Patents by Inventor Hiroshi Yokoyama

Hiroshi Yokoyama 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: 7717159
    Abstract: A mold clamping apparatus for a die casting machine is provided. The apparatus can include a base, a fixed die plate standing fixedly on an end of an injection side of the base and defining a cavity therein, and a moving die plate arranged so as to proceed and retract on the base facing the fixed die plate and defining a cavity therein. A first versatile main mold can be disposed in the cavity of the fixed die plate and adapted to receive an insert die. Further, a second versatile main mold can be disposed in the cavity of the moving die plate and adapted to receive an insert die.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: May 18, 2010
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Makoto Tsuji, Hiroshi Yokoyama, Shinya Itani
  • Publication number: 20100086465
    Abstract: In a fabrication zone where a silicon ribbon 12 is manufactured from molten silicon under an inactive gaseous atmosphere, a fabrication belt conveyer (fabrication bed) 5 composed of a feeding substrate 11 is arranged. The substrate is supplied with molten silicon 2 from a crucible furnace through a rotating roller 3 which adjusts the molten silicon into a state suitable for fabrication. The substrate 11 is provided with a plurality of gas ejecting pores and gas evacuating pores for ejecting and evacuating a gas with respect to a silicon ribbon 4 being fabricated from the molten silicon 2 from below the silicon ribbon.
    Type: Application
    Filed: January 22, 2008
    Publication date: April 8, 2010
    Inventors: Gen Kojima, Hiroshi Yokoyama, Yutaka Hayashi
  • Publication number: 20100047479
    Abstract: The present invention is to provide a high quality smectic aerogel which is not brittle and a method for producing the smectic aerogel by using a host material comprising a mixture of a smectic liquid crystal and a UV-curable material or a host material comprising a smectic UV-curable material and by selecting an appropriate host material. A smectic aerogel comprising 4-nonyl-4?-cyanobiphenyl (9BC) and air bubbles can be produced, wherein hexagonal or pentagonal air cells are separated from each other by a smectic layer comprising a smectic liquid crystal. The thickness of the wall of the smectic layer at the boundaries of the air cells is about 24 ?m, which corresponds to about 6000 smectic layers. The thickness of the wall of the smectic layer at the boundaries can be varied. Particularly, the thickness can be reduced to as thin as several smectic layers.
    Type: Application
    Filed: November 16, 2007
    Publication date: February 25, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Camilla Olivia Voeltz, Yoji Maeda, Yuka Tabe, Hiroshi Yokoyama
  • Patent number: 7649050
    Abstract: A two package type clear coating composition which can form cured coating film excelling in all aspects of scratch resistance, acid resistance, stain resistance and finished appearance such as coated surface smoothness, comprising a hydroxyl-containing acrylic resin (A) having a hydroxyl value of 100-200 mgKOH/g and a number-average molecular weight of 5,000-10,000, which is obtained by copolymerization of a monomeric mixture comprising an aromatic vinyl monomer and a monomer having cyclohexyl ring; a trifunctional HMDI isocyanurate compound (B); and a polyester polyol (C) having a hydroxyl value of 250-350 mgKOH/g and a number-average molecular weight of 350-550, which is obtained by esterification reaction of C3-6 diol with dicarboxylic acid having cyclohexyl ring.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: January 19, 2010
    Assignees: Nissan Motor Co., Ltd., Kansai Paint Co., Ltd.
    Inventors: Tatsuya Ishihara, Hiroshi Yokoyama, Tomoyoshi Saitoh, Tatsuya Suzuki, Goro Saito, Toshiyuki Hanaoka, Yoshiyuki Yukawa
  • Publication number: 20100010656
    Abstract: To provide a production system creating system that can create production systems of various articles by freely combining a plurality of production factors of various types from a superordinate concept toward a subordinate concept thereof.
    Type: Application
    Filed: August 20, 2007
    Publication date: January 14, 2010
    Inventors: Mikio Yotsukura, Hiroshi Yokoyama
  • Patent number: 7631936
    Abstract: The invention provides a reclining apparatus which can make a width of an apparatus small. The reclining apparatus of the present invention is provided with a first bracket (1) attached to a seat back (10), a second bracket (2) attached to a seat cushion (11), a first shaft (3) forming a rotation center of the first bracket (1), a spiral spring (5) spirally wound around the first shaft (3) and biasing a rotation in a forward direction of the first bracket (1), and a rotary damper (6) decelerating a rotating speed of the first bracket (1) against an biasing force of the spiral spring (5). The rotary damper (6) and the spiral spring (5) are arranged in parallel, and an arm (7) rotating a casing (6a) of the rotary damper (6) on the basis of a rotation of the first bracket (1) is provided between the rotary damper (6) and the second bracket (2).
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: December 15, 2009
    Assignee: NHK Spring Co., Ltd.
    Inventors: Takao Fukukawa, Masaaki Takii, Hiroshi Yokoyama, Nobuhito Kanae
  • Publication number: 20090279033
    Abstract: The present invention provides a liquid crystal display device using nematic liquid crystal material with low power consumption and having a memory characteristic which can be easily fabricated with a high yield. The liquid crystal device using nematic liquid crystal material includes: a pair of substrates (1,4) with plate-like electrode layers (2,5) thereon; a liquid crystal layer interposed between the pair of substrates (1,4); and alignment layers (3,6) arranged between the liquid crystal layer and at least one of the pair of substrates (1,4). The alignment layers (3,6) include a plurality of different alignment domains having a substantially vertical direction and substantially horizontal direction to the surface of the substrate. Both of two orientation states, i.e. a substantially vertical orientation state and a substantially horizontal orientation state of the liquid crystal, are stable and have a memory characteristic in the absence of an electric field.
    Type: Application
    Filed: August 14, 2006
    Publication date: November 12, 2009
    Applicant: Japan Science and Technology
    Inventors: Makoto Yoneya, Hiroshi Yokoyama
  • Patent number: 7615262
    Abstract: The present invention provides a liquid crystal material, method for producing the liquid crystal material, and liquid crystal device thereof which shows low light absorption in the ultraviolet light region. A compound of formula (I) wherein R is an alkyl or alkenyl group which is optionally interposed with one or more oxygen or sulphur atoms, Y is independently selected from oxygen or sulphur, n is an integer of from 2 to 8, X is a direct bond, C1-4alkylene or C2-4alkenylene, and A is selected from a various specified ring structures. The liquid crystal material (compounds) are of low birefringence and are U.V. stable and are useful in liquid crystal devices that need low birefringence such as reflective displays, or which are exposed to high levels of U.V. light such as phosphor display cells.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: November 10, 2009
    Assignee: Japan Science and Technology Agency
    Inventors: Neil Campbell, Jun Yamamoto, Hiroshi Yokoyama
  • Publication number: 20090276262
    Abstract: There is provided a production management system that can easily build a production system of each finished product without requiring the time and labor for management of production factors. In a production management system (10), A computer (11) extracts each of the production factors required for building the production system from factor-type databases (13, 14, 15, 16), and connects the production factors extracted from the factor-type databases (13, 14, 15, 16) in series from a superordinate concept toward a subordinate concept according to a two-term relationship and a three-term relationship stored in a relational database (17) to thereby execute production system building means for forming the production system corresponding to the finished product.
    Type: Application
    Filed: June 26, 2007
    Publication date: November 5, 2009
    Inventors: Mikio Yotsukura, Hiroshi Yokoyama
  • Publication number: 20090248185
    Abstract: To provide a production system creating system that can freely combine a plurality of production factors of various types from a superordinate concept toward a subordinate concept thereof to thereby create a production system of a finished product.
    Type: Application
    Filed: August 1, 2007
    Publication date: October 1, 2009
    Inventors: Mikio Yotsukura, Hiroshi Yokoyama
  • Publication number: 20090205373
    Abstract: High quality plate glass free from surface defects, and excellent in macro thickness uniformity, flatness, and the like is manufactured by minimizing the part to be wasted. To that end, glass melt 4 from a melting furnace 1 is supplied between a gas ejection/discharge rotary roll 5 and a gas ejection/discharge concave support 6. The gas ejection/discharge rotary roll 5 has a large number of gas ejection holes each including a flow path having fluid resistance (e.g., vortex flow resistance) in the inside for supplying compression air, and a large number of gas decompression discharge holes each including the same flow path. The gas ejection/discharge concave support 6 has a large number of gas ejection holes for supplying compression air, each including the same flow path, and gas ordinary pressure discharge holes each communicated with the ordinary pressure release space.
    Type: Application
    Filed: May 14, 2007
    Publication date: August 20, 2009
    Inventors: Gen Kojima, Hiroshi Yokoyama
  • Publication number: 20090198363
    Abstract: To provide a production system creating system that can create a production system of an article by freely combining a plurality of production factors of various types from a superordinate concept toward a subordinate concept thereof. In a production system creating system 10, a plurality of two-term relationships of various types required for creating the production system are extracted from a relational database 18 and a plurality of production factors of various types corresponding to first and second production factors for forming the extracted two-term relationships are also extracted from a factor-type database 17, and while integrating these two-term relationships extracted from the relational database 18, these production factors extracted from the factor-type database 17 are connected in series from the superordinate concept toward the subordinate concept according to the two-term relationships thus integrated to thereby create the production system corresponding to the article.
    Type: Application
    Filed: August 1, 2007
    Publication date: August 6, 2009
    Inventors: Mikio Yotsukura, Hiroshi Yokoyama
  • Publication number: 20090144008
    Abstract: The present invention is a filler metal installation position checking method and a filler metal installation position checking system for confirming difference between installation position and designed position of a filler metal embedded in a wall surface. A standard surface target 16 having known actual dimension and position to a wall surface 12 is provided to the wall surface 12 where a filler metal 14 is installed. The wall surface 12 is photographed together with the standard surface target 16 to create image data 18. Using actual position and dimension of the standard surface target 16 and position and dimension of the standard surface target 16 on an image displayed by the image data 18, the image data 18 is converted into corrected image data 20 displaying an image corrected in a manner that the image is photographed from front of the wall surface.
    Type: Application
    Filed: November 18, 2008
    Publication date: June 4, 2009
    Applicant: HITACHI PLANT TECHNOLOGIES, LTD.
    Inventors: Hiroshi Yokoyama, Yuichi Yamamoto, Shinichi Ebata
  • Publication number: 20090103250
    Abstract: An input device that inputs information by a slide operation depending on an operation body contains a housing including an operation surface, a detection unit that is provided in the housing and detects a slide position inputted by a slide operation depending on the operation body, and an operation unit that covers at least a portion of the detection unit and is slide-operated along the operation surface of the housing. The operation unit has a convex shape which becomes thicker along the sliding direction from one portion of the operation surface of the housing and also which becomes thinner toward the other portion of the operation surface thereof.
    Type: Application
    Filed: September 16, 2008
    Publication date: April 23, 2009
    Applicants: SONY CORPORATION, SONY ERICSSON MOBILE COMMUNICATIONS JAPAN, INC.
    Inventors: Kouichiro Takashima, Seiji Muramatsu, Tsutomu Takahashi, Shun Kayama, Yukiko Shimizu, Takashi Sawada, Satoshi Kushima, Yuuji Arataki, Hiroshi Yokoyama, Kazuhiko Takeda
  • Patent number: 7520592
    Abstract: An electrostatic attraction fluid jet device of the present invention is so arranged that a nozzle (4) is formed so as to correspond to a meniscus equivalent to a tip portion in the form of a taylor cone formed in a process of an electrostatic attraction of ink (2) as a conventional fluid. A diameter of an ink-ejecting hole (4b) of the nozzle (4) is set to be substantially the same as a diameter of the tip portion, which is about to be ejected, of the meniscus (14) of ink. Moreover, the diameter of the ink-ejecting hole (4b) of the nozzle (4) is set to be equal to or less than a droplet diameter of the ink (2) which has just been ejected. Therefore, it is possible to provide an electrostatic attraction fluid jet device which can realize a recording device which has high resolution, is safe and is highly versatile.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: April 21, 2009
    Assignees: Sharp Kabushiki Kaisha, Konica Minolta Holdings, Inc., National Institute of Advanced Industrial Science and Technology
    Inventors: Kaoru Higuchi, Yasuo Nishi, Kazuhiro Murata, Hiroshi Yokoyama
  • Patent number: 7496988
    Abstract: A dust separation section is provided at a suction air passage between a suction opening of a vacuum cleaner main body and an intake opening of a motor fan to separate dust sucked from the suction opening with air and a dust collection section provided at the suction air passage for collecting the dust separated from the air from the dust separation section. Moreover, the dust separation section of the electric vacuum cleaner has a dust guiding space adapted to inflow the dust sucked from the suction opening from one end of the dust guiding space and for guiding the dust from an other end of the dust guiding space to the dust collection section, through a dust strike section, by an inertia force, and an air guiding air passage is provided to guide air from a midstream of the dust guiding space to the intake opening of the motor fan without passing through the dust collection section.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: March 3, 2009
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Ritsuo Takemoto, Masatoshi Tanaka, Hiroshi Yokoyama, Hitoshi Suzuki, Kiyoshi Ebe, Yoshihiro Tsuchiya, Ai Tanaka, Yasushi Nakatogawa, Ikuo Oshima, Yutaka Maeda
  • Patent number: 7495215
    Abstract: The present invention provides a probe for a scanning magnetic force microscope having a resolution sufficient to allow observation of a magnetic storage medium with 1200 kFCI or higher recording densities, a method for producing the probe, and a method for forming a ferromagnetic alloy film on a carbon nanotube. In the context of the present invention, the probe for a scanning magnetic force microscope comprises a carbon nanotube whose surface is at least in part coated with a ferromagnetic alloy film consisting of any one of a Co—Fe alloy and a Co—Ni alloy, wherein the arithmetic mean roughness (Ra 10 ?m) of the surface of the ferromagnetic alloy film is controlled to 1.15 nm or less. A method for producing such probes for a scanning magnetic force microscope and a method for forming such a ferromagnetic alloy film on a carbon nanotube, so as to achieve such mean surface roughness by controlling the growth rate of the ferromagnetic alloy film within the range of 1.0 to 2.5 nm/min, is also disclosed.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: February 24, 2009
    Assignees: National Institute of Advanced Industrial Science and Technology, SII Nanotechnology Inc.
    Inventors: Hiroyuki Akinaga, Yasuyuki Semba, Hiroshi Yokoyama, Masatoshi Yasutake, Hiromi Kuramochi
  • Publication number: 20090004278
    Abstract: It is an object of the present invention to provide highly safe nanoparticles made from highly biocompatible materials without the use of a surfactant or synthetic polymer. The present invention provides a protein nanoparticle which is obtained by enzymatic crosslinking during and/or after the formation of protein nanoparticle.
    Type: Application
    Filed: January 30, 2007
    Publication date: January 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Makiko Aimi, Ryoichi Nemori, Yousuke Miyashita, Hiroshi Yokoyama
  • Patent number: 7449283
    Abstract: First, through a coating step, a photolithography step and an etching step, a plurality of electrodes 142, 142, . . . are formed on a base plate 141. Next, a resist layer 143b is formed on the base plate 141 so as to cover all of the electrodes 142, 142, . . . , and by exposing and developing the resist layer 143b, a nozzle 103 having a super minute diameter is formed to stand with respect to the base plate 141 so as to make the resist layer 143b correspond to each electrode 142, and an in-nozzle passage is formed in each nozzle 103.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: November 11, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuo Nishi, Kaoru Higuchi, Kazuhiro Murata, Hiroshi Yokoyama
  • Publication number: 20080274320
    Abstract: The present invention provides a method of producing polyalkylene terephthalate, which comprises: introducing a prepolymer of polyalkylene terephthalate that is in a molten state comprising 70 mol % or more of ethylene terephthalate or 1,4-butylene terephthalate repeating units and having an intrinsic viscosity [?] between 0.2 and 2 dl/g through a feed opening to a polymerization reactor; discharging the introduced prepolymer from holes of a perforated plate; and polymerizing the prepolymer under reduced pressure, while allowing the prepolymer to fall along the surface of a support that is open towards the outside at a temperature between the [crystalline melting point?10° C.] of the prepolymer or higher and the [crystalline melting point+30° C.] of the prepolymer or lower under the conditions represented by a formula S1/S2>1, wherein S1 is the surface area of falling polyalkylene terephthalate, and S2 is the area where the support is in contact with polyalkylene terephthalate.
    Type: Application
    Filed: October 7, 2004
    Publication date: November 6, 2008
    Inventors: Hiroshi Yokoyama, Katsuhiro Fujimoto, Muneaki Aminaka, Junichi Sugimoto, Tsutomu Katsumata