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).

  • Publication number: 20090149578
    Abstract: A comprising conjugated diene monomer units, and at least one polymer block B comprising conjugated diene monomer units and aromatic vinyl monomer units. This block copolymer is characterized in that (1) the polymer block A has a glass transition temperature of ?88° C. to ?45° C., (2) the polymer block B has a glass transition temperature of 30° C. to 90° C., (3) the content of aromatic vinyl monomer units in the whole block copolymer is 3-52 wt. %, (4) the aromatic vinyl block ratio in the whole block copolymer is smaller than 69 wt. %, and (5) the viscosity of a 5 wt. % solution of the block copolymer in styrene is 30-80 mPa·s. The block copolymer is useful as a resin modifier.
    Type: Application
    Filed: July 27, 2006
    Publication date: June 11, 2009
    Inventors: Masao Nakamura, Kazuya Ito, Hidenori Yamagishi
  • Publication number: 20090141165
    Abstract: In a solid-state image pickup apparatus 100 of the invention, a transparent member 4 that covers a light receiving section of a solid-state image sensing device 2 is located within an opening 10 of a wiring board 1. The solid-state image sensing device 2 is adhered to the backside of the wiring board 1 via a conductive member 5 and also sealed to the backside of the wiring board 1 with an encapsulation resin 6 formed around the solid-state image sensing device 2. Furthermore, a through-hole 11 passing through the wiring board 1 in a thickness direction is formed on outside of the opening 10 of the wiring board 1, and the through-hole 11 is filled with the encapsulation resin 6. This configuration provides the solid-state image pickup apparatus 100 in which the encapsulation resin 6 can be easily injected to the surrounding area of the solid-state image sensing device 2.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Masao Nakamura
  • Publication number: 20080275184
    Abstract: A conjugated diene rubber composition comprising (A) 5-95 wt. % of a conjugated diene rubber having a structure such that at least three conjugated diene polymer chains are bonded together through a specific polyorganosiloxane having groups containing alkylene glycol repeating units and (B) 95-5 wt. % of a conjugated diene rubber having reacted with a compound having in the molecule a functional group selected from >C?O, >C?S, amino, imino, epoxy, pyridyl, alkoxyl and halogeno. This rubber composition gives, when silica is incorporated therein, a vulcanizable rubber composition having good processability and giving a rubber vulcanizate exhibiting sufficiently reduced heat build up, and having good wet-grip property and good abrasion resistance.
    Type: Application
    Filed: September 1, 2004
    Publication date: November 6, 2008
    Inventors: Takeshi Karato, Masao Nakamura, Koichi Endo
  • Publication number: 20080242832
    Abstract: The present invention provides a semi-conductive polyimide film having: a common logarithm of a surface resistivity at 25° C. and 60% RH of 9 to 15 log ?/square; a common logarithm of a volume resistivity of 8 to 15 log ?·cm; a fatigue stress in accordance with a fatigue test complying with JIS K7118, upon a number of repetition being 107, of 160 MPa or more; and a number of durable bending in accordance with an MIT test complying with JIS P8115 of 2,000 times or more, and an intermediate transfer belt and an transfer transportation belt using the semi-conductive polyimide film.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Applicant: Nitto Denko Corporation
    Inventors: Masao Nakamura, Masahiro Kanbayashi, Yoshio Oota
  • Publication number: 20080137807
    Abstract: In a method for checking for leakage from tubular batteries, when tubular batteries (Ba) are fed with their respective axial centers aligned in parallel to each other to pass through a leakage check mechanism (12), a sealed end face (33) of the tubular batteries (Ba) is irradiated with an X-ray (34). A fluorescent X-ray (40) coming out of the sealed end face (33) is incident upon a detector (39) through a detection window (35). In accordance with the result of analysis on whether the incident fluorescent X-ray (40) contains a fluorescent X-ray (40) associated with an electrolyte component, it is determined whether leakage has occurred from the tubular batteries (Ba). A length (L1, L3, L5) of the detection window (35) in a direction of feed of the tubular batteries (Ba) is set to be less than a spacing (C1, C2) between the tubular batteries (Ba).
    Type: Application
    Filed: November 24, 2005
    Publication date: June 12, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hironori Yukisada, Takahito Takahashi, Masao Nakamura, Kazutoshi Okubo, Masaya Nakata
  • Publication number: 20070167555
    Abstract: A rubber composition containing (i) a conjugated diene-based rubber gel having a toluene swelling index of 16 to 70, (ii) a diene-based rubber such as natural rubber, polyisoprene rubber, aromatic vinyl-conjugated diene copolymer rubber and/or polybutadiene rubber, and (iii) an optional carbon black and/or silica and (a) a pneumatic tire using this composition as a high hardness reinforcing layer extending from a bead along a tire sidewalls, in which the fluidity and dimensional stability at the time of extrusion are improved, while maintaining a sufficient hardness of a high hardness reinforced rubber, (b) a pneumatic tire using this composition as two ends of a tire tread extrudate, maintaining a flex fatigue of the two ends of the tread, in which the extrudability and extrusion dimensional stability are improved and (c) a pneumatic tire using the composition as a 1.
    Type: Application
    Filed: February 22, 2005
    Publication date: July 19, 2007
    Applicants: The Yokohama Rubber Co., Ltd., Zeon Corporation
    Inventors: Naoya Amino, Misao Hiza, Takashi Shirokawa, Masao Nakamura, Koichi Endo
  • Patent number: 7243258
    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: October 10, 2003
    Date of Patent: July 10, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Shinya Ichinohe, Norihide Noyama, Tokuhiro Niwa, Masao Nakamura
  • Patent number: 7241842
    Abstract: A conjugated diene rubber obtained by a process wherein active conjugated diene polymer chains each having an active metal at a polymer chain terminal, which have been obtained by polymerizing a conjugated diene monomer alone, or a conjugated diene monomer and an aromatic vinyl monomer with the aid of an organic active metal in an inert solvent, are allowed to react with a specific polyorganosiloxane capable of reacting with the active metal bonded to the polymer chain terminal. The conjugated diene rubber contains at least 5% by weight of a structure comprising at least three conjugated diene polymer chains bonded through a polyorganosiloxane. The conjugated diene rubber gives, when silica is incorporated therein, a rubber composition having good processability and giving a crosslinked rubber having reduced heat build-up, good wet grip performance and good abrasion resistance.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: July 10, 2007
    Assignee: Zeon Corporation
    Inventors: Masao Nakamura, Masaaki Komatsu, Kouji Shouya, Kiyonori Umetsu, Takeshi Karato, Takahiko Fukahori
  • Patent number: 7242433
    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: Grant
    Filed: February 1, 2002
    Date of Patent: July 10, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fujio Tanaka, Masao Nakamura
  • Patent number: 7094855
    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: Grant
    Filed: January 18, 2005
    Date of Patent: August 22, 2006
    Assignee: Zeon Corporation
    Inventors: Masao Nakamura, Koichi Endo
  • Publication number: 20060155076
    Abstract: A conjugated diene rubber obtained by a process wherein active conjugated diene polymer chains each having an active metal at a polymer chain terminal, which have been obtained by polymerizing a conjugated diene monomer alone, or a conjugated diene monomer and an aromatic vinyl monomer with the aid of an organic active metal in an inert solvent, are allowed to react with a specific polyorganosiloxane capable of reacting with the active metal bonded to the polymer chain terminal. The conjugated diene rubber contains at least 5% by weight of a structure comprising at least three conjugated diene polymer chains bonded through a polyorganosiloxane. The conjugated diene rubber gives, when silica is incorporated therein, a rubber composition having good processability and giving a crosslinked rubber having reduced heat build-up, good wet grip performance and good abrasion resistance.
    Type: Application
    Filed: June 2, 2003
    Publication date: July 13, 2006
    Applicant: Zeon Corporation
    Inventors: Masao Nakamura, Masaaki Komatsu, Kouji Shouya, Kiyonori Umetsu, Takeshi Karato, Takahiko Fukahori
  • Publication number: 20060124610
    Abstract: A spot welding apparatus capable of detecting a defect such as a missing of works or a bite of a foreign substance reliably before a welding operation. A spot welding method for welding superposed works (6) which are clamped and pressed between a stationary electrode (3) and a movable electrode (4) and are fed an electric power between the electrodes (3) and (4).
    Type: Application
    Filed: May 21, 2004
    Publication date: June 15, 2006
    Inventor: Masao Nakamura
  • Patent number: 6927255
    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: Grant
    Filed: February 18, 2000
    Date of Patent: August 9, 2005
    Assignees: The Yokohama Rubber Co., Ltd., Nippon Zeon Co., Ltd.
    Inventors: Tetsuji Kawazura, Masayuki Kawazoe, Masao Nakamura
  • Publication number: 20050124760
    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: January 18, 2005
    Publication date: June 9, 2005
    Inventors: Masao Nakamura, Koichi Endo
  • Patent number: 6897279
    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: Grant
    Filed: August 29, 2003
    Date of Patent: May 24, 2005
    Assignee: Zeon Corporation
    Inventors: Masao Nakamura, Koichi Endo
  • Publication number: 20050076374
    Abstract: A data transmission apparatus includes a power supply unit that outputs a first power, a second power and a third power, a communication unit that is driven by the first power and executes data transmission between an external network and a local network to which a plurality of terminals are connected, a first receiving unit that is driven by the second power and receives broadcast data in response to a broadcast data reception request from each of the terminals, a second receiving unit that is driven by the third power and receives content data from an external device in response to a content data reception request from each of the terminals, and a unit configured to control the power supply unit based on states of use of the first and second receiving units to individually power on/off the first and second receiving units while the communication unit is powered on.
    Type: Application
    Filed: June 29, 2004
    Publication date: April 7, 2005
    Inventor: Masao Nakamura
  • Publication number: 20050076375
    Abstract: According to one embodiment of the invention, a data transmission apparatus is adapted with a function for receiving broadcast data in response to a request from a terminal and for controlling a supply of power to different units of the data transmission apparatus. The data transmission apparatus comprises a power supply unit, a first receiving unit, a second receiving unit and a communication unit to support communications between an external network and a local network including a plurality of terminals. The data transmission apparatus further comprises a system control unit and optionally a power supply control unit for controlling the power supply unit based on states of use of the first receiving unit and the second receiving unit by individually powering on/off the first receiving unit and the second receiving unit while the communication unit is powered on.
    Type: Application
    Filed: August 20, 2004
    Publication date: April 7, 2005
    Inventor: Masao Nakamura
  • Publication number: 20050076231
    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: October 10, 2003
    Publication date: April 7, 2005
    Inventors: Shinya Ichinohe, Norihide Noyama, Tokuhiro Niwa, Masao Nakamura
  • Patent number: 6873034
    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: Grant
    Filed: February 19, 2003
    Date of Patent: March 29, 2005
    Assignees: Sharp Kabushiki Kaisha, Sun-S Co. Ltd.
    Inventors: Masao Nakamura, Kazumasa Doi, Kouji Shidahara
  • Patent number: 6820738
    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: January 9, 2003
    Date of Patent: November 23, 2004
    Assignees: Fuji Xerox Co., Ltd., Nitto Denko Corporation
    Inventors: Yukio Hara, Masao Nakamura, Toshihiko Tomita