Patents by Inventor Hiroshi Hosaka
Hiroshi Hosaka 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: 20160227052Abstract: An image data transmission device includes a first generation unit, a distribution unit, a first reception unit, a second generation unit, and a first transmission unit. The first generation unit generates, from first moving image data, second moving image data to be distributed. The distribution unit distributes the second moving image data generated by the first generation unit to an external device. The first reception unit receives an acquisition request for still image data from the external device, with respect to the second moving image data being distributed by the distribution unit. The second generation unit generates still image data from the first moving image data according to the acquisition request. The first transmission unit transmits the still image data generated by the second generation unit to the external device as a response to the acquisition request.Type: ApplicationFiled: January 27, 2016Publication date: August 4, 2016Applicant: Ricoh Company, LimitedInventor: Hiroshi HOSAKA
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Patent number: 9234259Abstract: A process for recovering copper from an acid aqueous solution containing cupric chlorides and alkali metal and/or alkali earth metal chlorides by a solvent extraction with a cation-exchange extractant, comprising the step of processing a solvent extraction in the presence of sulfate ions.Type: GrantFiled: January 6, 2009Date of Patent: January 12, 2016Assignee: JX NIPPON MINING & METALS CORPORATIONInventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Akira Yoshimura, Takeshi Nakamura
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Patent number: 8585798Abstract: The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio. The treating steps are as follows. (1) Copper leaching process (CL). The raw material is charged into the first acidic aqueous solution, which contains cupric chloride, ferric chloride, 7 g/L of hydrochloric acid, and sodium chloride. The post-leach liquor contains copper in cuprous state ions and copper in cupric state ions. (2) Solid-Liquid separation step. The resultant solid and liquid of CL step are separated. (3) Air oxidation step (OX). Air is blown into the post solid-liquid separation liquor. The copper in cuprous state ions are oxidized to the copper in cupric state ions. The iron leached in the step (1) is oxidized. Simultaneously, the impurities leached in the step (2) are precipitated. (4) Copper extracting step (CEX).Type: GrantFiled: September 10, 2008Date of Patent: November 19, 2013Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Yasunari Ishiguro, Akira Yoshimura
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Patent number: 8388730Abstract: A process of leaching gold comprising the steps of: a) leaching copper from copper sulfide ore material that contains gold or contains silicate ore containing gold until the copper grade is reduced to 7.9 wt % or less; b) mixing the resulting material having a copper grade of 7.9 wt % or less with a gold leaching solution selected from the group consisting of a first solution containing chloride ions and ferric ions, and a second solution containing chloride ions and iron ions, the iron ions having been oxidized to trivalent ferric ions by air bubbled into the second solution; c) adjusting the pH of the gold leaching solution to 1.9 or less with stirring to leach at least gold in the material into the gold leaching solution by the oxidative activity of the ferric ions contained in the gold leaching solution, wherein the concentration of gold is reduced by selectively removing gold from part or all of the gold leaching solution during gold leaching.Type: GrantFiled: July 3, 2008Date of Patent: March 5, 2013Assignee: JX Nippon Mining & Metals CorporationInventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Yasunari Ishiguro, Akira Yoshimura
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Publication number: 20130034678Abstract: A number card 10a includes: a backing 11 including a front face 11a and a rear face 11b opposite to the front face 11a; a display portion formed on the front face 11a of the backing 11; a rear-face-side pressure-sensitive adhesive portion 12 formed on the rear face 11b of the backing 11; and a releasing portion 13 formed on the rear face 11b of the backing 11, wherein the rear-face-side pressure-sensitive adhesive portion 12 and the releasing portion 13 are formed in line symmetry on the rear face 11b of the backing 11.Type: ApplicationFiled: August 1, 2012Publication date: February 7, 2013Applicant: NITTO LIFETEC CORPORATIONInventors: Kazuhiro YAMAMOTO, Hiroshi HOSAKA, Yoshitake SHIGEMATSU
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Patent number: 7842120Abstract: A method of obtaining copper from feedstock includes: providing feedstock into acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper with use of oxidizing power of at least one of iron ion and copper ion, with air being blown into the acid solution under an atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution; blowing air into the solution; oxidizing copper in the solution; coprecipitating iron and impurity; extracting copper from the solution from which deposition including the coprecipitate is separated; obtaining the extracted copper into sulfuric acid solution as copper sulfate; obtaining copper from the copper sulfate; and recycling hydrochloric acid generated in the extracting in another copper leaching.Type: GrantFiled: July 30, 2008Date of Patent: November 30, 2010Assignee: JX Nippon Mining & Metals CorporationInventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Yasunari Ishiguro, Akira Yoshimura
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Patent number: 7682420Abstract: In a method for leaching gold from copper sulfides, the sulfide ores are first subjected to leaching of copper, thereby producing a leaching residue having 7.9% or less of the copper content. This leaching residue is mixed with a leach liquor, which contains the chloride ion and ferric ion and has 1.9 or less of pH. Gold and copper can be effectively leached from the copper sulfide ores. Ordinarily used oxidizing reagents such as hydrogen peroxide or nitric acid are not used. The gold, copper and iron can, therefore, be leached in a single process and by using an identical leaching liquor. The rate of gold leaching reaction can be enhanced by the co-presence of either copper or bromide ion or both together with the chloride and iron ion.Type: GrantFiled: September 5, 2007Date of Patent: March 23, 2010Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Yoshifumi Abe, Hiroshi Hosaka
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Publication number: 20100031779Abstract: A process for recovering copper from an acid aqueous solution containing cupric chlorides and alkali metal and/or alkali earth metal chlorides by a solvent extraction with a cation-exchange extractant, comprising the step of processing a solvent extraction in the presence of sulfate ions.Type: ApplicationFiled: January 6, 2009Publication date: February 11, 2010Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Akira Yoshimura, Takeshi Nakamura
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Publication number: 20090241732Abstract: A method of obtaining copper from sulfide ore including copper (hereinafter referred to as feedstock) includes: providing feedstock into acid solution, the acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper from the feedstock with use of oxidizing power of at least one of iron ion and copper ion in the acid solution, with air being blown into the acid solution under an atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution after the leaching; blowing air into the solution after the solid-liquid separation; oxidizing copper in the solution; coprecipitating iron and impurity that are leached into the acid solution from the feedstock; extracting copper from the solution after the oxidizing from which deposition including the coprecipitate is separated; obtaining the extracted copper iType: ApplicationFiled: July 30, 2008Publication date: October 1, 2009Inventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Yasunari Ishiguro, Akira Yoshimura
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Publication number: 20090241736Abstract: The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio. The treating steps are as follows. (1) Copper leaching process (CL). The raw material is charged into the first acidic aqueous solution, which contains cupric chloride, ferric chloride, 7 g/L of hydrochloric acid, and sodium chloride. The post-leach liquor contains copper in cuprous state ions and copper in cupric state ions. (2) Solid-Liquid separation step. The resultant solid and liquid of CL step are separated. (3) Air oxidation step (OX). Air is blown into the post solid-liquid separation liquor. The copper in cuprous state ions are oxidized to the copper in cupric state ions. The iron leached in the step (1) is oxidized. Simultaneously, the impurities leached in the step (2) are precipitated. (4) Copper extracting step (CEX).Type: ApplicationFiled: September 10, 2008Publication date: October 1, 2009Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Yasunari Ishiguro, Akira Yoshimura
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Publication number: 20090241735Abstract: A process of leaching gold comprising the steps of: a) leaching copper from copper sulfide ore material that contains gold or contains silicate ore containing gold until the copper grade is reduced to 7.9 wt % or less; b) mixing the resulting material having a copper grade of 7.9 wt % or less with a gold leaching solution selected from the group consisting of a first solution containing chloride ions and ferric ions, and a second solution containing chloride ions and iron ions, the iron ions having been oxidized to trivalent ferric ions by air bubbled into the second solution; c) adjusting the pH of the gold leaching solution to 1.9 or less with stirring to leach at least gold in the material into the gold leaching solution by the oxidative activity of the ferric ions contained in the gold leaching solution, wherein the concentration of gold is reduced by selectively removing gold from part or all of the gold leaching solution during gold leaching.Type: ApplicationFiled: July 3, 2008Publication date: October 1, 2009Inventors: Yoshifumi Abe, Hiroshi Hosaka, Kazuaki Takebayashi, Yasunari Ishiguro, Akira Yoshimura
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Patent number: 7580651Abstract: A method of controlling an energy saving mode in an image forming apparatus having hardware resources used in an image forming process and programs for performing the image forming process includes a step of letting the image forming apparatus enter into an energy saving mode in a standby state in which the image forming apparatus is not used, and a step of recovering at least part of functions of the image forming apparatus in response to setting of a data carrier in the image forming apparatus, said data carrier being in a possession of an operator.Type: GrantFiled: May 16, 2005Date of Patent: August 25, 2009Assignee: Ricoh Company, Ltd.Inventors: Yoshiyuki Namizuka, Hiroshi Hosaka, Keiichiroh Katoh, Mitsuhisa Kanaya, Yuji Takahashi, Fumio Kawamura, Jun Doi, Masayoshi Miyamoto, Tetsuya Kawaguchi, Hiroshi Soga
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Publication number: 20080078269Abstract: In a method for leaching gold from copper sulfides, the sulfide ores are first subjected to leaching of copper, thereby producing a leaching residue having 7.9% or less of the copper content. This leaching residue is mixed with a leach liquor, which contains the chloride ion and ferric ion and has 1.9 or less of pH. Gold and copper can be effectively leached from the copper sulfide ores. Ordinarily used oxidizing reagents such as hydrogen peroxide or nitric acid are not used. The gold, copper and iron can, therefore, be leached in a single process and by using an identical leaching liquor. The rate of gold leaching reaction can be enhanced by the co-presence of either copper or bromide ion or both together with the chloride and iron ion.Type: ApplicationFiled: September 5, 2007Publication date: April 3, 2008Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Yoshifumi Abe, Hiroshi Hosaka
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Publication number: 20050271410Abstract: A method of controlling an energy saving mode in an image forming apparatus having hardware resources used in an image forming process and programs for performing the image forming process includes a step of letting the image forming apparatus enter into an energy saving mode in a standby state in which the image forming apparatus is not used, and a step of recovering at least part of functions of the image forming apparatus in response to setting of a data carrier in the image forming apparatus, said data carrier being in a possession of an operator.Type: ApplicationFiled: May 16, 2005Publication date: December 8, 2005Inventors: Yoshiyuki Namizuka, Hiroshi Hosaka, Keiichiroh Katoh, Mitsuhisa Kanaya, Yuji Takahashi, Fumio Kawamura, Jun Doi, Masayoshi Miyamoto, Tetsuya Kawaguchi, Hiroshi Soga
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Publication number: 20050260009Abstract: A method of setting functions in an image forming apparatus having hardware resources used in an image forming process and programs for performing the image forming process includes a step of reading an information content of a data carrier that is in a possession of an operator, and a step of setting a function of the image forming apparatus in response to the read information content.Type: ApplicationFiled: May 16, 2005Publication date: November 24, 2005Inventors: Yoshiyuki Namizuka, Hiroshi Hosaka, Keiichiroh Katoh, Jun Doi, Mitsuhisa Kanaya, Tetsuya Kawaguchi, Fumio Kawamura, Masayoshi Miyamoto, Hiroshi Soga, Yuji Takahashi
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Patent number: 6785201Abstract: It is an optical information recording and reading apparatus for recording and/or reading information at a high density by using a near-field light-generating device as a near-field optical head. The end surface of the core of a flexible optical waveguide is formed in an intermediate position in the optical waveguide and in a portion fixed to the near-field optical head. Light for recording and reading information is spread within the clad. The spread light flux is reflected toward the near-field optical head by a reflective surface formed on the side of one end of the optical waveguide. The reflected light flux is collected by light-collecting structures and then is made to enter an optical minute aperture formed in the near-field optical head. Near-field light is created near the minute aperture. Light scattered by the surface of the recording medium is received. Thus, information on the recording medium can be recorded and read.Type: GrantFiled: June 21, 2002Date of Patent: August 31, 2004Assignees: Seiko Instruments Inc.Inventors: Yoko Shinohara, Yasuyuki Mitsuoka, Manabu Oumi, Nobuyuki Kasama, Hidetaka Maeda, Kenji Kato, Susumu Ichihara, Takashi Niwa, Toshifumi Ohkubo, Terunao Hirota, Hiroshi Hosaka, Kiyoshi Itao
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Publication number: 20030002426Abstract: It is an optical information recording and reading apparatus for recording and/or reading information at a high density by using a near-field light-generating device as a near-field optical head. The end surface of the core of a flexible optical waveguide is formed in an intermediate position in the optical waveguide and in a portion fixed to the near-field optical head. Light for recording and reading information is spread within the clad. The spread light flux is reflected toward the near-field optical head by a reflective surface formed on the side of one end of the optical waveguide. The reflected light flux is collected by light-collecting structures and then is made to enter an optical minute aperture formed in the near-field optical head. Near-field light is created near the minute aperture. Light scattered by the surface of the recording medium is received. Thus, information on the recording medium can be recorded and read.Type: ApplicationFiled: June 21, 2002Publication date: January 2, 2003Inventors: Yoko Shinohara, Yasuyuki Mitsuoka, Manabu Oumi, Nobuyuki Kasama, Hidetaka Maeda, Kenji Kato, Susumu Ichihara, Takashi Niwa, Toshifumi Ohkubo, Terunao Hirota, Hiroshi Hosaka, Kiyoshi Itao
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Patent number: 5918087Abstract: An image forming apparatus including a fixing roller and a pressure roller in which a temperature of the fixing roller and/or the pressure roller is changed differently depending on an operation mode. In particular, the temperature of the fixing roller and/or pressure roller of an operation of a non-full color mode is changed to a lesser degree than that of a full color mode operation. In another embodiment of the present invention, the temperature of the fixing roller is set to an appropriate value when an environment temperature sensor is not working properly, to produce high quality images. In yet another embodiment according to the present invention, the temperature of the fixing roller is set to an appropriate value, when an image forming apparatus is turned off for a predetermined period of time, to produce high quality images.Type: GrantFiled: July 18, 1997Date of Patent: June 29, 1999Assignee: Ricoh Company, Ltd.Inventors: Yoshiyuki Kimura, Hiroshi Hosaka
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Patent number: 5887217Abstract: In an image forming apparatus, a rotary developing device or revolver has a plurality of developing sections each storing a developer of particular color thereinside. The revolver is rotatable to sequentially move the developing sections to a preselected developing position so as to develop toner images sequentially formed on an image carrier. Toner cartridges are each removably mounted to the respective developing section. Only one of the cartridges located at a preselected replacing position can be pulled out and replaced. A toner cartridge is prevented from being accidentally mounted to the developing section located at the replacing position and whose cartridge has already been replaced.Type: GrantFiled: December 24, 1996Date of Patent: March 23, 1999Assignee: Ricoh Company, Ltd.Inventors: Yoshihiro Mitekura, Hiroshi Hosaka, Katsuhiro Kosuge
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Patent number: 5862430Abstract: In an image forming apparatus, a rotary developing device or revolver has a plurality of developing sections each storing a developer of particular color thereinside. The revolver is rotatable to sequentially move the developing sections to a preselected developing position so as to develop toner images sequentially formed on an image carrier. Toner cartridges are each removably mounted to the respective developing section. Only one of the cartridges located at a preselected replacing position can be pulled out and replaced. A toner cartridge is prevented from being accidentally mounted to the developing section located at the replacing position and whose cartridge has already been replaced.Type: GrantFiled: October 10, 1997Date of Patent: January 19, 1999Assignee: Ricoh Company, Ltd.Inventors: Yoshihiro Mitekura, Hiroshi Hosaka, Katsuhiro Kosuge