Patents by Inventor Ken Ikegame
Ken Ikegame 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: 20160041469Abstract: A method for patterning a photosensitive resin layer includes a forming process of forming, on a first photosensitive resin layer containing a first resin, a second photosensitive resin layer containing a second resin different from the first resin and a solvent and a patterning process of patterning the first photosensitive resin layer and the second photosensitive resin layer by simultaneously exposing and developing the first photosensitive resin layer and the second photosensitive resin layer, in which the second photosensitive resin layer is a water-repellent layer and the second resin has higher solubility in the solvent than the solubility of the first resin.Type: ApplicationFiled: August 3, 2015Publication date: February 11, 2016Inventors: Ken Ikegame, Miho Ishii
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Publication number: 20150309407Abstract: A composition includes a photoacid generator and a fluorine-containing epoxy resin that is a polymer of monomers that include an acrylic monomer (a) having a perfluoropolyether group having 9 or more carbon atoms and an acrylic monomer (b) having an epoxy group in a composition ratio such that a number of acrylic functional groups derived from the acrylic monomer (b) is larger than a number of acrylic functional groups derived from the acrylic monomer (a).Type: ApplicationFiled: April 21, 2015Publication date: October 29, 2015Inventors: Ken Ikegame, Miho Ishii
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Patent number: 9150697Abstract: Provided is an ink jet recording head, including a member provided with an ejection orifice for ejecting ink, in which the ink jet recording head further includes a water-repellent layer including a cured product of a condensed product obtained by condensation of a hydrolyzable silane compound having an epoxy group and a hydrolyzable silane compound having a perfluoropolyether group on a surface of the member on a side on which the ejection orifice opens.Type: GrantFiled: April 17, 2013Date of Patent: October 6, 2015Assignee: Canon Kabushiki KaishaInventors: Etsuko Sawada, Hiroaki Mihara, Ken Ikegame, Satoshi Tsutsui, Yohei Hamade
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Publication number: 20150273825Abstract: A manufacturing method for a liquid ejection head including: a substrate; an ejection orifice forming member having an ejection orifice on the substrate; and a surface layer having a recess that has a bottom portion communicating with the ejection orifice and an opening held in contact with an outside and having a width larger than a width of the ejection orifice, the surface layer being formed on the forming member, the method including: forming a first resin layer serving as the forming member by applying a negative photosensitive resin composition A onto the substrate; forming a second resin layer as the surface layer by applying a negative photosensitive resin composition B having sensitivity lower than sensitivity of the composition A onto the first resin layer; subjecting the first and the second resin layers to pattern exposure collectively; and subjecting the first and the second resin layers to development collectively.Type: ApplicationFiled: March 9, 2015Publication date: October 1, 2015Inventors: Miho Ishii, Ken Ikegame
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Publication number: 20150251419Abstract: Provided is an ink jet recording head, including a member provided with an ejection orifice for ejecting ink, in which the ink jet recording head further includes a water-repellent layer including a cured product of a condensed product obtained by condensation of a hydrolyzable silane compound having an epoxy group and a hydrolyzable silane compound having a perfluoropolyether group on a surface of the member on a side on which the ejection orifice opens.Type: ApplicationFiled: May 22, 2015Publication date: September 10, 2015Inventors: Etsuko Sawada, Hiroaki Mihara, Ken Ikegame, Satoshi Tsutsui, Yohei Hamade
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Patent number: 9061499Abstract: A photosensitive resin composition includes a cationically polymerizable compound, a photoacid generating agent having an anion portion and a cation portion, and a salt having a cation portion having either one of a quaternary ammonium structure and a quaternary phosphonium structure and an anion portion, wherein the anion portion of the salt is exchanged with the anion portion of a first acid derived from the anion portion of the photoacid generating agent to form a second acid having acid strength that is lower than acid strength of the first acid.Type: GrantFiled: January 27, 2011Date of Patent: June 23, 2015Assignee: Canon Kabushiki KaishaInventors: Hyo Takahashi, Ken Ikegame, Masako Shimomura
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Patent number: 9029074Abstract: Provided is a method of water repellent treatment for a pattern surface, the method including the steps of agitatingly mixing a perfluoropolyether-group-containing silane water repellent, an organic acid, a fluorine-containing solvent capable of dissolving the perfluoropolyether-group-containing silane water repellent and the organic acid, and water to hydrolyze the perfluoropolyether-group-containing silane water repellent, thereby obtaining a partial hydrolysate solution; forming a photosensitive resin layer on a substrate; applying the partial hydrolysate solution onto the photosensitive resin layer to form a water-repellent film; performing patterning exposure to the photosensitive resin layer and the water-repellent film; performing heat treatment to collectively cure an exposed portion of the photosensitive resin layer and the water-repellent film; and removing a non-exposed portion of the photosensitive resin layer and the water-repellent film by development treatment to form a pattern.Type: GrantFiled: February 25, 2014Date of Patent: May 12, 2015Assignee: Canon Kabushiki KaishaInventors: Yohei Hamade, Etsuko Sawada, Ken Ikegame, Hiroaki Mihara, Satoshi Tsutsui
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Publication number: 20150077470Abstract: Provided is an ink jet recording head, including a member provided with an ejection orifice for ejecting ink, in which the ink jet recording head further includes a water-repellent layer including a cured product of a condensed product obtained by condensation of a hydrolyzable silane compound having an epoxy group and a hydrolyzable silane compound having a perfluoropolyether group on a surface of the member on a side on which the ejection orifice opens.Type: ApplicationFiled: April 17, 2013Publication date: March 19, 2015Inventors: Etsuko Sawada, Hiroaki Mihara, Ken Ikegame, Satoshi Tsutsui, Yohei Hamade
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Patent number: 8980968Abstract: A photosensitive resin composition includes (a) a compound polymerizable in the presence of an acid, and (b) a photoacid generating agent including an onium salt having a cationic part structure represented by formula (b1) below and an anionic part structure represented by formula (b2) below, wherein the component (b) absorbs 50% or more of the amount of 365 nm wavelength light absorbed by the photosensitive resin composition,Type: GrantFiled: February 1, 2011Date of Patent: March 17, 2015Assignee: Canon Kabushiki KaishaInventors: Hyo Takahashi, Ken Ikegame, Masako Shimomura
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Patent number: 8975003Abstract: The invention provides a photosensitive negative resin composition containing (a) an epoxy-group-containing compound, (b) a first onium salt containing a cation portion structure represented by (b1) and an anion portion structure represented by (b2), and (c) a second onium salt containing a cation portion structure represented by (c1) and an anion portion structure represented by (c2).Type: GrantFiled: December 2, 2011Date of Patent: March 10, 2015Assignee: Canon Kabushiki KaishaInventors: Hyou Takahashi, Masako Shimomura, Ken Ikegame
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Patent number: 8944580Abstract: A photosensitive resin composition includes: a cation polymerizable compound; a photoacid generator having an anion portion represented by the chemical formula 1 and a cation portion, wherein R represents a hydrocarbon group which may be substituted with a fluorine atom and has a total carbon number of 1 to 30; X is selected from the group consisting of a carbon atom and a phosphorous atom; Y is selected from the group consisting of —S(?O)2—, —O—CF2—, —C(?O)—CF2—, —O—C(?O)—CF2—, —C(?O)—O—CF2—, and a single bond; R has at least one fluorine atom when Y is —S(?O)2— or the single bond; m and n are integers selected from the group consisting of m+n=3 and n=0, 1, and 2 when X is the carbon atom; m and n are integers selected from the group consisting of m+n=6 and n=0 to 5 when X is the phosphorous atom; and R and Y may be different from each other when m is equal to or greater than 2; and a salt of an anion portion and a cation portion, wherein an acid strength of an acid derived from the anion portion is equaType: GrantFiled: January 31, 2011Date of Patent: February 3, 2015Assignee: Canon Kabushiki KaishaInventors: Ken Ikegame, Masako Shimomura, Hyo Takahashi
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Patent number: 8936350Abstract: A print head includes an energy generating element, a chamber for accommodating liquid, and an ejection opening for ejecting liquid from the chamber, thus applying the energy to the liquid in the chamber from the energy generating element to eject the liquid from the ejection opening, wherein the ejection opening includes at least two projections convex to an inside of the ejection opening in a cross section perpendicular to a liquid ejecting direction and has a tapered angle ?1 in regard to the liquid ejecting direction, enabling a meniscus of the liquid to be formed therebetween at the liquid ejecting time, and an outer edge portion has a tapered angle ?2 in regard to the liquid ejecting direction, wherein the tapered angles ?1 and ?2 are defined to meet a formula of 0°??1?10° and a formula of ?2>?1.Type: GrantFiled: May 31, 2012Date of Patent: January 20, 2015Assignee: Canon Kabushiki KaishaInventors: Yasunori Takei, Kenji Yabe, Takuma Kodoi, Ken Ikegame, Isamu Horiuchi, Hyou Takahashi
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Publication number: 20140311661Abstract: A process for producing a liquid ejection head having a substrate and an ejection orifice forming member having an ejection orifice for ejecting liquid, including forming, on the substrate, a photocationically polymerizable resin layer which includes a photocationically polymerizable resin material and becomes the ejection orifice forming member; laminating, on the uncured photocationically polymerizable resin layer, a layer containing a condensation product of a hydrolyzable silane compound having a cationically polymerizable epoxy group and a hydrolyzable silane compound having a fluorine-containing group; laminating a water-repellent layer including a hydrolyzable silane compound having a perfluoropolyether group on the condensation-product-containing layer; subjecting the photocationically polymerizable resin layer, condensation-product-containing layer, and water-repellent layer to pattern exposure; collectively curing exposed portions of the photocationically polymerizable resin layer, condensation-prodType: ApplicationFiled: April 1, 2014Publication date: October 23, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Satoshi Tsutsui, Etsuko Sawada, Ken Ikegame, Hiroaki Mihara, Yohei Hamade
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Publication number: 20140309329Abstract: Provided is a water-repellent antifouling coating material including a condensation product obtained by condensing hydrolyzable silane compounds. The hydrolyzable silane compounds include (a) a hydrolyzable silane compound having a perfluoropolyether group; (b) a hydrolyzable silane compound having an epoxy group; and (c) a hydrolyzable silane compound having a fluorine-containing group other than perfluoropolyether groups.Type: ApplicationFiled: March 26, 2014Publication date: October 16, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Etsuko Sawada, Satoshi Tsutsui, Yohei Hamade, Hiroaki Mihara, Ken Ikegame
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Publication number: 20140272725Abstract: Provided is a method of water repellent treatment for a pattern surface, the method including the steps of agitatingly mixing a perfluoropolyether-group-containing silane water repellent, an organic acid, a fluorine-containing solvent capable of dissolving the perfluoropolyether-group-containing silane water repellent and the organic acid, and water to hydrolyze the perfluoropolyether-group-containing silane water repellent, thereby obtaining a partial hydrolysate solution; forming a photosensitive resin layer on a substrate; applying the partial hydrolysate solution onto the photosensitive resin layer to form a water-repellent film; performing patterning exposure to the photosensitive resin layer and the water-repellent film; performing heat treatment to collectively cure an exposed portion of the photosensitive resin layer and the water-repellent film; and removing a non-exposed portion of the photosensitive resin layer and the water-repellent film by development treatment to form a pattern.Type: ApplicationFiled: February 25, 2014Publication date: September 18, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Yohei Hamade, Etsuko Sawada, Ken Ikegame, Hiroaki Mihara, Satoshi Tsutsui
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Patent number: 8827422Abstract: Without being dependent on design changes, a liquid ejection head and a method of production thereof are provided in which when time-division driving, liquid drop landing deviance in the direction of printing is capable of being corrected. In order to achieve this, before performing an exposure in order to form an ejection port, after forming a cavity that is shifted with respect to the location at which the ejection port is formed, exposure is performed.Type: GrantFiled: May 25, 2012Date of Patent: September 9, 2014Assignee: Canon Kabushiki KaishaInventors: Takuma Kodoi, Yasunori Takei, Kenji Yabe, Isamu Horiuchi, Hyo Takahashi, Ken Ikegame
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Patent number: 8785110Abstract: A liquid ejection head is manufactured by forming a dent representing a substantially spherical profile so as to include a position for forming an ejection port on a surface of a photosensitive resin layer, then forming a latent image of the ejection port in the dent by an exposure treatment using a projection lens system, and developing the latent image. The center of the top surface of the latent image is shifted to the incoming side of the beam of exposure light from the lowest point of the dent.Type: GrantFiled: July 11, 2013Date of Patent: July 22, 2014Assignee: Canon Kabushiki KaishaInventors: Takuma Kodoi, Yasunori Takei, Kenji Yabe, Isamu Horiuchi, Hyou Takahashi, Ken Ikegame
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Patent number: 8753798Abstract: A process for forming a hydrophilic coating and a hydrophilic coating, the process including the steps of: (1) forming, on a substrate, a first coating resin layer including a first cationic polymerization resin and a first photoacid generator; (2) laminating, on the first coating resin layer, a second coating resin layer including a second cationic polymerization resin which includes an acid-cleavable linkage in its main chain, and a second photoacid generator which generates methide acid by irradiation with an active energy ray including ultraviolet light; (3) forming a coating by curing the first coating resin layer and the second coating resin layer through exposure of the first coating resin layer and the second coating resin layer to the active energy ray to conduct development; and (4) forming a hydrophilic coating by hydrophilizing a surface of the coating through heat treatment of the coating.Type: GrantFiled: October 25, 2011Date of Patent: June 17, 2014Assignee: Canon Kabushiki KaishaInventors: Kazunari Ishizuka, Ken Ikegame
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Patent number: 8728718Abstract: There is provided a method for manufacturing a liquid ejection head having a substrate and a channel-forming member having an ejection port from which a liquid is ejected, the method including forming a negative photosensitive resin layer on or above the substrate; forming a lens layer on the negative photosensitive resin layer, the lens layer having a lens; exposing the negative photosensitive resin layer through the lens to form an ejection port in the negative photosensitive resin layer; and removing the lens layer.Type: GrantFiled: May 20, 2013Date of Patent: May 20, 2014Assignee: Canon Kabushiki KaishaInventors: Isamu Horiuchi, Hiroaki Mihara, Kazunari Ishizuka, Ken Ikegame
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Publication number: 20140125735Abstract: A print head includes an energy generating element, a chamber for accommodating liquid, and an ejection opening for ejecting liquid from the chamber, thus applying the energy to the liquid in the chamber from the energy generating element to eject the liquid from the ejection opening, wherein the ejection opening includes at least two projections convex to an inside of the ejection opening in a cross section perpendicular to a liquid ejecting direction and has a tapered angle ?1 in regard to the liquid ejecting direction, enabling a meniscus of the liquid to be formed therebetween at the liquid ejecting time, and an outer edge portion has a tapered angle ?2 in regard to the liquid ejecting direction, wherein the tapered angles ?1 and ?2 are defined to meet a formula of 0°??1?10° and a formula of ?2>?1.Type: ApplicationFiled: May 31, 2012Publication date: May 8, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Yasunori Takei, Kenji Yabe, Takuma Kodoi, Ken Ikegame, Isamu Horiuchi, Hyou Takahashi