Patents by Inventor Akira Nakayama

Akira Nakayama 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: 6644629
    Abstract: A winch over-winding prevention apparatus includes: a winch drum that is driven for up/down hoist in response to a command issued through an operating lever; a stop switch that is activated when a suspended object raised or lowered as a hoisting cable wound around the winch drum is further taken up or fed out is hoisted up to a predetermined stop position; and a stop device that stops drive of the winch drum when the stop switch is activated, and further includes: a speed detection device that detects a hoist speed of the suspended object; a speed reduction device that reduces a drive speed of the winch drum once the suspended object reaches a predetermined speed reduction start position; and a speed reduction control device that calculates a deceleration rate of the winch drum in correspondence to the hoist speed of the suspended object detected by the speed detection device and controls drive of the speed reduction device in response to a speed reduction command corresponding to the deceleration rate.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: November 11, 2003
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shinobu Higashi, Kazuhisa Ishida, Kouji Funato, Toshimi Sakai, Masami Ochiai, Teruo Igarashi, Akira Nakayama, Tsutomu Udagawa
  • Publication number: 20030101840
    Abstract: A manual gearshift device for an automotive automatic transmission operative in an automatic shift mode in which a gear ratio is automatically varied according to driving conditions and a manual mode in which a gear ratio is manually changed is disclosed. The manual gear shift device, that is installed to spokes of a steering wheel extending in substantially diametrically opposite horizontal directions, comprises a first gearshift switch which is installed to one of the spokes at an obverse side of the steering wheel and provides a shift-up command signal and a second gearshift switch, desirably different in shape and operative direction from the first gearshift switch, which is installed to one of the spokes at a reverse side of the steering wheel and provides a shift-up command signal.
    Type: Application
    Filed: October 17, 2002
    Publication date: June 5, 2003
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kazuhiko Yoshikawa, Yoshinori Ohtsubo, Yasuyuki Inai, Kouji Furukawa, Akira Nakayama, Shingo Kunihiro, Akiko Ogasawara
  • Patent number: 6417461
    Abstract: A circuit substrate in which the conductor portions constituting the functional devices formed in the insulating board have interfacial electric conductivities &sgr; of not larger than 2.90×107 &OHgr;−1·m−1 to greatly lower the insertion losses.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: July 9, 2002
    Assignee: Kyocera Corporation
    Inventors: Seiichi Hirahara, Akira Nakayama, Akira Imoto, Shuji Nakazawa, Tatsuji Furuse
  • Patent number: 6356173
    Abstract: A high-frequency module in which a plurality of cavities are formed on the surface of a dielectric board, internal high-frequency signal transmission lines are connected to high-frequency devices in the cavities and are located in the cavities, the internal high-frequency signal transmission lines being electromagnetically coupled to the external high-frequency signal transmission line, and the high-frequency devices in the cavities are connected to each other relying on the electromagnetic coupling through the external line. The high-frequency module enables high-frequency signals to be transmitted among the high-frequency devices with a small loss. The module has a very simple structure, and is cheaply produced, and offers an advantage that it can be easily obtained in a small size.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 12, 2002
    Assignee: Kyocera Corporation
    Inventors: Koichi Nagata, Kenji Kitazawa, Shinichi Koriyama, Shigeki Morioka, Takanori Kubo, Hidehiro Minamiue, Masanobu Ishida, Akira Nakayama, Naoyuki Shino
  • Patent number: 6337146
    Abstract: A hydrogen storage laminated material can be obtained which is capable of achieving reduction in weight as well as being mass-produced industrially while assuring excellent hydrogen storage capability. The hydrogen storage laminated material (10) has a laminated structure of a first layer (6a) and a second layer (7a), wherein the first layer is formed from an alloy or compound including an element of a group 2A or 3A or an element of at least one of the groups 2A and 3A, and at least partially includes a bcc structure, and the second layer is formed from an alloy or compound including an element of one of groups 6A, 7A and 8A or an element of at least one of the groups 6A, 7A and 8A.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: January 8, 2002
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kouichi Sogabe, Shousaku Yamanaka, Yoshinobu Takeda, Nozomu Kawabe, Hideo Itozaki, Akira Nakayama, Takashi Uemura
  • Patent number: 6333894
    Abstract: The present invention implements a decrease in chip size. The device is comprised of memory cell arrays 34a and 34b, a bank selector 36, a cell select circuit 38a, a data multiplexer 40, and an input/output buffer 42. The bank selector generates a bank select signal and selects the memory cell arrays alternately. The cell select circuit selects a predetermined memory cell of the memory cell array selected by the bank select signal and performs a read operation from and a write operation to this memory cell. The data multiplexer transfers the read data from the memory cell array selected by the bank select signal to the input/output buffer.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: December 25, 2001
    Assignee: Oki Electric Industry, Co., Ltd.
    Inventors: Akira Nakayama, Yuichi Matsushita
  • Patent number: 6257945
    Abstract: A method for producing a picture display device is disclosed. A glass tube is placed in an opening area of the through-hole formed at a pre-set position of a first substrate of a hermetically sealed assembly comprised of the first substrate and a plate element spaced apart from the first substrate a pre-set distance, with the perimetral area of the resulting assembly being sealed with a sealant to provide a hermetically sealed assembly. A calcined solid frit held by a holding member is placed in the vicinity of a bond of the glass tube to the through-hole in the glass tube, and the inside of the hermetically sealed assembly is evacuated via the glass tube. A pre-set portion of the glass tube is radially compressed to form a constricted portion, with the calcined solid frit being left between the constricted portion and the opening area of the through-hole. The calcined solid frit is moved to the constricted portion of the glass tube.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Sony Corporation
    Inventor: Akira Nakayama
  • Patent number: 5686509
    Abstract: An adhesion-reinforcing composition for an epoxy resin adhesive which comprises a copolymer resin particle having been ion-crosslinked with a univalent or divalent metal cation, which particle is comprised of (i) a core ingredient composed of a polymer comprising diene monomer units and optional crosslinking monomer units and having a glass transition temperature not higher than -30.degree. C. and (ii) a shell ingredient composed of a copolymer having a glass transition temperature of at least 70.degree. C. and comprising acrylate or methacrylate monomer units and 0.01-20 wt. parts, per 100 wt. parts of the shell ingredient, of units of a radically polymerizable unsaturated carboxylic acid monomer having a carboxyl group and 3-8 carbon atoms; the core/shell weight ratio being 5/1-1/4. A composition comprising 100 wt. parts of an epoxy resin, 15-60 wt.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: November 11, 1997
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Akira Nakayama, Toshio Nagase, Tadashi Ashida, Masahiko Ohnishi
  • Patent number: 5637179
    Abstract: A process for adhesion using an epoxy rein adhesive composition which comprises coating surfaces for adhesion with a two component epoxy resin adhesive composition prepared immediately before the coating by mixing a mixture containing (A) resin powder prepared by ionic crosslinking of resin particles by addition of a metal cation and (B) an epoxy resin with (C) a curing agent of a room temperature curing type for epoxy resins, bringing the coated surfaces for adhesion into contact with each other, and subsequently heating the surfaces for adhesion. The resin particle is constituted with (a) a core formed with a (meth)acrylate polymer and/or a diene polymer which has a glass transition temperature of -30.degree. C. or lower and (b) a shell formed with a copolymer of a (meth)acrylate monomer and a radical polymerizable unsaturated carboxylic acid monomer having carboxyl group and 3 to 8 carbon atoms which has a glass transition temperature of 70.degree. C. or higher.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: June 10, 1997
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Akira Nakayama, Toshio Nagase
  • Patent number: 5503912
    Abstract: A coating film which can sufficiently improve the wear resistance of a cutting tool or a wear-resistant tool and which reveals excellent qualities as a wear-resistant or protective film for an electric or electronic part or a sliding or machine part. Such a coating film is in the form of an ultra-thin film laminate comprising at least one nitride or carbonitride of at least one element selected from the group consisting of the elements in the groups IVa, Va and VIa in the periodic table and Al and B and having a cubic crystal structure and having mainly metallic bonding properties, and at least one compound having a crystal structure other than the cubic crystal structure at normal temperature and normal pressure and under equilibrium state and having mainly covalent bonding properties, the at least one nitride or carbonitride and the compound being alternately laminated in the form of layers, each layer of the compound having a thickness of 0.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: April 2, 1996
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Makoto Setoyama, Motoyuki Tanaka, Akira Nakayama, Takashi Yoshioka, Yasuhisa Hashimoto, Kazuo Yamagata, Mitsunori Kobayashi
  • Patent number: 5496713
    Abstract: A human growth hormone having a molecular weight of 20,000 daltons can be effectively secreted and produced in the periplasm of Escherichia coli by constructing a human growth hormone secretion plasmid comprising a vector DNA replicable in E. coli and a DNA fragment including a promoter, a ribosome binding site, a secretion signal coding region, which are all those of the neutral protease gene of B. amyloliquefaciens and a gene encoding 20 kD hGH placed just downstream from the secretion signal coding region; introducing the said plasmid into E. coli; and culturing the resultant transformed cells.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: March 5, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Masaru Honjo, Setsuo Yoshino, Akira Nakayama, Naokazu Naito
  • Patent number: 5478634
    Abstract: A coating film which can sufficiently improve the wear resistance of a cutting tool or a wear-resistant tool and which reveals excellent qualities as a wear-resistant or protective film for an electric or electronic part or a sliding or machine part. Such a coating film is in the form of an ultra-thin film laminate comprising at least one nitride or carbonitride of at least one element selected from the group consisting of the elements in the groups IVa, Va and VIa in the periodic table and Al and B and having a cubic crystal structure and having mainly metallic bonding properties, and at least one compound having a crystal structure other than the cubic crystal structure at normal temperature and normal pressure and under equilibrium state and having mainly covalent bonding properties, the at least one nitride or carbonitride and the compound being alternately laminated in the form of layers, each layer of the compound having a thickness of 0.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: December 26, 1995
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Makoto Setoyama, Motoyuki Tanaka, Akira Nakayama, Takashi Yoshida, Yasuhisa Hashimoto, Kazuo Yamagata, Mitsunori Kobayashi
  • Patent number: 5316804
    Abstract: There can be provided a novel and useful process for the synthesis of hard boron nitride consisting essentially of single phase cubic boron nitride by a gaseous phase synthesis technique, which comprises adding a F atom-containing gas to the gaseous phase or adding a F atom-containing gas and H atom-containing gas to the gaseous phase, whereby the codeposited hexagonal boron nitride can selectively be etched and hard boron nitride of substantially single phase can finally be synthesized.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: May 31, 1994
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tadashi Tomikawa, Nobuhiko Fujita, Shyoji Nakagama, Akira Nakayama
  • Patent number: 5298542
    Abstract: An acrylic ester copolymer plastisol composition comprises (A) copolymer particles comprising, as the major components thereof, (a) 98 to 50 weight % of an alkyl acrylate unit having an alkyl group of 1 to 8 carbon atoms and/or an alkyl methacrylate unit having an alkyl group of 1 to 8 carbon atoms and (b) 2 to 50 weight % of a diene monomer unit, (B) a plasticizer and, optionally, (C) a vulcanizing agent. Another acrylic ester copolymer plastisol composition comprises (A) copolymer particles comprising an ionic crosslinked copolymer prepared by ionic crosslinking of a copolymer comprising, as the major components thereof, (a) 97 to 50 weight % of an alkyl acrylate unit having an alkyl group of 1 to 8 carbon atoms and/or an alkyl methacrylate unit having an alkyl group of 1 to 8 carbon atoms, (b) 2 to 40 weight % of a diene monomer unit and (c) 1 to 20 weight % of a radical polymerizable unsaturated carboxylic acid unit of 3 to 8 carbon atoms having a carboxyl group and (B) a plasticizer.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: March 29, 1994
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Eitaro Nakamura, Toshio Nagase, Akira Nakayama, Yutaka Kagoshima, Atsushi Tsukamoto
  • Patent number: 5290857
    Abstract: An epoxy resin adhesive composition has excellent adhesive properties such as impact resistance, tensile shear strength and T-peel strength as well as excellent semi-gelling property. An epoxy resin adhesive composition comprising ionic crosslinking in a polymer utilized as the impact resistance modifier has not only excellent semi-gelling property and mechanical properties of cured products but also excellent storage stability for a long time and it is advantageously utilized when the application occasionally requires storage or standing of the material for one month to one year at the room temperature. The epoxy resin adhesive composition comprises an epoxy resin, a powder core/shell polymer and a heat activation type hardener for epoxy resins. The powder core/shell polymer is composed of a core comprising an acrylate polymer or a methacrylate polymer having a glass transition temperature of -30.degree. C.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: March 1, 1994
    Assignees: Nippon Zeon Co., Ltd., Nissan Motor Co., Ltd.
    Inventors: Tadashi Ashida, Masahiko Ohnishi, Toshio Nagase, Akira Nakayama
  • Patent number: 5223766
    Abstract: A thin type image display device for displaying an image by emitting light from a fluorescer with irradiation of electron beams thereto. The device has a cathode panel between a front panel and a back panel in such a manner that a space is existent between the cathode panel and the back panel, wherein through holes for diffusion of getters are formed in the cathode panel to maintain the image quality at the center of a display screen, or the cathode panel is supported by getters to maintain a required pressure, hence attaining a higher image quality even on a large-sized display screen. A gate electrode may be composed of a getter material.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: June 29, 1993
    Assignee: Sony Corporation
    Inventors: Akira Nakayama, Junichi Inoue, Masanobu Yamamoto
  • Patent number: 5220240
    Abstract: A planar display apparatus with a fluorescent screen formed on the inner surface of a front panel in a planar tube body. An electron gun is disposed at a position deviated in a vertical scanning direction from a region opposite the fluorescent screen, and a vertical deflecting electrode composed of a plurality of parallel electrodes is disposed at an opposite portion relative to the fluorescent screen on the side of a back panel opposed to the front panel of the planar tube body. In a space between the vertical deflecting electrode and the fluorescent screen, there is disposed an electrode structure having at least an electron lens scanning electrode composed of a plurality of parallel electrodes, a splitting electrode for splitting an electron beam from the electron gun into a plurality of beams, a modulating electrode, and horizontal deflection electrodes.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: June 15, 1993
    Assignee: Sony Corporation
    Inventors: Toshio Ohoshi, Akira Nakayama, Junichi Inoue, Masaru Yamaguchi
  • Patent number: 5166318
    Abstract: Modified HV1-type hirudinin which valine at the N-terminal end of the HV1-type hirudin and aspartic acid at the 5th residue of the N-terminal end were replaced with alanine and glutamic acid, respectively. A secretion plasmid into which a DNA sequence coding for a precursor with an addition of a secretion signal of neutral protease of Bacillus amyloliquefaciens at the N-terminal end of this modified HV1-type hirudin is integrated is introduced into bacteria of the genus Bacillus and the precursor is expressed intracellularly. The modified HV1-type hirudin can be efficiently secreted extracellularly while maintaining its high thrombin inhibiting activity.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: November 24, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Yoshio Furutani, Masaru Honjo, Akira Nakayama, Koichi Kawamura, Kazunori Ando, Michiko Hori, Keiko Fukazawa
  • Patent number: 5096740
    Abstract: A highly pure cubic boron nitride film is formed on a substrate by a method which comprises irradiating an excimer laser on a target comprising boron atoms and optionally nitrogen atom and depositing cubic boron nitride on a substrate which is placed to face the target.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: March 17, 1992
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Syoji Nakagama, Nobuhiko Fujita, Naohiro Toda, Akira Nakayama
  • Patent number: 5090161
    Abstract: In production of a curved-toothed bevel gear, an amount of deformation of a bottom land of each of gear teeth caused by heat treatment is assumed. The gear teeth are generated so that a bottom land of each of the teeth is of such a shape for compensating for the deformation.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 25, 1992
    Assignee: Nissan Motor Company, Ltd.
    Inventor: Akira Nakayama