Patents by Inventor Masao Nakamura

Masao Nakamura 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: 6734694
    Abstract: The apparatus 10 includes a tray 22 for holding a semiconductor device 18, an inspection connector 30 for automatically coupling to a connector 16 of the device 18, a probe 32 for supplying or receiving signals to or from terminals 14A of a device body 14 being in contact with each other, an inspection robot 36 for picking up the body 14 held in the tray and transporting it to the probe to get contact with or close to; a controller 66 to control the robot 36, and a tester 34 to test the device 18 by supplying input signals to one of the connector 30 or the probe 32 and receiving output signals from the other.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: May 11, 2004
    Assignee: Juki Corporation
    Inventors: Tsukasa Tauchi, Yuzi Yamamoto, Masami Miyasako, Kiyoshi Kinoshita, Mitsuhiro Yoshihira, Masao Nakamura
  • Publication number: 20040077814
    Abstract: A conjugated diene rubber gel comprising 80-99 weight % of conjugated diene monomer units and 20-1 weight % of aromatic vinyl monomer units and having a swelling index of 16 to 70 as measured in toluene. A rubber vulcanizate made from a rubber composition comprising this conjugated diene rubber gel and a rubber capable of being crosslinked with sulfur exhibits good abrasion resistance and low heat-build up without deterioration of mechanical properties, and thus, is suitable for tire materials. This conjugated diene rubber gel can be produced with high efficiency by emulsion-polymerization of a monomer mixture comprising 50-99.9 weight % of a conjugated diene monomer, 0-30 weight % of an aromatic vinyl monomer, 0-20 weight % of a crosslinking monomer.
    Type: Application
    Filed: August 29, 2003
    Publication date: April 22, 2004
    Applicant: ZEON CORPORATION
    Inventors: Masao Nakamura, Koichi Endo
  • Patent number: 6649724
    Abstract: A conjugated diene rubber gel comprising 80-99 weight % of conjugated diene monomer units and 20-1 weight % of aromatic vinyl monomer units and having a swelling index of 16 to 70 as measured in toluene. A rubber vulcanizate made from a rubber composition comprising this conjugated diene rubber gel and a rubber capable of being crosslinked with sulfur exhibits good abrasion resistance and low heat-build up without deterioration of mechanical properties, and thus, is suitable for tire materials. This conjugated diene rubber gel can be produced with high efficiency by emulsion-polymerization of a monomer mixture comprising 50-99.9 weight % of a conjugated diene monomer, 0-30 weight % of an aromatic vinyl monomer, 0-20 weight % of other ethylenically unsaturated monomer and 0.1-20 weight % of a crosslinking monomer.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: November 18, 2003
    Assignee: Zeon Corporation
    Inventors: Masao Nakamura, Koichi Endo
  • Patent number: 6647509
    Abstract: A network system includes a plurality of networks, a first internetwork apparatus having a plurality of first ports each connected to the plurality of networks, a second internetwork apparatus having a plurality of second ports each connected to the plurality of networks, and a data transmission path connected to the first and second internetwork apparatuses to transmit data mutually between the first and second internetwork apparatuses. In the normal state, each of the plurality of first ports is caused to be able to transmit and receive data to and from one of the plurality of networks and the plurality of second ports are caused not to be able to receive data from the plurality of networks and to be able to transmit data to the plurality of networks.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: November 11, 2003
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System Ltd.
    Inventors: Shinya Ichinohe, Norihide Noyama, Tokuhiro Niwa, Masao Nakamura
  • Patent number: 6646040
    Abstract: The present invention relates to an intermediate transfer member having a polyimide resin film containing oxidized carbon black; and an image forming apparatus comprising an intermediate transfer member having a polyimide resin film containing oxidized carbon black.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 11, 2003
    Assignees: Fuji Xerox Co., Ltd., Nitto Denko Corporation
    Inventors: Yukio Hara, Masao Nakamura, Toshihiko Tomita
  • Patent number: 6642315
    Abstract: A rubber composition containing (A) a sulfur cross-linkable rubber and (B) a conjugated diene-based rubber gel, having a toluene swelling index of 16 to 70, comprising 40 to 75% by weight of conjugated diene monomer units and 60 to 25% by weight of aromatic vinyl monomer units.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: November 4, 2003
    Assignees: The Yokohama Rubber Co., Ltd., Zeon Corporation
    Inventors: Naoya Amino, Masao Nakamura, Koichi Endo
  • Patent number: 6641763
    Abstract: A forming method for a fiber aggregate in which fibers are heated to be welded with each other includes a heating step of applying upward heated air to a bottom of a block of the fibers to pass the heated air therethrough and to cause the block of fibers to float, wherein at least parts of fibers are melted while the block of fibers float, and a compression step of compressing substantially in a vertical direction the heated block of fibers into a desired height. The compressed block of fibers is cooled to solidify melted portions of the fibers at portions where the fibers intersect with each other.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: November 4, 2003
    Assignees: Inoac Corporation, Canon Kabushiki Kaisha
    Inventors: Masao Nakamura, Tetsuya Hase, Haruo Morita, Hajime Yamamoto, Eiichiro Shimizu, Kenta Udagawa, Kenji Kitabatake
  • Publication number: 20030155639
    Abstract: The present invention provides a solid-state imaging device comprising: a transparent substrate transmitting light therethrough; a first chip including a solid-state imaging element having a light receiving portion; a first resin providing airtight sealing between the first chip and the transparent substrate; a second chip opposite to the transparent substrate with respect to the first chip; and second resin die bonding the second chip to the first chip, wherein the first resin and the second resin are made of the same material.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 21, 2003
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masao Nakamura, Kazumasa Doi, Kouji Shidahara
  • Publication number: 20030139523
    Abstract: A conjugated diene rubber gel comprising 80-99 weight % of conjugated diene monomer units and 20-1 weight % of aromatic vinyl monomer units and having a swelling index of 16 to 70 as measured in toluene. A rubber vulcanizate made from a rubber composition comprising this conjugated diene rubber gel and a rubber capable of being crosslinked with sulfur exhibits good abrasion resistance and low heat-build up without deterioration of mechanical properties, and thus, is suitable for tire materials. This conjugated diene rubber gel can be produced with high efficiency by emulsion-polymerization of a monomer mixture comprising 50-99.9 weight % of a conjugated diene monomer, 0-30 weight % of an aromatic vinyl monomer, 0-20 weight % of other ethylenically unsaturated monomer and 0.
    Type: Application
    Filed: February 10, 2003
    Publication date: July 24, 2003
    Inventors: Masao Nakamura, Koichi Endo
  • Publication number: 20030128442
    Abstract: In a process of producing an image pickup device, a solid-state image pickup element is joined to a transparent substrate, with its light-receiving surface opposed to the transparent substrate, and sealed with a thermosetting resin. A peripheral IC chip is bonded to a surface of the image pickup element opposite from the light-receiving surface. The image pickup element and peripheral IC chip are inserted into a through hole of a printed circuit board, and the transparent substrate is connected to the printed circuit board, which is then connected to the peripheral IC chip through wires. The wires, the image pickup element and the peripheral IC chip are sealed with a coat resin. A lens holder is fitted to the printed circuit board and a surface of the transparent substrate opposed from the surface joined with the image pickup element, using side surfaces of the transparent substrate as reference planes.
    Type: Application
    Filed: February 1, 2002
    Publication date: July 10, 2003
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Fujio Tanaka, Masao Nakamura
  • Publication number: 20030125461
    Abstract: A rubber composition comprising (i) an incompatible polymer blend of at least two diene rubbers selected from rubbers containing a conjugated diene and, optionally, an aromatic vinyl monomer and forming two polymer phases (A) and (B), and (ii) 0.1 to 20 parts by weight, based upon 100 parts by weight of the total polymer component including the block copolymer, of a block copolymer having at least two mutually incompatible blocks (a) and (b), wherein the block (a) is compatible with the polymer phase (A) and incompatible with the polymer phase (B) and the block (b) is compatible with the polymer phase (B) and incompatible with the polymer phase (A), and composed of a conjugated diene and, optionally, an aromatic vinyl monomer, and wherein the molecular weights of the polymers forming the polymer phases (A) and (B) satisfy the specified equations (I) and (II) mentioned in the specification.
    Type: Application
    Filed: January 3, 2003
    Publication date: July 3, 2003
    Applicant: The Yokohama Rubber Co., Ltd.
    Inventors: Tetsuji Kawazura, Masayuki Kawazoe, Masao Nakamura
  • Publication number: 20030119968
    Abstract: The present invention relates to an intermediate transfer member having a polyimide resin film containing oxidized carbon black; and an image forming apparatus comprising an intermediate transfer member having a polyimide resin film containing oxidized carbon black.
    Type: Application
    Filed: January 9, 2003
    Publication date: June 26, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yukio Hara, Masao Nakamura, Toshihiko Tomita
  • Publication number: 20030093559
    Abstract: A network system includes a plurality of networks, a first internetwork apparatus having a plurality of first ports each connected to the plurality of networks, a second internetwork apparatus having a plurality of second ports each connected to the plurality of networks, and a data transmission path connected to the first and second internetwork apparatuses to transmit data mutually between the first and second internetwork apparatuses. In the normal state, each of the plurality of first ports is caused to be able to transmit and receive data to and from one of the plurality of networks and the plurality of second ports are caused not to be able to receive data from the plurality of networks and to be able to transmit data to the plurality of networks.
    Type: Application
    Filed: December 24, 2002
    Publication date: May 15, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Shinya Ichinohe, Norihide Noyama, Tokuhiro Niwa, Masao Nakamura
  • Publication number: 20030055169
    Abstract: A rubber composition containing (A) a sulfur cross-linkable rubber and (B) a conjugated diene-based rubber gel, having a toluene swelling index of 16 to 70, comprising 40 to 75% by weight of conjugated diene monomer units and 60 to 25% by weight of aromatic vinyl monomer units.
    Type: Application
    Filed: March 29, 2002
    Publication date: March 20, 2003
    Inventors: Naoya Amino, Masao Nakamura, Koichi Endo
  • Patent number: 6505311
    Abstract: A network system has a plurality of networks. A first internetwork apparatus has a plurality of first ports each connected to the plurality of networks and a second internetwork apparatus has a plurality of second ports each connected to the plurality of networks. A data transmission path is connected to the first and second internetwork apparatuses to transmit data therebetween. In the normal state, each of the plurality of first ports is able to transmit and receive data to and from one of the plurality of networks while the plurality of second ports are able to transmit, but not receive data from the plurality of networks. A failure occurring in one of the plurality of first ports and a route therefrom to one of the plurality of networks is detected.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: January 7, 2003
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System
    Inventors: Shinya Ichinohe, Norihide Noyama, Tokuhiro Niwa, Masao Nakamura
  • Patent number: 6486258
    Abstract: A conjugated diene rubber composition for tires comprising (I) 2-100 weight parts of a high-cis conjugated diene polymer rubber, which is a polymer of conjugated diene monomer alone or with a copolymerizable monomer, and has a cis-bond unit content of at least 40% in the conjugated diene monomer units, and a weight average molecular weight (Mw) of 20,000-10,000,000, and in which the ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) and the weight average molecular weight (Mw) satisfy the formula: log(Mw/Mn)<0.162×log(Mw)−0.682, and (II) 0-98 weight parts of other polymer rubber. A tire comprising at least a tread composed of the above-mentioned conjugated diene rubber composition has very high rebound resilience.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: November 26, 2002
    Assignee: Zeon Corporation
    Inventors: Koukichi Noguchi, Takahiko Fukahori, Masao Nakamura
  • Patent number: 6483652
    Abstract: A method for producing a solid-state imaging device includes: a first step of mounting a solid-state imaging element on a transparent substrate having a first surface and a second surface opposite to the first surface such that a light receiving surface of the solid-state imaging element is substantially parallel to the first surface and faces the second surface; and a second step of forming a lens holder on the first surface, the lens holder having a lens mounting surface substantially parallel to the first surface.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: November 19, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masao Nakamura
  • Patent number: 6472761
    Abstract: An object of the present invention is to provide a solid-state image pickup apparatus capable of reducing man-hours for bonding, improving bonding quality, and being readily integrated into peripheral devices, and a manufacturing method thereof. The solid-state image pickup apparatus of the present invention includes a transparent substrate having a projecting electrode connection electrode terminal, and a solid-state image pickup device in which each first projecting electrode corresponding to the projecting electrode connection electrode terminal is formed on each electric signal I/O terminal, the transparent substrate and the solid-state image pickup device being bonded by face-down packaging. The projecting electrode connection electrode terminal and each first projecting electrode are connected by ultrasonic bonding. On electrode terminals of the transparent substrate are respectively formed second projecting electrodes.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 29, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masao Nakamura
  • Publication number: 20020143106
    Abstract: A rubber composition comprising (i) an incompatible polymer blend of at least two diene rubbers selected from rubbers containing a conjugated diene and, optionally, an aromatic vinyl monomer and forming two polymer phases (A) and (B), and (ii) 0.1 to 20 parts by weight, based upon 100 parts by weight of the total polymer component including the block copolymer, of a block copolymer having at least two mutually incompatible blocks (a) and (b), wherein the block (a) is compatible with the polymer phase (A) and incompatible with the polymer phase (B) and the block (b) is compatible with the polymer phase (B) and incompatible with the polymer phase (A), and composed of a conjugated diene and, optionally, an aromatic vinyl monomer, and wherein the molecular weights of the polymers forming the polymer phases (A) and (B) satisfy the specified equations (I) and (II) mentioned in the specification.
    Type: Application
    Filed: February 18, 2000
    Publication date: October 3, 2002
    Inventors: Tetsuji Kawazura, Masayuki Kawazoe, Masao Nakamura
  • Publication number: 20020130654
    Abstract: The apparatus 10 includes a tray 22 for holding a semiconductor device 18, an inspection connector 30 for automatically coupling to a connector 16 of the device 18, a probe 32 for supplying or receiving signals to or from terminals 14A of a device body 14 being in contact with each other, an inspection robot 36 for picking up the body 14 held in the tray and transporting it to the probe to get contact with or close to; a controller 66 to control the robot 36, and a tester 34 to test the device 18 by supplying input signals to one of the connector 30 or the probe 32 and receiving output signals from the other.
    Type: Application
    Filed: March 5, 2002
    Publication date: September 19, 2002
    Applicant: JUKI CORPORATION
    Inventors: Tsukasa Tauchi, Yuzi Yamamoto, Masami Miyasako, Kiyoshi Kinoshita, Mitsuhiro Yoshihira, Masao Nakamura