Patents by Inventor Norio Kawai
Norio Kawai 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: 8557005Abstract: The present invention provides a polyurethane foam, which, despite having a low specific gravity, has a hardness and an elasticity favorable for a polishing pad, and a polishing pad made using the polyurethane foam. The polyurethane foam is obtained by reacting a blend composition containing (A) a polyisocyanate, (B) a polyol, (C) a chain extender with a molecular weight of equal to or smaller than 400, and (D) water, and in the blend composition, MDI is blended as a main component of the component (A) and a blending amount of the MDI is 45 to 70 parts by weight when a total weight of the respective components (A), (B), and (C) is taken as 100 parts by weight.Type: GrantFiled: April 21, 2009Date of Patent: October 15, 2013Assignees: Toyo Polymer Co., Ltd., Nitta Haas IncorporatedInventors: Michiro Goto, Kazuo Takemoto, Nobuyuki Ooshima, Shin-ichi Haba, Kouichi Yoshida, Norio Kawai
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Publication number: 20110039966Abstract: The present invention provides a polyurethane foam, which, despite having a low specific gravity, has a hardness and an elasticity favorable for a polishing pad, and a polishing pad made using the polyurethane foam. The polyurethane foam is obtained by reacting a blend composition containing (A) polyisocyanate, (B) a polyol, (C) a chain extender with a molecular weight of equal to or smaller than 400, and (D) water, and in the blend composition, MDI is blended as a main component of the component (A) and a blending amount of the MDI is 45 to 70 parts by weight when a total weight of the respective components (A), (B), and (C) is taken as 100 parts by weight.Type: ApplicationFiled: April 21, 2009Publication date: February 17, 2011Applicants: TOYO POLYMER CO., LTD., NITTA HAAS INCORPORATEDInventors: Michiro Goto, Kazuo Takemoto, Nobuyuki Ooshima, Shin-ichi Haba, Kouichi Yoshida, Norio Kawai
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Patent number: 6467147Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.Type: GrantFiled: October 18, 1999Date of Patent: October 22, 2002Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai
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Publication number: 20020047421Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.Type: ApplicationFiled: October 18, 1999Publication date: April 25, 2002Inventors: MASAO IWATA, YOSHIKI KITAMURA, NORIO KAWAI
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Patent number: 6023828Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.Type: GrantFiled: June 26, 1997Date of Patent: February 15, 2000Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai
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Patent number: 5811908Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.Type: GrantFiled: May 1, 1996Date of Patent: September 22, 1998Assignee: Oppama Industry Co. Ltd.Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai
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Patent number: 5617373Abstract: A time totaling meter and an unit thereof for internal combustion engines comprising a part of an ignition device to lead ignition pulses toward outside of the ignition device, pulse induction means to electromagnetically induce said ignition pulses, waveform shaping means to shape this electro-magnetically induced pulses, and judging means to determine whether this waveform shaped output pulses are derived from operation of the internal combustion engine or not, and capable of counting and storing total operation time of the internal combustion engine from initial operation thereof to said count memory means based on said output pulses selected by said judging means and displaying this counted operation time on display means.Type: GrantFiled: October 13, 1995Date of Patent: April 1, 1997Assignee: Oppama Industry Co., Ltd.Inventors: Norio Kawai, Shigeo Take
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Patent number: 5287582Abstract: An adhering substance peeling apparatus provided with a vertically reciprocating scraping blade at the lower end of an operating rod of a proper length so that chewing gum, dirt and other adhering substances adhering to the ground surface or the like may be peeled off while the worker is standing upright.Type: GrantFiled: June 22, 1993Date of Patent: February 22, 1994Assignee: Oppama Kogyo Kabushiki KaishaInventors: Norio Kawai, Yoshiki Kitamura
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Patent number: 5062618Abstract: A vibration-insulative support member includes an elastic body made mainly of rubber, and a pair of upper and lower flanges secured to upper and lower ends of said elastic body, respectively. The elastic body includes cords disposed in the rubber portion of the elastic body. The cords are arranged in layers substantially parallel to the upper and lower flanges in such a manner that the cords in each layer are distributed in a plan substantially parallel to the upper and lower flanges.Type: GrantFiled: June 13, 1989Date of Patent: November 5, 1991Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Yasuhiko Yamada, Minaki Tomio, Toshiyuki Miyamae, Norio Kawai
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Patent number: 3958915Abstract: An emulsion oil containing oil and water in a ratio of 5 - 9.5:5 - 0.5 by volume is burned by two-stage combustion method or by the combination of two-stage combustion method and exhaust gas recirculation method.Type: GrantFiled: February 11, 1975Date of Patent: May 25, 1976Assignees: The Toyo Rubber Industry Co., Ltd., Kawasaki Jukogyo Kabushiki KaishaInventors: Hideyo Noda, Norio Kawai, Osamu Tarue, Kazuo Fukada, Sigeyoshi Idehara, Tadao Nakanishi, Yuzo Kakimoto, Yoshito Nakamura
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Patent number: 3934969Abstract: In burning an emulsion oil containing oil and water in a ratio of 5 - 9 : 5 - 1 by volume, a method characterized in that the emulsion oil is burned while recycling 10 to 40% by volume of the resulting combustion exhaust gas to a combustion chamber.Type: GrantFiled: December 20, 1974Date of Patent: January 27, 1976Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Hideyo Noda, Norio Kawai, Osamu Tarue, Kazuo Fukada, Shigeyoshi Idehara, Tadao Nakanishi, Yuzo Kakimoto, Yoshito Nakamura