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).
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Patent number: 11958219Abstract: 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: GrantFiled: March 25, 2019Date of Patent: April 16, 2024Assignee: NISSHA CO., LTD.Inventors: Tatsuo Ito, Kenji Okumura, Jun Sasaki, Daichi Hama, Masaru Terashita
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Patent number: 10780351Abstract: 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: GrantFiled: December 27, 2018Date of Patent: September 22, 2020Assignee: DeNA Co., Ltd.Inventors: Jun Okumura, Yu Kono, Ikki Tanaka
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Publication number: 20190336862Abstract: 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: ApplicationFiled: December 27, 2018Publication date: November 7, 2019Inventors: Jun OKUMURA, Yu KONO, Ikki TANAKA
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Publication number: 20110224071Abstract: 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: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: NGK Insulators, Ltd.Inventors: Jun OKUMURA, Suguru Kodama
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Patent number: 7531231Abstract: 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: GrantFiled: May 12, 2006Date of Patent: May 12, 2009Assignee: NGK Insulators, Ltd.Inventors: Jun Okumura, Tomohiro Iida
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Patent number: 7514136Abstract: 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: GrantFiled: October 20, 2006Date of Patent: April 7, 2009Assignee: NGK Insulators, Ltd.Inventor: Jun Okumura
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Publication number: 20090010817Abstract: 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: ApplicationFiled: April 23, 2008Publication date: January 8, 2009Applicant: NGK INSULATORS, LTD.Inventor: Jun Okumura
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Publication number: 20070092693Abstract: 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: ApplicationFiled: October 20, 2006Publication date: April 26, 2007Applicant: NGK INSULATORS, LTD.Inventor: Jun Okumura
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Patent number: 7184631Abstract: 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: GrantFiled: September 6, 2001Date of Patent: February 27, 2007Assignee: NGK Insulators, Ltd.Inventors: Osamu Mitomi, Takenori Ichigi, Masatsugu Oshima, Jun Okumura, Masataka Yamashita
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Patent number: 7142754Abstract: 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: GrantFiled: December 27, 2000Date of Patent: November 28, 2006Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshihiro Tsukamoto, Yasushi Kawaharada, Kikue Irie, Tetsuya Jigami, Jun Okumura, Yoshihiro Uozu
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Publication number: 20060263573Abstract: 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: ApplicationFiled: May 12, 2006Publication date: November 23, 2006Applicant: NGK INSULATORS, LTD.Inventors: Jun Okumura, Tomohiro Iida
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Patent number: 7031582Abstract: 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: GrantFiled: December 25, 2000Date of Patent: April 18, 2006Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Yoshimi Kamimura, Jun Okumura
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Patent number: 6961493Abstract: 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: GrantFiled: April 16, 2002Date of Patent: November 1, 2005Assignee: NGK Insulators, Ltd.Inventors: Osamu Mitomi, Takenori Ichigi, Masatsugu Oshima, Jun Okumura, Kenji Aoki, Masataka Yamashita
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Publication number: 20050147368Abstract: 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: ApplicationFiled: February 10, 2005Publication date: July 7, 2005Inventors: Yoshinori Fukuba, Takashi Akita, Kikue Irie, Toshinori Sumi, Masashi Okamoto, Jun Okumura, Shigeaki Sasaki
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Patent number: 6871000Abstract: 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: GrantFiled: September 7, 2000Date of Patent: March 22, 2005Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshinori Fukuba, Takashi Akita, Kikue Irie, Toshinori Sumi, Masashi Okamoto, Jun Okumura, Shigeaki Sasaki
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Patent number: 6584256Abstract: 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: GrantFiled: June 3, 2002Date of Patent: June 24, 2003Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Katsuhiko Shimada, Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Jun Okumura
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Publication number: 20030072546Abstract: 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: ApplicationFiled: June 3, 2002Publication date: April 17, 2003Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Katsuhiko Shimada, Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Jun Okumura
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Publication number: 20030044136Abstract: 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: ApplicationFiled: June 21, 2002Publication date: March 6, 2003Inventors: Kazuki Nakamura, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Yoshimi Kamimura, Jun Okumura
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Publication number: 20030021564Abstract: 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: ApplicationFiled: June 27, 2002Publication date: January 30, 2003Inventors: Yoshihiro Tsukamoto, Yasushi Kawaharada, Kikue Irie, Tetsuya Jigami, Jun Okumura, Yoshihiro Uozu
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Publication number: 20020176652Abstract: 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: ApplicationFiled: April 16, 2002Publication date: November 28, 2002Applicant: NGK Insulators, Ltd.Inventors: Osamu Mitomi, Takenori Ichigi, Masatsugu Oshima, Jun Okumura, Kenji Aoki, Masataka Yamashita