Patents by Inventor Rei Yamamoto

Rei Yamamoto 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).

  • Publication number: 20220177253
    Abstract: The paper sheet processing device includes a bladed wheel 10, a paper sheet supply/transport unit 30, 100, a stacking tray 50 that holds paper sheets emitted from the bladed wheel one by one in a stacked state, and an extraction area 80. The stacking tray includes a first stacking part 51 that stacks thereon paper sheets being emitted when at a paper sheet stacking position P1, and is rotationally moved to a non-stacking position P2 when a predetermined number of paper sheets are stacked thereon, and a second stacking part 61 that is moved to the paper sheet stacking position to stack paper sheets thereon when being rotated by a predetermined angle from the non-stacking position, and is rotationally moved to the non-stacking position when the predetermined number of paper sheets are stacked thereon.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 9, 2022
    Applicant: JAPAN CASH MACHINE CO., LTD.
    Inventors: Yoshihito OSADA, Kazuya FURUMACHI, Yousuke MIYASHITA, Makoto IWASAKI, Nobuhiro IDA, Hirotaka YAMAZAKI, Rei YAMAMOTO, Takeaki TANAKA
  • Publication number: 20190241784
    Abstract: The present invention provides a composite member comprising a porous body having a first exterior surface, a second exterior surface, and a communication hole communicating with the first exterior surface and the second exterior surface; and an organic material comprising at least one selected from the group consisting of chain saturated hydrocarbon compounds and sugar alcohols, the organic material filling the communication hole, wherein the porous body is formed of a material having a thermal conductivity higher than a thermal conductivity of the organic material.
    Type: Application
    Filed: September 2, 2016
    Publication date: August 8, 2019
    Inventors: Tsuyoshi MORIMOTO, Akira NAGAI, Rei YAMAMOTO
  • Patent number: 10125237
    Abstract: A heat radiation sheet having high heat-radiation property and excellent handleability and having sheet properties permitting the sheet to cope with changes in use temperature thereof. Also provided is a heat radiation device using the sheet. The heat radiation sheet comprises: a binder component comprising: (A) a thermoplastic rubber component; (B) a thermosetting rubber component; and (C) a thermosetting rubber curing agent crosslinkable with the thermosetting rubber component (B); and an anisotropic graphite powder oriented into a specified direction in the binder component.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: November 13, 2018
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Noriji Tashiro, Michiaki Yajima, Tomonori Seki, Atsushi Fujita, Tooru Yoshikawa, Rei Yamamoto
  • Patent number: 9574833
    Abstract: The thermal conductive sheet of the present invention includes a base sheet and, on one surface of the base sheet, a metal foil (C) that has a thickness of from 1 to 30% of a thickness of the base sheet. The base sheet includes a binder component (A) that exhibits elasticity at room temperature and a graphite powder (B) that has anisotropy, and the graphite powder (B) is oriented in a thickness direction.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: February 21, 2017
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Michiaki Yajima, Rei Yamamoto, Tooru Yoshikawa, Tomonori Seki
  • Publication number: 20130112389
    Abstract: The thermal conductive sheet of the present invention includes a base sheet and, on one surface of the base sheet, a metal foil (C) that has a thickness of from 1 to 30% of a thickness of the base sheet. The base sheet includes a binder component (A) that exhibits elasticity at room temperature and a graphite powder (B) that has anisotropy, and the graphite powder (B) is oriented in a thickness direction.
    Type: Application
    Filed: April 25, 2011
    Publication date: May 9, 2013
    Inventors: Michiaki Yajima, Rei Yamamoto, Tooru Yoshikawa, Tomonori Seki
  • Patent number: 8260095
    Abstract: An optical device to be connected to an optical fiber and an optical system in which the optical fiber is fixed to the optical device are provided, which optical device and optical system can restrict variations in a distance between inclined surfaces for supporting the optical fiber, and can enhance a productivity of the optical device and system. The optical system according to the present invention is, for example an optical multiplexer/demultiplexer having an optical device according to the present invention, which device has a substrate (2) with a crystal axis, and a groove (10a) for supporting an optical fiber (6a). The groove (10a) has a pair of opposing inclined surfaces (24) for supporting the optical fiber (6a), and a recess (26) formed between the pair of opposing inclined surfaces (24).
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: September 4, 2012
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Rei Yamamoto, Toshihiro Kuroda
  • Publication number: 20110237001
    Abstract: A technique for evaluating a semiconductor chip is provided. The semiconductor chip is mounted on a mount substrate, the semiconductor chip laminating on one surface of a silicone substrate, at least any of a metal wiring film 101 serving as a resistance temperature detector made up of multiple regions and a metal wiring film 102 serving as a heater made up of one or more regions, and an electrode 103 for connecting the metal wiring film 101 and the metal wiring film 102 with the mount substrate. Then, the metal wiring film 101 is electrically connected with an ammeter and a voltmeter, and the metal wiring film 102 is electrically connected with a power source, thereby providing an evaluation system which is capable of evaluating temperature measurement, heating, and temperature profile in each of the regions on the semiconductor chip.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 29, 2011
    Inventors: Takehiko HASEBE, Masako Kato, Yoshihide Yamaguchi, Masashi Nishiki, Naoki Matsushima, Teiichi Inada, Rei Yamamoto, Hiroyuki Temmei, Ukyo Ikeda
  • Publication number: 20110061852
    Abstract: A heat radiation sheet having high heat-radiation property and excellent handleability and having sheet properties permitting the sheet to cope with changes in use temperature thereof. Also provided is a heat radiation device using the sheet. The heat radiation sheet comprises: a binder component comprising: (A) a thermoplastic rubber component; (B) a thermosetting rubber component; and (C) a thermosetting rubber curing agent crosslinkable with the thermosetting rubber component (B); and an anisotropic graphite powder oriented into a specified direction in the binder component.
    Type: Application
    Filed: May 22, 2009
    Publication date: March 17, 2011
    Inventors: Noriji Tashiro, Michiaki Yajima, Tomonori Seki, Atsushi Fujita, Tooru Yoshika wa, Rei Yamamoto
  • Patent number: 7840108
    Abstract: Provided is a light branching optical waveguide including: at least one incident light waveguide (A) optically connected to one end of a multi-mode optical waveguide; and output light waveguides (B) larger in number than the incident light waveguide (A) optically connected to the other end thereof, the light branching optical waveguide being characterized in that: an intensity distribution of light incident from at least one optical waveguide (a) out of the incident light waveguide (A) on the multi-mode optical waveguide at a connecting surface of the incident light waveguide (A) and the multi-mode optical waveguide is asymmetric with respect to a geometrical central axis of the optical waveguide (a); and an extended line of the geometrical center axis of the optical waveguide (a) does not coincide with a geometrical central axis of the multi-mode optical waveguide.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: November 23, 2010
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Nobuo Miyadera, Rei Yamamoto
  • Patent number: 7817889
    Abstract: An optical waveguide structure comprises a substrate (12) having first and second groove arrays (8, 10), including grooves (8a-8g, 10a-10h), and an optical waveguide (14), having cladding and core (14b) layered on the substrate between the groove arrays to vertically align the core with cores (2a, 4a) of optical fibers (2, 4) positioned on the grooves. The waveguide has at least one first port (20) aligned with a groove (8d) of the first groove array and at least one second port (22) aligned with a groove (10e) of the second groove array. The number of second ports is equal to or greater than that of the first ports. A ratio of the number of grooves of the second groove array relative to the number of grooves of the first groove array is less than a ratio of the number of the second ports relative to the number of first ports.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 19, 2010
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Nobuo Miyadera, Rei Yamamoto, Shigeyuki Yagi
  • Publication number: 20100172608
    Abstract: An optical device to be connected to an optical fiber and an optical system in which the optical fiber is fixed to the optical device are provided, which optical device and optical system can restrict variations in a distance between inclined surfaces for supporting the optical fiber, and can enhance a productivity of the optical device and system. The optical system according to the present invention is, for example an optical multiplexer/demultiplexer having an optical device according to the present invention, which device has a substrate (2) with a crystal axis, and a groove (10a) for supporting an optical fiber (6a). The groove (10a) has a pair of opposing inclined surfaces (24) for supporting the optical fiber (6a), and a recess (26) formed between the pair of opposing inclined surfaces (24).
    Type: Application
    Filed: September 7, 2007
    Publication date: July 8, 2010
    Inventors: Rei Yamamoto, Toshihiro Kuroda
  • Patent number: 7748910
    Abstract: An optical system comprising a substrate and an optical waveguide which is formed on the substrate and to which optical fibers are optically coupled. The optical waveguide has a plurality of straight core portions which obliquely intersect each other. The substrate has positioning sections for positioning a plurality of optical fibers optically coupled to two or more of the plurality of the core portions, the positioning sections having grooves on which the respective optical fibers are supported. When the plurality of optical fibers are supported on the respective grooves, offsets between centers of the plurality of the core portions and respective centers of the plurality of the optical fibers coupled to the core portions are equal to or less than 5 ?m.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: July 6, 2010
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Rei Yamamoto, Toshihiro Kuroda
  • Patent number: 7664353
    Abstract: The present invention disclosed is an optical waveguide structure that has a first waveguide provided with the opposite ends A and B, a second waveguide with the opposite ends C and D, a third waveguide with the opposite ends E and F, and a coupling waveguide having its first beam incoming/outgoing end connected to the end B of the first waveguide and its second beam incoming/outgoing end connected to the end C of the second waveguide and the end E of the third waveguide. The optical waveguide is characterized in that the first waveguide and the coupling waveguide are longitudinally dimensioned so that light beam at its peak of light intensity can transit the point of axial mal-alignment at the end A of the first waveguide and further transit the axial zone at the second beam incoming/outgoing end of the coupling waveguide.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: February 16, 2010
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Rei Yamamoto, Nobuo Miyadera
  • Patent number: 7639904
    Abstract: An optical device is provided to prevent a dicing blade form being clogged when a wafer is cut by means thereof. Further, an optical device is provided to the present invention can prevent unnecessary expansion of a resin used in the optical device. The present invention relates an optical device having a substrate and an optical waveguide layer laminated thereon. The optical waveguide layer has a first lateral surface connected to an optical fiber or an optical fiber array and a second lateral surface not connected to the same. The substrate has a lateral surface disposed on the same side as that of the second lateral surface of the optical waveguide layer. At least a portion of the second lateral surface of the optical waveguide layer is disposed in a plane different from the lateral surface of the substrate so that an exposed area of the substrate is formed between the second lateral surface of the optical waveguide layer and the lateral surface of the substrate.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: December 29, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Toshihiro Kuroda, Rei Yamamoto, Shigeyuki Yagi
  • Patent number: 7577328
    Abstract: An optical reflector, an optical multiplexer/demultiplexer device and an optical system which can allow more flexible arrangement of an optical filter thereof, and enhance performance of wavelength division multiplexing communication thereof are provided. An optical reflector according to the present invention comprises a first and second optical fiber 14, 16, each being connected to one side of an optical propagating region such as a rod lens 12 causing optical strength distributions depending on respective wavelengths of lights to be propagated in the optical propagating region; a mirror 18 disposed on the other side of the optical propagating region; and an optical filter 20 disposed between the first and second optical fibers 14, 16 and the mirror 18.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: August 18, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Nobuo Miyadera, Rei Yamamoto
  • Patent number: 7574081
    Abstract: The present invention provides an optical system with waveguides, which comprises first, second and third optical input/output means (12, 14, 16), fourth and fifth multi-mode optical waveguides (20, 22) each capable of propagating light with plural propagation modes, and optical-filter mounting means (26) for mounting an optical filter (24) between the fourth and fifth multi-mode optical waveguides (20, 22) across a traveling direction of light in the fourth and fifth multi-mode optical waveguides (20, 22). The first optical input/output means (12) is connected to an end face of the fourth multi-mode optical waveguide (20) on a side thereof opposite to the optical-filter mounting means (26). Each of the second and third optical input/output means (14, 16) is connected to an end face of the fifth multi-mode optical waveguide (22) on a side opposite to the optical-filter mounting means (26).
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: August 11, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Nobuo Miyadera, Rei Yamamoto
  • Patent number: 7546014
    Abstract: An optical directional coupler (1) comprises first and second straight optical waveguides (2, 3) having respective cores (2a, 3a) extending longitudinally close to each other to form an optical coupler portion, and a tapered optical waveguide (4) having a core (4a) connected to the core (2a) of the first straight waveguide (2). The core (2a) of the first straight waveguide (2) has a centerline (2d). A width of the core (4a) of the tapered waveguide (4) becomes narrow toward the first straight waveguide (2) and a profile of the tapered waveguide (4) is asymmetric relative to the centerline (2d) of the core (2a) of the first straight waveguides (2).
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: June 9, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Rei Yamamoto, Nobuo Miyadera
  • Publication number: 20090067787
    Abstract: An optical system comprising a substrate and an optical waveguide which is formed on the substrate and to which optical fibers are optically coupled. The optical waveguide has a plurality of straight core portions which obliquely intersect each other. The substrate has positioning sections for positioning a plurality of optical fibers optically coupled to two or more of the plurality of the core portions, the positioning sections having grooves on which the respective optical fibers are supported. When the plurality of optical fibers are supported on the respective grooves, offsets between centers of the plurality of the core portions and respective centers of the plurality of the optical fibers coupled to the core portions are equal to or less than 5 ?m.
    Type: Application
    Filed: February 27, 2007
    Publication date: March 12, 2009
    Inventors: Rei Yamamoto, Toshihiro Kuroda
  • Patent number: 7496254
    Abstract: A curved optical waveguide comprising a core and a clad, characterized in that: the core shape of the curved optical waveguide has no reversal of a curvature on a halfway; and curvatures at both ends of the curved optical waveguide gradually approach zero. A curved optical waveguide comprising a core and a clad, characterized in that: the core shape of the curved optical waveguide has no reversal of a curvature on a halfway; a curvature at one end of the curved optical waveguide gradually approaches zero; and a radius of curvature at other end is finite. An optical waveguide comprising such a curved optical waveguide and an optical waveguide having a different core shape optically connected with the former, and an optical device using such a curved optical waveguide.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: February 24, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Nobuo Miyadera, Rei Yamamoto
  • Patent number: 7457498
    Abstract: An optical waveguide structure has a single port on one input/output side, a plurality of ports on another input/output side and an S-curve optical waveguide portion arranged on the outermost side of the waveguide structure and including a first circular arc optical waveguide portion and a second circular arc optical waveguide portion connected thereto. The waveguide portion also has a third circular arc optical waveguide portion extending from a first splitting/coupling point side in the first circular arc waveguide portion toward the plural/ports side and having a curvature inverted relative to the first circular arc optical waveguide portion. At the first splitting/coupling point, a tangential line of the first circular arc optical waveguide portion and a tangential line of the third circular arc optical waveguide portion are parallel to and spaced from each other.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 25, 2008
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Nobuo Miyadera, Rei Yamamoto