Patents by Inventor Hiroshi Tabata

Hiroshi Tabata 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).

  • Patent number: 11198893
    Abstract: Provided is a method for producing an unsaturated fatty acid oxide (e.g. ?3 fatty acid oxide) that is new and has more beneficial features compared to conventional technologies. This method uses a lipoxygenase-containing composition (e.g. a lipoxygenase-containing composition derived from beans) as a lipoxygenase enzyme, and also uses a freezing method with organic solvent extraction. The present invention makes it possible to produce an unsaturated fatty acid oxide (e.g. ?3 fatty acid oxide) efficiently and at a low cost. The present invention also provides a pharmaceutical composition containing an ?3 fatty acid oxide isolated and purified by this method as an active ingredient.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: December 14, 2021
    Assignee: Bizen Chemical Co., Ltd.
    Inventors: Shiho Saito, Yoshihisa Misawa, Naomichi Baba, Hiroshi Tabata, Tadahiro Tsushima, Jun Fujii
  • Publication number: 20200140903
    Abstract: Provided is a method for producing an unsaturated fatty acid oxide (e.g. ?3 fatty acid oxide) that is new and has more beneficial features compared to conventional technologies. This method uses a lipoxygenase-containing composition (e.g. a lipoxygenase-containing composition derived from beans) as a lipoxygenase enzyme, and also uses a freezing method with organic solvent extraction. The present invention makes it possible to produce an unsaturated fatty acid oxide (e.g. ?3 fatty acid oxide) efficiently and at a low cost. The present invention also provides a pharmaceutical composition containing an ?3 fatty acid oxide isolated and purified by this method as an active ingredient.
    Type: Application
    Filed: June 19, 2017
    Publication date: May 7, 2020
    Inventors: Shiho Saito, Yoshihisa Misawa, Naomichi Baba, Hiroshi Tabata, Tadahiro Tsushima, Jun Fujii
  • Patent number: 10522181
    Abstract: Provided is an optical recording medium including two or more recording layers, and a light irradiation surface that is irradiated with light for recording an information signal on the two or more recording layers. Among the two or more recording layers, at least one layer other than a layer located on the deepest side from the light irradiation surface includes an oxide of a metal A, an oxide of a metal B, and an oxide of a metal C. The metal A is at least one kind among W, Mo, and Zr, the metal B is Mn, and the metal C is at least one kind among Cu, Ag, and Ni. Ratios of the metal A, the metal B, and the metal C satisfy a relationship of 0.46?x1 (provided that, x1=a/(b+0.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 31, 2019
    Assignee: Sony Corporation
    Inventor: Hiroshi Tabata
  • Publication number: 20190108854
    Abstract: Provided is an optical recording medium including two or more recording layers, and a light irradiation surface that is irradiated with light for recording an information signal on the two or more recording layers. Among the two or more recording layers, at least one layer other than a layer located on the deepest side from the light irradiation surface includes an oxide of a metal A, an oxide of a metal B, and an oxide of a metal C. The metal A is at least one kind among W, Mo, and Zr, the metal B is Mn, and the metal C is at least one kind among Cu, Ag, and Ni. Ratios of the metal A, the metal B, and the metal C satisfy a relationship of 0.46?x1 (provided that, x1=a/(b+0.
    Type: Application
    Filed: March 22, 2017
    Publication date: April 11, 2019
    Inventor: Hiroshi TABATA
  • Patent number: 10252972
    Abstract: A method of chemically extending a carbon chain of an unsaturated fatty acid for conversion into a different unsaturated fatty acid has been reported. The present invention shortens reaction steps of conventional methods, and completes a carbon chain extending reaction in a shorter time. The present invention provides a method of extending a carbon chain of an unsaturated fatty acid by two carbons, comprising steps of four stages including a short-path conversion reaction of an unsaturated fatty chain obtained from an unsaturated fatty acid into a malonic ester derivative, and heating of the malonic ester derivative to reflux in a lower fatty acid solution. The method of the present invention can complete a carbon chain extending reaction in a shorter time.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: April 9, 2019
    Assignee: Bizen Chemical Co., Ltd.
    Inventors: Naomichi Bamba, Yoshihisa Misawa, Hiroshi Tabata, Yoshio Shimizu
  • Patent number: 10196584
    Abstract: A production method of highly unsaturated fatty acids with a high purity/high yield that compensates for shortcomings of conventional techniques is provided. A purification method of highly unsaturated fatty acids and/or derivatives thereof comprising (a) contacting and stirring first raw materials comprising the substances with a first silver salt aqueous solution to collect a first oil layer and a first aqueous layer; (b) separating the first aqueous layer into a second silver salt aqueous solution and the substances; and (c) contacting and stirring the first oil layer with the second silver salt aqueous solution for separation into an oil layer and an aqueous layer to obtain a second aqueous layer comprising the substances.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: February 5, 2019
    Assignee: Bizen Chemical Co., Ltd.
    Inventors: Hiroshi Tabata, Tetsuro Taira, Jun Fujii, Yoshihisa Misawa, Yoshio Shimizu
  • Patent number: 10176839
    Abstract: An optical recording medium includes a reflective layer, a first dielectric layer, a phase-change recording layer, and a second dielectric layer. The phase-change recording layer has an average composition represented by SbxInyMz, in which M is at least one of Mo, Ge, Mn, and Al, and x, y, and z are values in the ranges 0.70?x?0.92, 0.05?y?0.20, and 0.03?z?0.10, respectively, provided that x+y+z=1, the first dielectric layer includes a zirconium oxide-containing composite material or tantalum oxide, and the second dielectric layer includes a chromium oxide-containing composite material or silicon nitride.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: January 8, 2019
    Assignee: SONY CORPORATION
    Inventor: Hiroshi Tabata
  • Publication number: 20180186720
    Abstract: A method of chemically extending a carbon chain of an unsaturated fatty acid for conversion into a different unsaturated fatty acid has been reported. The present invention shortens reaction steps of conventional methods, and completes a carbon chain extending reaction in a shorter time. The present invention provides a method of extending a carbon chain of an unsaturated fatty acid by two carbons, comprising steps of four stages including a short-path conversion reaction of an unsaturated fatty chain obtained from an unsaturated fatty acid into a malonic ester derivative, and heating of the malonic ester derivative to reflux in a lower fatty acid solution. The method of the present invention can complete a carbon chain extending reaction in a shorter time.
    Type: Application
    Filed: June 27, 2016
    Publication date: July 5, 2018
    Inventors: Naomichi BAMBA, Yoshihisa MISAWA, Hiroshi TABATA, Yoshio SHIMIZU
  • Publication number: 20180148664
    Abstract: A production method of highly unsaturated fatty acids with a high purity/high yield that compensates for shortcomings of conventional techniques is provided. A purification method of highly unsaturated fatty acids and/or derivatives thereof comprising (a) contacting and stirring first raw materials comprising the substances with a first silver salt aqueous solution to collect a first oil layer and a first aqueous layer; (b) separating the first aqueous layer into a second silver salt aqueous solution and the substances; and (c) contacting and stirring the first oil layer with the second silver salt aqueous solution for separation into an oil layer and an aqueous layer to obtain a second aqueous layer comprising the substances.
    Type: Application
    Filed: May 30, 2016
    Publication date: May 31, 2018
    Inventors: Hiroshi Tabata, Tetsuro Taira, Jun Fujii, Yoshihisa Misawa, Yoshio Shimizu
  • Publication number: 20180047423
    Abstract: An optical recording medium includes a reflective layer, a first dielectric layer, a phase-change recording layer, and a second dielectric layer. The phase-change recording layer has an average composition represented by SbxInyMz, in which M is at least one of Mo, Ge, Mn, and Al, and x, y, and z are values in the ranges 0.70?x?0.92, 0.05?y?0.20, and 0.03?z?0.10, respectively, provided that x+y+z=1, the first dielectric layer includes a zirconium oxide-containing composite material or tantalum oxide, and the second dielectric layer includes a chromium oxide-containing composite material or silicon nitride.
    Type: Application
    Filed: November 18, 2015
    Publication date: February 15, 2018
    Inventor: HIROSHI TABATA
  • Patent number: 9418694
    Abstract: A mark having a length nT (n being an integer equal to or greater than 3 and T being a clock period) is formed by modulating irradiation laser power with three values of recording power Pw, erase power Pe, and bias power Pb (Pw>Pe>Pb). Constant strength periods (At) of the recording power Pw are set as AtT, A1T, . . . , and AmT and constant strength periods (Bt) of the bias power Pb are set as BtT, B1T, . . . , BmT, and CT (C=?1 to 3). The application of laser is divided into pulses in order of AtT, BtT, A1T, B1T, . . . , AmT, BmT, and CT (m=(n?k)/2, k=3 (if n is an odd number), or k=4 (if n is an even number)). (Here, the constant strength period of the recording power Pw for n=3, n=4, n?5 (odd number), and n?6 (even number) is set as At3, At4, Atod, and Atev, the constant strength period of the bias power Pb for n=3, n=4, n?5 (odd number), and n?6 (even number) is set as Bt3, Bt4, Btod, and Btev, and then, At3+Bt3=Atod+Btod=Am+Bm=2T and At4+Bt4=Atev+Btev=3T).
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: August 16, 2016
    Assignee: JVC KENWOOD CORPORATION
    Inventors: Hiroshi Tabata, Kazuo Yonehara, Yasuhiro Ueki
  • Publication number: 20160193546
    Abstract: The present invention provides a separation method and device, comprising columns with at least two types of gels selected from the group consisting of silica gel, silver nitrate-impregnated gel and polymer gel filled therein, preferably at least three silver nitrate-impregnated gel columns and at least one silica gel column, by SMB chromatography. The present invention also provides a separation method and device, comprising columns with at least two types of columns selected from the group consisting of C18 columns, C8 columns C4 columns and C1 columns, preferably at least three C18 columns and at least one C8 column and/or C4 column and/or C1 column, by SMB chromatography.
    Type: Application
    Filed: July 7, 2014
    Publication date: July 7, 2016
    Inventors: Yoshio Shimizu, Hiroshi Tabata, Mitsumasa Mankura
  • Patent number: 9196391
    Abstract: A polyurea electrolyte includes a polyurea resin formed by a polymerization of a first compound having two or more isocyanate groups and a second compound having two or more amino groups. The first compound or the second compound contains ten or more carbon chains, and the first compound or the second compound contains a sulfonic acid group or a carboxylic acid group. A method for manufacturing the polyurea electrolyte includes neutralizing the sulfonic acid group or the carboxylic acid group in the first compound or the second compound by a neutralizing agent; after the neutralizing, polymerizing the first compound and the second compound; and after the polymerizing, removing the neutralizing agent from a polymer of the first compound and the second compound.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: November 24, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takuya Hasegawa, Shogo Takamuku, Tetsuya Samura, Hiroshi Tabata, Toyo Yano
  • Publication number: 20150279409
    Abstract: A mark having a length nT (n being an integer equal to or greater than 3 and T being a clock period) is formed by modulating irradiation laser power with three values of recording power Pw, erase power Pe, and bias power Pb (Pw>Pe>Pb). Constant strength periods (At) of the recording power Pw are set as AtT, A1T, . . . , and AmT and constant strength periods (Bt) of the bias power Pb are set as BtT, B1T, . . . , BmT, and CT (C=?1 to 3). The application of laser is divided into pulses in order of AtT, BtT, A1T, B1T, . . . , AmT, BmT, and CT (m=(n?k)/2, k=3 (if n is an odd number), or k=4 (if n is an even number)). (Here, the constant strength period of the recording power Pw for n=3, n=4, n?5 (odd number), and n?6 (even number) is set as At3, At4, Atod, and Atev, the constant strength period of the bias power Pb for n=3, n=4, n?5 (odd number), and n?6 (even number) is set as Bt3, Bt4, Btod, and Btev, and then, At3+Bt3=Atod+Btod=Am+Bm=2T and At4+Bt4=Atev+Btev=3T).
    Type: Application
    Filed: April 6, 2015
    Publication date: October 1, 2015
    Inventors: Hiroshi TABATA, Kazuo YONEHARA, Yasuhiro UEKI
  • Patent number: 9081461
    Abstract: A display device includes a display panel, and a flexible printed circuit that is a wiring connected to a terminal on a glass substrate of the display panel, and transmitting an image signal. The display panel includes a master driver circuit element, a slave driver circuit element, and an inter-driver signal line that is a wiring on the glass substrate for conducting a communication between the master driver circuit element and the slave driver circuit element. The flexible printed circuit includes a connection terminal portion that is connected to the terminal on the glass substrate, and an electromagnetic wave blocking portion that extends from the connection terminal portion toward the display area side, and is arranged on the inter-driver signal line, and has a rear surface conductive pattern which is a planer conductive pattern formed on a surface facing the glass substrate.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: July 14, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Norio Mamba, Yoshio Oowaki, Hiroshi Tabata, Shinichi Iwasaki
  • Patent number: 9025424
    Abstract: A mark having a length nT (n being an integer equal to or greater than 3 and T being a clock period) is formed by modulating irradiation laser power with three values of recording power Pw, erase power Pe, and bias power Pb (Pw>Pe>Pb). Constant strength periods (At) of the recording power Pw are set as AtT, A1T, . . . , and AmT and constant strength periods (B) of the bias power Pb are set as BtT, B1T, . . . , BmT, and CT (C=?1 to 3). The application of laser is divided into pulses in order of AtT, BtT, A1T, B1T, . . . , AmT, BmT, and CT (m=(n?k)/2, k=3 (if n is an odd number), or k=4 (if n is an even number)). (Here, the constant strength period of the recording power Pw for n=3, n=4, n?5 (odd number), and n?6 (even number) is set as At3, At4, Atod, and Atev, the constant strength period of the bias power Pb for n=3, n=4, n?5 (odd number), and n?6 (even number) is set as Bt3, Bt4, Btod, and Btev, and then, At3+Bt3=Atod+Btod=Am+Bm=2T and At4+Bt4=Atev+Btev=3T).
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: May 5, 2015
    Assignee: JVC Kenwood Corporation
    Inventors: Hiroshi Tabata, Kazuo Yonehara, Yasuhiro Ueki
  • Patent number: 8865286
    Abstract: An optical information recording medium includes: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers. At least one of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer. And at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: October 21, 2014
    Assignee: Sony Corporation
    Inventors: Hiroshi Tabata, Takeshi Miki
  • Publication number: 20140099466
    Abstract: An optical information recording medium includes: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers. At least one of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer. And at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Sony Corporation
    Inventors: Hiroshi Tabata, Takeshi Miki
  • Patent number: 8642152
    Abstract: An optical information recording medium including: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers, wherein the surface of one of the side of the substrate and the cover layer is a light irradiation plane, wherein at least one of the information signal layers other than the information signal layer at the deepest portion from the light irradiation plane includes an inorganic recording layer that includes a W oxide and a Pd oxide, a first protective layer that is provided on a first principal plane of the inorganic recording layer, and a second protective layer that is provided on a second principal plane of the inorganic recording layer, wherein at least one of the first protective layer and the second protective layer is a layer with an extinction coefficient of 0.05 to 0.6.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: February 4, 2014
    Assignee: Sony Corporation
    Inventor: Hiroshi Tabata
  • Patent number: 8632870
    Abstract: An optical information recording medium includes a recording layer capable of recording information signals on the basis of application of light, wherein the recording layer contains an oxide of metal X and an oxide of metal Y, the metal X is at least one type selected from the group consisting of tungsten and molybdenum, and the metal Y is at least one type selected from the group consisting of copper, manganese, nickel, and silver.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 21, 2014
    Assignee: Sony Corporation
    Inventor: Hiroshi Tabata