Patents Assigned to Kochi University of Technology
  • Patent number: 10058847
    Abstract: A titanium-oxide catalyst containing catalytic metal shows catalysis under high temperature conditions. A titanium-oxide catalyst contains a titanium-oxide nanoparticle assembly and ruthenium particles. The titanium-oxide nanoparticle assembly is an assembly of titanium-oxide nanoparticles, which are nanoparticles of titanium oxide. The ruthenium particles have a smaller particle diameter than the titanium-oxide nanoparticle assembly and the titanium-oxide nanoparticles. The ruthenium particles are dispersed and supported on a surface of the titanium-oxide nanoparticle assembly.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: August 28, 2018
    Assignees: Nippon Pillar Packing Co., Ltd., Kochi University of Technology
    Inventors: Kazuya Kobiro, Masataka Otani, Keiichiro Moriwaki, Yukimi Hayashi
  • Patent number: 10010872
    Abstract: A titanium-oxide catalyst containing catalytic metal shows catalysis under high temperature conditions. A titanium-oxide catalyst contains a titanium-oxide nanoparticle assembly and ruthenium particles. The titanium-oxide nanoparticle assembly is an assembly of titanium-oxide nanoparticles, which are nanoparticles of titanium oxide. The ruthenium particles have a smaller particle diameter than the titanium-oxide nanoparticle assembly and the titanium-oxide nanoparticles. The ruthenium particles are dispersed and supported on a surface of the titanium-oxide nanoparticle assembly.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 3, 2018
    Assignees: Nippon Pillar Packing Co., Ltd., Kochi University of Technology
    Inventors: Kazuya Kobiro, Masataka Otani, Keiichiro Moriwaki, Yukimi Hayashi
  • Patent number: 9363196
    Abstract: The present invention is provided with: a data-driven processor comprising at least a firing control which determines whether or not firing conditions have been met by determining whether or not all packets necessary for instruction execution have been received when a packet that convey a part of partitioned data to be processed has been input, and a data processing unit for performing processing corresponding to the packets transmitted from the firing control if the firing conditions have been met; a power supply circuit for supplying power to the data-driven processor; and overload avoidance means for refusing input of the packets to the data-driven processor, if a determination has been made that a data processing load in the data-driven processor may reach an overloaded state in which the data processing may stall, on the basis of current consumption in the data-driven processor. Accordingly, power consumption in a networking system is reduced.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: June 7, 2016
    Assignees: University of Tsukuba, Kochi University of Technology, Tokai University
    Inventors: Hiroaki Nishikawa, Shuji Sannomiya, Makoto Iwata, Hiroshi Ishii, Keisuke Utsu
  • Publication number: 20150249812
    Abstract: In a stereoscopic image processing device, disparity distribution of a stereoscopic image can be adaptively transformed in accordance with visual characteristics of a person relating to stereoscopic vision. The stereoscopic image processing device includes a disparity distribution transformation section (30) that transforms disparity distribution of a stereoscopic image input by an input section (10). The disparity distribution transformation section (30) reduces a difference in disparity between adjacent pixels in an area of the stereoscopic image, in which the difference in disparity between the adjacent pixels is large.
    Type: Application
    Filed: August 30, 2013
    Publication date: September 3, 2015
    Applicant: Kochi University of Technology
    Inventors: Ikuko Tsubaki, Mikio Seto, Hisao Kumai, Hiroaki Shigemasu
  • Publication number: 20140335356
    Abstract: Problem. Provided are a method for synthesizing spherical porous titanium oxide nanoparticles, which is easy to operate, does not take a long time for synthesis, and can easily adjust the particle diameter and the pore diameter of the spherical porous titanium oxide nanoparticles in accordance with the application thereof; spherical porous titanium oxide nanoparticles produced by the synthesizing method; and a gene gun carrier consisting of the spherical porous titanium oxide nanoparticles. Solution. A method for synthesizing spherical porous titanium oxide nanoparticles, includes: a step of reacting titanium isopropoxide and carboxylic acid in supercritical fluid, wherein the supercritical fluid is supercritical methanol, and the carboxylic acid is formic acid, acetic acid, benzoic acid, o-phthalic acid, fumaric acid, or maleic acid.
    Type: Application
    Filed: January 27, 2012
    Publication date: November 13, 2014
    Applicant: Kochi University of Technology
    Inventors: Kazuya Kobiro, Pengyu Wang, Takeshi Ohama
  • Patent number: 8599941
    Abstract: Continuous-phase high compaction multicarrier-modulation (CPPC/HC-MCM) according to the present application uses a continuous phase modulation (CPM) technique to prevent an amplitude gap between two continuous signals, thereby improving characteristics of the conventional PC/HC-MCM in terms of effective use of a frequency bandwidth. The CPPC/HC-MCM can achieve a lower bit error rate (BER) for a wide signal-to-noise ratio at a common spectral efficiency of about 0.33 or less, as compared to the conventional unmodulated PC/HC-MCM.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: December 3, 2013
    Assignee: Kochi University of Technology
    Inventor: Masanori Hamamura
  • Patent number: 8565209
    Abstract: In a communication system adapted to MIMO transmission, a receiver may include a filter to filter signals received from a transmitter through the receiver antennas and having a weight matrix thereof updated by an adaptive algorithm with respect to each substream message symbol from the transmitter, and a code generator to feed back a part of the weight matrix updated by the filter, as an updated STF code, to the transmitter. The transmitter may make the transmission using the updated STF code which is optimized for a current channel state.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: October 22, 2013
    Assignee: Kochi University of Technology
    Inventor: Masanori Hamamura
  • Patent number: 8363172
    Abstract: A liquid crystal motor, which makes use of the flow of liquid crystal, is provided. A mechanism for causing a flow of liquid crystal comprising (i) a channel “L” defined by at least one wall surface “B,” (ii) liquid crystal “LC” which is put in the channel “L” and movable along said at least one wall surface “B”, and (iii) a means for turning the molecules “m” of the liquid crystal “LC” in a plane intersecting said at least one wall surface “B.” The mechanism makes use of the flow of the liquid crystal “LC” which is caused when the molecules “m” of the liquid crystal “LC” are turned. When the means for turning the molecules “m” of the liquid crystal “LC” turns the molecules “m” of the liquid crystal “LC” in a plane intersecting said at least one wall surface “B,” the liquid crystal “LC” flows along said at least one wall surface “B.” The flow of the liquid crystal “LC” can easily be utilized for making object-moving devices, sensors, actuators, etc.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: January 29, 2013
    Assignee: Kochi University of Technology
    Inventors: Shigeomi Chono, Tomohiro Tsuji
  • Patent number: 8262886
    Abstract: The present invention provides a method for analyzing characteristics of a particulate, comprising: selecting at least one particulate in a fluid; positioning said selected particulate in the vicinity of a pair of electrodes; applying a programmed voltage signal for generating a spatially inhomogeneous electric field between said pair of electrodes; detecting the movement of the particulate while applying said programmed voltage signal to create a time-series data corresponding to said movement of the particulate; and analyzing the characteristics of said particulate based on said time-series data.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: September 11, 2012
    Assignee: Kochi University of Technology
    Inventor: Hiroshi Furusawa
  • Patent number: 8102894
    Abstract: In a communication system including a plurality of pairs of a transmitting device 2 and a receiving device 3, the transmission performance in the pairs is to be improved. The transmitting device 2-k transmits a transmission signal sk(t) to the receiving device 3-k a plurality of number of times. The receiving device 3-k updates the weight matrix Wk and the hopping pattern Pk used by the FIR filter which performs filtering on the transmission signal rk(t) at a predetermined time interval. The receiving device 3-k transmits the updated hopping pattern Pk to the transmitting device 2-k. The transmitting device 2-k receives the hopping pattern Pk to be used for subsequent spread spectrum.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: January 24, 2012
    Assignee: Kochi University of Technology
    Inventors: Masanori Hamamura, Kazuki Chiba
  • Patent number: 8090000
    Abstract: Communication performance is to be improved in a communication system in which a plurality of wireless communication lines share space. A transmitting device 2 transmits a transmission signal to a base station 6 a plurality of number of times. The base station 6 updates a weight wk to be used for an FIR filter, generates a hopping pattern Pk to be used by the transmitting device 2 for generating a transmission signal, adjusts the hopping pattern Pk so as to suppress a peak-to-average ratio (PAR) occurring in the transmission signal to generate a hopping pattern P?k, quantizes the hopping pattern P?k, and transmits the quantized hopping pattern P?k to the transmitting device 2. The transmitting device 2 uses the hopping pattern P?k received from the base station 6 in subsequent spread spectrum to generate a transmission signal.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: January 3, 2012
    Assignee: Kochi University of Technology
    Inventor: Masanori Hamamura
  • Patent number: 8073018
    Abstract: Jitter and waveform are improved by reducing the wavelength spectrum width of a laser beam pulse. In a laser pulse generating apparatus according to the present invention, a semiconductor laser device, a polarization maintaining optical fiber, an optical reflection filter having bandpass characteristics using an FBG whose passband can be changed by changing a tension, and an optical isolator are connected via an optical fiber. A driving circuit drives the semiconductor laser device to generate a pulse. The optical reflection filter performs filtering by transmitting a specific component of the wavelength spectrum of the pulse, reflects a portion of the optical power, and outputs the remaining optical power except the reflected portion to the outside via the optical isolator. The reflected pulse is fed back to the semiconductor laser device to thereby reduce the wavelength spectrum width of the laser beam, and improve the jitter and waveform.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: December 6, 2011
    Assignee: Kochi University of Technology
    Inventor: Koji Nonaka
  • Patent number: 8019005
    Abstract: A reception program maps, by PC mapping, the values of message data to symbol x, which describes the combinations of Mp carrier waves of Mc carrier waves with value-1 bits corresponding to the carrier waves to be transmitted, and receives the transmit signal created by performing transformation processing thereon to sample y. A matrix computing portion performs transformation processing on sample y? in a parallel form including an unnecessary signal component to symbol z?. A first decoding portion sequentially performs maximum likelihood value decoding on groups of M bits of symbol z? and finally decodes all of the symbol z? to symbol x?. If the symbol x? includes Mp value-1 bits, a second decoding portion handles the symbol x? as the final decoding result and if not, the second decoding portion performs maximum likelihood decoding on the entire symbol z? to obtain the final decoding result.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: September 13, 2011
    Assignee: Kochi University of Technology
    Inventor: Masanori Hamamura
  • Patent number: 7826029
    Abstract: A mechanism and a method for causing a flow of liquid crystal, which can be utilized industrially, and an object-moving mechanism, which makes use of the flow of liquid crystal, are provided. A mechanism for causing a flow of liquid crystal comprising (i) a channel “L” defined by at lease one wall surface “B,” (ii) liquid crystal “LC” which is put in the channel “L” and movable along said at least one wall surface “B”, and (iii) a means for turning the molecules “m” of the liquid crystal “LC” in a plane intersecting said at least one wall surface “B.” The mechanism makes use of the flow of the liquid crystal “LC” which is caused when the molecules “m” of the liquid crystal “LC” are turned. When the means for turning the molecules “m” of the liquid crystal “LC” turns the molecules “m” of the liquid crystal “LC” in a plane intersecting said at least one wall surface “B,” the liquid crystal “LC” flows along said at least one wall surface “B.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: November 2, 2010
    Assignee: Kochi University of Technology
    Inventors: Shigeomi Chono, Tomohiro Tsuji
  • Publication number: 20100183048
    Abstract: In a communication system including a plurality of pairs of a transmitting device 2 and a receiving device 3, the transmission performance in the pairs is to be improved. The transmitting device 2-k transmits a transmission signal sk(t) to the receiving device 3-k a plurality of number of times. The receiving device 3-k updates the weight matrix Wk and the hopping pattern Pk used by the FIR filter which performs filtering on the transmission signal rk(t) at a predetermined time interval. The receiving device 3-k transmits the updated hopping pattern Pk to the transmitting device 2-k. The transmitting device 2-k receives the hopping pattern Pk to be used for subsequent spread spectrum.
    Type: Application
    Filed: July 15, 2008
    Publication date: July 22, 2010
    Applicant: Kochi University of Technology
    Inventors: Masanori Hamamura, Kazuki Chiba
  • Patent number: 7651640
    Abstract: A gallium containing zinc oxide with an improved heat ray shielding function while keeping high transparency to visible light rays is provided. A gallium containing zinc oxide, which has a heat ray shielding function, a gallium content in the range of 0.25 to 25 % by weight, and a carrier electron density ne of 2×1020/ cm3 or higher.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: January 26, 2010
    Assignees: Sekisui Chemical Co., Ltd., Kochi University of Technology
    Inventors: Juichi Fukatani, Bungo Hatta, Tetsuya Yamamoto
  • Publication number: 20090242887
    Abstract: A display substrate is disclosed comprising: a supporting substrate; an organic resin layer formed on the supporting substrate; and a transparent electrode formed on the organic resin layer, wherein the transparent electrode includes: a first layer containing a zinc oxide and formed in close contact with the organic resin layer; and a second layer containing a zinc oxide and which has a thickness thicker than a thickness of the first layer and is formed on the first layer, wherein the first layer is deposited by either one of a DC sputtering and a DC magnetron sputtering, and the second layer is deposited by any one of a radio frequency sputtering, a radio frequency magnetron sputtering, a radio frequency superimposing a DC sputtering, and a radio frequency superimposing a DC magnetron sputtering, and the display substrate is available, for example, as the substrate having a transparent electrode for counter electrode of liquid crystal display device.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicants: CASIO COMPUTER CO., LTD., Kochi University of Technology
    Inventors: Tetsuya YAMAMOTO, Naoki YAMAMOTO, Hisao MAKINO, Akira UJIHARA, Yoshinori HIRASHIMA, Hiroaki IWAOKA, Hisashi AOKI, Hitoshi HOKARI, Motohiko YOSHIDA
  • Publication number: 20080315160
    Abstract: It is an object of the present invention to provide a gallium containing zinc oxide with an improved heat ray shielding function while keeping high transparency to visible light rays. The present invention is directed to a gallium containing zinc oxide, which has a heat ray shielding function, a gallium content of in the range of 0.25 to 25% by weight, and a carrier electron density ne of 2×1020/cm3 or higher.
    Type: Application
    Filed: February 23, 2006
    Publication date: December 25, 2008
    Applicants: Sekisui Chemicals Co., Ltd., Kochi University of Technology
    Inventors: Juichi Fukatani, Bungo Hatta, Tetsuya Yamamoto
  • Patent number: 7324182
    Abstract: In a rotating mechanism including a pair of members 11 and 11 having opposed surfaces B which are opposed to each other and provided to be relatively movable in a state in which the opposed surfaces B are opposed to each other, a liquid crystal LC provided between the opposed surfaces B and B of the members 11 and 11, and liquid crystal molecule rotating means for rotating a liquid crystal molecule m of the liquid crystal LC in a crossing surface crossing one of the opposed surfaces B and B, the liquid crystal molecule rotating means includes a pair of orientation films 12 and 12 formed on the opposed surfaces B and B, and the orientation films 12 and 12 are subjected to a rubbing treatment in which directions of a rotation around an identical crossing line crossing the members 11 and 11 are reverse to each other along a circumference of a circle having a center on the crossing line.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: January 29, 2008
    Assignee: Kochi University of Technology
    Inventors: Shigeomi Chono, Tomohiro Tsuji
  • Publication number: 20020031260
    Abstract: Concerning feature extraction of documents in text mining, a method and an apparatus for extracting features having the same nature as those by LSA are provided that require smaller memory space and simpler program and apparatus than the apparatus for executing LSA. Features of each document are extracted by feature extracting acts on the basis of a term-document matrix updated by term-document updating acts and of a basis vector, spanning a space of effective features, calculated by basis vector calculations. Execution of respective acts is repeated until a predetermined requirement given by a user is satisfied.
    Type: Application
    Filed: May 31, 2001
    Publication date: March 14, 2002
    Applicant: SSR Co., Ltd. and Kochi University of Technology
    Inventors: Ruck Thawonmas, Akio Sakamoto, Shinji Mizobuchi, Masutatsu Yoshioka