Patents by Inventor Kazunori Kawahara
Kazunori Kawahara 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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Publication number: 20230299403Abstract: Provided are a battery pack cover having excellent flame-shielding properties, a battery pack unit that uses this battery pack cover, and electric mobility that uses this battery pack unit. The battery pack cover used in the battery pack includes: a cover base material; and an inorganic fiber-formed article having a tensile strength of 20N or more. The battery pack unit includes this battery pack cover. The electric mobility includes this battery pack unit.Type: ApplicationFiled: December 7, 2021Publication date: September 21, 2023Inventors: Hideyuki SHIRAKU, Akihiro YANO, Kazunori KAWAHARA
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Publication number: 20230143567Abstract: A fiber diameter measuring device, an inorganic fiber sheet producing device, a method for measuring a fiber diameter, and a method for producing an inorganic fiber sheet, capable of guaranteeing continuous safeness of the fiber diameter of an inorganic fiber in an inorganic fiber sheet is provided. A method further capable of measuring the fiber diameter of the inorganic fiber in the inorganic fiber sheet, not only after the production of the inorganic fiber sheet but also during the production of the inorganic fiber sheet is provided. The fiber diameter measuring device includes a sampling section capable of sampling a predetermined amount of the inorganic fiber in an entire area of the inorganic fiber sheet; and a measuring section configured to measure a fiber diameter of the sampled inorganic fiber.Type: ApplicationFiled: February 1, 2021Publication date: May 11, 2023Applicant: MAFTEC CO., LTD.Inventors: Shinji SHINDO, Kazunori KAWAHARA, Tetsuji JONISHI
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Publication number: 20220170404Abstract: Provided are an inorganic fiber-formed article having both high basis weight and excellent peel strength and a mat for an exhaust gas cleaning apparatus and an exhaust gas cleaning apparatus including the inorganic fiber-formed article. The inorganic fiber-formed article includes inorganic fibers and needle marks extending in the thickness direction and including vertical bundles composed of the inorganic fibers extending in the thickness direction, in which the average volume of the vertical bundles per needle mark measured by a prescribed peel test is 1.0 mm3 or more.Type: ApplicationFiled: January 10, 2022Publication date: June 2, 2022Applicant: Mitsubishi Chemical CorporationInventors: Yusuke Kimura, Hirokazu Morita, Kazunori Kawahara
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Publication number: 20220010470Abstract: Provided are an article having inorganic fibers and needle marks extending in the thickness direction and including vertical bundles composed of the inorganic fibers extending in the thickness direction.Type: ApplicationFiled: September 24, 2021Publication date: January 13, 2022Applicant: Mitsubishi Chemical CorporationInventors: Yusuke Kimura, Hirokazu Morita, Kazunori Kawahara, Masanobu Yomogida, Hiromitsu Tsutsui
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Patent number: 10794236Abstract: In a tappet with a built-in lash adjuster, hydraulic oil is prevented from leaking from a low pressure chamber during a long-period stop. A tappet (10) includes a hydraulic lash adjuster (11) which supports a lower end portion of a push rod (96) and a tappet case (12) to which the lash adjuster (11) is internally fitted and which is reciprocally displaced in a vertical direction according to a rotating cam (85). An inner peripheral surface of the tappet case (12) is provided with an air-vent passage (34) through which air existing between the tappet case (12) and the lash adjuster (11) can be discharged upward when the lash adjuster (11) is being assembled.Type: GrantFiled: January 26, 2018Date of Patent: October 6, 2020Assignees: OTICS CORPORATION, KUBOTA CORPORATIONInventors: Kazunori Kawahara, Masayasu Takami
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Publication number: 20200232351Abstract: In a tappet with a built-in lash adjuster, hydraulic oil is prevented from leaking from a low pressure chamber during a long-period stop. A tappet (10) includes a hydraulic lash adjuster (11) which supports a lower end portion of a push rod (96) and a tappet case (12) to which the lash adjuster (11) is internally fitted and which is reciprocally displaced in a vertical direction according to a rotating cam (85). An inner peripheral surface of the tappet case (12) is provided with an air-vent passage (34) through which air existing between the tappet case (12) and the lash adjuster (11) can be discharged upward when the lash adjuster (11) is being assembled.Type: ApplicationFiled: January 26, 2018Publication date: July 23, 2020Applicants: OTICS CORPORATION, KUBOTA CORPORATIONInventors: Kazunori KAWAHARA, Masayasu TAKAMI
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Patent number: 9283606Abstract: A method of manufacturing a supporting structure includes disposing a supported member between a pair of opposed support walls, the support walls and the supported member having shaft holes formed coaxially through the support walls and the supported member respectively, inserting a shaft member through the shaft holes in the disposed state, the shaft member having two ends each having a peripheral portion circumferentially divided into a plurality of swaging portions continuous without discontinuity and swaging the swaging portions sequentially such that regions of the shaft member corresponding to the respective swaging portions are fixed in the shaft holes. The swaging portions include first swaging portions and second swaging portions, both of which are disposed so as to be paired at both radial sides of the shaft holes, respectively. A larger swage load is applied to each first swaging portion than to each second swaging portion.Type: GrantFiled: January 14, 2013Date of Patent: March 15, 2016Assignee: OTICS CORPORATIONInventors: Hideki Oka, Hiroki Fujii, Kazunori Kawahara, Haruyasu Tanaka
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Patent number: 8844488Abstract: A lubrication structure for a rocker arm includes a lash adjuster mounted in an accommodating portion located in an end of the rocker arm and a pushrod abutting against a lower end of the lash adjuster. The rocker arm is formed with an arm-inside oil supply passage for supplying lubrication oil to the lash adjuster. The lubrication oil guided into the accommodating portion is further guided through a through guide hole of the accommodating portion to an outer peripheral surface of the accommodating portion. The lubrication oil is further guided from an outer oil supply passage formed downwardly in the outer surface of the accommodating portion to the abutment between the lash adjuster and the pushrod.Type: GrantFiled: May 9, 2013Date of Patent: September 30, 2014Assignee: Otics CorporationInventor: Kazunori Kawahara
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Patent number: 8757118Abstract: The present invention provides a shim for a valve drive mechanism which is interposed between a pad surface of a rocker arm and a stem end surface of a valve. The shim includes a ship top surface that is contacted by the pad surface. The shim top surface is rotated about a center thereof to be cut, is provided with a center hole at the center thereof, and is shaped such that the pad surface does not contact an intersection line between an inner peripheral surface of the center hole and the shim top surface when the rocker arm is swung.Type: GrantFiled: February 22, 2013Date of Patent: June 24, 2014Assignee: Otics CorporationInventors: Kazunori Kawahara, Masateru Kishi
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Publication number: 20130306015Abstract: A lubrication structure for a rocker arm includes a lash adjuster mounted in an accommodating portion located in an end of the rocker arm and a pushrod abutting against a lower end of the lash adjuster. The rocker arm is formed with an arm-inside oil supply passage for supplying lubrication oil to the lash adjuster. The lubrication oil guided into the accommodating portion is further guided through a through guide hole of the accommodating portion to an outer peripheral surface of the accommodating portion. The lubrication oil is further guided from an outer oil supply passage formed downwardly in the outer surface of the accommodating portion to the abutment between the lash adjuster and the pushrod.Type: ApplicationFiled: May 9, 2013Publication date: November 21, 2013Applicant: OTICS CORPORATIONInventor: Kazunori KAWAHARA
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Publication number: 20130233266Abstract: The present invention provides a shim for a valve drive mechanism which is interposed between a pad surface of a rocker arm and a stem end surface of a valve. The shim includes a ship top surface that is contacted by the pad surface. The shim top surface is rotated about a center thereof to be cut, is provided with a center hole at the center thereof, and is shaped such that the pad surface does not contact an intersection line between an inner peripheral surface of the center hole and the shim top surface when the rocker arm is swung.Type: ApplicationFiled: February 22, 2013Publication date: September 12, 2013Applicant: OTICS CORPORATIONInventors: Kazunori KAWAHARA, Masateru Kishi
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Patent number: 8100792Abstract: A hydraulic auto-tensioner includes a high-pressure oil chamber and a low-pressure oil chamber, and oil (L) in the high-pressure oil chamber passes through a clearance (G) between a cylinder (17) and a piston portion (18) of a plunger and leaks into the low-pressure oil chamber from an end of the clearance (G) near an end surface of the cylinder (17). A recessed groove (40) is provided in an inner peripheral surface of the cylinder (17) by a conical surface (41) having a groove angle of 5 to 15 degrees from the end of the clearance (G), a throttle portion (45) projecting onto the piston portion (18) side is provided further toward the end surface side of the cylinder than the groove (40) in the inner peripheral surface of the cylinder (17), and a throttle gap (A) larger than the clearance (G) is formed between the throttle portion (45) and the piston portion (18).Type: GrantFiled: July 27, 2007Date of Patent: January 24, 2012Assignees: Otics Corporation, Toyota Jidosha Kabushiki KaishaInventors: Kazunori Kawahara, Yasuyuki Uchida, Yuji Kato, Takayoshi Ota, Hiroyuki Kawara
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Publication number: 20090298628Abstract: A hydraulic auto-tensioner includes a high-pressure oil chamber and a low-pressure oil chamber, and oil (L) in the high-pressure oil chamber passes through a clearance (G) between a cylinder (17) and a piston portion (18) of a plunger and leaks into the low-pressure oil chamber from an end of the clearance (G) near an end surface of the cylinder (17). A recessed groove (40) is provided in an inner peripheral surface of the cylinder (17) by a conical surface (41) having a groove angle of 5 to 15 degrees from the end of the clearance (G), a throttle portion (45) projecting onto the piston portion (18) side is provided further toward the end surface side of the cylinder than the groove (40) in the inner peripheral surface of the cylinder (17), and a throttle gap (A) larger than the clearance (G) is formed between the throttle portion (45) and the piston portion (18).Type: ApplicationFiled: July 27, 2007Publication date: December 3, 2009Applicants: OTICS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazunori Kawahara, Yasuyuki Uchida, Yuji Kato, Takayoshi Ota, Hiroyuki Kawara
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Publication number: 20080149898Abstract: The present disclosure provides white colored electrically conductive primer paint compositions which in addition to good electrical conductivity on polyolefin base materials have excellent adhesion properties and water resistance. A white colored electrically conductive primer paint composition comprising (A) resin which includes chlorinated polyolefin resin, (B) white colored electrically conductive filler which has been treated with a coupling agent where the coupling agent surface coverage of the filler is from 10 to 90% and (C) solvent, and in which there are from 10 to 150 parts by weight of (B) per 100 parts by weight as solid fraction of the resin (A).Type: ApplicationFiled: February 8, 2006Publication date: June 26, 2008Applicant: BASF COATINGS JAPAN LIMITEDInventors: Yuichi Shinozaki, Masato Tokieda, Kazunori Kawahara
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Patent number: 5198579Abstract: A composite oxide catalyst represented by the general formula: Mo-V-P-X-Y (wherein X represents at least one element selected from the group consisting of Sb, Cu, Co, Bi and As; Y represents at least one element selected from the group consisting of K, Rb, Cs and Tl) and a method for preparing methacrylic acid through gas phase catalytic oxidation of methacrolein with molecular oxygen in the presence of the foregoing catalyst are herein disclosed. The catalyst exhibits excellent catalytic activity, selectivity to methacrylic acid, catalytic stability and lifetime.Type: GrantFiled: November 12, 1991Date of Patent: March 30, 1993Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tadatoshi Honda, Nobuhiko Horiuchi, Jun Kitagawa, Masami Murakami, Kazunori Kawahara, Hirofumi Io
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Patent number: 5144090Abstract: A method for preparing acrolein or methacrolein comprises subjecting propylene, secondary propanol, isobutylene or tertiary butanol to gas phase catalytic oxidation with molecular oxygen in the presence of a catalyst represented by the following general formula (I):Mo.sub.a Bi.sub.b Fe.sub.c X.sub.d Y.sub.O Z.sub.f O.sub.g (I)wherein X represents at least one element selected from the group consisting of Ni and Co; Y represents at least one element selected from the group consisting of K, Rb, Cs and Tl; and Z represents at least one element selected from the group consisting of Be, Mg, Ca, Sr, Ba, Ce, Ti, Zr, Nb, Cr, W, Mn, Cu, Ag, Zn, Cd, B, Al, Si, Ge, Sn, Pb, P, As, Sb, S, Se and Te; a, b, c, d, e, f and g each represents an atomic ratio of the corresponding element and when a is assumed to be 12, b=0.1.about.10, c=0.1.about.20, d=2.about.20, e=0.01.about.2, f=0.about.Type: GrantFiled: June 6, 1991Date of Patent: September 1, 1992Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Tadatoshi Honda, Tokio Nagayama, Nobuhiko Horiuchi, Jun Kitagawa, Kazunori Kawahara, Masami Murakami
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Patent number: 5093292Abstract: The catalytic activity of a chromium oxide-based catalyst used in the production of chlorine by oxidation of hydrogen chloride gas with an oxygen-containing gas is regenerated by impregnating it with an aqueous solution of chromic acid anhydride or of a chromium salt and then calcining the catalyst at a temperature not higher than 800.degree. C.Type: GrantFiled: November 20, 1990Date of Patent: March 3, 1992Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Yukihiro Yoshikawa, Tooru Hihara, Kunihiro Yamada, Shinji Takenaka, Kazunori Kawahara, Jun Kitagawa