element is performed by applying a voltage to an electron emitting portion formation thin film via a nonlinear element connected in series with the thin film and having nonlinear voltage/current characteristics, an electron source and an image forming apparatus in each of which the nonlinear element is connected in series with the surface conduction type electron emitting element, and a method of driving the same.Type: GrantFiled: May 17, 1999Date of Patent: December 26, 2000Assignee: Canon Kabushiki KaishaInventors: Aoji Isono, Yoshiyuki Osada, Hidetoshi Suzuki, Eiji Yamaguchi, Toshihiko Takeda, Hiroaki Toshima, Noritake Suzuki, Yasuyuki Todokoro
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Patent number: 5945260Abstract: A method for manufacturing a liquid jet recording head includes a first process of forming an ink flow passage pattern on a substrate by a resin layer; a second process of forming a covering resin layer to cover a resin layer on the resin layer; a third process of forming an ink discharging port pattern by a material having resistance to an oxygen plasma on the surface of the covering resin layer; a fourth process of forming ink discharging ports by dry etching the resin layer by the application of the oxygen plasma with the ink discharging port pattern as a mask; and a fifth process of eluting the resin layer. This method enables the ink discharging ports to be formed without cutting the substrate and at the same time, the distance between the ink discharging pressure generating elements and the orifices to be controlled rigidly; hence making it possible to manufacture a liquid jet recording head having a stabilized discharging characteristic.Type: GrantFiled: December 16, 1996Date of Patent: August 31, 1999Assignee: Canon Kabushiki KaishaInventors: Masashi Miyagawa, Norio Ohkuma, Hiroaki Toshima
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Patent number: 5929827Abstract: This invention relates to an electron source and an image forming apparatus each of which particularly comprises a surface conduction type electron emitting element as an electron emitting element, a method of manufacturing an electron source and an image forming apparatus, in which the energization forming treatment step of the surface conduction type electron emitting element is performed by applying a voltage to an electron emitting portion formation thin film via a nonlinear element connected in series with the thin film and having nonlinear voltage/current characteristics, an electron source and an image forming apparatus in each of which the nonlinear element is connected in series with the surface conduction type electron emitting element, and a method of driving the same.Type: GrantFiled: October 28, 1994Date of Patent: July 27, 1999Assignee: Canon Kabushiki KaishaInventors: Aoji Isono, Yoshiyuki Osada, Hidetoshi Suzuki, Eiji Yamaguchi, Toshihiko Takeda, Hiroaki Toshima, Noritake Suzuki, Yasuyuki Todokoro
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Patent number: 5659329Abstract: An electron source emits electrons as a function of input signals. The electron source includes a substrate, a matrix of wires having m row wires and n column wires laid on the substrate with an insulator layer interposed therebetween, and a plurality of surface-conduction electron-emitting devices each having a pair of electrodes and a thin film including an electron emitting region and arranged between the electrodes. The electron-emitting devices are so arranged as to form a matrix with the electrodes connected to the respective row and column wires. The electron source further includes a selector for selecting a row of the plurality of surface-conduction electron-emitting devices, and a modulator for generating modulation signals according to input signals and applying them to the surface-conduction electron-emitting devices selected by the selector.Type: GrantFiled: October 8, 1996Date of Patent: August 19, 1997Assignee: Canon Kabushiki KaishaInventors: Masato Yamanobe, Yoshiyuki Osada, Ichiro Nomura, Hidetoshi Suzuki, Tetsuya Kaneko, Hisaaki Kawade, Yasue Sato, Yuji Kasanuki, Eiji Yamaguchi, Toshihiko Takeda, Shinya Mishina, Naoto Nakamura, Hiroaki Toshima, Aoji Isono, Noritake Suzuki, Yasuyuki Todokoro
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Patent number: 5654607Abstract: A color display device has an evacuated vessel accommodating at least an electron-beam generating source in which a plurality of surface-conduction electron emitting devices are arrayed on a substrate, and phosphors for the three primary colors red, green and blue for emitting light in response to being irradiated with electron beams from the electron-beam generating source. A modulator is provided to modulate the electron beams, which irradiate the phosphors, based upon an image signal, the modulator having .gamma.-corrector for subjecting the image signal to a gamma correction. The modulator modulates the electron beams based upon the image signal corrected in advance by the .gamma.-corrector.Type: GrantFiled: April 4, 1994Date of Patent: August 5, 1997Assignee: Canon Kabushiki KaishaInventors: Eiji Yamaguchi, Yoshiyuki Osada, Hidetoshi Suzuki, Toshihiko Takeda, Hiroaki Toshima, Aoji Isono, Noritake Suzuki, Yasuyuki Todokoro
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Patent number: 5593335Abstract: A method of manufacturing an electron source having a plurality of surface-conduction electron-emitting devices arranged on a substrate in row and column directions includes the forming of electron emission portions of the plurality of surface-conduction electron-emitting devices. The forming is carried out by supplying current through the plurality of surface-conduction electron-emitting devices upon dividing them into a plurality of groups. An image forming apparatus passes a current through a plurality of electron sources, which are formed on a substrate and arrayed in the form of a matrix, in dependence upon an image signal, and an image is formed by a light emission in response to electrons emitted from the plurality of electron sources.Type: GrantFiled: April 5, 1994Date of Patent: January 14, 1997Assignee: Canon Kabushiki KaishaInventors: Hidetoshi Suzuki, Yoshiyuki Osada, Ichiro Nomura, Takeo Ono, Hisaaki Kawade, Eiji Yamaguchi, Toshihiko Takeda, Hiroaki Toshima, Yasuhiro Hamamoto, Tatsuya Iwasaki, Aoji Isono, Noritake Suzuki, Yasuyuki Todokoro, Masahiro Okuda, Katsuhiko Shinjo