Patents by Inventor Masahiko Ogino
Masahiko Ogino 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: 20230087688Abstract: This invention provides an ink for inkjet printers with both properties; i.e., good visibility of printing dots after heating and high dissolution stability. The ink for inkjet printers of the invention comprises a color material, a solvent, and resin, wherein the color material comprises a first metal complex and a second metal complex comprising metal ions selected from among iron ions, manganese ions, copper ions, cobalt ions, and chromium ions and ligands bound thereto, and the ligands comprise diketone structures incorporated in the chemical structures thereof.Type: ApplicationFiled: March 16, 2021Publication date: March 23, 2023Inventors: Takuya OTOWA, Hiroshi SASAKI, Tatsunosuke SUZUKI, Masahiko OGINO
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Publication number: 20200385594Abstract: The purpose of the present invention is to provide an ink for ink-jet printers, the ink being able to be reduced in the content of an electroconductive agent and having low resistance. The ink for ink-jet printers of a charge control type according to the present invention, which is provided in order to overcome the problem, is characterized by comprising a resin, a pigment, an electroconductive agent, and a nonaqueous solvent, the electroconductive agent having a salt structure which generates an anion and a cation in the nonaqueous solvent, the anion having a trifluoromethylsulfonyl group and the cation being a quaternary ammonium cation or having an unsaturated heterocyclic structure.Type: ApplicationFiled: February 20, 2019Publication date: December 10, 2020Inventors: Hiroshi SASAKI, Takuya OTOWA, Masahiko OGINO, Keisuke NAGAI, Tamaki WADA
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Patent number: 10843477Abstract: A makeup fluid is added to an ink liquid of an inkjet printer to reduce the viscosity of the ink liquid, the makeup fluid including a fluorescent color material in a solvent. An inkjet printer apparatus employing a makeup fluid is provided with a makeup fluid tank to which a light-emitting element and a light-receiving element are attached, and detects the presence or absence of the makeup fluid by irradiating ultraviolet light from the light-emitting element, causing visible light to be emitted from the fluorescent color material in the makeup fluid, and detecting the visible light with the light-receiving element.Type: GrantFiled: June 3, 2016Date of Patent: November 24, 2020Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Takuya Otowa, Masahiko Ogino, Hiroshi Sasaki, Takahiro Arima, Keisuke Nagai, Hiromichi Takeyama, Shengnan Hua
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Patent number: 10308019Abstract: The present invention addresses the problem of enabling a charge control-type inkjet printer to enable real-time control during an operation and to maintain optimal printing conditions while operating. This charge control-type inkjet printer is provided with: a printing head including a nozzle unit for discharging ink; a pressure reduction valve for adjusting the pressure of the ink to be supplied to the nozzle unit of the printing head; and an ink container for accommodating the ink to be supplied to the nozzle unit of the printing head, wherein an imaging unit is further provided which images an image of ink that is discharged from the nozzle unit and is in a particulate state.Type: GrantFiled: September 26, 2016Date of Patent: June 4, 2019Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Hiromichi Takeyama, Masahiko Ogino, Keisuke Nagai, Takashi Sato
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Publication number: 20180304639Abstract: A makeup fluid is added to an ink liquid of an inkjet printer to reduce the viscosity of the ink liquid, the makeup fluid including a fluorescent color material in a solvent. An inkjet printer apparatus employing a makeup fluid is provided with a makeup fluid tank to which a light-emitting element and a light-receiving element are attached, and detects the presence or absence of the makeup fluid by irradiating ultraviolet light from the light-emitting element, causing visible light to be emitted from the fluorescent color material in the makeup fluid, and detecting the visible light with the light-receiving element.Type: ApplicationFiled: June 3, 2016Publication date: October 25, 2018Inventors: Takuya OTOWA, Masahiko OGINO, Hiroshi SASAKI, Takahiro ARIMA, Keisuke NAGAI, Hiromichi TAKEYAMA, Shengnan HUA
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Publication number: 20180291221Abstract: In an ink for an inkjet printer of an electrostatic charging control type, the ink including a resin, a pigment, a conductive agent, and a solvent, for the resin, one that contains carboxyl groups or hydroxyl groups is used. Thus, an ink print applied to a material including a large quantity of a plasticizer can be made stable over a prolonged period of time without subjecting the ink print to an ultraviolet irradiation or other special treatments.Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Inventors: Hiroshi SASAKI, Masahiko OGINO, Takuya OTOWA, Tomoko MAEJIMA, Keisuke NAGAI
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Publication number: 20180281401Abstract: The present invention addresses the problem of enabling a charge control-type inkjet printer to enable real-time control during an operation and to maintain optimal printing conditions while operating. This charge control-type inkjet printer is provided with: a printing head including a nozzle unit for discharging ink; a pressure reduction valve for adjusting the pressure of the ink to be supplied to the nozzle unit of the printing head; and an ink container for accommodating the ink to be supplied to the nozzle unit of the printing head, wherein an imaging unit is further provided which images an image of ink that is discharged from the nozzle unit and is in a particulate state.Type: ApplicationFiled: September 26, 2016Publication date: October 4, 2018Inventors: Hiromichi TAKEYAMA, Masahiko OGINO, Keisuke NAGAI, Takashi SATO
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Patent number: 9796821Abstract: Mechanical strength of a composite material is enhanced by a simple process. In a composite material comprising a resin or a rubber and an oxide glass, the resin or the rubber is dispersed in the oxide glass, or the oxide glass is dispersed in the resin or the rubber. The composite material has a function that the oxide glass is softened and fluidized by electromagnetic waves.Type: GrantFiled: November 19, 2012Date of Patent: October 24, 2017Assignee: Hitachi, Ltd.Inventors: Takuya Aoyagi, Takashi Naito, Tadashi Fujieda, Yuichi Sawai, Hajime Murakami, Hiroshi Yoshida, Akihiro Miyauchi, Masahiko Ogino
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Patent number: 9708460Abstract: Mechanical strength of a composite material is enhanced by a simple process. In a composite material comprising a resin or a rubber and an oxide glass, the resin or the rubber is dispersed in the oxide glass, or the oxide glass is dispersed in the resin or the rubber, and the oxide glass is softened and fluidized by heating at or lower than a heat decomposition temperature of the resin or the rubber.Type: GrantFiled: November 1, 2012Date of Patent: July 18, 2017Assignee: HITACHI, LTD.Inventors: Tadashi Fujieda, Takashi Naito, Takuya Aoyagi, Yuichi Sawai, Hajime Murakami, Hiroshi Yoshida, Akihiro Miyauchi, Masahiko Ogino
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Patent number: 9334415Abstract: The purpose of the present invention is to prevent the discoloration of an ink even when the ink is printed on a base to be printed and then exposed to a high-temperature environment. An ink including a glass composite, resin and a conducting agent, wherein the glass composite includes Ag2O in the range of 10 mass % to 60 mass %, V2O5 in the range of 5 mass % to 65 mass %, and TeO2 in the range of 15 mass % to 50 mass %, and the total content ratio of the Ag2O, V2O5, and TeO2 is at least 75 mass %.Type: GrantFiled: December 5, 2012Date of Patent: May 10, 2016Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Masahiko Ogino, Yuichi Sawai, Takashi Naito, Naoshi Takahashi, Hiroshi Sasaki, Kenichi Souma
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Publication number: 20160083600Abstract: In an ink for an inkjet printer of an electrostatic charging control type, the ink including a resin, a pigment, a conductive agent, and a solvent, for the resin, one that contains carboxyl groups or hydroxyl groups is used. Thus, an ink print applied to a material including a large quantity of a plasticizer can be made stable over a prolonged period of time without subjecting the ink print to an ultraviolet irradiation or other special treatments.Type: ApplicationFiled: February 4, 2014Publication date: March 24, 2016Applicant: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Hiroshi SASAKI, Masahiko OGINO, Takuya OTOWA, Tomoko MAEJIMA, Keisuke NAGAI
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Patent number: 9261631Abstract: A diffraction grating excellent in surface precision and allowing its miniaturization and weight reduction and a method for manufacturing the same. The present invention includes: a glass substrate having a thickness of 0.5 mm to 8 mm; a resin-made microstructure body having an unevenness pattern and formed on one surface of the glass substrate; and a flat resin layer formed on the other surface of the glass substrate. Even if the glass substrate has surface precision of ?/2 or greater, the replica of the diffraction grating, in which the microstructure body is not influenced by the surface precision of the glass substrate and which is excellent in surface precision, can be manufactured by the flatness of the resin layer. In addition, since the glass substrate can be made thin, the miniaturization and weight reduction of the diffraction grating can be achieved.Type: GrantFiled: February 1, 2013Date of Patent: February 16, 2016Assignee: Hitachi High-Technologies CorporationInventors: Kenji Kawasaki, Masahiko Ogino, Akihiro Miyauchi
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Patent number: 9211698Abstract: The visibility of a printing object using a photo-curable ink is improved. A charge control type ink jet printer includes a nozzle which continuously forms ink droplets, a charging electrode which charges each of the ink droplets, a deflection electrode which deflects the charged ink droplet, and a print head which discharges the deflected ink droplet to print the droplet onto a printed substrate. The print head has a UV light source. The UV light source has a focusing member which focuses UV light onto at least part of a flying path of the ink droplet between the print head and the printed substrate and onto a landed region of the printed substrate, and a light emission source.Type: GrantFiled: August 19, 2014Date of Patent: December 15, 2015Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Masahiko Ogino, Hiroshi Sasaki, Takuya Otowa, Tomoko Maejima, Kenichi Souma
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Patent number: 9005342Abstract: The present invention is characterized in that a filter made of resin comprises a through-hole film portion (14); and a structure reinforce portion (13), wherein a through-hole (15) is provided in a through-hole film portion (14), the thickness of the through-hole film portion (14) is from 0.5 to 2.0 ?m, the bore of the through-hole (15) is from 0.05 to 0.5 ?m, the thickness of the structure reinforce portion (13) is bigger than the thickness of the through-hole film portion (14), the structure reinforce portion (13) encloses the through-hole film portion (14), a damage-reduction structure is provided on the upper surface of the structure reinforce portion (13), and wherein, the damage-reduction structure may be an uneven structures.Type: GrantFiled: December 27, 2012Date of Patent: April 14, 2015Assignee: Hitachi, Ltd.Inventors: Yuzuru Shimazaki, Ryuta Washiya, Masahiko Ogino, Akihiro Miyauchi
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Publication number: 20150077477Abstract: The visibility of a printing object using a photo-curable ink is improved. A charge control type ink jet printer includes a nozzle which continuously forms ink droplets, a charging electrode which charges each of the ink droplets, a deflection electrode which deflects the charged ink droplet, and a print head which discharges the deflected ink droplet to print the droplet onto a printed substrate. The print head has a UV light source. The UV light source has a focusing member which focuses UV light onto at least part of a flying path of the ink droplet between the print head and the printed substrate and onto a landed region of the printed substrate, and a light emission source.Type: ApplicationFiled: August 19, 2014Publication date: March 19, 2015Inventors: Masahiko OGINO, Hiroshi SASAKI, Takuya OTOWA, Tomoko MAEJIMA, Kenichi SOUMA
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Publication number: 20150020879Abstract: To improve the gas barrier property of a laminate containing a substrate containing resin or rubber and oxide glass. A laminate 8 comprising a substrate 9 containing resin or rubber and oxide glass 10 formed at least on one surface of the substrate, in which the oxide glass softens and fluidizes at a temperature equal to or lower than the softening temperature of the substrate and adheres to the substrate.Type: ApplicationFiled: November 21, 2012Publication date: January 22, 2015Applicant: Hitachi, Ltd.Inventors: Yuichi Sawai, Takashi Naito, Takuya Aoyagi, Tadashi Fujieda, Hajime Murakami, Hiroshi Yoshida, Masahiko Ogino, Akihiro Miyauchi
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Publication number: 20150015957Abstract: The present invention has an object of providing a diffraction grating excellent in surface precision and allowing its miniaturization and weight reduction and a method for manufacturing the same. The present invention comprises: a glass substrate having a thickness of 0.5 mm to 8 mm; a resin-made microstructure body having an unevenness pattern and formed on one surface of the glass substrate; and a flat resin layer formed on the other surface of the glass substrate. Even if the glass substrate has surface precision of ?/2 or greater, the replica of the diffraction grating, in which the microstructure body is not influenced by the surface precision of the glass substrate and which is excellent in surface precision, can be manufactured by the flatness of the resin layer. In addition, since the glass substrate can be made thin, the miniaturization and weight reduction of the diffraction grating can be achieved.Type: ApplicationFiled: February 1, 2013Publication date: January 15, 2015Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Kenji Kawasaki, Masahiko Ogino, Akihiro Miyauchi
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Publication number: 20150017409Abstract: The gas barrier property of a laminate constituted by a base material containing a resin or a rubber and an oxide glass is improved. A composite member containing an oxide glass 2 formed as a layer densely on a base material 1 containing a resin or a rubber, in which the oxide glass is bonded to the base material by irradiating the oxide glass with an electromagnetic wave and softening and fluidizing the oxide glass.Type: ApplicationFiled: November 21, 2012Publication date: January 15, 2015Applicant: Hitachi, Ltd.Inventors: Takashi Naito, Tadashi Fujieda, Takuya Aoyagi, Yuichi Sawai, Hajime Murakami, Masahiko Ogino, Akihiro Miyauchi, Hiroshi Yoshida
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Publication number: 20140375736Abstract: The purpose of the present invention is to prevent the discoloration of an ink even when the ink is printed on a base to be printed and then exposed to a high-temperature environment. An ink comprising a glass composition, wherein the glass composition (1) comprises Ag, V and a vitrescible component.Type: ApplicationFiled: December 5, 2012Publication date: December 25, 2014Inventors: Masahiko Ogino, Yuichi Sawai, Takashi Naito, Naoshi Takahashi, Hiroshi Sasaki, Kenichi Souma
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Publication number: 20140378581Abstract: Mechanical strength of a composite material is enhanced by a simple process. In a composite material comprising a resin or a rubber and an oxide glass, the resin or the rubber is dispersed in the oxide glass, or the oxide glass is dispersed in the resin or the rubber. The composite material has a function that the oxide glass is softened and fluidized by electromagnetic waves.Type: ApplicationFiled: November 19, 2012Publication date: December 25, 2014Applicant: Hitachi, Ltd.Inventors: Takuya Aoyagi, Takashi Naito, Tadashi Fujieda, Yuichi Sawai, Hajime Murakami, Hiroshi Yoshida, Akihiro Miyauchi, Masahiko Ogino