Patents by Inventor Takashi Kamada

Takashi Kamada 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: 11929353
    Abstract: A white light emitting device includes: first light-emitting units to which a first current is applied; and second light-emitting units to which a second current which is different from the first current is applied. When the first current is applied to the first light-emitting units and the second current is applied to the second light-emitting units, an average emission chromaticity of the first light-emitting units and an average emission chromaticity of the second light-emitting units are identical colors. When the same current is applied to both the first light-emitting units and the second light-emitting units, the average emission chromaticity of the first light-emitting units and the average emission chromaticity of the second light-emitting units are non-identical colors.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 12, 2024
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Hidesato Hisanaga, Tetsuya Kamada, Shigeo Hayashi, Takashi Kuwaharada
  • Patent number: 10357747
    Abstract: A method for producing a spiral wound separation membrane element includes preparing a composite semipermeable membrane having a skin layer on the surface of a porous support. The method further includes forming on the skin layer a protective layer containing 35 mg/m2 or more of an anionic polyvinyl alcohol to prepare a protective layer-equipped composite semipermeable membrane, preparing an unwashed spiral wound separation membrane element from the protective layer-equipped composite semipermeable membrane, and passing wash water through the unwashed spiral wound separation membrane element to remove the protective layer on the skin layer.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 23, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shinya Nishiyama, Taisuke Yamaguchi, Takahisa Konishi, Hiroki Fujioka, Takashi Kamada, Shinichi Inoue
  • Patent number: 10350553
    Abstract: The present invention provides a composite separation membrane with improved separation performance, particularly with an increased permeation flux. The composite separation membrane of the present invention includes a porous support (2) and a separation functional layer (1) formed on this support (2). The separation functional layer (1) is a polyamide membrane having a “double-folded structure” including a first layer portion (11) with a plurality of projections (15a, (15b . . . ) and a second layer portion (12) that covers at least one or some (15c and 15d) of these projections. Some projections (15a and 15b) of the first layer portion (11) extend upward and branch to form the second layer portion (12). There is a vacant space (13) between the first layer portion (11) and the second layer portion (12).
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: July 16, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takashi Kamada, Takuji Shintani, Toshinori Tsuru, Tomohisa Yoshioka, Chunlong Kong
  • Publication number: 20180280890
    Abstract: The purpose of the present invention is to provide a method for producing a spiral wound separation membrane element that is capable of maintaining the membrane performance of a composite semipermeable membrane before processing into an element and has excellent membrane performance. This method for producing a spiral wound separation membrane element includes: a step for preparing a composite semipermeable membrane having a skin layer on the surface of a porous support; a step for forming on the skin layer a protective layer containing 35 mg/m2 or more of an anionic polyvinyl alcohol to prepare a protective layer-equipped composite semipermeable membrane; a step for preparing an unwashed spiral wound separation membrane element using the protective layer-equipped composite semipermeable membrane; and a step for passing wash water through the unwashed spiral wound separation membrane element to remove the protective layer on the skin layer.
    Type: Application
    Filed: September 30, 2016
    Publication date: October 4, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinya NISHIYAMA, Taisuke YAMAGUCHI, Takahisa KONISHI, Hiroki FUJIOKA, Takashi KAMADA, Shinichi INOUE
  • Patent number: 9179022
    Abstract: Disclosed is an operation display device for carrying out a setting relating to an image forming device, including: a display device; an operating unit to receive an operation for starting a scroll display of a list in which a plurality of display items are listed, on a screen of the display device; and a control unit to control the scroll display so as to set a speed of the scroll display to a slow speed which is slower than a normal speed when the display item which satisfies a predetermined condition is displayed on the screen after the scroll display of the list is started by receiving the operation, wherein each display item has a plurality of attributes, and the control unit controls the scroll display in accordance with a satisfaction situation of the predetermined condition with respect to each of the plurality of attributes.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: November 3, 2015
    Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Hideaki Shimizu, Yasuaki Sugimoto, Takashi Kamada, Takashi Kondo
  • Patent number: 8518310
    Abstract: The present invention aims at providing a process for producing a dried composite semipermeable membrane having extremely small content of unreacted components, outstanding water permeability and salt-blocking rate even after drying treatment, and outstanding contamination resistance and durability.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: August 27, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Atsuhito Koumoto, Takashi Kamada, Tomomi Ohara
  • Patent number: 8511643
    Abstract: Provided are a diaphragm, a diaphragm valve, and a method of manufacturing a diaphragm capable of increasing a flow rate (Cv value) of gas without degrading long-term durability even when a displacement amount is increased. A diaphragm (1) has an outer diameter ? of 10 to 35 mm and includes a dome portion (1D) in a dome shape and a flange portion (1T) formed continuously at a peripheral edge of the dome portion (1D) via a boundary portion (1K), the boundary portion (1K) has a radius of curvature R of 0.6 mm or more on a convex side of the dome portion (1D), and the diaphragm is formed of a cobalt-based super-alloy.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 20, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Takashi Kamada, Kyotaro Takahashi
  • Patent number: 8427708
    Abstract: When an image is formed, a document including an original image and an original additional image is read to provide document image data, the additional image being visualized when the document is reproduced. Original image data in correspondence to the original image is extracted from the document image data, and output image data is created based on the extracted original image data. Then, printing is performed based on the created output image data.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: April 23, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Toshihiko Otake, Takashi Kamada
  • Publication number: 20130037482
    Abstract: The present invention provides a composite separation membrane with improved separation performance, particularly with an increased permeation flux. The composite separation membrane of the present invention includes a porous support (2) and a separation functional layer (1) formed on this support (2). The separation functional layer (1) is a polyamide membrane having a “double-folded structure” including a first layer portion (11) with a plurality of projections (15a, (15b . . . ) and a second layer portion (12) that covers at least one or some (15c and 15d) of these projections. Some projections (15a and 15b) of the first layer portion (11) extend upward and branch to form the second layer portion (12). There is a vacant space (13) between the first layer portion (11) and the second layer portion (12).
    Type: Application
    Filed: February 16, 2011
    Publication date: February 14, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takashi Kamada, Takuji Shintani, Toshinori Tsuru, Tomohisa Yoshioka, Chunlong Kong
  • Patent number: 8312350
    Abstract: In a mobile communication system, when a receiving condition is deteriorated to the extent that reception does not succeed even by means of combination after retransmission to the maximum number of retransmissions, a transmission rate is restricted by reducing radio frames assignable to new data, and by setting dedicated retransmission frames, to which retransmission data are assignable, over the maximum number of retransmissions for the reduced transmission rate, thereby enabling a greater number of retransmissions than the maximum number of retransmissions without an increase of a buffer size. By this, a combination gain through retransmission is improved and a retransmission failure rate is decreased.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: November 13, 2012
    Assignee: Fujitsu Limited
    Inventors: Toshifumi Fujimoto, Takashi Kamada
  • Publication number: 20120274665
    Abstract: Disclosed is an operation display device for carrying out a setting relating to an image forming device, including: a display device; an operating unit to receive an operation for starting a scroll display of a list in which a plurality of display items are listed, on a screen of the display device; and a control unit to control the scroll display so as to set a speed of the scroll display to a slow speed which is slower than a normal speed when the display item which satisfies a predetermined condition is displayed on the screen after the scroll display of the list is started by receiving the operation, wherein each display item has a plurality of attributes, and the control unit controls the scroll display in accordance with a satisfaction situation of the predetermined condition with respect to each of the plurality of attributes.
    Type: Application
    Filed: April 25, 2012
    Publication date: November 1, 2012
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Hideaki Shimizu, Yasuaki Sugimoto, Takashi Kamada, Takashi Kondo
  • Publication number: 20110233443
    Abstract: Provided are a diaphragm, a diaphragm valve, and a method of manufacturing a diaphragm capable of increasing a flow rate (Cv value) of gas without degrading long-term durability even when a displacement amount is increased. A diaphragm (1) has an outer diameter ? of 10 to 35 mm and includes a dome portion (1D) in a dome shape and a flange portion (1T) formed continuously at a peripheral edge of the dome portion (1D) via a boundary portion (1K), the boundary portion (1K) has a radius of curvature R of 0.6 mm or more on a convex side of the dome portion (1D), and the diaphragm is formed of a cobalt-based super-alloy.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 29, 2011
    Inventors: Takashi Kamada, Kyotaro Takahashi
  • Publication number: 20110079944
    Abstract: Provided are an alloy for spring, a plate material for spring, and a spring member, all of which are high in mechanical strength, also high in fatigue strength, and excellent in corrosion resistance. An alloy for spring of the present invention includes, as composition in terms of weight ratio, 28 to 42% Co, 10 to 27% Cr, 3 to 12% Mo, 15 to 40% Ni, 0.1 to 1.0% Ti, 1.5% or less Mn, 0.1 to 26.0% Fe, 0.1% or less C, and inevitable impurities, and at least one kind selected from 3.0% or less Nb, 5.0% or less W, 0.5% or less Al, 0.1% or less Zr, and 0.01% or less B.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 7, 2011
    Inventors: Yasunori Akasaka, Kyotaro Takahashi, Takashi Kamada, Ryo Sugawara, Tomoo Kobayashi
  • Publication number: 20100322190
    Abstract: A mobile terminal includes: a detection unit configured to detect reception timing of radio frames transmitted from first and second base stations; and an adjustment unit configured to adjust transmission timing of a radio frame transmitted from the mobile terminal to the first base station so that predetermined relationship between transmission timing of a radio frame transmitted from the first base station to the mobile terminal and the reception timing of a radio frame received by the first base station is satisfied, wherein the adjustment unit adjusts transmission timing of a radio frame transmitted from the mobile terminal to the second base station based on the adjusted transmission timing to the first base station and a difference between the reception timing of a radio frame transmitted from the first base station and the reception timing of a radio frame transmitted from the second base station detected by the detection unit.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 23, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Hideyori Satou, Shinji Konta, Takashi Kamada
  • Publication number: 20100176052
    Abstract: The present invention aims at providing a process for producing composite semipermeable membrane excellent in water permeability and salt-blocking rate, and including an extremely small amount of unreacted components in the membrane, and at providing a composite semipermeable membrane obtained by the production process. The present invention relates to a process for producing a composite semipermeable membrane, comprising the steps of: producing an unwashed composite semipermeable membrane by forming a skin layer including a polyamide resin obtained by reaction between a polyfunctional amine component and a polyfunctional acid halide component on the surface of a porous support; and pretreating the unwashed composite semipermeable membrane by contact to a solution containing a water-soluble alcohol, and subsequently performing a membrane washing treatment by contact to pure water or ion exchange water.
    Type: Application
    Filed: March 27, 2008
    Publication date: July 15, 2010
    Inventors: Atsuhito Koumoto, Takashi Kamada, Tomomi Ohara
  • Publication number: 20100173083
    Abstract: The present invention aims at providing a composite semipermeable membrane excellent in water permeability and salt-blocking rate, and including an extremely small amount of unreacted polyfunctional amine components in the membrane, and at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer comprising a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the content of an unreacted polyfunctional amine component is 200 mg/m2 or less after formation of the skin layer and before a membrane washing treatment, and the content of the unreacted polyfunctional amine component after the membrane washing treatment is 20 mg/m2 or less.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Inventors: Tomomi Ohara, Chiaki Harada, Tetsuo Inoue, Naoki Kurata, Takahisa Konishi, Takashi Kamada, Hironobu Machinaga
  • Publication number: 20100083067
    Abstract: In a mobile communication system, when a receiving condition is deteriorated to the extent that reception does not succeed even by means of combination after retransmission to the maximum number of retransmissions, a transmission rate is restricted by reducing radio frames assignable to new data, and by setting dedicated retransmission frames, to which retransmission data are assignable, over the maximum number of retransmissions for the reduced transmission rate, thereby enabling a greater number of retransmissions than the maximum number of retransmissions without an increase of a buffer size. By this, a combination gain through retransmission is improved and a retransmission failure rate is decreased.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 1, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Toshifumi FUJIMOTO, Takashi KAMADA
  • Publication number: 20080292279
    Abstract: A character identification section identifies characters to specify one or more characters in each of scenes in video content according to video data in the video content, and generates images of the identified characters. A speaker identification section identifies speakers to specify one or more speakers in each of the scenes in the video content according to subtitle data in the video content. A correspondence determination section determines, based on results of the specification of the characters and the specification of the speakers in the scenes in the video content, a correspondence between each of the characters and each of the speakers. A display control section controls display of the images of the characters to receive selection of a character desired by a user, and plays back one or more of the scenes in the video content in which the speaker speaks, who is determined to correspond to the selected character.
    Type: Application
    Filed: February 15, 2008
    Publication date: November 27, 2008
    Inventors: Takashi KAMADA, Naoki EJIMA
  • Publication number: 20080277334
    Abstract: The present invention aims at providing a composite semipermeable membrane excellent in water permeability and salt-blocking rate, a smaller content of unreacted polyfunctional amine components in the membrane, the composite semipermeable membrane avoiding the necessity of a membrane washing treatment, and the present invention also aims at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer, formed on a surface of a porous support, including a polyamide resin obtained by an interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the content of the unreacted polyfunctional amine component is 200 mg/m2 or less without removing by washing of an unreacted polyfunctional amine component after formation of the skin layer.
    Type: Application
    Filed: September 5, 2005
    Publication date: November 13, 2008
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tomomi Ohara, Chiaki Harada, Tetsuo Inoue, Naoki Kurata, Takahisa Konishi, Takashi Kamada
  • Publication number: 20080257818
    Abstract: The present invention aims at providing a composite semipermeable membrane having outstanding water permeability and salt-blocking rate, and extremely small amount of unreacted polyfunctional amine components in the porous support, and at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer comprising a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the porous support has a microporous layer on a base material, and the content of an unreacted polyfunctional amine component in the base material after a membrane washing treatment is 0.5 mg/m2 or less.
    Type: Application
    Filed: September 9, 2005
    Publication date: October 23, 2008
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takahisa Konishi, Tomomi Ohara, Chiaki Harada, Tetsuo Inoue, Naoki Kurata, Takashi Kamada, Hironobu Machinaga