Patents by Inventor Jun Okumura

Jun Okumura 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: 11958219
    Abstract: The present disclosure provides a foam molded product and a manufacturing method. The foam molded product is includes a foam body, an insert material having a display unit or a detection unit attached to the foam body, and a surface material affixed to a surface to which at least the insert material is attached. A manufacturing method includes: preparing a pair of molds including a first mold and a second mold; affixing an insert material and a surface material together such that the surface material is in contact with a molding surface of the first mold; closing the pair of molds; injecting a foam resin into a molding space formed by closing the molds; foaming the foam resin to form a foam body; opening the pair of molds; and removing a molded product in which the affixed part and the foam body are integrated.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 16, 2024
    Assignee: NISSHA CO., LTD.
    Inventors: Tatsuo Ito, Kenji Okumura, Jun Sasaki, Daichi Hama, Masaru Terashita
  • Patent number: 10780351
    Abstract: An information processing device comprises a representation learning unit for learning characteristic vectors representing the various characteristics of objects, on the basis of a game log, which is game progress history related to an electronic game in which a plurality of objects are used and which comprises information about the game situation including information about objects that affect the game, information about objects used in said situation from among said objects, and information indicating the effect on the game arising from the use of said objects, wherein the characteristic vectors are found by performing learning using a combination of information about the effect on the game and information obtained by excluding the information about at least one of the objects from the information about the game situation.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 22, 2020
    Assignee: DeNA Co., Ltd.
    Inventors: Jun Okumura, Yu Kono, Ikki Tanaka
  • Publication number: 20190336862
    Abstract: An information processing device comprises a representation learning unit for learning characteristic vectors representing the various characteristics of objects, on the basis of a game log, which is game progress history related to an electronic game in which a plurality of objects are used and which comprises information about the game situation including information about objects that affect the game, information about objects used in said situation from among said objects, and information indicating the effect on the game arising from the use of said objects, wherein the characteristic vectors are found by performing learning using a combination of information about the effect on the game and information obtained by excluding the information about at least one of the objects from the information about the game situation.
    Type: Application
    Filed: December 27, 2018
    Publication date: November 7, 2019
    Inventors: Jun OKUMURA, Yu KONO, Ikki TANAKA
  • Publication number: 20110224071
    Abstract: The outer-peripheral coating material of the present invention contains a filler containing a laser-coloring powder containing at least one member selected from the group consisting of a metal and a metal compound each developing a color which differs from the original color when irradiated with a laser beam, and a ceramic powder composed of a ceramic other than the material which constitutes the laser-coloring powder, and a dispersing medium, wherein the filler contains the laser-coloring powder in an amount of 20 to 400 parts by mass relative to 100 parts by mass of the ceramic powder.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicant: NGK Insulators, Ltd.
    Inventors: Jun OKUMURA, Suguru Kodama
  • Patent number: 7531231
    Abstract: There is disclosed a honeycomb structure which is useful as a trapping filter for an exhaust gas, above all a diesel particulate filter (DPF) for trapping particulate matters (particulates) in an exhaust gas from a diesel engine and in which internal and external temperature rises are uniformed during use and during regeneration and in which there are effectively prevented generation of defects such as cracks due to a thermal stress and generation of an adverse influence on a carried catalyst. A honeycomb structure 1 includes: a bonded honeycomb segment article 10 in which bond surfaces of a plurality of honeycomb segments 2 are integrally bonded to one another via bonding material layers 9; and an outer peripheral coating layer 4 which coats an outer peripheral surface of the bonded honeycomb segment article 10. The honeycomb structure has a structure in which a plurality of cells 5 forming fluid channels are arranged in parallel with one another in a central axis direction.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: May 12, 2009
    Assignee: NGK Insulators, Ltd.
    Inventors: Jun Okumura, Tomohiro Iida
  • Patent number: 7514136
    Abstract: A honeycomb structure includes a bonded honeycomb segment article in which a plurality of honeycomb segments are integrally bonded on mutual bonding surfaces thereof via bonding material layers; and an outer peripheral coating layer which covers an outer peripheral surface of the bonded honeycomb segment article. The honeycomb structure has a structure in which a plurality of cells constituting fluid channels are arranged in parallel with one another in a central axis direction. Solid cells are beforehand arranged in four corners of each of opposite end faces of the honeycomb segment and/or the center of each side of an outer peripheral portion of each of the opposite end faces of the honeycomb segment, and the solid cells are integrated with the honeycomb segment.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: April 7, 2009
    Assignee: NGK Insulators, Ltd.
    Inventor: Jun Okumura
  • Publication number: 20090010817
    Abstract: A honeycomb filter according to the present invention is composed of multiple segments each having a large number of through holes, which are separated from each other by porous bulkheads as running through in an axis direction of the segment, the segments bonded with each other by a bonding material. In the honeycomb filter, a heat capacity of the segments arranged in the peripheral portion is higher than that of the segments arranged in the center portion.
    Type: Application
    Filed: April 23, 2008
    Publication date: January 8, 2009
    Applicant: NGK INSULATORS, LTD.
    Inventor: Jun Okumura
  • Publication number: 20070092693
    Abstract: There is provided a honeycomb structure capable of largely inhibiting generation of a crack due to a thermal stress during use and regeneration of a collection filter for an exhaust gas, especially a diesel particulate filter (DPF) which collects particulates in the exhaust gas of a diesel engine, especially a crack (especially, a ring of crack) in an axial direction of the DPF, so that a soot deposit limit can largely be raised. The honeycomb structure includes a bonded honeycomb segment article in which a plurality of honeycomb segments 2 are integrally bonded on mutual bonding surfaces thereof via bonding material layers; and an outer peripheral coating layer which covers an outer peripheral surface of the bonded honeycomb segment article, and the honeycomb structure has a structure in which a plurality of cells constituting fluid channels are arranged in parallel with one another in a central axis direction.
    Type: Application
    Filed: October 20, 2006
    Publication date: April 26, 2007
    Applicant: NGK INSULATORS, LTD.
    Inventor: Jun Okumura
  • Patent number: 7184631
    Abstract: An optical device includes an optical input waveguide, a branch/cross waveguide, an optical output waveguide and connection waveguides that connect the optical input and optical output waveguides to the cross/branch waveguide. The spot size of light propagating through the cross/branch waveguide is larger than the spot size of light propagating through optical input waveguides, the optical output waveguides, or the connection waveguides.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: February 27, 2007
    Assignee: NGK Insulators, Ltd.
    Inventors: Osamu Mitomi, Takenori Ichigi, Masatsugu Oshima, Jun Okumura, Masataka Yamashita
  • Patent number: 7142754
    Abstract: This invention relates to a copolymer prepared by polymerizing at least a vinyl compound (A) which gives a homopolymer with a refractive index of 1.50 or more, a fluoroalkyl (meth)acrylate (B) represented by the following formula (1) and methyl methacrylate (C), wherein a weight ratio of monomer (A) component/monomer (B) component ((A)/(B)) in the copolymer is within the range of 0.2 to 1; as well as a plastic optical fiber and a plastic optical fiber cable comprising a clad made of the copolymer. This invention can provide a plastic optical fiber and a plastic optical fiber cable exhibiting a reduced transmission loss, minimizing increase in a transmission loss even when being held as a bobbin-wound form, exhibiting a reduced bend loss and can transmit a wide-band data. (In the above formula, X represents H or CH3; and Rf represents fluoroalkyl having 7 to 14 carbon atoms both inclusive and 13 to 25 fluorine atoms both inclusive.).
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: November 28, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Tsukamoto, Yasushi Kawaharada, Kikue Irie, Tetsuya Jigami, Jun Okumura, Yoshihiro Uozu
  • Publication number: 20060263573
    Abstract: There is disclosed a honeycomb structure which is useful as a trapping filter for an exhaust gas, above all a diesel particulate filter (DPF) for trapping particulate matters (particulates) in an exhaust gas from a diesel engine and in which internal and external temperature rises are uniformed during use and during regeneration and in which there are effectively prevented generation of defects such as cracks due to a thermal stress and generation of an adverse influence on a carried catalyst. A honeycomb structure 1 includes: a bonded honeycomb segment article 10 in which bond surfaces of a plurality of honeycomb segments 2 are integrally bonded to one another via bonding material layers 9; and an outer peripheral coating layer 4 which coats an outer peripheral surface of the bonded honeycomb segment article 10. The honeycomb structure has a structure in which a plurality of cells 5 forming fluid channels are arranged in parallel with one another in a central axis direction.
    Type: Application
    Filed: May 12, 2006
    Publication date: November 23, 2006
    Applicant: NGK INSULATORS, LTD.
    Inventors: Jun Okumura, Tomohiro Iida
  • Patent number: 7031582
    Abstract: Disclosed are an optical fiber cable comprising an optical fiber and at least one covering layer formed on the outer periphery of the optical fiber, at least one layer of the covering layer being made of a material comprising a resin component containing a polyamide polymer, wherein a flexural modulus E upon displacement of 1 mm is within a range from 2 to 15 (N/mm) and the optical fiber cable passes a flame resistance test in accordance with DIN 72551-5, and an optical fiber cable with a plug using the optical fiber. Therefore, they have excellent flame resistance and good handling properties.
    Type: Grant
    Filed: December 25, 2000
    Date of Patent: April 18, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Yoshimi Kamimura, Jun Okumura
  • Patent number: 6961493
    Abstract: An optical device consisting of a core layer, a first clad layer in contact with the core layer, a second clad layer, third clad layer and at least one electrode for applying a certain voltage or supplying a certain current. The second clad layer is deposited on the third clad layer and the core layer is provided between the first clad layer and the second clad layer. The core layer, first clad layer, second clad layer and third clad layer consist of a material with a negative refractive index variation coefficient, and the third clad layer has a refractive index smaller than that of the second clad layer.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: November 1, 2005
    Assignee: NGK Insulators, Ltd.
    Inventors: Osamu Mitomi, Takenori Ichigi, Masatsugu Oshima, Jun Okumura, Kenji Aoki, Masataka Yamashita
  • Publication number: 20050147368
    Abstract: The present invention relates to a production method of a plastic optical fiber which comprises the steps of heat drawing an undrawn plastic optical fiber obtained by melt spinning and annealing the drawn fiber at a circumferential velocity ratio between the front and rear rollers (circumferential velocity of a rear roller/circumferential velocity of a front roller) of 0.5 to 1.2 under heating conditions which satisfy 4?y?1.5x+330 and (Tgc?5)° C.?x?(Tgc+110)° C. [Tgc: a glass transition temperature of a core, x: an annealing temperature (° C.), and y: an annealing time (seconds)]. According to the present invention, a plastic optical fiber having a small thermal shrinkage ratio and excellent heat resistance can be provided.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 7, 2005
    Inventors: Yoshinori Fukuba, Takashi Akita, Kikue Irie, Toshinori Sumi, Masashi Okamoto, Jun Okumura, Shigeaki Sasaki
  • Patent number: 6871000
    Abstract: The present invention relates to a production method of a plastic optical fiber which comprises the steps of heat drawing an undrawn plastic optical fiber obtained by melt spinning and annealing the drawn fiber at a circumferential velocity ratio between the front and rear rollers (circumferential velocity of a rear roller/circumferential velocity of a front roller) of 0.5 to 1.2 under heating conditions which satisfy 4?y??1.5x+330 and (Tgc?5)° C.?x?(Tgc+110)° C. [Tgc: a glass transition temperature of a core, x: an annealing temperature (° C.), and y: an annealing time (seconds)]. According to the present invention, a plastic optical fiber having a small thermal shrinkage ratio and excellent heat resistance can be provided.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: March 22, 2005
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshinori Fukuba, Takashi Akita, Kikue Irie, Toshinori Sumi, Masashi Okamoto, Jun Okumura, Shigeaki Sasaki
  • Patent number: 6584256
    Abstract: The present invention discloses an optical fiber cable of diameter D1 (mm) in which an adhesive layer having a thickness of 0.5 to 200 &mgr;m, a primary coating layer and a secondary coating layer are sequentially formed around the outside of an optical fiber in which the outermost layer is composed of vinylidene fluoride polymer; wherein, in the case the diameter of the optical fiber is represented with Da (mm), the thickness of the adhesive layer is represented with d (mm), and Da+2d is represented with D2, then D1/D2=1.2 to 3.5, and an optical fiber cable with plug that uses this optical fiber. Thus, the resulting optical fiber cable has superior flame resistance, is resistant to peeling of the optical fiber and coating layers, and is resistant to the occurrence of pistoning phenomenon. The optical fiber may also be composed of a core, a sheath formed around the core, and a protective layer formed around the sheath.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: June 24, 2003
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shimada, Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Jun Okumura
  • Publication number: 20030072546
    Abstract: The present invention discloses an optical fiber cable of diameter D1 (mm) in which an adhesive layer having a thickness of 0.5 to 200 &mgr;m, a primary coating layer and a secondary coating layer are sequentially formed around the outside of an optical fiber in which the outermost layer is composed of vinylidene fluoride polymer; wherein, in the case the diameter of the optical fiber is represented with Da (mm), the thickness of the adhesive layer is represented with d (mm), and Da+2d is represented with D2, then D1/D2=1.2 to 3.5, and an optical fiber cable with plug that uses this optical fiber. Thus, the resulting optical fiber cable has superior flame resistance, is resistant to peeling of the optical fiber and coating layers, and is resistant to the occurrence of pistoning phenomenon. The optical fiber may also be composed of a core, a sheath formed around the core, and a protective layer formed around the sheath.
    Type: Application
    Filed: June 3, 2002
    Publication date: April 17, 2003
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shimada, Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Jun Okumura
  • Publication number: 20030044136
    Abstract: Disclosed are an optical fiber cable comprising an optical fiber and at least one covering layer formed on the outer periphery of the optical fiber, at least one layer of the covering layer being made of a material comprising a resin component containing a polyamide polymer, wherein a flexural modulus E upon displacement of 1 mm is within a range from 2 to 15 (N/mm) and the optical fiber cable passes a flame resistance test in accordance with DIN 72551-5, and an optical fiber cable with a plug using the optical fiber. Therefore, they have excellent flame resistance and good handling properties.
    Type: Application
    Filed: June 21, 2002
    Publication date: March 6, 2003
    Inventors: Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Yoshimi Kamimura, Jun Okumura
  • Publication number: 20030021564
    Abstract: This invention relates to a copolymer prepared by polymerizing at least a vinyl compound (A) which gives a homopolymer with a refractive index of 1.50 or more, a fluoroalkyl (meth)acrylate (B) represented by the following formula (1) and methyl methacrylate (C), wherein a weight ratio of monomer (A) component/monomer (B) component ((A)/(B)) in the copolymer is within the range of 0.2 to 1; as well as a plastic optical fiber and a plastic optical fiber cable comprising a clad made of the copolymer. This invention can provide a plastic optical fiber and a plastic optical fiber cable exhibiting a reduced transmission loss, minimizing increase in a transmission loss even when being held as a bobbin-wound form, exhibiting a reduced bend loss and can transmit a wide-band data.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 30, 2003
    Inventors: Yoshihiro Tsukamoto, Yasushi Kawaharada, Kikue Irie, Tetsuya Jigami, Jun Okumura, Yoshihiro Uozu
  • Publication number: 20020176652
    Abstract: An optical device comprises a core layer; a first clad layer, with the core layer being deposited on a part of surface of the first clad layer; a second clad layer, with the core layer being provided between the first clad layer and the second clad layer; a third clad layer deposited on the second clad, an electrode for heating, and a substrate having a heat-sink function. At least one of the core layer and the clad layers comprises a material having a positive refractive index variation coefficient. The third clad layer has a refractive index smaller than that of the second clad layer.
    Type: Application
    Filed: April 16, 2002
    Publication date: November 28, 2002
    Applicant: NGK Insulators, Ltd.
    Inventors: Osamu Mitomi, Takenori Ichigi, Masatsugu Oshima, Jun Okumura, Kenji Aoki, Masataka Yamashita