Patents Assigned to Saga University
  • Patent number: 8101824
    Abstract: The present invention provides a method of transforming common ice plant by gene transfer using a microorganism belonging to the genus Agrobacterium and a method of producing a transformed common ice plant. The present invention also provides a stable transformed common ice plant.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: January 24, 2012
    Assignee: Saga University
    Inventors: Sakae Agarie, Akihiro Nose, Toyoaki Anai, Haruki Sunagawa, Makiko Umemoto
  • Publication number: 20110308355
    Abstract: A noble metal adsorption agent includes algae or residue of algae having an amino group as a functional group. A noble metal is retrieved by a method including: adsorbing the noble metal on the noble metal adsorption agent; and retrieving the noble metal. The noble metal is solved in a liquid. Thus, by using the noble metal adsorption agent, the noble metal is selectively retrieved.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicants: Saga University, DENSO CORPORATION
    Inventors: Hisaya Kato, Toshiyuki Morishita, Kinya Atsumi, Minoru Kurata, Katsutoshi Inoue, Hidetaka Kawakita, Keisuke Ohto
  • Patent number: 8012415
    Abstract: An object to be sterilized is disposed inside a vacuum chamber, and the inside of the vacuum chamber is evacuated. When the pressure inside the vacuum chamber reaches 3 Pa, a cutoff valve disposed between the vacuum chamber and the vacuum pump is closed. High-frequency power is supplied to an electrode. Oxygen gas is introduced into the vacuum chamber for 0.1 sec. Thereafter, the pressure is held constant for 3 sec. Until the pressure inside the vacuum chamber reaches 10 kPa, introduction of oxygen gas into the vacuum chamber is repeated. When the pressure reaches 10 kPa, the cutoff valve is opened to evacuate the inside of the vacuum chamber and the supply of the high-frequency power is stopped. Introducing the oxygen gas and determining pressure inside the vacuum chamber is repeated, and after 90 min, the pressure inside the vacuum chamber is returned to atmospheric pressure.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: September 6, 2011
    Assignees: Elk Corporation, Saga University
    Inventors: Yasushi Hanada, Nobuya Hayashi
  • Patent number: 7955394
    Abstract: The artificial knee joint includes a femoral component, a tibial tray and an insert plate fixed onto the top surface of the tibial tray. The femoral component includes a femoral articular surface and a cam that is provided on the rear end of the femoral articular surface and protrudes from the femoral articular surface, the insert plate includes a tibial articular surface that makes contact with the femoral articular surface and a cam-receiving slide surface that makes contact with the cam. When the knee is extended, the joint takes a first sliding state in which the femoral articular surface slides against the tibial articular surface. When the knee is bent at an angle in a range from 90 to 160 degrees, the joint shifts from the first sliding state to a second sliding state in which the cam slides on the cam-receiving slide surface.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: June 7, 2011
    Assignees: Saga University, Japan Medical Materials Corporation
    Inventors: Takao Hotokebuchi, Yasuju Takano
  • Publication number: 20100209292
    Abstract: Provided are a plasma sterilizing device and a method for generating a plasma in an elongated thin tube constituting a sterilizing object, and performing the sterilizing treatment of the interior of the elongated thin tube. The plasma sterilizing device and a method can sterilize even an elongated thin tube of an internal diameter of 5 mm or less efficiently, can prevent the inner wall of the elongated thin tube from being damaged, can suppress the danger of a secondary infection, and can suppress the contamination of the elongated thin tube by the sputtering of an electrode. The plasma sterilizing device comprises a container (2) capable of housing an elongated thin tube (1) or a sterilizing object and adjusting the internal pressure, and an electrode (5) arranged in at least one end portion of the elongated thin tube.
    Type: Application
    Filed: August 4, 2008
    Publication date: August 19, 2010
    Applicant: Saga University
    Inventors: Nobuya Hayashi, Satoshi Kitazaki
  • Publication number: 20090317295
    Abstract: It is intended to provide a sterilizer, which aim is at efficiently sterilizing a subject such as a container by using active oxygen generated with the use of plasma, and a sterilization method using the same. In particular, it is intended to develop a technique for stably generating active oxygen with the use of plasma and thus provide a sterilizer, which enables, if necessary, stable plasma formation and active oxygen generation in the atmosphere and can inhibit thermal damages caused by the plasma on a subject to be sterilized, and a sterilization method using the same.
    Type: Application
    Filed: March 7, 2007
    Publication date: December 24, 2009
    Applicants: Saga University, University of the Ryukyus, The Coca-Cola Company
    Inventors: Akira Yonesu, Nobuya Hayashi, Yoshihisa Tachibana
  • Publication number: 20090217410
    Abstract: The present invention provides a method of transforming common ice plant by gene transfer using a microorganism belonging to the genus Agrobacterium and a method of producing a transformed common ice plant. The present invention also provides a stable transformed common ice plant.
    Type: Application
    Filed: April 15, 2005
    Publication date: August 27, 2009
    Applicant: Saga University
    Inventors: Sakae Agarie, Akihiro Nose, Toyoaki Anai, Haruki Sunagawa, Makiko Umemoto
  • Publication number: 20090209094
    Abstract: [PROBLEMS] To provide a semiconductor element manufacturing method by which a semiconductor element having high accuracy and high function can be manufactured by controlling diffusion depth and diffusion concentration in a pn junction region with high accuracy. [MEANS FOR SOLVING PROBLEMS] A diffusion control layer (2) composed of a thin film of a substance having a smaller diffusion coefficient than that of a diffusion source (3) is formed between a surface of a substrate (1) and the diffusion source (3), and an element of the diffusion source (3) is permitted to thermally diffuse through the diffusion control layer (2). Thus, the diffusion depth and the diffusion concentration in the semiconductor region, which is formed on the surface portion of the substrate and has a conductivity type different from that of the substrate, can be highly accurately controlled, and the semiconductor element having high accuracy and high function can be manufactured.
    Type: Application
    Filed: January 5, 2005
    Publication date: August 20, 2009
    Applicant: Saga University
    Inventors: Thoru Tanaka, Niroshi Ogawa, Mitsuhiro Nishio
  • Patent number: 7538628
    Abstract: A harmonic oscillator comprises a transmission line resonator in which an oscillation frequency depends on an electrical length of a transmission line and both ends of the transmission line are electrical open ends; an active element for oscillation as a negative resistance connecting to the transmission line resonator; an output line connected to a midpoint portion of the transmission line resonator; and electrical and/or physical suppressing means for suppressing a voltage displacement distribution of second harmonic among the even-order harmonics. The suppressing means is provided at a position which is at least a minimum voltage displacement portion for the second harmonic between the midpoint portion and either ends of the transmission line resonator.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: May 26, 2009
    Assignees: Nihon Dempa Kogyo Co., Ltd., Saga University
    Inventors: Masayoshi Aikawa, Takayuki Tanaka, Fumio Asamura, Kenji Kawahata, Katsuaki Sakamoto
  • Publication number: 20090030467
    Abstract: A bone plate having a rear face and opposing front face, adapted to be abutted on a bone, and a through hole extending between the front and rear faces, and attached to a bone to be set by applying the bone plate to the bone, and by screwing a screw into the bone through the through hole. The bone plate has a blind first dimple provided in at least one of the faces thereof other than the rear face. One acute gripping tip of a pair of bone forceps may be abutted on the bone, with the other acute griping tip of the bone forceps being engaged in the first dimple. The first dimple is configured so as to converge from an opening portion thereof on the dimple-provided face toward a bottom portion thereof, whereby the other acute gripping tip of the bone forceps can slide toward the bottom portion.
    Type: Application
    Filed: March 17, 2006
    Publication date: January 29, 2009
    Applicant: Saga University
    Inventors: Motoki Sonohata, Takao Hotokebuchi, Masaru Kitajima
  • Patent number: 7187337
    Abstract: A slot-line planar antenna has a substrate, an outer conductor disposed on one principal surface of the substrate and having an opening defined therein, an inner conductor disposed on the one principal surface of the substrate and positioned within the opening, the outer conductor and the inner conductor jointly defining a looped aperture line therebetween, and an electronic device electrically interconnecting the outer conductor and the inner conductor for controlling an electromagnetic wave field of a slot line provided by the aperture line.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: March 6, 2007
    Assignees: Nihon Dempa Kogyo Co., Ltd, Saga University
    Inventors: Masayoshi Aikawa, Eisuke Nishiyama, Fumio Asamura, Takeo Oita
  • Patent number: 7145405
    Abstract: A planar harmonic high frequency oscillator comprises a pair of amplifiers for oscillation, a micro-strip line for connecting between inputs of the pair of amplifiers and between outputs of the amplifiers, a slot line disposed between the inputs and the outputs of the pair of the amplifiers for electromagnetically coupling with the micro-strip line, an output line connected to the micro-strip line at a position at which the micro-strip line traverses the slot line between the inputs or outputs of the pair of amplifiers, and an electronic device for connecting conductors on both sides of the slot line, and for controlling an electromagnetic wave field of the slot line in response to a control signal applied thereto. Two oscillation systems which oscillate in opposite phases with respect to the fundamental wave of oscillation are formed to generate an even-order harmonic of the fundamental wave.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: December 5, 2006
    Assignees: Nihon Dempa Kogyo Co., Ltd., Saga University
    Inventors: Masayoshi Aikawa, Takayuki Tanaka, Fumio Asamura, Takeo Oita
  • Patent number: 7145404
    Abstract: A push-push high frequency oscillator comprises a pair of amplifiers for oscillation, a loop-shaped microstrip line for connecting inputs of the pair of amplifiers to each other and connecting outputs of the pair of amplifiers to each other, a slot line disposed between the inputs and the outputs of the pair of amplifiers for electromagnetically coupling with the microstrip line, a nonlinear circuit for enhancing the level of harmonic components in an applied synchronization signal, a coupler circuit for electromagnetically coupling the output of the nonlinear circuit to the microstrip line, and a filter circuit disposed at the output of the nonlinear circuit. The filter circuit filters harmonic components of the synchronization signal such that the two oscillation systems are injected with the same frequency components as the fundamental wave or frequency components twice as high as the fundamental wave to increase frequency stability.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: December 5, 2006
    Assignees: Nihon Dempa Kogyo Co., Ltd., Saga University
    Inventors: Masayoshi Aikawa, Takayuki Tanaka, Fumio Asamura, Takeo Oita
  • Patent number: 7119625
    Abstract: A high frequency oscillator comprises a transmission line resonator having a midpoint which serves as a null potential point, a pair of active devices for oscillation respectively connected to a pair of mutually opposite-phase resonance wave points for the transmission line resonator, and a plurality of output lines each having one end connected to the transmission line resonator at a point symmetric to the midpoint, and the other end commonly connected to a connection. The pair of active devices share the resonator and oscillate in opposite phases to each other. The plurality of output lines are coupled to the transmission line resonator respectively at maximum displacement distribution points for a standing wave of an 2n-th harmonic in the transmission line resonator, where n is an integer equal to or larger than two. Even-order harmonic components of 2(n?1)-th or lower are suppressed at the connection.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: October 10, 2006
    Assignees: Nihon Dempa Kogyo Co., Ltd., Saga University
    Inventors: Masayoshi Aikawa, Takayuki Tanaka, Fumio Asamura, Takeo Oita
  • Publication number: 20060188504
    Abstract: The present invention relates to use of interleukin-13 as a cardiovascular disease marker. The therapeutic composition and diagnostic composition of the invention for cardiovascular diseases are characterized by comprising an antibody to an interleukin-13 receptor and/or an antibody to interleukin-13.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 24, 2006
    Applicant: Saga University
    Inventors: Koichi Node, Kenji Izuhara, Tetsuaki Hirase, Yuki Nishimura
  • Patent number: 7095373
    Abstract: A planar array antenna using a multi-layer substrate having an intermediate layer conductor in a laminated face comprises: four pieces of planar antenna elements disposed at each of geometrically square shaped apexes; first and second slot lines formed in the intermediate layer conductor, and intersecting each other; first to fourth microstrip lines formed along each side of geometrical squares so as to be coupled to each antenna element, and at the same time, electromagnetically coupled to first and second slot lines at both ends of these slot lines; and fifth and sixth microstrip lines, the top end sides thereof traversing the first and second slot lines, respectively, so as to be electromagnetically coupled to the first and second slot lines.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: August 22, 2006
    Assignees: Saga University, Nihon Dempa Kogyo Co., Ltd.
    Inventors: Masayoshi Aikawa, Eisuke Nishiyama, Fumio Asamura, Takeo Oita
  • Patent number: 7043194
    Abstract: A learning system including a server and a user terminal is provided for providing a lecture to a user and for evaluating the user. The present systems has the server and the user terminal, the server has a storage unit for storing at least one educational material and a transmitting unit for transmitting said educational material to the user terminal, the user terminal has a receiving unit for receiving said educational material from the server; display unit for presenting the received educational material to a user; a recognizing unit for recognizing movement of the user; and a transmitting unit for transmitting said recognized movement, wherein the server further has a receiving unit for receiving the movement from the user terminal; and an evaluating part for evaluating learning behavior of the user based on the movement.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: May 9, 2006
    Assignee: Saga University
    Inventors: Shigeru Hoyashita, Yasuyuki Ikegami, Kazuhiro Sumi
  • Patent number: 6992635
    Abstract: A planar array antenna comprises a powered antenna element and an adjacent passive element which are microstrip-line type ones and disposed on one principal surface of a dielectric substrate; and a feeding system for feeding high frequency power to the powered antenna element. The powered antenna element and a passive element disposed ahead of the powered antenna element constitute a powered element pair, and the adjacent passive element and a passive antenna element disposed ahead of the adjacent passive element constitute a passive element pair. The passive element pair is disposed so that it adjoins said powered element pair in an electric field direction or a magnetic field direction of radio wave emitted from the powered antenna element.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: January 31, 2006
    Assignees: Nihon Dempa Kogyo Co., Ltd., Saga University
    Inventors: Eisuke Nishiyama, Masayoshi Aikawa, Fumio Asamura, Takeo Oita
  • Patent number: 6920362
    Abstract: A control apparatus which controls a controlled system with a transfer function regarded as a secondary delay, comprises an outer loop which performs negative feedback of an output of the controlled system in order to obtain a deviation between the output and a desired value, an inner loop which performs negative feedback of a signal obtained by multiplying a differential value of the output of the controlled system by a first gain to the deviation, and a nonlinear inner feedback loop which uses the differential value of the output of the controlled system and a product obtained by multiplying an absolute value of the deviation e or n-th (n is an integer) power of the absolute value by the second gain to perform positive feedback to the deviation.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: July 19, 2005
    Assignee: President of Saga University
    Inventor: Toshio Matsumoto
  • Patent number: 6865368
    Abstract: A system for producing an educational material for students. The system has a storing part for storing raw educational materials into a database, an input part for inputting both student-related data and educational environment-related data, and an educational material producing unit for selecting at least one raw educational material from said the database based on predetermined selecting criteria and the inputted student-related data and educational environment-related data to produce educational material from the selected at least one raw educational material.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: March 8, 2005
    Assignee: Saga University
    Inventors: Shigeru Hoyashita, Yasuyuki Ikegami, Kazuhiro Sumi