Patents by Inventor Shogo Kawamura
Shogo Kawamura 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: 20150328810Abstract: Provided are a molding method for efficiently and accurately performing molding of a layered component made of a thermosetting resin by a simple mechanism, and molded articles. For this purpose, primary molding for molding a plurality of divided bodies and secondary molding for joining the plurality of divided bodies with one another are performed sequentially.Type: ApplicationFiled: April 30, 2015Publication date: November 19, 2015Inventor: Shogo Kawamura
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Publication number: 20150307689Abstract: The invention provides a molding material including a liquid epoxy resin composition containing an epoxy resin, a curing agent or a curing catalyst, a filler, a thixotropy-imparting agent, and a wetting dispersant.Type: ApplicationFiled: March 31, 2015Publication date: October 29, 2015Inventors: Isao Imamura, Yoshiyuki Shino, Shogo Kawamura
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Publication number: 20150174800Abstract: The present invention provides a resin molding method that can produce a molded product that is inexpensive and represents a small linear expansion coefficient, a high degree of resistance to various liquids and an excellent mold releasability as well as a high degree of dimensional accuracy. The resin molding method includes a step of plasticizing thermosetting resin (S2) and injecting the plasticized thermosetting resin into the cavity of a metal mold apparatus (S3), a step of curing the thermosetting resin in the cavity (S4) and a step of opening the mold (S5). The step of opening the mold (S5) is executed when the mold that forms the cavity is at a temperature not lower than the glass transition point Tg of the thermosetting resin.Type: ApplicationFiled: November 25, 2014Publication date: June 25, 2015Inventors: Isao Imamura, Yoshiyuki Shino, Shogo Kawamura
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Publication number: 20150165660Abstract: There is provided a molding method for efficiently and accurately molding a hollow part of a thermosetting resin with a simple mechanism, a mold, and a molded article. A mold used for molding of a thermosetting resin includes an upper mold, an intermediate mold, and a lower mold which can be stacked with each other. Primary molding for molding segment parts and secondary molding for bonding the segment parts are sequentially performed by placing or retracting the intermediate mold to switch between a runner for primary molding and a runner for secondary molding.Type: ApplicationFiled: December 5, 2014Publication date: June 18, 2015Inventor: Shogo Kawamura
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Patent number: 8840226Abstract: A liquid discharge head includes an element substrate including an energy generating element; a supporting member adhesively supporting the element substrate; a sheet member adhesively bonded to the supporting member to adjoin the inner surface of an opening accommodating the element substrate in the sheet member and an end section of the element substrate; a wiring substrate bonded to the sheet member to adjoin the inner surface of an opening accommodating the element substrate in the wiring substrate and the end section of the element substrate and including a wire electrically connected to the energy generating element; and a sealant sealing a part electrical connecting the wiring substrate and element substrate, wherein the height of a wiring substrate surface opposite to that contacting the sheet member from supporting member is smaller than the element substrate surface opposite to that contacting the supporting member from the supporting member.Type: GrantFiled: June 28, 2011Date of Patent: September 23, 2014Assignee: Canon Kabushiki KaishaInventors: Shogo Kawamura, Toshiaki Hirosawa, Akira Yamamoto
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Patent number: 8690299Abstract: A liquid container includes an air-tight liquid-storage chamber or reservoir, a movable member for agitating liquid, and a protrusion portion for supporting the movable member. The movable member and the protrusion portion are disposed in the liquid-storage chamber. The movable member includes a first end that is linearly movable along the protrusion portion and a second end that is free.Type: GrantFiled: February 6, 2013Date of Patent: April 8, 2014Assignee: Canon Kabushiki KaishaInventors: Shogo Kawamura, Yasuo Kotaki, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi
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Patent number: 8678556Abstract: A liquid discharge recording head includes: a recording element substrate, an electric wiring board, and a supporting plate that supports the recording element substrate and the electric wiring board, with a gap formed between the recording element substrate and the electric wiring board, and a connecting member that electrically connects, across the gap, an electrode provided in the recording element substrate and an electrode terminal provided in the electric wiring board. A first resin agent that is filled in the gap, a second resin agent seals the electrode, the electrode terminal, and the connecting member, and a third resin agent that is provided between the first resin agent and the supporting plate and has a lower modulus of elasticity than the first resin agent and the second resin agent.Type: GrantFiled: May 26, 2010Date of Patent: March 25, 2014Assignee: Canon Kabushiki KaishaInventors: Shuzo Iwanaga, Shogo Kawamura, Yasuhiko Osaki
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Patent number: 8573748Abstract: A recording head includes a recording element substrate having a plurality of discharge ports discharging a liquid and energy generating elements generating energy used to discharge the liquid from the discharge ports; an electrical wiring substrate having an opening portion in which the recording element substrate is provided and for applying a driving signal to the recording element substrate; an electrical connection portion in which an electrode portion of the recording element substrate and an electrode portion of the electrical wiring substrate are electrically connected to each other by a wire; and a sealing material covering and sealing the electrical connection portion. The electrical connection portion is provided with a reference member as a reference of at least one of an upper limit position and a lower limit position of the height of the surface of the sealing material with respect to the thickness direction of the recording element substrate.Type: GrantFiled: February 18, 2011Date of Patent: November 5, 2013Assignee: Canon Kabushiki KaishaInventors: Shogo Kawamura, Toshiaki Hirosawa, Hiroshi Abe
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Patent number: 8474957Abstract: An ink tank includes a stirrer supported in a freely moveable manner near an inner wall of an ink storage chamber. When the stirrer moves closest to the inner wall, a predetermined gap is formed between opposing surfaces of the inner wall and the stirrer.Type: GrantFiled: October 2, 2009Date of Patent: July 2, 2013Assignee: Canon Kabushiki KaishaInventors: Koichi Kubo, Shogo Kawamura, Tetsuya Ohashi, Ryoji Inoue, Hideki Ogura, Yasuo Kotaki
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Patent number: 8388122Abstract: A liquid container includes an air-tight liquid-storage chamber or reservoir, a movable member for agitating liquid, and a protrusion portion for supporting the movable member. The movable member and the protrusion portion are disposed in the liquid-storage chamber. The movable member includes a first end that is linearly movable along the protrusion portion and a second end that is free.Type: GrantFiled: March 22, 2010Date of Patent: March 5, 2013Assignee: Canon Kabushiki KaishaInventors: Shogo Kawamura, Yasuo Kotaki, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi
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Patent number: 8342654Abstract: An electric wiring board 120 of a liquid injection recording head has a base film 123 formed with an opening, a first wiring member 122 formed on a first surface that is a rear surface of the base film 123 as seen from a supporting member 140, a second wiring member 129 formed at a position closer to the opening than the first wiring member 122 on the first surface, and connected to a wire 170, a cover film 124 which covers the first wiring member 122 and has an end 150 between the first wiring member 122 and the second wiring member 129, an adhesive 127 which bonds together the first wiring member 122 and the cover film 124, a third wiring member 125 formed on a second surface opposite to the first surface of the base film 123, a first through hole 160, and a second through hole 161.Type: GrantFiled: April 20, 2010Date of Patent: January 1, 2013Assignee: Canon Kabushiki KaishaInventor: Shogo Kawamura
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Publication number: 20120033017Abstract: A liquid discharge recording head includes: a recording element substrate, an electric wiring board, and a supporting plate that supports the recording element substrate and the electric wiring board, wherein a gap is formed between the recording element substrate and the electric wiring board; the liquid discharge recording head further including: a connecting member that electrically connects, across the gap, an electrode provided in the recording element substrate and an electrode terminal provided in the electric wiring board; and a first resin agent that is filled in the gap, a second resin agent that seals the electrode, the electrode terminal, and the connecting member, and a third resin agent that is provided between the first resin agent and the supporting plate and has a lower modulus of elasticity than the first resin agent and the second resin agent.Type: ApplicationFiled: May 26, 2010Publication date: February 9, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Shuzo Iwanaga, Shogo Kawamura, Yasuhiko Osaki
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Publication number: 20120007926Abstract: A liquid discharge head includes an element substrate including an energy generating element; a supporting member adhesively supporting the element substrate; a sheet member adhesively bonded to the supporting member to adjoin the inner surface of an opening accommodating the element substrate in the sheet member and an end section of the element substrate; a wiring substrate bonded to the sheet member to adjoin the inner surface of an opening accommodating the element substrate in the wiring substrate and the end section of the element substrate and including a wire electrically connected to the energy generating element; and a sealant sealing a part electrical connecting the wiring substrate and element substrate, wherein the height of a wiring substrate surface opposite to that contacting the sheet member from supporting member is smaller than the element substrate surface opposite to that contacting the supporting member from the supporting member.Type: ApplicationFiled: June 28, 2011Publication date: January 12, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Shogo Kawamura, Toshiaki Hirosawa, Akira Yamamoto
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Publication number: 20110211024Abstract: A recording head includes: a recording element substrate having a plurality of discharge ports discharging a liquid and an energy generating element generating energy used to discharge the liquid from the discharge ports; an electrical wiring substrate having an opening portion in which the recording element substrate is provided and applies a driving signal to the recording element substrate; an electrical connection portion in which an electrode portion of the recording element substrate and an electrode portion of the electrical wiring substrate are electrically connected to each other by a wire; and a sealing material covering and sealing the electrical connection portion, wherein the electrical connection portion is provided with a reference member as a reference of at least one of an upper limit position and a lower limit position of the height of the surface of the sealing material with respect to thickness direction of the recording element substrate.Type: ApplicationFiled: February 18, 2011Publication date: September 1, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Shogo Kawamura, Toshiaki Hirosawa, Hiroshi Abe
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Patent number: 7967429Abstract: An ink tank includes a first channel extending in the form of a groove on an external part of the tank in connection with an atmospheric communicating port. The tank also includes a second channel which branches off from the first channel and joins this again and which has a capillary force greater than that of the first channel. Even when some amount of ink has flowed out of the atmospheric communicating port, the capillary force generated in the second channel acts to hold the ink in the channel. Additionally, even when ink is stored in the second channel, the first channel is not closed, and the pressure in the tank is therefore kept in equilibrium with the atmospheric pressure. Therefore, there is little possibility that the ink in the second channel will be pushed out even when the ambient temperature changes.Type: GrantFiled: January 29, 2009Date of Patent: June 28, 2011Assignee: Canon Kabushiki KaishaInventor: Shogo Kawamura
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Patent number: 7954662Abstract: A liquid storage container capable of ensuring a sufficient ink storage space and preventing liquid leakage without large variations in liquid pressure even when the container is deformed by an external force during shipping or in operating time. The container includes a protection member positioned outside of a flexible member, and an opening is defined on a plane member arranged in contact with the flexible member so as to face the protection member.Type: GrantFiled: December 19, 2006Date of Patent: June 7, 2011Assignee: Canon Kabushiki KaishaInventors: Hideki Ogura, Ryoichi Matsumoto, Tetsuya Ohashi, Shogo Kawamura, Ryoji Inoue
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Publication number: 20100271431Abstract: An electric wiring board 120 of a liquid injection recording head has a base film 123 formed with an opening, a first wiring member 122 formed on a first surface that is a rear surface of the base film 123 as seen from a supporting member 140, a second wiring member 129 formed at a position closer to the opening than the first wiring member 122 on the first surface, and connected to a wire 170, a cover film 124 which covers the first wiring member 122 and has an end 150 between the first wiring member 122 and the second wiring member 129, an adhesive 127 which bonds together the first wiring member 122 and the cover film 124, a third wiring member 125 formed on a second surface opposite to the first surface of the base film 123, a first through hole 160, and a second through hole 161.Type: ApplicationFiled: April 20, 2010Publication date: October 28, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Shogo Kawamura
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Patent number: 7784927Abstract: In an ink supply system for connecting with an ink container with a hollow communicating tube provided in the ink container, in order to prevent leakage of the ink from the communicating tube and simultaneously to prevent damage of the communicating tube projected from the ink container, the communicating tube 60 is made movable to be projected from the inside of the ink container and to be inserted into a recording head, thus establishing liquid communication between the inside of the ink container and the inside of the recording head.Type: GrantFiled: June 20, 2007Date of Patent: August 31, 2010Assignee: Canon Kabushiki KaishaInventors: Ryoji Inoue, Ryoichi Matsumoto, Hideki Ogura, Shogo Kawamura, Satoshi Oikawa
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Patent number: 7762654Abstract: A liquid container includes a housing, a flexible film, a liquid reservoir configured to directly store liquid therein and defined by the housing on one side and the flexible film on the other side, a liquid supply port provided in the liquid reservoir and configured to supply liquid to a recording head, and an overhang protruding from the housing and located in the liquid reservoir and substantially near the liquid supply port. The absorbing member is configured to absorb the inertial force of liquid, the inertial force being generated in liquid in the liquid reservoir by an external force applied to the housing.Type: GrantFiled: August 29, 2006Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventors: Shogo Kawamura, Yasuo Kotani, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi
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Publication number: 20100171801Abstract: A liquid container includes an air-tight liquid-storage chamber or reservoir, a movable member for agitating liquid, and a protrusion portion for supporting the movable member. The movable member and the protrusion portion are disposed in the liquid-storage chamber. The movable member includes a first end that is linearly movable along the protrusion portion and a second end that is free.Type: ApplicationFiled: March 22, 2010Publication date: July 8, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Shogo Kawamura, Yasuo Kotaki, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi