Patents by Inventor Akira Kuriyama

Akira Kuriyama 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).

  • METHOD FOR PRODUCING COLUMNAR STRUCTURED MATERIAL
    Publication number: 20100003822
    Abstract: A microcolumnar structured material having a desired material. The columnar structured material includes columnar members obtained by introducing a filler into columnar holes formed in a porous material. The porous material has the columnar holes formed by removing columnar substances from a structured material in which the columnar substances containing a first component are dispersed in a matrix member containing a second component capable of forming a eutectic with the first component. The matrix member may be removed. In the columnar structured material, the filler is a conductive material, and an electrode can be structured by electrically connecting the conductive materials in at least a part of a plurality of holes to a conductor.
    Type: Application
    Filed: September 8, 2009
    Publication date: January 7, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hirokatsu Miyata, Albrecht Otto, Akira Kuriyama, Miki Ogawa, Hiroshi Okura, Kazuhiko Fukutani, Tohru Den
  • DEVICE
    Publication number: 20090179197
    Abstract: A device is provided by use of a helical substituted polyacetylene. The device comprises a structure comprised of a helical substituted polyacetylene having a helical main chain, and a pair of electrodes for applying a voltage or electric current to the structure, wherein the molecule of the helical substituted polyacetylene has a length larger than the distance between the pair of the electrodes.
    Type: Application
    Filed: September 21, 2007
    Publication date: July 16, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeyuki Sone, Akira Kuriyama, Koji Yano, Otto Albrecht, Masayoshi Tabata
  • Method for manufacturing dispersion and ink using dispersion obtained thereby
    Patent number: 7557150
    Abstract: A method for manufacturing a dispersion, the method including a step of forming a reaction product by allowing at least two types of liquids to react with each other, the dispersion including a dispersion medium and particles formed from the reaction product dispersed therein. In the method described above, the at least two types of liquids are ejected from independently provided respective nozzles so that traveling directions of the liquids ejected therefrom intersect with each other at an angle of 120° or less and so that the liquids then flow in an integrated manner, whereby the reaction product is generated.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: July 7, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Teshima, Kazumichi Nakahama, Yukio Hanyu, Mamoru Sakashita, Akira Kuriyama
  • Method for producing porous ceramic
    Patent number: 7537716
    Abstract: The present invention relates to a method for producing porous ceramic, the method including molding a mixture containing a water absorbent polymer particle, a ceramic raw material, and water, the water absorbent polymer particle having a water absorption amount in a range of 5 to 30 ml/g at a pressure of 980 Pa, and heating and baking the resulting molded product. The water absorbent polymer particle is preferably composed of a polymer having a 2-acrylamide-2-methylpropanesulfonic acid unit or an acrylamide unit as a constituting monomer unit.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: May 26, 2009
    Assignees: Toagosei Co., Ltd., NGK Insulators, Ltd.
    Inventors: Morikatsu Matsunaga, Koushi Yamamoto, Akira Kuriyama
  • BLOCK POLYMER, COMPOSITE OF METAL AND BLOCK POLYMER, AND DEVICE
    Publication number: 20090061255
    Abstract: A composite having a metal substance bonded to a block polymer. The composite is capable of electric bonding via the metallic substance. A device in which a pair of electrodes are connected via a polymer chain of the block polymer. The block polymer has in at least a part thereof a block structure of a repeating unit that has in a side chain thereof an organic functional group for bonding to at least one of the metallic entities. The polymer main chain of the block structure has a helical shape. In the composite of a metal and the block polymer, a part of the block structure of the block polymer is bonded to the metal species. In the device having the block polymer and an electrode composed of the metallic substance, a part of the block structure of the block polymer is bonded to the metallic substance.
    Type: Application
    Filed: August 25, 2008
    Publication date: March 5, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeyuki Sone, Otto Albrecht, Akira Kuriyama, Koji Yano
  • PIGMENT INK COMPOSITION AND COATING MATERIAL
    Publication number: 20090025603
    Abstract: A pigment ink composition has high transparency and good color characteristics such as a high OD that are not inferior to those of dyes, even though pigment particles are used, and also has good weatherability and remaining ability on the coating and printing medium surface that are inherent to pigment particles. The pigment ink composition contains pigment particles including at least needle pigment particles, a dispersant, and a solvent. The needle pigment particles have a needle shape with an aspect ratio of at least 3, an average aspect ratio of at least 5 and at most 7, an average short dimension of at least 20 nm and at most 30 nm, and a distribution of short dimension with a standard deviation of 2.0 nm or less. The needle pigment particles are covered with the dispersant.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 29, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akira Kuriyama, Takayuki Teshima, Kazumichi Nakahama, Rie Ueno, Masatoshi Watanabe, Takeo Suga
  • METHOD FOR MANUFACTURING DISPERSION OF QUINOLINE DERIVATIVE
    Publication number: 20090020043
    Abstract: A method for manufacturing a dispersion of a quinoline derivative that is dispersed at a high concentration and has a small particle size. The method includes the steps of preparing a solution by dissolving an N-arylanthranilic acid derivative in an organosulfonic acid, heating the solution and obtaining a reaction liquid in which a quinoline derivative has been produced by a condensation ring-closing reaction, and obtaining a dispersion of the quinoline derivative by mixing the reaction liquid with an aqueous solution. The step of mixing the reaction liquid with an aqueous solution may be performed in a mixing field having a micro-channel.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 22, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Teshima, Kazumichi Nakahama, Akira Kuriyama
  • Power control circuit, semiconductor device and transceiver circuit using the same
    Publication number: 20080305756
    Abstract: There is provided a power control circuit having a stable high-speed operation, and a semiconductor device and a transceiver circuit using it. The power control circuit controls the gain of an amplifier so that power outputted from the amplifier reaches a desired value according to a digital control signal.
    Type: Application
    Filed: August 7, 2008
    Publication date: December 11, 2008
    Inventors: Akira Kuriyama, Satoshi Tanaka
  • COLUMNAR STRUCTURED MATERIAL AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20080223824
    Abstract: A method of manufacturing a dot pattern includes the steps of preparing a structured material composed of a plurality of columnar members containing a first component and a region containing a second component different from the first component surrounding the columnar members, with the structured material being formed by depositing the first component and the second component on a substrate, and removing the columnar members from the structured material to form a porous material having a columnar hole. In addition, a material is introduced into the columnar hole portions of the porous material to form a dot pattern, and the porous material is removed.
    Type: Application
    Filed: May 13, 2008
    Publication date: September 18, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Miki Ogawa, Hirokatsu Miyata, Albrecht Otto, Akira Kuriyama, Hiroshi Okura, Tohru Den, Kazuhiko Fukutani
  • SUBSTITUTED POLYACETYLENE, COMPLEX AND DEVICE STRUCTURE
    Publication number: 20080220283
    Abstract: A substituted polyacetylene having an organic functional group bondable to the surface of a metal, a metal oxide or an alloy at least one of the polymer terminals, and a device structure having the substituted polyacetylene and two or more independent electrodes. A helical substituted polyacetylene having a helical structure with a periodic main chain. The organic functional group is at least one selected from the group consisting of a thiol group, a sulfide group, a disulfide group, a thioacetyl group, an isocyanide group, a carboxylic acid group and a phosphoric acid group.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 11, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeyuki Sone, Akira Kuriyama, Otto Albrecht, Koji Yano
  • HELICAL SUBSTITUTED POLYACETYLENE STRUCTURE, METHOD FOR PRODUCING THE SAME, DEVICE STRUCTURE, ION TRANSPORT FILM AND GAS SEPARATION FILM
    Publication number: 20080220258
    Abstract: A helical substituted polyacetylene structure including a substrate and a substituted polyacetylene with a periodic main chain having a helical periodic structure, wherein the substituted polyacetylene is disposed inclined on the surface of the substrate with the inclination angle between the main helical axis of the substituted polyacetylene and the surface of the substrate falling in a range of 60° or more and 90° or less. A device structure in which a first electrode, the substituted polyacetylene with the periodic main chain having a helical periodic structure and a second electrode are sequentially disposed on a substrate.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 11, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeyuki Sone, Akira Kuriyama, Otto Albrecht, Koji Yano
  • Power control circuit, semiconductor device and transceiver circuit using the same
    Patent number: 7415254
    Abstract: There is provided a power control circuit having a stable high-speed operation, and a semiconductor device and a transceiver circuit using it. The power control circuit controls the gain of an amplifier so that power outputted from the amplifier reaches a desired value according to a digital control signal.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: August 19, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Akira Kuriyama, Satoshi Tanaka
  • METHOD FOR PRODUCING A PIGMENT
    Publication number: 20080182984
    Abstract: Provided is a method for producing a pigment, in particular, a metal phthalocyanine, in high yield and in a green process. The method has (1) a step of obtaining a solution mixture by mixing at least one type of compound serving as a raw material for a pigment with a solvent, and (2) a step of obtaining the pigment by reacting the compound while holding the solution mixture at not less than a temperature where a subcritical state or a supercritical state of the solvent occurs.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazumichi Nakahama, Yukio Hanyu, Takayuki Teshima, Akira Kuriyama, Toshihiko Hiaki, Kiwamu Sue, Hayato Hattori, Hironori Yamamoto
  • Columnar structured material and method of manufacturing the same
    Patent number: 7387967
    Abstract: A method of manufacturing a dot pattern includes the steps of preparing a structured material composed of a plurality of columnar members containing a first component and a region containing a second component different from the first component surrounding the columnar members, with the structured material being formed by depositing the first component and the second component on a substrate, and removing the columnar members from the structured material to form a porous material having a columnar hole. Additional steps include introducing a mask material into the columnar hole of the porous material to form a dot pattern, and removing the porous material.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: June 17, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miki Ogawa, Hirokatsu Miyata, Albrecht Otto, Akira Kuriyama, Hiroshi Okura, Tohru Den, Kazuhiko Fukutani
  • RF POWER AMPLIFYING DEVICE AND WIRELESS COMMUNICATION TERMINAL DEVICE
    Publication number: 20080125061
    Abstract: A RF power amplifying device is constituted by a system of a balanced amplifier including first phase shifters, a first RF power amplifier, a second RF power amplifier, second phase shifters, and a power combiner. Transmitting power Pout is detected by a first power level detector connected to an output of the first RF power amplifier, a second power level detector connected to an output of the second RF power amplifier, and an adder. A level control signal from a level control circuit controls transmitting power in response to a transmitting signal with wanted power level and a detected signal of the adder.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 29, 2008
    Inventors: Akira Kuriyama, Hidetoshi Matsumoto
  • High frequency power amplifier
    Patent number: 7368996
    Abstract: Disclosed is a power amplifier having highly stable and excellent controllability, and having low noise in comparison with conventional power amplifiers. With the power amplifier, a differential amplifier made up of transistors Q1, Q2 is provided in the initial stage thereof, and baluns doubling as inter-stage matching circuits, comprised of Cp1, Cp2, Lp1, and Ct1, Ct2, Lt1, respectively, are provided between the initial stage, and a second stage while an unbalanced single-ended circuit is provided in the second stage. The differential amplifier has an emitter-coupled type configuration for coupling both emitters with each other, and output control of the amplifier in the initial stage is executed by varying current of a current source coupled to both the emitters.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: May 6, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Tomonori Tanoue, Masami Ohnishi, Hidetoshi Matsumoto, Akira Kuriyama
  • METHOD AND APPARATUS FOR FORMING A CONTINUOUS ORIENTED STRUCTURE OF A POLYMER
    Publication number: 20080099129
    Abstract: A method and an apparatus for easily making a continuous oriented structure of a polymer are provided. In making a polymer assembly, single crystals are bonded to each other, an external force, such as an electrical field or a magnetic field, is applied to the single crystals, or a solution of the polymer is applied on a substrate such that the applied solution is linear in shape.
    Type: Application
    Filed: October 22, 2007
    Publication date: May 1, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akira Kuriyama, Takeyuki Sone, Otto Albrecht, Koji Yano
  • High frequency power amplifier
    Publication number: 20070176687
    Abstract: Disclosed is a power amplifier having highly stable and excellent controllability, and having low noise in comparison with conventional power amplifiers. With the power amplifier, a differential amplifier made up of transistors Q1, Q2 is provided in the initial stage thereof, and baluns doubling as inter-stage matching circuits, comprised of Cp1, Cp2, Lp1, and Ct1, Ct2, Lt1, respectively, are provided between the initial stage, and a second stage while an unbalanced single-ended circuit is provided in the second stage. The differential amplifier has an emitter-coupled type configuration for coupling both emitters with each other, and output control of the amplifier in the initial stage is executed by varying current of a current source coupled to both the emitters.
    Type: Application
    Filed: August 24, 2005
    Publication date: August 2, 2007
    Inventors: Tomonori Tanoue, Masami Ohnishi, Hidetoshi Matsumoto, Akira Kuriyama
  • METHOD FOR MANUFACTURING DISPERSION AND INK USING DISPERSION OBTAINED THEREBY
    Publication number: 20070149651
    Abstract: A method for manufacturing a dispersion, includes a step of forming a reaction product by allowing at least two types of liquids to react with each other, the dispersion including a dispersion medium and particles formed from the reaction product dispersed therein. In the method described above, the at least two types of liquids are ejected from independently provided respective nozzles so that traveling directions of the liquids ejected therefrom intersect with each other at an angle of 120° or less and so that the liquids then flow in an integrated manner, whereby the reaction product is generated.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 28, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takayuki Teshima, Kazumichi Nakahama, Yukio Hanyu, Mamoru Sakashita, Akira Kuriyama
  • Radio frequency power amplifier module
    Patent number: 7221228
    Abstract: An object of the present invention is to provide a radio frequency power amplifier of multi stage amplifying method that is designed to reduce instability of output power caused by electromagnetic coupling of bias supply terminals and interconnections of each stage to thereby operate stably. Another object of the present invention is to provide a radio frequency power amplifier that is designed to reduce distortion of output power caused by electromagnetic coupling of bias supply terminals and interconnections of each stage to thereby provide high efficiency.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: May 22, 2007
    Assignee: Renesas Technology Corporation
    Inventors: Akira Kuriyama, Masami Ohnishi