Patents by Inventor Koji Yamaguchi
Koji Yamaguchi 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).
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Patent number: 8541339Abstract: A reversible thermosensitive recording medium including: reversible thermosensitive recording layer; first sheet-shaped base; second sheet-shaped base; first resin layer; second resin layer; and electronic information recording module containing module substrate, and electronic information recording element and antenna circuit disposed on the substrate, wherein the recording layer is provided adjacent to the first sheet-shaped base; the first or second sheet-shaped base has concave portion in which the element is disposed in depth direction thereof; the module is provided between the first and second sheet-shaped bases, where the first resin layer is provided between the module and the sheet-shaped base having the concave portion and the second resin layer is provided between the module and the sheet-shaped base having no concave portion; and inner side surface of the concave portion is tapered surface where maximum opening diameter of the concave portion decreases from opening edge thereof towards bottom surType: GrantFiled: February 14, 2012Date of Patent: September 24, 2013Assignee: Ricoh Company, Ltd.Inventors: Koji Yamaguchi, Noboru Koga, Takeshi Owashi
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Publication number: 20130167578Abstract: There has been a problem of dew condensation, during a cooling operation, on a wind vane or the like provided at an air outlet because the wind speed of blown air leaking from ends in longitudinal direction of the air outlet is low, causing the entanglement of room air. Walls that form an air outlet from which air that has exchanged heat in a heat exchanger is blown are provided. End portions of each of the walls in a longitudinal direction of the air outlet have respective recesses such that a passage of the air therein is made wider than in a central portion of the wall. In the longitudinal direction of the air outlet, the recesses each have a downstream-side width that is smaller than an upstream-side width.Type: ApplicationFiled: October 4, 2011Publication date: July 4, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Ikeda, Koji Yamaguchi, Masatomo Hatta, Masahiko Takagi, Makoto Kurihara
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Publication number: 20130157847Abstract: A reversible thermosensitive recording medium including a support, a reversible thermosensitive recording layer provided on the support and an antistatic layer, wherein the antistatic layer is provided on at least one of the reversible thermosensitive recording layer and a surface of the support opposite to the surface thereof on which the reversible thermosensitive recording layer is provided, wherein the antistatic layer contains spherical fillers and a curable conductive polymer, and wherein the spherical fillers satisfy the following Expression (1): 4?average particle diameter of the spherical fillers/thickness of the antistatic layer?6??Expression (1)Type: ApplicationFiled: August 11, 2011Publication date: June 20, 2013Inventors: Tadafumi Tatewaki, Koji Yamaguchi
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Patent number: 8450240Abstract: A reversible thermosensitive recording medium including a reversible thermosensitive recording layer, a first sheet-shaped base provided adjacent to the reversible thermosensitive recording layer, an electronic information recording module containing a module substrate, and a convex-shaped electronic information recording element and an antenna circuit both disposed on the module substrate, and a first resin layer for bonding the first sheet-shaped base and the electronic information recording module, wherein the first sheet-shaped base has a concave portion on a surface opposite to a surface on which the reversible thermosensitive recording layer is formed, and the electronic information recording element is inserted into the concave portion of the first sheet-shaped base.Type: GrantFiled: June 9, 2010Date of Patent: May 28, 2013Assignee: Ricoh Company, Ltd.Inventors: Noboru Koga, Tadafumi Tatewaki, Takeshi Owashi, Koji Yamaguchi
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Patent number: 8356974Abstract: A steam turbine 20 is provided with a casing 109, a turbine rotor 25 disposed through the casing 109, and labyrinth portions 50, 55 which are disposed at the boundary between the casing 109 and the turbine rotor 25. The steam turbine 20 is further provided with a sealing steam pipe 65 for supplying sealing steam to the labyrinth portions 50, 55 and a gas supply pipe 60 for supplying the labyrinth portions 50, 55 with a cooling gas for cooling the turbine rotor 25 or a heating gas for heating the turbine rotor 25.Type: GrantFiled: July 8, 2009Date of Patent: January 22, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Asako Inomata, Katsuya Yamashita, Koji Yamaguchi
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Publication number: 20120321939Abstract: Provided is a flat battery with a molded gasket extending from the opening edge of the seal can to the flat portion, where the gasket may be prevented from exfoliating from the inner surface of the seal can. A flat battery (1) includes: a negative electrode can (10) (exterior can) shaped as a cylinder with a bottom; a positive electrode can (20) (seal can) having a peripheral wall (22) (cylinder portion) and a flat portion (21), the positive electrode can being disposed as an inverted dish with respect to the negative electrode can (10); and a gasket (30) molded at least on an inner surface of the positive electrode can (20), extending from the opening edge of the peripheral wall (22) to the flat portion (21).Type: ApplicationFiled: September 13, 2010Publication date: December 20, 2012Applicant: HITACHI MAXELL ENERGY, LTD.Inventors: Koji Yamaguchi, Toshihiko Ishihara
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Publication number: 20120208697Abstract: A reversible thermosensitive recording medium including: reversible thermosensitive recording layer; first sheet-shaped base; second sheet-shaped base; first resin layer; second resin layer; and electronic information recording module containing module substrate, and electronic information recording element and antenna circuit disposed on the substrate, wherein the recording layer is provided adjacent to the first sheet-shaped base; the first or second sheet-shaped base has concave portion in which the element is disposed in depth direction thereof; the module is provided between the first and second sheet-shaped bases, where the first resin layer is provided between the module and the sheet-shaped base having the concave portion and the second resin layer is provided between the module and the sheet-shaped base having no concave portion; and inner side surface of the concave portion is tapered surface where maximum opening diameter of the concave portion decreases from opening edge thereof towards bottom surType: ApplicationFiled: February 14, 2012Publication date: August 16, 2012Applicant: RICOH COMPANY, LTD.Inventors: Koji Yamaguchi, Noboru Koga, Takeshi Owashi
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Patent number: 8121519Abstract: A process cartridge is provided detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum and a process device actable on the drum. The process cartridge also includes a cartridge positioning portion for engaging a main assembly positioning portion to position the cartridge with respect to a direction crossing the direction of the axis of the drum when the cartridge is mounted to the main assembly in a direction parallel with the axis of the photosensitive drum. Further, a movable member is provided movable between a first position contacting the main assembly in the process of mounting of the cartridge to the main assembly, and a second position contacting a main assembly urging member and receiving a force in the crossing direction to contact the cartridge positioning portion to the main assembly positioning portion to position the cartridge in the crossing direction.Type: GrantFiled: August 2, 2010Date of Patent: February 21, 2012Assignee: Canon Kabushiki KaishaInventors: Koji Yamaguchi, Henrique Massanori Oka
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Publication number: 20120027457Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus including an electrophotographic photosensitive drum, a process device actable on the drum, a cartridge positioning portion for engaging a main assembly positioning portion to position the cartridge with respect to a direction crossing the direction of the axis of the drum when the cartridge is mounted to the main assembly in a direction parallel with the axis of the photosensitive drum, and a movable member movable between a first position contacting the main assembly in the process of mounting of the cartridge to the main assembly, and a second position contacting a main assembly urging member and receiving a force in the crossing direction to contact the cartridge positioning portion to the main assembly positioning portion to position the cartridge in the crossing direction, when the cartridge is mounted to the main assembly.Type: ApplicationFiled: October 13, 2011Publication date: February 2, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Koji Yamaguchi, Henrique Massanori Oka
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Patent number: 8074018Abstract: A disk array apparatus has a plurality of the same type of disk array units. Each of the disk array units has a plurality of storage areas in each of which firmware for allowing the disk array unit to operate is stored. When the disk array apparatus recognizes that a first disk array unit has been disposed therein, it compares a version number of firmware stored in each storage area included in the first disk array unit with a version number of firmware stored in each storage area included in a second disk array unit that currently operates in the disk array apparatus. If these version numbers are the same, the disk array apparatus makes a storage area in which firmware executed by the first disk array unit is stored conform to a storage area in which firmware executed by the second disk array unit is stored.Type: GrantFiled: March 16, 2007Date of Patent: December 6, 2011Assignee: Fujitsu LimitedInventors: Takashi Kawada, Osamu Kimura, Koji Yamaguchi, Kazuo Nakashima, Chikashi Maeda
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Patent number: 8049134Abstract: A laser processing machine having a laser beam irradiation unit is provided. The laser beam irradiation unit includes: a laser beam oscillation section; a beam splitter adapted to split the laser beam emitted from the laser beam oscillation section into a first laser beam and a second laser beam; a condenser lens adapted to condense the first and second laser beams; a prism adapted to lead the first and second laser beams split by the beam splitter to the condenser lens; a first angle-changing mirror disposed on a first optical path adapted to lead the first laser beam split by the beam splitter; a second angle-changing mirror disposed on a second optical path adapted to lead the second laser beam split by the beam splitter to the prism; and a half-wave plate disposed in the first or second optical path to allow one of respective directions of the first and second polarization planes to be aligned with the other.Type: GrantFiled: April 28, 2008Date of Patent: November 1, 2011Assignee: Disco CorporationInventors: Keiji Nomaru, Hitoshi Hoshino, Koji Yamaguchi
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Patent number: 8043740Abstract: The flat-shaped battery includes an electrode material containing an active material, and a battery case which has the electrode material housed inside and in which a plurality of protruding members extending inwardly from an inner surface of the battery case are fixed to the inner surface. The electrode material is housed in the battery case with those individual protruding members inserted in the electrode material. As a result, even if the flat-shaped battery is subjected to such external influences as accelerations and vibrations, the electrode material can securely be prevented from moving within the battery case.Type: GrantFiled: March 18, 2008Date of Patent: October 25, 2011Assignee: Hitachi Maxell Energy, Ltd.Inventors: Noriyuki Yabushita, Koji Yamaguchi, Toshikazu Yoshiba
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Publication number: 20110142487Abstract: A process cartridge detachably mountable to a main assembly of an image forming apparatus includes an image-bearing member on which an electrostatic image is to be formed; a first frame; a bearing member, detachably mountable to the first frame, for rotatably supporting the image-bearing member; a first hole provided in the bearing member; a first wall, provided on the first frame, in which a second hole is provided; a second frame for rotatably supporting a developer carrying member on which a developer for developing the electrostatic image is to be carried; a second wall, provided on the second frame, in which a third hole is provided; and a connecting member including a shaft portion penetrating through the first hole, the second hole and the third hole and tightly engaging in the second hole, and including a flange portion, provided at an end portion of the shaft portion, for preventing the bearing member from being detached from the first frame.Type: ApplicationFiled: November 30, 2010Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Osamu Anan, Koji Yamaguchi, Kazuhiko Kanno
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Patent number: 7957167Abstract: A high-reliability IGBT drive device in which the high- and low-voltage side IGBTs are complementarily ON/OFF controlled before and after dead time. A reset pulse that turns OFF the high-voltage side IGBT is generated during the dead time as described in the following example. The reset pulse is generated immediately before an ON instruction for the low-voltage side IGBT, so that a period that begins immediately before the ON instruction for the low-voltage side IGBT and overlaps with the ON instruction, continuously during the dead time, continuously during dead time immediately before the low-voltage side IGBT turns ON, or in such a manner as to invalidate the ON instruction for the low-voltage side IGBT when an ON state of the high-voltage side IGBT is observed.Type: GrantFiled: May 24, 2007Date of Patent: June 7, 2011Assignee: Hitachi, Ltd.Inventors: Koji Yamaguchi, Naoki Sakurai
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Publication number: 20110126983Abstract: A paint film-protecting sheet (1) is provided which effectively prevents adhesive transfer to the paint film. The paint film-protecting sheet (1) has a pressure-sensitive adhesive layer which is comprised of a non-crosslinking pressure-sensitive adhesive (20) adjacent a polyolefin-based resin film serving as a supporting substrate (10). At least a surface portion (12) of the supporting substrate that adjoins the pressure-sensitive adhesive layer satisfies the following conditions: (1) it has an indentation modulus at 25° C. (Er(25)) of from 200 MPa to 1,100 MPa and (2) it has an indentation modulus at ?5° C. (Er(?5)) of from 400 MPa to 2,400 MPa.Type: ApplicationFiled: November 22, 2010Publication date: June 2, 2011Applicants: NITTO DENKO CORPORATION, KANSAI PAINT CO. LTD.Inventors: Toshitaka SUZUKI, Takeshi IGARASHI, Hiroko IKENAGA, Yuki SAITOU, Shinji INOKUCHI, Koji YAMAGUCHI, Yoshikuni HIRANO
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Publication number: 20110129655Abstract: A paint film-protecting sheet (1) that effectively prevents adhesive transfer to the paint film is provided. The paint film-protecting sheet (1) includes a pressure-sensitive adhesive (PSA) layer (20), which is comprised of a non-crosslinking PSA, disposed on a polyolefin-based resin film serving as a supporting substrate (10). At least a surface portion (12) of the supporting substrate which adjoins the PSA layer is formed of a resin material that satisfies both of the following conditions: (1) it contains W wt % of a LLDPE having a density d of 0.925 g/cm3 or less, wherein W is greater than or equal to 20; and (2) it has a LLDPE content index ? of 400 or more, the LLDPE content index ? being defined as (0.935?d)×W×1000.Type: ApplicationFiled: November 22, 2010Publication date: June 2, 2011Applicants: NITTO DENKO CORPORATION, KANSAI PAINT CO. LTD.Inventors: Toshitaka SUZUKI, Takeshi IGARASHI, Hiroko IKENAGA, Yuki SAITOU, Shinji INOKUCHI, Koji YAMAGUCHI, Yoshikuni HIRANO
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Publication number: 20100311579Abstract: A reversible thermosensitive recording medium including a reversible thermosensitive recording layer, a first sheet-shaped base provided adjacent to the reversible thermosensitive recording layer, an electronic information recording module containing a module substrate, and a convex-shaped electronic information recording element and an antenna circuit both disposed on the module substrate, and a first resin layer for bonding the first sheet-shaped base and the electronic information recording module, wherein the first sheet-shaped base has a concave portion on a surface opposite to a surface on which the reversible thermosensitive recording layer is formed, and the electronic information recording element is inserted into the concave portion of the first sheet-shaped base.Type: ApplicationFiled: June 9, 2010Publication date: December 9, 2010Applicant: RICOH COMPANY, LTD.Inventors: Noboru Koga, Tadafumi Tatewaki, Takeshi Owashi, Koji Yamaguchi
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Publication number: 20100290806Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus including an electrophotographic photosensitive drum, a process device actable on the drum, a cartridge positioning portion for engaging a main assembly positioning portion to position the cartridge with respect to a direction crossing the direction of the axis of the drum when the cartridge is mounted to the main assembly in a direction parallel with the axis of the photosensitive drum, and a movable member movable between a first position contacting the main assembly in the process of mounting of the cartridge to the main assembly, and a second position contacting a main assembly urging member and receiving a force in the crossing direction to contact the cartridge positioning portion to the main assembly positioning portion to position the cartridge in the crossing direction, when the cartridge is mounted to the main assembly.Type: ApplicationFiled: August 2, 2010Publication date: November 18, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Koji Yamaguchi, Henrique Massanori Oka
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Patent number: 7799415Abstract: A surface-coated cutting tool according to the present invention includes a base material and a coated film formed on the base material. The coated film serves as an outermost layer on the base material and has compressive stress. The compressive stress is varied so as to have strength distribution in a direction of thickness of the coated film. The strength distribution is characterized in that the compressive stress at a surface of the coated film continuously decreases from the surface of the coated film toward a first intermediate point located between the surface of the coated film and a bottom surface of the coated film and the compressive stress attains a relative minimum point at the first intermediate point.Type: GrantFiled: July 1, 2005Date of Patent: September 21, 2010Assignees: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.Inventors: Hideki Moriguchi, Haruyo Fukui, Shinya Imamura, Koji Yamaguchi, Junji Iihara
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Patent number: 7792460Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a process device actable on the drum, a cartridge positioning portion for engaging a main assembly positioning portion to position the cartridge with respect to a direction crossing the direction of the axis of the drum when the cartridge is mounted to the main assembly in a direction parallel with the axis of the photosensitive drum, and a movable member movable between a first position contacting the main assembly in the process of mounting of the cartridge to the main assembly, and a second position contacting a main assembly urging member and receiving a force in the crossing direction to contact the cartridge positioning portion to the main assembly positioning portion to position the cartridge in the crossing direction, when the cartridge is mounted to the main assembly.Type: GrantFiled: March 3, 2009Date of Patent: September 7, 2010Assignee: Canon Kabushiki KaishaInventors: Koji Yamaguchi, Henrique Massanori Oka