Patents by Inventor Tetsuo Hosoya
Tetsuo Hosoya 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: 10098608Abstract: An object is to more accurately compare diagnosis indexes with each other, which are calculated from data obtained in different environments with a cardiac-function diagnostic medicine. A conversion function calculation unit acquires a first phantom Heart/Mediastinum ratio (H/M ratio) and a second phantom H/M ratio based on a phantom, the first phantom H/M ratio that is an H/M ratio of the phantom in the first imaging environment being acquired by performing, based on phantom data that is data of a first phantom image obtained by imaging the phantom in the first imaging environment and digital phantom data that is data of a digital phantom including a cardiac ROI and a mediastinum ROI, positioning of the digital phantom on the first phantom image, and by calculating based on the phantom data of the first phantom image to which the cardiac ROI and the mediastinum ROI are set; and obtains a conversion function based on the first phantom H/M ratio and the second phantom H/M ratio.Type: GrantFiled: April 25, 2014Date of Patent: October 16, 2018Assignee: Fujifilm RI Pharma Co., Ltd.Inventors: Kenichi Nakajima, Koichi Okuda, Tetsuo Hosoya, Yumiko Kirihara, Takehiro Ishikawa
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Patent number: 9643417Abstract: A nozzle plate which exhibits excellent ink repellency and excellent durability to wiping, even when used with an ink that adheres readily to the nozzle plate is provided. A method for forming a silicone-based cured film on the ink discharge surface of a nozzle plate for an inkjet printer, the method comprising: (1) a step of preparing a condensation-type silicone composition containing at least one compound selected from the group consisting of bismuth compounds and cyclic amidine compounds, (2) a step of applying this condensation-type silicone composition to the ink discharge surface of the nozzle plate to form a coating film, and (3) a step of heating and curing this coating film.Type: GrantFiled: May 16, 2013Date of Patent: May 9, 2017Assignee: RISO KAGAKU CORPORATIONInventors: Naofumi Ezaki, Yoshifumi Watanabe, Tetsuo Hosoya
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Patent number: 9624402Abstract: The method is a non-aqueous inkjet printing method including the steps of: ejecting droplets of a non-aqueous pigment ink containing at least a pigment and a non-aqueous solvent onto a surface of a printing medium to form dots composed of the non-aqueous pigment ink, and then ejecting droplets of a non-aqueous post-treatment liquid containing at least silica and an organic solvent toward the printing medium so that the droplets overlap with the dots composed of the non-aqueous pigment ink, wherein either of the non-aqueous pigment ink and the post-treatment liquid contains a water-soluble resin having an amino group.Type: GrantFiled: December 18, 2014Date of Patent: April 18, 2017Assignee: RISO KAGAKU CORPORATIONInventors: Shinichiro Shimura, Teruaki Okawa, Toshihiro Endo, Tetsuo Hosoya, Naoyuki Torita, Hikaru Sugiura, Hiroshi Hayashi
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Patent number: 9593251Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl (meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.Type: GrantFiled: May 18, 2016Date of Patent: March 14, 2017Assignee: RISO KAGAKU CORPORATIONInventors: Tetsuo Hosoya, Toshihiro Endo, Naofumi Ezaki, Shinichiro Shimura, Naoyuki Torita, Marie Morinaga
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Publication number: 20160264806Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl (meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.Type: ApplicationFiled: May 18, 2016Publication date: September 15, 2016Applicant: RISO KAGAKU CORPORATIONInventors: Tetsuo HOSOYA, Toshihiro ENDO, Naofumi EZAKI, Shinichiro SHIMURA, Naoyuki TORITA, Marie MORINAGA
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Patent number: 9365736Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl(meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.Type: GrantFiled: July 2, 2013Date of Patent: June 14, 2016Assignee: RISO KAGAKU CORPORATIONInventors: Tetsuo Hosoya, Toshihiro Endo, Naofumi Ezaki, Shinichiro Shimura, Naoyuki Torita, Marie Morinaga
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Patent number: 9365735Abstract: In a non-aqueous pigment ink that includes pigment, a non-aqueous solvent, and a non-aqueous resin that functions to disperse pigment dissolved in the non-aqueous solvent, the non-aqueous solvent includes a hydrocarbon based non polar solvent at 50% by mass or more with respect to the total amount of solvent. The non-aqueous resin is an acrylic polymer having a comb shaped structure, in which alkyl groups having carbon numbers from 8 to 18 and urethane groups form side chains on a (meth)acrylate main chain. The acrylic polymer is a copolymer of an alkyl(meth)acrylate (A) having alkyl groups with a carbon number from 8 to 18, a reactive (meth)acrylate (B) having functional groups that react with amino groups, and a monomer (C) having ?-diketone groups or ?-keto acid ester groups, into which the urethane groups are introduced by reactions between the functional groups that react with amino groups, amino alcohol, and a multivalent isocyanate compound.Type: GrantFiled: December 19, 2012Date of Patent: June 14, 2016Assignee: RISO KAGAKU CORPORATIONInventors: Tetsuo Hosoya, Toshihiro Endo, Syotaro Kon
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Publication number: 20160066878Abstract: An object is to more accurately compare diagnosis indexes with each other, which are calculated from data obtained in different environments with a cardiac-function diagnostic medicine. A conversion function calculation unit acquires a first phantom Heart/Mediastinum ratio (H/M ratio) and a second phantom H/M ratio based on a phantom, the first phantom H/M ratio that is an H/M ratio of the phantom in the first imaging environment being acquired by performing, based on phantom data that is data of a first phantom image obtained by imaging the phantom in the first imaging environment and digital phantom data that is data of a digital phantom including a cardiac ROI and a mediastinum ROI, positioning of the digital phantom on the first phantom image, and by calculating based on the phantom data of the first phantom image to which the cardiac ROI and the mediastinum ROI are set; and obtains a conversion function based on the first phantom H/M ratio and the second phantom H/M ratio.Type: ApplicationFiled: April 25, 2014Publication date: March 10, 2016Inventors: Kenichi Nakajima, Koichi Okuda, Tetsuo Hosoya, Yumiko Kirihara, Takehiro Ishikawa
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Patent number: 9260620Abstract: [Problem to be solved] A non-aqueous ink, which has excellent pigment dispersion stability and can achieve reduction or elimination of print-through, thereby achieving high print density, is disclosed. [Solution] The non-aqueous ink contains at least a pigment and an organic solvent, wherein the organic solvent contains a five-membered heterocyclic compound having a C?O bond in an amount of 50 mass % or more of the organic solvent, and the content of a polymer component in the ink is 20 mass % or less relative to the pigment.Type: GrantFiled: October 17, 2011Date of Patent: February 16, 2016Assignee: Riso Kagaku CorporationInventors: Toshihiro Endo, Tetsuo Hosoya
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Patent number: 9221987Abstract: A the non-aqueous pigment ink containing at least a non-aqueous solvent and a pigment that is self-dispersed in the solvent, wherein the self-dispersed pigment is treated with a compound represented by R1-X or R2-Y-R3, where X is any of —SH, —NCO, —NH2 and —NHR (where R is an alkyl group), Y is any of —CO—O—O—CO— and —CO—O—O—, R1, R2 and R3 are alkyl groups with a carbon number of 8-22, the alkyl groups may be linear or branched, and R2 and R3 may be the same with or different from each other. Alternatively, the non-aqueous inkjet ink may contain at least a non-aqueous solvent and a pigment that is self-dispersed in the solvent, wherein a content of a polymer component in the ink is 20 mass % or less relative to the pigment, and the ink has a specific heat of 3.0 J/(g·K) or less.Type: GrantFiled: October 17, 2011Date of Patent: December 29, 2015Assignee: Riso Kagaku CorporationInventors: Tetsuo Hosoya, Akiko Yamamoto, Asayo Nishimura
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Publication number: 20150184011Abstract: The method is a non-aqueous inkjet printing method including the steps of: ejecting droplets of a non-aqueous pigment ink containing at least a pigment and a non-aqueous solvent onto a surface of a printing medium to form dots composed of the non-aqueous pigment ink, and then ejecting droplets of a non-aqueous post-treatment liquid containing at least silica and an organic solvent toward the printing medium so that the droplets overlap with the dots composed of the non-aqueous pigment ink, wherein either of the non-aqueous pigment ink and the post-treatment liquid contains a water-soluble resin having an amino group.Type: ApplicationFiled: December 18, 2014Publication date: July 2, 2015Applicant: RISO KAGAKU CORPORATIONInventors: Shinichiro SHIMURA, Teruaki OKAWA, Toshihiro ENDO, Tetsuo HOSOYA, Naoyuki TORITA, Hikaru SUGIURA, Hiroshi HAYASHI
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Publication number: 20150174904Abstract: A nozzle plate which exhibits excellent ink repellency and excellent durability to wiping, even when used with an ink that adheres readily to the nozzle plate is provided. A method for forming a silicone-based cured film on the ink discharge surface of a nozzle plate for an inkjet printer, the method comprising: (1) a step of preparing a condensation-type silicone composition containing at least one compound selected from the group consisting of bismuth compounds and cyclic amidine compounds, (2) a step of applying this condensation-type silicone composition to the ink discharge surface of the nozzle plate to form a coating film, and (3) a step of heating and curing this coating film.Type: ApplicationFiled: May 16, 2013Publication date: June 25, 2015Inventors: Naofumi Ezaki, Yoshifumi Watanabe, Tetsuo Hosoya
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Publication number: 20150005412Abstract: In a non-aqueous pigment ink that includes pigment, a non-aqueous solvent, and a non-aqueous resin that functions to disperse pigment dissolved in the non-aqueous solvent, the non-aqueous solvent includes a hydrocarbon based non polar solvent at 50% by mass or more with respect to the total amount of solvent. The non-aqueous resin is an acrylic polymer having a comb shaped structure, in which alkyl groups having carbon numbers from 8 to 18 and urethane groups form side chains on a (meth)acrylate main chain. The acrylic polymer is a copolymer of an alkyl(meth)acrylate (A) having alkyl groups with a carbon number from 8 to 18, a reactive (meth)acrylate (B) having functional groups that react with amino groups, and a monomer (C) having ?-diketone groups or ?-keto acid ester groups, into which the urethane groups are introduced by reactions between the functional groups that react with amino groups, amino alcohol, and a multivalent isocyanate compound.Type: ApplicationFiled: December 19, 2012Publication date: January 1, 2015Inventors: Tetsuo Hosoya, Toshihiro Endo, Syotaro Kon
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Patent number: 8915994Abstract: [Problem to be solved] A non-aqueous ink, which has excellent pigment dispersion stability and can achieve reduction or elimination of print-through, thereby achieving high print density, is disclosed. [Solution] The non-aqueous ink contains at least a pigment and an organic solvent, wherein the organic solvent contains a five-membered heterocyclic compound having a C?O bond in an amount of 50 mass % or more of the organic solvent, and the content of a polymer component in the ink is 20 mass % or less relative to the pigment.Type: GrantFiled: October 17, 2011Date of Patent: December 23, 2014Assignee: Riso Kagaku CorporationInventors: Toshihiro Endo, Tetsuo Hosoya
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Patent number: 8765838Abstract: A non-aqueous ink composition for inkjet printing, comprising 5 to 15% by mass of pigment relative to a mass of the non-aqueous ink composition, a pigment dispersant in such an amount that a mass ratio of the pigment dispersant to the pigment ranges from 0.2 to 2.0, and an organic solvent, the pigment dispersant comprising (A) a polyamide having a polyester side chain and/or a copolymer of vinylpyrrolidone and a C10-40 alkene, and (B) an alkyl(alkyl)acrylate copolymer having a C12-25 alkyl group and a nitrogen-containing group in such an amount that a mass ratio of the dispersant (B) to a total of the dispersant (A) and the dispersant (B), (B)/[(A)+(B)], ranges from 0.75 to 0.99. The ink composition has good storage stability and causes no satellite even printed in an environment of a low temperature.Type: GrantFiled: September 27, 2011Date of Patent: July 1, 2014Assignee: Riso Kagaku CorporationInventors: Tetsuo Hosoya, Toshihiro Endo
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Patent number: 8642162Abstract: A non-aqueous pigment ink which suppresses show-through and improves the print density in printed items, and also exhibits excellent storage stability. The non-aqueous pigment ink comprises a pigment, a non-aqueous solvent, and non-aqueous resin dispersion particles having a pigment dispersion capability, wherein the non-aqueous resin dispersion particles comprise a urethane-modified alkyd resin formed from an oil-modified alkyd resin and/or fatty acid-modified alkyd resin having an oil length of not less than 50% by mass into which urethane groups have been introduced, and the urethane-modified alkyd resin is prepared by bonding an amino alcohol to double bonds within the oil-modified alkyd resin and/or fatty acid-modified alkyd resin, and then reacting the amino alcohol with a polyvalent isocyanate compound to introduce the urethane groups.Type: GrantFiled: June 22, 2010Date of Patent: February 4, 2014Assignee: Riso Kagaku CorporationInventor: Tetsuo Hosoya
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Publication number: 20140011942Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl(meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.Type: ApplicationFiled: July 2, 2013Publication date: January 9, 2014Inventors: Tetsuo HOSOYA, Toshihiro ENDO, Naofumi EZAKI, Shinichiro SHIMURA, Naoyuki TORITA, Marie MORINAGA
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Patent number: 8592502Abstract: A non-aqueous ink composition for inkjet printing is provided, which comprises 0.01 to 10 wt % of at least one ionic substance (A) selected from the group consisting of quarterly ammonium salts, quarterly phosphonium salts, a combination of a fatty acid and/or an alkyl phosphate with an amine compound, and synergists, 0.1 to 20 wt % of an C12-25 alkyl(meth)acrylate copolymer (B) having 1 to 40 wt %, relative to a weight of the copolymer, of urethane moiety, 0.1 to 20 wt % of a pigment (C), and an organic solvent (D). The composition achieves excellent wiping durability and printed image density.Type: GrantFiled: October 22, 2010Date of Patent: November 26, 2013Assignee: Riso Kagaku CorporationInventors: Tetsuo Hosoya, Hiroshi Hayashi, Marie Morinaga, Naoyuki Torita
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Publication number: 20130233203Abstract: [Problem to be solved] A non-aqueous ink, which has excellent pigment dispersion stability and can achieve reduction or elimination of print-through, thereby achieving high print density, is disclosed. [Solution] The non-aqueous ink contains at least a pigment and an organic solvent, wherein the organic solvent contains a five-membered heterocyclic compound having a C?O bond in an amount of 50 mass % or more of the organic solvent, and the content of a polymer component in the ink is 20 mass % or less relative to the pigment.Type: ApplicationFiled: October 17, 2011Publication date: September 12, 2013Applicant: RISO KAGAKU CORPORATIONInventors: Toshihiro Endo, Tetsuo Hosoya
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Publication number: 20130220171Abstract: [Problem to be solved] A non-aqueous pigment ink is disclosed, which can eliminate or reduce striking through while ensuring pigment dispersion stability and ejection stability, and achieve high print density. Also, a non-aqueous inkjet ink is disclosed, which can reduce the time required for warming up the ink while ensuring the pigment dispersion stability and the ejection stability. [Solution] As the first aspect, the non-aqueous pigment ink contains at least a non-aqueous solvent and a pigment that is self-dispersed in the solvent, wherein the self-dispersed pigment is treated with a compound represented by R1—X or R2—Y—R3, where X is any of —SH, —NCO, —NH2 and —NHR (where R is an alkyl group), Y is any of —CO—O—O—CO— and —CO—O—O—, R1, R2 and R3 are alkyl groups with a carbon number of 8-22, the alkyl groups may be linear or branched, and R2 and R3 may be the same with or different from each other.Type: ApplicationFiled: October 17, 2011Publication date: August 29, 2013Applicant: RISO KAGAKU CORPORATIONInventors: Tetsuo Hosoya, Akiko Yamamoto, Asayo Nishimura