Patents by Inventor Akio Mishima
Akio Mishima 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: 20240150649Abstract: A light-emitting element includes an anode electrode, a QD layer containing QDs, and a cathode electrode, in which the QDs are Cd-free quantum dots having a core-shell structure including a core containing at least Ag, Ga, and at least one of S and Se, and a shell containing at least Zn, and exhibit fluorescence characteristics with a fluorescence full-width at half-maximum of 40 nm or less and a fluorescence quantum yield percentage of 70% or more.Type: ApplicationFiled: March 31, 2021Publication date: May 9, 2024Inventors: Kazuki GOTO, Yusuke SAKAKIBARA, Masaki YAMAMOTO, Tatsuya RYOHWA, Akio MISHIMA, Soichiro NIKATA, Vit KALOUSEK, Yuko OGURA, Yoko MICHIWAKI
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Publication number: 20240107792Abstract: A light-emitting element includes an anode electrode, a cathode electrode, and a QD layer provided between the anode electrode and the cathode electrode, the QD layer containing the QDs. The QDs are AgInxGa1-xSySe1-y-based or ZnAgInxGa1-xSySe1-y-based Cd-free QDs (0?x<1, 0?y?1) and exhibit fluorescence characteristics having a fluorescent half width of 45 nm or less and a fluorescence quantum yield of 35% or more in a green wavelength region to a red wavelength region.Type: ApplicationFiled: February 18, 2021Publication date: March 28, 2024Inventors: Kazuki GOTO, YUSUKE SAKAKIBARA, Yuma YAGUCHI, Keisuke KITANO, Masaki YAMAMOTO, Soichiro NIKATA, Yoko MICHIWAKI, Yuko OGURA, Vit KALOUSEK, Akio MISHIMA
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Publication number: 20240079518Abstract: An object of the present invention is to provide a method for manufacturing quantum dots capable of containing a large amount of Zn on a surface thereof, and a quantum dot. A method for manufacturing quantum dots of the present invention includes a step of producing a core containing at least Ag, Ga, and S or Ag, Ga, and Se, and a step of coating a surface of the core with a shell, and in the step of coating with the shell, the surface of the core is coated with GaS, and then Zn is added. It is preferable that the surface of the core is coated with ZnS after being coated with GaS. It is preferable that the core and the shell do not contain Cd and In.Type: ApplicationFiled: December 24, 2021Publication date: March 7, 2024Applicant: NS MATERIALS INC.Inventors: Akio MISHIMA, Soichiro NIKATA, Vit KALOUSEK, Toshiaki SHIMASAKI, Yuko OGURA, Mikihiro TAKASAKI, Shogo UEDA, Yuya ASHIMURA
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Publication number: 20240059966Abstract: To provide Cd-free chalcopyrite-based quantum dots with a narrow fluorescence FWHM and a high fluorescence quantum yield. The quantum dots of the present invention contain AgInxGa1-xSySe1-y or ZnAgInxGa1-xSySe1-y (where 0?x<1 and 0?y?1) and exhibit fluorescence properties including a fluorescence FWHM of less than or equal to 45 nm and a fluorescence quantum yield of greater than or equal to 35% in the green wavelength range to the red wavelength range.Type: ApplicationFiled: October 24, 2023Publication date: February 22, 2024Applicant: NS MATERIALS INC.Inventors: Soichiro NIKATA, Yoko MICHIWAKI, Tomoaki HIEDA, Yuko OGURA, Akio MISHIMA, Vit KALOUSEK
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Patent number: 11834596Abstract: To provide Cd-free chalcopyrite-based quantum dots with a narrow fluorescence FWHM and a high fluorescence quantum yield. The quantum dots of the present invention contain AgInxGa1-xSySe1-y or ZnAgInxGa1-xSySe1-y (where 0?x<1 and 0?y?1) and exhibit fluorescence properties including a fluorescence FWHM of less than or equal to 45 nm and a fluorescence quantum yield of greater than or equal to 35% in the green wavelength range to the red wavelength range.Type: GrantFiled: July 31, 2020Date of Patent: December 5, 2023Assignee: NS MATERIALS INC.Inventors: Soichiro Nikata, Yoko Michiwaki, Tomoaki Hieda, Yuko Ogura, Akio Mishima, Vit Kalousek
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Publication number: 20210363422Abstract: To provide Cd-free chalcopyrite-based quantum dots with a narrow fluorescence FWHM and a high fluorescence quantum yield. The quantum dots of the present invention contain AgInxGa1-xSySe1-y or ZnAgInxGa1-xSySe1-y (where 0?x<1 and 0?y?1) and exhibit fluorescence properties including a fluorescence FWHM of less than or equal to 45 nm and a fluorescence quantum yield of greater than or equal to 35% in the green wavelength range to the red wavelength range.Type: ApplicationFiled: July 31, 2020Publication date: November 25, 2021Applicant: NS Materials Inc.Inventors: Soichiro NIKATA, Yoko MICHIWAKI, Tomoaki HIEDA, Yuko OGURA, Akio MISHIMA, Vit KALOUSEK
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Patent number: 8808797Abstract: Methods of manufacturing a gas barrier plastic container include a method in which the inside of a vacuum chamber which houses a plastic container is exhausted to form a pre-set pressure, and while maintaining a state where electricity is supplied to a thermal catalyst arranged inside the vacuum chamber to generate heat above a pre-set temperature, a source gas is blown on the thermal catalyst to decompose the source gas and create chemical species, whereby a gas barrier thin film is formed by the chemical species reaching at least one of either the inner surface or the outer surface of the plastic container.Type: GrantFiled: April 27, 2012Date of Patent: August 19, 2014Assignee: Kirin Beer Kabushiki KaishaInventors: Akio Mishima, Masaki Nakaya, Akira Shirakura
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Publication number: 20120205279Abstract: In an apparatus for forming a film on the inner surface of a container, a thermal catalyst is supported on a source gas supply pipe, and the source gas supply pipe is inserted into the port of the container, followed by film formation. In an apparatus for forming a film on the outer surface of a container, a thermal catalyst is arranged on the periphery of the plastic, and a source gas is blown out through the source gas supply pipe while bringing the source gas into contact with the thermal catalyst for film formation. Cooling is carried out to avoid the thermal deformation of the container by heat radiated from the thermal catalyst.Type: ApplicationFiled: April 27, 2012Publication date: August 16, 2012Applicant: KIRIN BEER KABUSHIKI KAISHAInventors: Akio MISHIMA, Masaki NAKAYA, Akira SHIRAKURA
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Patent number: 8186301Abstract: The object of the present invention is to provide an apparatus for manufacturing a gas barrier plastic container which simultaneously satisfies the condition that the same vacuum chamber can be used even when the container shapes are different, the condition that a high-frequency power source is unnecessary, and the condition that film formation can be carried out for a plurality of containers inside one vacuum chamber in order to make the apparatus low cost. In an apparatus for forming a film on the inner surface of a container, a thermal catalyst is supported on a source gas supply pipe, and the source gas supply pipe is inserted into the port of the container, followed by film formation. In an apparatus for forming a film on the outer surface of a container, a thermal catalyst is arranged on the periphery of the plastic, and a source gas is blown out through the source gas supply pipe while bringing the source gas into contact with the thermal catalyst for film formation.Type: GrantFiled: May 26, 2006Date of Patent: May 29, 2012Assignee: Kirin Beer Kabushiki KaishaInventors: Akio Mishima, Masaki Nakaya, Akira Shirakura
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Publication number: 20090061111Abstract: The object of the present invention is to provide an apparatus for manufacturing a gas barrier plastic container which simultaneously satisfies the condition that the same vacuum chamber can be used even when the container shapes are different, the condition that a high-frequency power source is unnecessary, and the condition that film formation can be carried out for a plurality of containers inside one vacuum chamber in order to make the apparatus low cost. In an apparatus for forming a film on the inner surface of a container, a thermal catalyst is supported on a source gas supply pipe, and the source gas supply pipe is inserted into the port of the container, followed by film formation. In an apparatus for forming a film on the outer surface of a container, a thermal catalyst is arranged on the periphery of the plastic, and a source gas is blown out through the source gas supply pipe while bringing the source gas into contact with the thermal catalyst for film formation.Type: ApplicationFiled: May 26, 2006Publication date: March 5, 2009Applicant: Kirin Beer kabushiki KaishaInventors: Akio Mishima, Masaki Nakaya, Akira Shirakura
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Patent number: 6895657Abstract: A method for producing a slider for an optical head includes a slider member adapted for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium. An optical lens is bonded to the slider member and a magnetic field generator provided on a surface of the slider member carrying the optical lens facing the recording medium. A first step is forming a groove presenting a bottom surface inclined in the depth-wise direction by ejecting a polishing agent dispersed in a compressed gas on a substrate. A second step is charging an electrically conductive material, which proves a terminal electrically connected to the magnetic field generator in the inside of the groove formed in the substrate. A third step is cutting the substrate in the vicinity of an end of the groove to form a plurality of individual slider members.Type: GrantFiled: September 23, 2002Date of Patent: May 24, 2005Assignee: Sony CorporationInventors: Akio Mishima, Toru Katakura
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Patent number: 6781950Abstract: A slider for an optical head for signal recording and/or reproduction on or from a recording medium which, even if reduced in size, assures optimum signal recording and/or reproduction on or from a recording medium, and which may be produced readily. The slider for the optical head includes a slider member for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium, an optical lens bonded to the slider member and a magnetic field generating unit provided on a surface of the slider member carrying the optical lens facing the recording medium. The slider member is formed with a terminal groove opened in a its surface facing the recording medium and in its lateral surface, with an electrically conductive material being charged in the terminal groove. The electrically conductive material charged forms a terminal electrically connected to the magnetic field generating unit.Type: GrantFiled: February 14, 2001Date of Patent: August 24, 2004Assignee: Sony CorporationInventors: Akio Mishima, Toru Katakura
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Publication number: 20040141427Abstract: Recording/reproducing information signals to/from a recording medium appropriately even though the clearance from the signal recording surface of the recording medium to an optical head slider becomes significantly small. An optical head slider 10 includes a sliding member 11 which is floated and slides on a recording medium 4 at the time of recording/reproducing signals to/from the recording medium 4, a hemispheric objective lens 12 which is bonded to the sliding member 11, and a magnetic field generating means 16, which is mounted to the bottom of the sliding member 11 which faces the recording medium 4. The sliding member 11 is made of the same material as that of the optical lens 12, and a flat surface of the optical lens 12 is bonded to the top surface of the sliding member 11.Type: ApplicationFiled: December 11, 2003Publication date: July 22, 2004Inventors: Akio Mishima, Kenjiro Watanabe
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Patent number: 6762978Abstract: Recording/reproducing information signals to/from a recording medium appropriately even though the clearance from the signal recording surface of the recording medium to an optical head slider becomes significantly small. An optical head slider 10 includes a sliding member 11 which is floated and slides on a recording medium 4 at the time of recording/reproducing signals to/from the recording medium 4, a hemispheric objective lens 12 which is bonded to the sliding member 11, and a magnetic field generating means 16, which is mounted to the bottom of the sliding member 11 which faces the recording medium 4. The sliding member 11 is made of the same material as that of the optical lens 12, and a flat surface of the optical lens 12 is bonded to the top surface of the sliding member 11.Type: GrantFiled: September 18, 2001Date of Patent: July 13, 2004Assignee: Sony CorporationInventors: Akio Mishima, Kenjiro Watanabe
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Publication number: 20030016620Abstract: A slider for an optical head for signal recording and/or reproduction on or from a recording medium which, even if reduced in size, assures optimum signal recording and/or reproduction on or from a recording medium, and which may be produced readily. The slider for the optical head includes a slider member for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium, an optical lens bonded to the slider member and a magnetic field generating unit provided on a surface of the slider member carrying the optical lens facing the recording medium. The slider member is formed with a terminal groove opened in a its surface facing the recording medium and in its lateral surface, with an electrically conductive material being charged in the terminal groove. The electrically conductive material charged forms a terminal electrically connected to the magnetic field generating unit.Type: ApplicationFiled: September 23, 2002Publication date: January 23, 2003Inventors: Akio Mishima, Toru Katakura
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Patent number: 6437164Abstract: Biphenyl and phosphorus trichloride are reacted in the presence of aluminum chloride, a hydrogen chloride gas generated is removed, a pyridine is added, excess phosphorus trichloride is removed, a resulting reaction product containing the obtained phosphine compound of the formula: and a phenol compound of the formula: wherein R is a hydrogen atom or methyl and R1 and R2 are each a hydrogen atom or alkyl having 1 to 5 carbon atoms, are reacted in the presence of a base as a deacidifying agent, and hydrochloride of this base and a pyridine-aluminum chloride complex are removed. By this method, a high quality phosphonite compound containing phosphinobiphenylene of the formula: can be produced safely in a high yield.Type: GrantFiled: July 6, 2001Date of Patent: August 20, 2002Assignee: Yoshitomi Fine Chemicals, Ltd.Inventors: Masataka Yamamoto, Masahiro Kasagi, Takashi Yokomatsu, Akio Mishima, Yoshihiro Ozaki
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Publication number: 20020034129Abstract: Recording/reproducing information signals to/from a recording medium appropriately even though the clearance from the signal recording surface of the recording medium to an optical head slider becomes significantly small. An optical head slider 10 includes a sliding member 11 which is floated and slides on a recording medium 4 at the time of recording/reproducing signals to/from the recording medium 4, a hemispheric objective lens 12 which is bonded to the sliding member 11, and a magnetic field generating means 16, which is mounted to the bottom of the sliding member 11 which faces the recording medium 4. The sliding member 11 is made of the same material as that of the optical lens 12, and a flat surface of the optical lens 12 is bonded to the top surface of the sliding member 11.Type: ApplicationFiled: September 18, 2001Publication date: March 21, 2002Applicant: Sony CorporationInventors: Akio Mishima, Kenjiro Watanabe
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Publication number: 20020001259Abstract: A slider for an optical head for signal recording and/or reproduction on or from a recording medium which, even if reduced in size, assures optimum signal recording and/or reproduction on or from a recording medium, and which may be produced readily. The slider for the optical head includes a slider member for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium, an optical lens bonded to the slider member and a magnetic field generating unit provided on a surface of the slider member carrying the optical lens facing the recording medium. The slider member is formed with a terminal groove opened in a its surface facing the recording medium and in its lateral surface, with an electrically conductive material being charged in the terminal groove. The electrically conductive material charged forms a terminal electrically connected to the magnetic field generating unit.Type: ApplicationFiled: February 14, 2001Publication date: January 3, 2002Inventors: Akio Mishima, Toru Katakura
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Publication number: 20010007808Abstract: A surface processing method by blowing submicron particles is disclosed, in which submicron particles are blown against a surface of a work to deposit a layer of the material of the particles on a surface of the work, or etching the surface of the work.Type: ApplicationFiled: March 25, 1999Publication date: July 12, 2001Inventors: AKIO MISHIMA, NAOTO KOJIMA
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Patent number: 6083087Abstract: A powder beam working system for working a surface to be worked of an object to be worked by dispersing fine particles in high-pressure gas and projecting a solid-gas two-phase flow thus produced to the surface of the object to be worked which comprises means which temporarily stores the fine particles, a dispersing chamber which forms a portion of a flow path for the high-pressure gas and sending means which sends out the fine particles stored in the storing means into the dispersing chamber at a predetermined rate as the fine particles are in a solid phase state, thereby being capable of adjusting a flow rate of the produced solid-gas two-phase flow and an amount of the fine particles contained in the solid-gas two-phase flow easily and individually.Type: GrantFiled: June 29, 1998Date of Patent: July 4, 2000Assignee: Sony CorporationInventors: Akio Mishima, Koji Shimotoku