Patents by Inventor Takayuki Nakamura

Takayuki Nakamura 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: 9500778
    Abstract: An optical element having an antireflection effect includes an incident plane and an emission plane and a conical microstructure formed on at least one plane of the incident plane and the emission plane. The conical microstructure includes a first structure formed of a plurality of conical microprojections with an average height H1 and a second structure formed of a plurality of conical microrecesses with an average height H2. The average height H1 satisfies an inequality H1?1/3*?/n and the average height H2 satisfies an inequality H2?1/3*?/n. An average pitch P between the first structure and the second structure satisfies following conditions: H1/2?P?1/3*?/n, and H2/2?P?1/3*?/n, in which the use wavelength is defined as ? and the refractive index relative to the use wavelength is n.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: November 22, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Chieko Hatashita, Takayuki Nakamura, Kentaroh Hagita, Toshiya Yamaguchi
  • Patent number: 9499525
    Abstract: An object of the present invention is to provide a compound that can be used as a more superior therapeutic agent for central nervous system diseases. The present invention provides a dihydrate of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one or of a salt thereof, and a process for producing the same.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: November 22, 2016
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Hiroshi Yamashita, Tetsuya Sato, Takuya Minowa, Yusuke Hoshika, Hidekazu Toyofuku, Tatsuya Yamaguchi, Masahiro Sota, Shuuji Kawano, Takayuki Nakamura, Ryohei Eto, Takuma Ikebuchi, Kei Moriyama, Nobuaki Ito
  • Patent number: 9440462
    Abstract: The present invention provides an image forming device having: a conveying mechanism that pulls and conveys a recording medium onto which liquid drops have been applied; and a suction plate that is provided with a plurality of suction holes that suck the recording medium conveyed by the conveying mechanism, and at which, when the suction holes are projected in a conveying direction of the recording medium, the suction holes are disposed such that any one of the suction holes exists in a direction orthogonal to the conveying direction of the recording medium, and the suction holes are disposed so as to overlap one another.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: September 13, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Takayuki Nakamura
  • Publication number: 20160167411
    Abstract: A sheet stacking device (77) is provided with a sheet discharge platform (76) on which image forming sheets (P), which have been subjected to heating and drying processing after images are formed using ink, are stacked; and a nozzle (162) that blows air to a side surface of a sheet bundle in a horizontal direction. Air is blown to the sheet bundle stacked on the sheet discharge platform (76) while the height of the sheet discharge platform (76) is adjusted by a sheet discharge platform raising and lowering device (100) so that a gap is formed between the sheets in the vertically middle portion of the sheet bundle. According to the sheet stacking device (77), a plurality of image forming sheets (P) can be efficiently cooled on the sheet discharge platform. Accordingly, the occurrence of blocking can be suppressed.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventors: Yuhei CHIWATA, Takayuki NAKAMURA, Koji FURUKAWA, Shintaro ANZAI
  • Patent number: 9297963
    Abstract: An optical connector ferrule having a front end, a rear end, an upper surface, and a lower surface includes a window opening on the upper surface, a plurality of fiber holes passing through a portion between the front end and the window along a first direction and including small diameter portions on the front end side and large diameter portions on the window side, and fiber grooves extending from the large diameter portions along the first direction and having openings in a third direction, in which the plurality of fiber holes include a first fiber hole row arranged in a second direction on a lower surface side, and a second fiber hole row arranged in the second direction on the upper surface side, and the large diameter portion in the second fiber hole row is longer than the large diameter portion in the first fiber hole row.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: March 29, 2016
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Masaki Ohmura, Takayuki Nakamura, Takao Fujiki, Tomomi Sano
  • Patent number: 9285298
    Abstract: A method of analyzing microparticle compositions and a microparticle composition analyzing device are capable of quantitatively analyzing the mass concentration of air microparticles online for each chemical composition. The particle ray of microparticles in an air sample is converged, and is irradiated onto a narrow domain of a capture body which includes a mesh-shaped structure for capturing the microparticles in the particle ray while removing surplus gas phase components, and the microparticles are captured. Then, the narrow region is subjected to concentrated irradiation of energy rays, and the microparticles that are captured by the capture body are vaporized, sublimated or reacted to yield a desorbed component, which is analyzed.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: March 15, 2016
    Assignees: THE UNIVERSITY OF TOKYO, FUJI ELECTRIC CO., LTD.
    Inventors: Nobuyuki Takegawa, Takayuki Nakamura, Yuuki Sameshima, Masahiko Takei, Noritomo Hirayama
  • Publication number: 20150378301
    Abstract: The present invention provides an image forming device comprising: a conveying member that conveys recording media; a first sensor that is provided at a first detection position, and that detects absence or presence of a recording medium; a second sensor that is provided at a second detection position; a plurality of sensor dogs that are provided at a rotating/supporting member that drives the conveying member; a timing sensor that detects passage of the sensor dogs and determines detection timings of the first sensor and the second sensor; and a judging device that judges that there is a jam when a recording medium is continuously detected at the first sensor or the second sensor, and that judges that there is a jam when there is inconsistency in information relating to the absence or presence of a recording medium from the first sensor and the second sensor.
    Type: Application
    Filed: September 7, 2015
    Publication date: December 31, 2015
    Inventor: Takayuki NAKAMURA
  • Publication number: 20150360483
    Abstract: The present invention provides an image forming device having: a conveying mechanism that pulls and conveys a recording medium onto which liquid drops have been applied; and a suction plate that is provided with a plurality of suction holes that suck the recording medium conveyed by the conveying mechanism, and at which, when the suction holes are projected in a conveying direction of the recording medium, the suction holes are disposed such that any one of the suction holes exists in a direction orthogonal to the conveying direction of the recording medium, and the suction holes are disposed so as to overlap one another.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Inventor: Takayuki NAKAMURA
  • Patent number: 9182688
    Abstract: An image forming apparatus, including: an electrostatic latent image bearing member; an electrostatic latent image forming unit configured to form an electrostatic latent image on the electrostatic latent image bearing member; and a developing unit containing a toner and configured to develop the electrostatic latent image with the toner to thereby form a visible image, wherein the developing unit is a contact type one-component developing unit which includes a toner bearing member being in contact with the electrostatic latent image bearing member, wherein a contact pressure between the electrostatic latent image bearing member and the toner bearing member is 2.0×104 N/m2 to 7.5×104 N/m2, wherein the toner contains a binder resin and a releasing agent, and wherein an extracted amount of the releasing agent extracted with hexane from the toner is 10 mg/g to 25 mg/g.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 10, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Takuya Kadota, Yoshihiro Mikuriya, Tsuyoshi Nozaki, Yoshimichi Ishikawa, Kazuoki Fuwa, Tomohiro Fukao, Yuta Takeuchi, Tomoharu Miki, Takayuki Nakamura, Naoki Nakatake, Yasuhide Matsuno
  • Patent number: 9152066
    Abstract: A toner, including: a binder resin; releasing agent-encapsulating capsules; and a colorant, wherein the releasing agent-encapsulating capsules each include: a capsule formed of a resin (I) which is different from the binder resin; and a releasing agent (RA) which is encapsulated in the capsule, and the releasing agent-encapsulating capsules exist in the binder resin, and wherein 50% to 100% of the releasing agent-encapsulating capsules exist in a region from a surface of the toner to a depth of 0.10 times a volume-average particle diameter of the toner.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 6, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Ryota Inoue, Hiroaki Katoh, Masahiro Seki, Shun Saito, Yoshitaka Sekiguchi, Yoshihiro Mikuriya, Kazuoki Fuwa, Satoshi Ogawa, Tomohiro Fukao, Takayuki Nakamura
  • Patent number: 9138130
    Abstract: An assist assembly for propulsion of a tip device of an endoscope in a body cavity includes an attachment sleeve and a support sleeve. A deformable circulation device is disposed to extend over inner and outer surfaces of the support sleeve, for endlessly moving in an axial direction of the tip device. Plural rollers are disposed on the support sleeve in a rotatable manner, for pressing an inner surface of the circulation device. An alignment projection is formed on the inner surface of the circulation device to project at a height L1. A location offset prevention groove is formed in the rollers at a depth L2, for receiving the alignment projection, and satisfying a condition L1?L2, to prevent location offset of the circulation device from the rollers. Drive wheels tension the circulation device in cooperation with the rollers by deforming the alignment projection in the location offset prevention groove.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: September 22, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Takayuki Nakamura, Tsuyoshi Ashida, Yasunori Ohta, Shinichi Yamakawa, Charles Alan Brantingham
  • Publication number: 20150247983
    Abstract: An optical connector ferrule having a front end, a rear end, an upper surface, and a lower surface includes a window opening on the upper surface, a plurality of fiber holes passing through a portion between the front end and the window along a first direction and including small diameter portions on the front end side and large diameter portions on the window side, and fiber grooves extending from the large diameter portions along the first direction and having openings in a third direction, in which the width of the opening is smaller than the diameter of the large diameter portion, and the depth of the fiber groove is smaller than the radius of the large diameter portion.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 3, 2015
    Inventors: Masaki OHMURA, Takayuki NAKAMURA, Tomomi SANO
  • Publication number: 20150247982
    Abstract: An optical connector ferrule having a front end, a rear end, an upper surface, and a lower surface includes a window opening on the upper surface, a plurality of fiber holes passing through a portion between the front end and the window along a first direction and including small diameter portions on the front end side and large diameter portions on the window side, and fiber grooves extending from the large diameter portions along the first direction and having openings in a third direction, in which the plurality of fiber holes include a first fiber hole row arranged in a second direction on a lower surface side, and a second fiber hole row arranged in the second direction on the upper surface side, and the large diameter portion in the second fiber hole row is longer than the large diameter portion in the first fiber hole row.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 3, 2015
    Inventors: Masaki OHMURA, Takayuki NAKAMURA, Takao FUJIKI, Tomomi SANO
  • Patent number: 9107576
    Abstract: An insertion assisting device includes a rotary body formed in a toroidal shape, and a support and drive unit that rotatably supports and rotates the rotary body. The support and drive unit has two supports, a first support and a second support. The first support is formed in a substantially cylindrical shape, and rotatably supports the rotary body. The second support is formed in a substantially triangular tubular shape, is arranged inside the first support, and supports driving gears that transmit a driving force to the rotary body. The second support is shorter than the first support, and is arranged so that front and rear end portions thereof are located inside front and rear end portions of the first support.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: August 18, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Takayuki Nakamura, Tsuyoshi Ashida, Yasunori Ohta, Shinichi Yamakawa, Rick Cornelius, Charles Alan Brantingham
  • Publication number: 20150205286
    Abstract: An NC program generating apparatus includes a standby state analyzing unit 12 analyzing an NC program to determine whether a block in which an operation unit is brought into a standby state is present, and when such a block is present, determining whether a power source 39, 45, 46 corresponding to the operation unit can be stopped at the time of execution of the block to specify a stoppable block, and a power operation code inserting unit 13 inserting an operation code for stopping the corresponding power source 39, 45, 46 at the time of execution of the stoppable block into the NC program and inserting an operation code for restarting the power source 39, 45, 46 after the execution of the block into the NC program.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 23, 2015
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Susumu Mitsuhashi, Makoto Fujishima, Takayuki Nakamura, Hiroshi Shimanoe
  • Patent number: 9039603
    Abstract: A propulsion apparatus for an endoscope includes a propulsion assembly for mounting on a tip device of the endoscope, for propulsion in a body cavity. First and second wire devices are disposed to extend from the tip device in a proximal direction, having a coil winding, for rotating to drive the propulsion assembly. First and second motors are connected with proximal ends of respectively the first and second wire devices, for rotating the first and second wire devices. A timer is actuated if a speed difference between rotational speeds of the first and second motors becomes equal to or more than a reference speed value, for measuring an elapsed time. A break detector detects breakage of the first wire device if the elapsed time becomes equal to or longer than a predetermined time. A controller controls the first and second motors in response to an output of the break detector.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: May 26, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tsuyoshi Ashida, Takayuki Nakamura, Nobuyuki Torisawa, Takumi Dejima, Naoyuki Morita
  • Patent number: 9039602
    Abstract: A propelling device includes a traveling body that rotates in a state of being brought into contact with an inner wall of an alimentary canal, an external cylinder around which the traveling body is wound, and a mounting cylinder on which a tip end portion of an endoscope is mounted. Three driven rollers are rotatably attached to the external cylinder. The traveling body is pinched between the driven rollers and driving gears. As the driving gears rotate, the traveling body travels in a circulating manner. A rotating shaft of the driven roller located at the center among the three driven rollers is held by a shaft hole that is made long in a gear arrangement direction in which the driving gears are disposed side by side.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 26, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Shinichi Yamakawa, Tsuyoshi Ashida, Takayuki Nakamura, Yasunori Ohta, Charles Alan Brantingham
  • Patent number: 9036261
    Abstract: An optical element using visible light from wavelengths ?S to ?L (?L>?S), is formed of a translucent material having refractive indexes nS and nL, respectively, for light having the wavelengths ?S and ?L. The optical element includes an incident face; an exit face; and a micro convexo-concave structure used as an anti-reflection structure (ARS), being formed at least one of the incident face and the exit face. An average distance P between adjacent micro convexo-concave structures satisfies condition (1) P?0.8·?S/nS. Dimensionless parameters mS and mL satisfy condition (2) 0.8?mS?1.1 and condition (3) 0.8?mL?1.1. The parameters mS and mL, an average height H, the wavelengths ?S and ?L, and the refractive indexes nS and nL of the micro convexo-concave structure satisfy condition (4) mS·?S/(2·nS)?H?mL·?L/(2·nL).
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: May 19, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Chieko Hatashita, Takayuki Nakamura, Hiroshi Nakanuma, Kentaroh Hagita
  • Publication number: 20150087655
    Abstract: An object of the present invention is to provide a compound that can be used as a more superior therapeutic agent for central nervous system diseases. The present invention provides a dihydrate of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one or of a salt thereof, and a process for producing the same.
    Type: Application
    Filed: April 23, 2013
    Publication date: March 26, 2015
    Inventors: Hiroshi Yamashita, Tetsuya Sato, Takuya Minowa, Yusuke Hoshika, Hidekazu Toyofuku, Tatsuya Yamaguchi, Masahiro Sota, Shuuji Kawano, Takayuki Nakamura, Ryohei Eto, Takuma Ikebuchi, Kei Moriyama, Nobuaki Ito
  • Patent number: D760134
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: June 28, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Julien Montousse, Takayuki Nakamura