Patents by Inventor Hidetoshi Ohta
Hidetoshi Ohta 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: 20220181555Abstract: Provided is a blue light-emitting material for organic light-emitting diode (OLED) comprising a phosphinine derivative and the OLED including the same. The light-emitting material for OLED of the present invention comprises the phosphinine derivative having an electron-withdrawing substituent at its C4 position of a phosphorus-containing six-membered ring. The OLED of the present invention has a pair of electrodes and organic layers including light-emitting layers between the pair of the electrodes, wherein the at least one light-emitting layer comprises an anthracene compound and the phosphinine derivative.Type: ApplicationFiled: November 8, 2021Publication date: June 9, 2022Applicants: NATIONAL UNIVERSITY CORPORATION EHIME UNIVERSITY, FLASK CorporationInventors: Minoru HAYASHI, Hidetoshi OHTA, Hisayuki KAWAMURA
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Patent number: 10435519Abstract: A composite resin material particle of the present invention includes: a resin material particle that is a material for producing a resin molding product; and a conductive nano-material, wherein a dispersion mixing layer, which is obtained by dispersedly mixing the conductive nano-material from the surface to the inside of the resin material particle, is formed over all of the surface or at least a part of the surface of the resin material particle, the conductive nano-material is dispersedly mixed within a resin material of the resin material particle in the dispersion mixing layer, and the whole of the dispersion mixing layer forms a conductive layer.Type: GrantFiled: July 16, 2010Date of Patent: October 8, 2019Assignee: TAIYO NIPPON SANSO CORPORATIONInventors: Takeru Yajima, Hidetoshi Ohta, Norihiro Nose
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Patent number: 9845517Abstract: The present invention provides a sub-zero treatment device capable of uniformly cooling a cooling target object and reducing the amount of liquid refrigerant used for cooling the cooling target object. The sub-zero treatment device has an exhaust member extending from a through-hole provided in a cooling tank constituting a cooling target object mounting chamber through to the interior of the cooling target object mounting chamber, and having an exhaust port, wherein the exhaust port is disposed in an exhaust port positioning space, which is the space located in the upper half of the cooling target object mounting chamber and having a width in the transverse direction that is equal to the maximum width in the transverse direction of the suction port.Type: GrantFiled: March 12, 2014Date of Patent: December 19, 2017Assignee: TAIYO NIPPON SANSO CORPORATIONInventors: Kosuke Mori, Masahiro Yonekura, Hidetoshi Ohta
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Publication number: 20160024606Abstract: The present invention provides a sub-zero treatment device capable of uniformly cooling a cooling target object and reducing the amount of liquid refrigerant used for cooling the cooling target object. The sub-zero treatment device has an exhaust member extending from a through-hole provided in a cooling tank constituting a cooling target object mounting chamber through to the interior of the cooling target object mounting chamber, and having an exhaust port, wherein the exhaust port is disposed in an exhaust port positioning space, which is the space located in the upper half of the cooling target object mounting chamber and having a width in the transverse direction that is equal to the maximum width in the transverse direction of the suction port.Type: ApplicationFiled: March 12, 2014Publication date: January 28, 2016Applicant: TAIYO NIPPON SANSO CORPORATIONInventors: Kosuke MORI, Masahiro YONEKURA, Hidetoshi OHTA
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Patent number: 8770907Abstract: A cryopreservation vessel of the present invention includes a vessel body which holds a low-temperature liquefied gas, a cap which closes an opening section of the vessel body and has a plurality of through holes that are formed so as to pass through in a vertical direction, and ampoule storing tools which are housed so as to be able to pass through the through holes of the cap, and the ampoule storing tools are each comprised of a support pillar and a plurality of ampoule storing sections which are equipped with the support pillar so as to be arrayed in a vertical direction of the support pillar.Type: GrantFiled: November 11, 2008Date of Patent: July 8, 2014Assignee: Taiyo Nippon Sanso CorporationInventors: Shigehiro Yoshimura, Masahiro Takeuchi, Mamoru Fujita, Hidetoshi Ohta
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Patent number: 8739556Abstract: A cryopreservation device of the present invention includes: a cryopreservation vessel; a house which houses the cryopreservation vessel; and a handling robot provided on the house, wherein the cryopreservation vessel comprises a vessel body which holds a low-temperature liquefied gas, a cap which closes an opening section of the vessel body and has a plurality of insertion holes formed to pass through in a vertical direction, and ampoule storing tools which are housed so as to be able to pass through the insertion holes of the cap, in which the ampoule storing tools are each comprised of a support pillar and a plurality of ampoule storing sections which are attached to the support pillar so as to be arrayed in a vertical direction of the support pillar, and an ampoule-putting-in/out work hole is formed in the cap so as to pass through in a vertical direction.Type: GrantFiled: November 11, 2008Date of Patent: June 3, 2014Assignee: Taiyo Nippon Sanso CorporationInventors: Shigehiro Yoshimura, Hidetoshi Ohta, Mamoru Fujita
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Publication number: 20120241692Abstract: A composite resin material particle of the present invention includes: a resin material particle that is a material for producing a resin molding product; and a conductive nano-material, wherein a dispersion mixing layer, which is obtained by dispersedly mixing the conductive nano-material from the surface to the inside of the resin material particle, is formed over all of the surface or at least a part of the surface of the resin material particle, the conductive nano-material is dispersedly mixed within a resin material of the resin material particle in the dispersion mixing layer, and the whole of the dispersion mixing layer forms a conductive layer.Type: ApplicationFiled: July 16, 2010Publication date: September 27, 2012Inventors: Takeru Yajima, Hidetoshi Ohta, Norihiro Nose
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Publication number: 20110120148Abstract: A cryopreservation device of the present invention includes: a cryopreservation vessel; a house which houses the cryopreservation vessel; and a handling robot provided on the house, wherein the cryopreservation vessel comprises a vessel body which holds a low-temperature liquefied gas, a cap which closes an opening section of the vessel body and has a plurality of insertion holes formed to pass through in a vertical direction, and ampoule storing tools which are housed so as to be able to pass through the insertion holes of the cap, in which the ampoule storing tools are each comprised of a support pillar and a plurality of ampoule storing sections which are attached to the support pillar so as to be arrayed in a vertical direction of the support pillar, and an ampoule-putting-in/out work hole is formed in the cap so as to pass through in a vertical direction.Type: ApplicationFiled: November 11, 2008Publication date: May 26, 2011Inventors: Shigehiro Yoshimura, Hidetoshi Ohta, Mamoru Fujita
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Publication number: 20100275636Abstract: A cryopreservation vessel of the present invention includes a vessel body which holds a low-temperature liquefied gas, a cap which closes an opening section of the vessel body and has a plurality of through holes that are formed so as to pass through in a vertical direction, and ampoule storing tools which are housed so as to be able to pass through the through holes of the cap, and the ampoule storing tools are each comprised of a support pillar and a plurality of ampoule storing sections which are equipped with the support pillar so as to be arrayed in a vertical direction of the support pillar.Type: ApplicationFiled: November 11, 2008Publication date: November 4, 2010Inventors: Shigehiro Yoshimura, Masahiro Takeuchi, Mamoru Fujita, Hidetoshi Ohta
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Patent number: 7776134Abstract: A molten metal treatment consisting of a liquid mixture in which fluorinated ketone is dissolved in liquid carbon dioxide at 0.01 to 10 wt % is put in a container, and the molten metal treatment is vaporized, and is fed as a cover gas to be contacted with the surface of a molten metal.Type: GrantFiled: May 19, 2009Date of Patent: August 17, 2010Assignee: Taiyo Nippon Sanso CorporationInventors: Hiroshi Sanui, Yuji Nomura, Hidetoshi Ohta, Shoji Sekihara
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Patent number: 7776132Abstract: A molten metal treatment consisting of a liquid mixture in which fluorinated ketone is dissolved in liquid carbon dioxide at 0.01 to 10 wt % is put in a container, and the molten metal treatment is vaporized, and is fed as a cover gas to be contacted with the surface of a molten metal.Type: GrantFiled: February 26, 2004Date of Patent: August 17, 2010Assignee: Taiyo Nippon Sanso CorporationInventors: Hiroshi Sanui, Yuji Nomura, Hidetoshi Ohta, Shoji Sekihara
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Publication number: 20090260484Abstract: A molten metal treatment consisting of a liquid mixture in which fluorinated ketone is dissolved in liquid carbon dioxide at 0.01 to 10 wt % is put in a container, and the molten metal treatment is vaporized, and is fed as a cover gas to be contacted with the surface of a molten metal.Type: ApplicationFiled: May 19, 2009Publication date: October 22, 2009Applicant: TAIYO NIPPON SANSO CORPORATIONInventors: Hiroshi Sanui, Yuji Nomura, Hidetoshi Ohta, Shoji Sekihara
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Patent number: 7550027Abstract: In order to provide a method for supplying a cover gas which has sufficient preventive effects of oxidation-combustion and prevents cost-increase by containing a necessary and sufficient amount of fluoroketone in the cover gas which is supplied in a melting furnace of magnesium, the present invention provides a method for supplying a cover gas containing fluoroketone in a melt furnace to prevent oxidation and combustion of a melt of magnesium in the melt furnace, wherein the moisture concentration of gas in the melt furnace is measured, and the concentration of fluoroketone in the cover gas is adjusted to a range from 1/50 to 1/5 relative to the moisture concentration.Type: GrantFiled: October 31, 2007Date of Patent: June 23, 2009Assignee: Taiyo Nippon Sanso CorporationInventors: Hiroshi Sanui, Yuji Nomura, Hidetoshi Ohta
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Publication number: 20080105087Abstract: In order to provide a method for supplying a cover gas which has sufficient preventive effects of oxidation-combustion and prevents cost-increase by containing a necessary and sufficient amount of fluoroketone in the cover gas which is supplied in a melting furnace of magnesium, the present invention provides a method for supplying a cover gas containing fluoroketone in a melt furnace to prevent oxidation and combustion of a melt of magnesium in the melt furnace, wherein the moisture concentration of gas in the melt furnace is measured, and the concentration of fluoroketone in the cover gas is adjusted to a range from 1/50 to 1/5 relative to the moisture concentration.Type: ApplicationFiled: October 31, 2007Publication date: May 8, 2008Applicant: TAIYO NIPPON SANSO CORPORATIONInventors: Hiroshi Sanui, Yuji Nomura, Hidetoshi Ohta
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Publication number: 20070146968Abstract: The present invention provides a separator for insulating a positive electrode and a negative electrode, the separator having mechanical strength and oxidation-reduction resistance while being excellent in impregnatability with an electrolytic solution and ion mobility like conventional cellulose-containing separators for insulating a positive electrode and a negative electrode. A separator for insulating a positive electrode and a negative electrode, wherein the separator comprises a porous sheet containing cellulose and a latex with which the porous sheet is impregnated.Type: ApplicationFiled: December 20, 2006Publication date: June 28, 2007Applicant: Power Systems Co., Ltd.Inventors: Hidetoshi Ohta, Keiichi Hayashi, Takashi Tanikawa, Atsushi Shimizu
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Patent number: 7214249Abstract: An object of the present invention is to provide a method for conducting electric activation of an electric double layer capacitor, the method making it possible to increase the electrostatic capacitance and to decrease the internal resistance. The method is for conducting electric activation of an electric double layer capacitor in which nonporous carbonaceous electrodes containing graphite-like fine crystalline carbon are soaked in an organic electrolytic solution. The method at least comprises: charging the electric double layer capacitor at a constant current until the interelectrode voltage reaches a predetermined voltage which is not lower than the electrostatic capacitance developing voltage but lower than the rated voltage; conducting constant voltage charging for a predetermined time during which ions of solutes in the organic electrolytic solution are conceived to be adsorbed uniformly on the surface of the fine crystalline carbon at that predetermined voltage.Type: GrantFiled: August 4, 2006Date of Patent: May 8, 2007Assignee: Power Systems Co., Ltd.Inventors: Hidetoshi Ohta, Keiichi Hayashi, Takashi Tanikawa, Atsushi Shimizu
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Publication number: 20070032031Abstract: An object of the present invention is to provide a method for conducting electric activation of an electric double layer capacitor, the method making it possible to increase the electrostatic capacitance and to decrease the internal resistance. The method is for conducting electric activation of an electric double layer capacitor in which nonporous carbonaceous electrodes containing graphite-like fine crystalline carbon are soaked in an organic electrolytic solution. The method at least comprises: charging the electric double layer capacitor at a constant current until the interelectrode voltage reaches a predetermined voltage which is not lower than the electrostatic capacitance developing voltage but lower than the rated voltage; conducting constant voltage charging for a predetermined time during which ions of solutes in the organic electrolytic solution are conceived to be adsorbed uniformly on the surface of the fine crystalline carbon at that predetermined voltage.Type: ApplicationFiled: August 4, 2006Publication date: February 8, 2007Applicant: Power Systems Co., Ltd.Inventors: Hidetoshi Ohta, Keiichi Hayashi, Takashi Tanikawa, Atsushi Shimizu
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Publication number: 20060238958Abstract: The objects of the present invention are to improve characteristics of electric double layer capacitors, such as energy density and charge-and-discharge rate, and to provide a positive electrode for electric double layer capacitors useful for the foregoing object, and a simple method for its production. Disclosed is a positive electrode for electric double layer capacitors comprising graphite-carbon composite particles, the graphite-carbon composite particle being composed of a graphite particle and a carbon layer covering the graphite particle.Type: ApplicationFiled: April 24, 2006Publication date: October 26, 2006Applicants: Power Systems Co., Ltd., Masaki Yoshio, Mitsui Mining Company, LimitedInventors: Hitoshi Nakamura, Keiichi Hayashi, Hidetoshi Ohta, Taiji Nakagawa, Masaki Yoshio, Tatsuo Umeno
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Publication number: 20060144190Abstract: A molten metal treatment consisting of a liquid mixture in which fluorinated ketone is dissolved in liquid carbon dioxide at 0.01 to 10 wt % is put in a container, and the molten metal treatment is vaporized, and is fed as a cover gas to be contacted with the surface of a molten metal.Type: ApplicationFiled: February 26, 2004Publication date: July 6, 2006Inventors: Hiroshi Sanui, Yuji Nomura, Hidetoshi Ohta, Shoji Sekihara
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Patent number: 7041273Abstract: An apparatus and method of generating a carburizing atmosphere stably generate a reformed gas containing carbon monoxide of high concentration that is suitably used as a carburizing atmosphere. A first reforming furnace and a second reforming furnace are connected in series. A first cooler that removes moisture in an intermediate reformed gas from the first reforming furnace and a hydrocarbon adding section that adds hydrocarbon to the intermediate reformed gas are disposed between the first and second reforming furnaces. A raw material mixed gas with a low mixture ratio of hydrocarbon is introduced into the first reforming furnace to cause a catalytic reaction, thereby generating the intermediate reformed gas. Moisture contained in the intermediate reformed gas is removed. Hydrocarbon is added to the intermediate reformed gas. The intermediate reformed gas is introduced into the second reforming furnace to cause a catalytic reaction, to generate a carburizing atmosphere.Type: GrantFiled: May 19, 2003Date of Patent: May 9, 2006Assignee: Koyo Thermo Systems Co., Ltd.Inventors: Tomohiro Wada, Hiroshi Kubo, Hidetoshi Ohta