Patents by Inventor Tomohiro Yamashita

Tomohiro Yamashita 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: 20150206920
    Abstract: The performance of a semiconductor device is improved by preventing 1/f noise from being generated in a peripheral transistor, in the case where the occupation area of photodiodes, which are included in each of a plurality of pixels that form an image pickup device, is expanded. In the semiconductor device, the gate electrode of an amplification transistor is formed by both a gate electrode part over an active region and a large width part that covers the boundary between the active region and an element isolation region and the active region near the boundary and that. has a gate length larger than that of the gate electrode part.
    Type: Application
    Filed: November 10, 2014
    Publication date: July 23, 2015
    Inventors: Yuki YAMAMOTO, Yukio NISHIDA, Tomohiro YAMASHITA
  • Publication number: 20150184008
    Abstract: An ink jet ink set including three aqueous inks of a cyan ink, a magenta ink and a yellow ink, wherein any two inks of the cyan ink, the magenta ink and the yellow ink are inks satisfying the following condition A, and the other ink is an ink satisfying the following condition B: Condition A: an ink containing a first self-dispersible pigment having a functional group that contains a phosphonic acid group and another atomic group and is bonded to a particle surface of the pigment; and Condition B: an ink containing a second self-dispersible pigment having a functional group that contains at least one of a sulfonic acid group and a carboxylic acid group and is bonded to a particle surface of the pigment.
    Type: Application
    Filed: December 3, 2014
    Publication date: July 2, 2015
    Inventors: Yasuhito Mori, Tomohiro Yamashita
  • Patent number: 9034138
    Abstract: A method for manufacturing a polarizing plate, the method comprising bonding a first transparent protective film and a second transparent protective film to both sides of a polarizer with an adhesive layer interposed between the polarizer and each of the first and second transparent protective films, wherein the first and second transparent protective films have different elasticities (elastic modulus×thickness (?m)), the three films are pressure-bonded by being simultaneously allowed to pass between a pair of rolls, a direction in which the polarizer is fed and allowed to pass between the pair of rolls is inclined toward the high-elasticity film. The polarizing plate obtained by the method can be suppressed the occurrence of bubbles between the polarizer and the transparent protective films.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: May 19, 2015
    Assignee: NITTO DENKO CORPORATION
    Inventors: Mie Nakata, Tetsurou Takeda, Shunsuke Murayama, Tomohiro Yamashita
  • Publication number: 20150123178
    Abstract: The present invention improves the performance of an image sensor. In a planar view, fluorine is introduced into a part overlapping with a channel region in a gate electrode GE1 of an amplification transistor and is not introduced into the interior of a semiconductor substrate 1S. Concretely as shown in FIG. 20, a resist film FR1 is patterned in the manner of opening the part planarly overlapping with the channel region in the gate electrode GE1. Then fluorine is injected into the interior of the gate electrode GE1 exposed from an opening OP1 by an ion implantation method using the resist film FR1 in which the opening OP1 is formed as a mask.
    Type: Application
    Filed: October 25, 2014
    Publication date: May 7, 2015
    Inventors: Yukio Nishida, Tomohiro Yamashita, Yuki Yamamoto
  • Patent number: 8998397
    Abstract: The invention provides an ink that inhibits lowering of ejection stability caused by a precipitate derived from a self-dispersible type monoazo pigment and also inhibits deterioration of a liquid contact surface of a heater portion of a recording head. The ink is an ink for ink jet recording system employing an thermal energy, containing a monoazo pigment, a resin and a surfactant represented by the following formula (1). A proportion of a molecular weight of an ethylene oxide group moiety occupying the surfactant is 10% or more and 85% or less, the monoazo pigment is a self-dispersible pigment to the particle surface of which at least one hydrophilic group selected from the group consisting of —COOM, —SO3M, —PO3HM and —PO3M2 is bonded directly or through another atomic group, and the acid value of the resin is 240 mg KOH/g or less.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhito Mori, Tomohiro Yamashita
  • Patent number: 8992676
    Abstract: An ink set for an aqueous ink jet includes a first ink and a second ink, in which the first ink satisfies requirement 1 and requirement 2 described below: requirement 1: the first ink contains a coloring material, a fluorinated surfactant, and a specific salt, and requirement 2: the difference between the dynamic surface tensions of the first ink at lifetimes of 50 msec and 5000 msec measured by a maximum bubble pressure method at 25° C. is 17 mN/m or more, and the dynamic surface tension of the first ink at a lifetime of 5000 msec is 32 mN/m or less.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Yamashita, Shin-ichi Hakamada
  • Publication number: 20150049380
    Abstract: A polarizing film, comprising a polarizer; transparent protective films with a water-vapor permeability of 150 g/m2/24 hours or less provided on both sides of the polarizer; and adhesive layers each interposed between the polarizer and one of the transparent protective films, wherein the adhesive layers are formed by applying an active energy ray to an active energy ray-curable adhesive composition containing a radically polymerizable compound, and the transparent protective films are bonded to the polarizer with the adhesive layers.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 19, 2015
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tetsurou Takeda, Mie Nakata, Shunsuke Murayama, Tomohiro Yamashita, Takeshi Saito, Kunihiro Inui
  • Publication number: 20140239377
    Abstract: To enhance the performance of a semiconductor device. In a method for manufacturing a semiconductor device, a metal film is formed over a semiconductor substrate having an insulating film formed on a surface thereof, and then the metal film is removed in a memory cell region, whereas, in a part of a peripheral circuit region, the metal film is left. Next, a silicon film is formed over the semiconductor substrate, then the silicon film is patterned in the memory cell region, and, in the peripheral circuit region, the silicon film is left so that an outer peripheral portion of the remaining metal film is covered with the silicon film. Subsequently, in the peripheral circuit region, the silicon film, the metal film, and the insulating film are patterned for forming an insulating film portion formed of the insulating film, a metal film portion formed of the metal film, and a conductive film portion formed of the silicon film.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Yukio NISHIDA, Tomohiro Yamashita
  • Patent number: 8740370
    Abstract: A liquid composition used in combination with an ink containing a coloring material is ejected by the action of thermal energy from a recording head including a heating resistor having a protecting layer that is to come into contact with the liquid composition and that contains at least one of a metal and a metal oxide. The liquid composition contains at least either an organic compound having a carboxy group and an amino group or an amine oxide compound, an organic acid having a carboxy group, and water.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukako Tamanuki, Shin-ichi Hakamada, Tomohiro Yamashita, Yasuhito Mori
  • Publication number: 20140116618
    Abstract: A method for manufacturing a polarizing plate, the method comprising bonding a first transparent protective film and a second transparent protective film to both sides of a polarizer with an adhesive layer interposed between the polarizer and each of the first and second transparent protective films, wherein the first and second transparent protective films have different elasticities (elastic modulus×thickness (?m)), the three films are pressure-bonded by being simultaneously allowed to pass between a pair of rolls, a direction in which the polarizer is fed and allowed to pass between the pair of rolls is inclined toward the high-elasticity film. The polarizing plate obtained by the method can be suppressed the occurrence of bubbles between the polarizer and the transparent protective films.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 1, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Mie Nakata, Tetsurou Takeda, Shunsuke Murayama, Tomohiro Yamashita
  • Publication number: 20140035055
    Abstract: MISFETs after the 32 nm technology node have a High-k gate insulating film and a metal gate electrode. Such MISFETs have the problem that the absolute value of the threshold voltage of n-MISFET and p-MISFET inevitably increases by the subsequent high temperature heat treatment. The threshold voltage is therefore controlled by forming various threshold voltage adjusting metal films on a High-k gate insulating film and introducing a film component from them into the High-k gate insulating film. The present inventors have however revealed that lanthanum or the like introduced into the High-k gate insulating film of the n-MISFET is likely to transfer to the STI region by the subsequent heat treatment. The semiconductor integrated circuit device according to the present invention is provided with an N channel threshold voltage adjusting element outward diffusion preventing region in the surface portion of the element isolation region below and at the periphery of the gate stack of the n-MISFET.
    Type: Application
    Filed: April 9, 2012
    Publication date: February 6, 2014
    Inventors: Hirofumi Shinohara, Yukio Nishida, Katsuyuki Horita, Tomohiro Yamashita, Hidekazu Oda
  • Patent number: 8616695
    Abstract: Provided is an ink jet ink including a monoazo pigment and a resin, the ink being used for an ink jet recording system in which the ink is ejected from a recording head by an action of thermal energy. The monoazo pigment is a self-dispersible pigment having an anionic group bonded to a particle surface of the pigment directly or via another atomic group and has a surface charge amount of 5.9×10?2 mmol/g or more and 9.8×10?2 mmol/g or less. The resin has an acid value of 100 mg KOH/g or more and 160 mg KOH/g or less. The mass ratio of the content (mass %) of the resin to the content (mass %) of the monoazo pigment in the ink is 0.05 times or more and 0.25 times or less.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: December 31, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhito Mori, Shinichi Hakamada, Tomohiro Yamashita
  • Publication number: 20130342604
    Abstract: An ink set for an aqueous ink jet includes a first ink and a second ink, in which the first ink satisfies requirement 1 and requirement 2 described below: requirement 1: the first ink contains a coloring material, a fluorinated surfactant, and a specific salt, and requirement 2: the difference between the dynamic surface tensions of the first ink at lifetimes of 50 msec and 5000 msec measured by a maximum bubble pressure method at 25° C. is 17 mN/m or more, and the dynamic surface tension of the first ink at a lifetime of 5000 msec is 32 mN/m or less.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 26, 2013
    Inventors: Tomohiro Yamashita, Shin-ichi Hakamada
  • Patent number: 8592284
    Abstract: Provided are a semiconductor device making it possible to form an element region having a dimension close to a designed dimension, restrain a phenomenon similar to gate-induced drain leakage, and further restrain compressive stress to be applied to the element region by oxidation of a conductive film; and a method for manufacturing the semiconductor device. Trenches are made in a main surface of a semiconductor substrate. By oxidizing the wall surface of each of the trenches, a first oxide film is formed on the wall surface. An embedded conductive film is formed to be embedded into the trench. The embedded conductive film is oxidized in an atmosphere containing an active oxidizing species, thereby forming a second oxide film. A third oxide film is formed on the second oxide film by CVD or coating method.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 26, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Masato Ishibashi, Katsuyuki Horita, Tomohiro Yamashita, Takaaki Tsunomura, Takashi Kuroi
  • Publication number: 20130027476
    Abstract: The invention provides an ink that inhibits lowering of ejection stability caused by a precipitate derived from a self-dispersible type monoazo pigment and also inhibits deterioration of a liquid contact surface of a heater portion of a recording head. The ink is an ink for ink jet recording system employing an thermal energy, containing a monoazo pigment, a resin and a surfactant represented by the following formula (1). A proportion of a molecular weight of an ethylene oxide group moiety occupying the surfactant is 10% or more and 85% or less, the monoazo pigment is a self-dispersible pigment to the particle surface of which at least one hydrophilic group selected from the group consisting of —COOM, —SO3M, —PO3HM and —PO3M2 is bonded directly or through another atomic group, and the acid value of the resin is 240 mg KOH/g or less.
    Type: Application
    Filed: June 22, 2012
    Publication date: January 31, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhito Mori, Tomohiro Yamashita
  • Publication number: 20120268532
    Abstract: Provided is an ink jet ink including a monoazo pigment and a resin, the ink being used for an ink jet recording system in which the ink is ejected from a recording head by an action of thermal energy. The monoazo pigment is a self-dispersible pigment having an anionic group bonded to a particle surface of the pigment directly or via another atomic group and has a surface charge amount of 5.9×10?2 mmol/g or more and 9.8×10?2 mmol/g or less. The resin has an acid value of 100 mg KOH/g or more and 160 mg KOH/g or less. The mass ratio of the content (mass %) of the resin to the content (mass %) of the monoazo pigment in the ink is 0.05 times or more and 0.25 times or less.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 25, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhito Mori, Shinichi Hakamada, Tomohiro Yamashita
  • Patent number: 8283272
    Abstract: A purpose of the present invention is to provide a dielectric ceramic composition which is available to obtain a multilayer ceramic capacitor having a high specific permittivity and a small temperature change of capacitance. A dielectric ceramic composition comprises a dielectric main component composed of 86.32 to 97.64 mol % of BaTiO3, 0.01 to 10.00 mol % of Y2O3 and 0.01 to 10.00 mol % of MgO and 0.001 to 0.200 mol % of V2O5, 0.01 to 1.0 mol % of more than one kind of a first additive selected from a group composed of MnO, Cr2O3, Co2O3, 0.5 to 10.0 mol % of a second additive which is {Ba?, Ca (1??)}SiO3 (note, 0???1), and Sr: 10 to 500 ppm, S: 10 to 50 ppm, Al: 10 to 50 ppm, Fe: 10 to 50 ppm, Zr: 100 to 800 ppm, Y: 10 to 100 ppm, Hf: 10 to 100 ppm to 100 parts by weight of BaTiO3.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 9, 2012
    Assignee: TDK Corporation
    Inventors: Shinsuke Hashimoto, Masato Konno, Momoyo Nitta, Tomohiro Yamashita, Hiroshi Sasaki
  • Publication number: 20120193726
    Abstract: A semiconductor device including an n-channel-type MISFET (Qn) having an Hf-containing insulating film (5), which is a high dielectric constant gate insulating film containing hafnium, a rare-earth element, and oxygen as main components, and a gate electrode (GE1), which is a metal gate electrode, is manufactured. The Hf-containing insulating film (5) is formed by forming a first Hf-containing film containing hafnium and oxygen as main components, a rare-earth containing film containing a rare-earth element as a main component, and a second Hf-containing film containing hafnium and oxygen as main components sequentially from below and then causing these to react with one another.
    Type: Application
    Filed: October 6, 2009
    Publication date: August 2, 2012
    Inventors: Tomohiro Yamashita, Yukio Nishida, Takashi Hayashi, Yoshiki Yamamoto, Masao Inoue
  • Patent number: 8220904
    Abstract: A liquid composition used in combination with an ink containing a coloring material is ejected by the action of thermal energy from a recording head including a heating resistor having a protecting layer that contains at least one of a metal and a metal oxide and that is to come into contact with the liquid composition. The liquid composition contains an organic acid having a carboxy group, an alkali metal ion, an organic acid having a sulfonate group, a polyvalent metal ion, and water.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 17, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Yamashita, Shin-ichi Hakamada
  • Patent number: 8102624
    Abstract: In a perpendicular magnetic recording head having a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween on a medium-opposing surface, a pair of side coils constituting respective electrically closed circuits on a surface parallel to the medium-opposing surface are provided on both sides in a track width direction of a magnetic pole part of the main magnetic pole layer. When a leakage magnetic field spreading from the magnetic pole part of the main magnetic pole layer passes through the pair of side coils, the pair of side coils generate a demagnetizing field in such a direction as to cancel a magnetic flux change thereof, thereby preventing the leakage magnetic flux from spreading.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: January 24, 2012
    Assignee: TDK Corporation
    Inventor: Tomohiro Yamashita