Patents by Inventor Shinichi Fujino
Shinichi Fujino 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: 9074030Abstract: Provided is a method for producing a water absorbent resin, which promotes the formation of interconnected voids (continuous gas bubbles) in a foamed polymer (foam-like water absorbent resin) by a more convenient method, and produces with high efficiency a water absorbent resin which exhibits a high water absorption rate even when stepped into a sheet form or a powder form in hygiene articles and the like.Type: GrantFiled: June 29, 2011Date of Patent: July 7, 2015Assignee: Nippon Shokubai Co., Ltd.Inventors: Toshihiro Takaai, Hidenori Wada, Shinichi Fujino
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Patent number: 8865338Abstract: A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members that electrically connect the plurality of battery cells; and a voltage detection conductor that detects voltages at each of the plurality of battery cells. The casing includes at least a pair of resin side plates that sandwich and support the plurality of battery cells from both sides. The voltage detection conductor is formed in a predetermined shape and integrated with the side plates.Type: GrantFiled: February 19, 2010Date of Patent: October 21, 2014Assignees: Hitachi Automotive Systems, Ltd., Hitachi, Ltd.Inventors: Tatsuo Sugawara, Shinichi Fujino, Hideki Honma, Sadashi Seto
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Patent number: 8809475Abstract: A production method for a water-absorbent resin, comprising a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction, and a drying step for drying the hydrogel, wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine, the solid content of the hydrogel supplied to the drying step is 35% by weight or more, and thickness variation rate (1) represented by the following EXPRESSION 1 of the hydrogel loaded onto through-flow belt in the continuous through-flow belt, is 1.05 to 5: [MATH. 1] Thickness variation rate (1)=(Maximum thickness of hydrogel in a width direction of the through-flow belt)/(Average thickness of hydrogel in a width direction of the through-flow belt).Type: GrantFiled: August 30, 2010Date of Patent: August 19, 2014Assignee: Nippon Shokubai, Co., Ltd.Inventors: Koji Matsumoto, Kozo Nogi, Shinichi Fujino, Yorimichi Dairoku, Kunihiko Ishizaki
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Patent number: 8802800Abstract: A production method for a water-absorbent resin, comprising a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction, and a drying step for drying the hydrogel, wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine, the pore opening rate of the through-flow belt in the continuous through-flow belt-type drying machine is 20 to 50%, the solid content of the hydrogel supplied to the drying step is 35% by weight or more, and the area occupancy rate of the hydrogel is 85 to 100% relative to the through-flow belt.Type: GrantFiled: August 30, 2010Date of Patent: August 12, 2014Assignee: Nippon Shokubai Co., Ltd.Inventors: Shinichi Fujino, Kozo Nogi, Kunihiko Ishizaki
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Publication number: 20140114035Abstract: The purpose of the present invention is to provide a method for producing a water absorbent resin in which a water absorbent resin having excellent properties can be obtained effectively.Type: ApplicationFiled: April 20, 2012Publication date: April 24, 2014Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kozo Nogi, Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino, Satoshi Matsumoto
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Publication number: 20140110752Abstract: A power module includes a semiconductor device having at least one electrode surface on each side thereof, a first conductive member connected to the electrode surface provided on one side of the semiconductor device with solder, and a second conductive member connected to the electrode surface provided on the other side of the semiconductor device with solder, with at least one of the electrode surfaces provided on the one side of the semiconductor device being double comb-shaped.Type: ApplicationFiled: June 28, 2012Publication date: April 24, 2014Applicant: Hitachi Automotive Systems, Ltd.Inventors: Shinichi Fujino, Hideto Yoshinari, Shiro Yamashita
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Patent number: 8648161Abstract: The purpose of the present invention is to improve the water absorption of a water-absorbent resin without sacrificing the productivity, production cost, safety, and so on. Provided is a sustainable and renewable water-absorbent resin with excellent whiteness, which is suitable for mass consumption as disposal diapers or the like, and which can dispense with excessive purification of raw material acrylic acid. Also provided is a process for the production of a water-absorbent resin, which comprises: a step of preparing acrylic monomers; a step of polymerizing the monomers; and a step of drying the obtained aqueous gel, wherein the monomers at the time of polymerization contain at least 400 ppm of propionic acid.Type: GrantFiled: February 8, 2010Date of Patent: February 11, 2014Assignee: Nippon Shokubai Co., Ltd.Inventors: Shinichi Fujino, Eri Nagasawa, Satoshi Matsumoto, Kunihiko Ishizaki
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Patent number: 8623994Abstract: With regard to a method for producing a water absorbent resin by drying a particulate hydrogel crosslinked polymer having a high solid content concentration (of 45% by weight or more, further 50% by weight or more, and particularly 55% by weight or more), to provide a method for efficient drying of a water absorbent resin having maintained/improved physical properties. A production method in which a through-circulation belt type dryer or a through-circulation stationary batch type dryer is used in the drying step and the drop and scatter ratio of a particulate hydrogel crosslinked polymer is set to 1% by weight or less.Type: GrantFiled: January 20, 2011Date of Patent: January 7, 2014Assignee: Nippon Shokubai, Co., Ltd.Inventors: Toshihiro Takaai, Shinichi Fujino, Hidenori Wada
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Patent number: 8616311Abstract: An electrical storage device includes: a conductive battery house casing electrically connected to a chassis; a plurality of battery cells held in the battery house casing; and a control unit that comprises a circuit that manages the plurality of battery cells and is mounted on the battery house casing so that a negative terminal of the circuit and the battery house casing are electrically conducting.Type: GrantFiled: September 28, 2010Date of Patent: December 31, 2013Assignees: Hitachi, Ltd., Hitachi Vehicle Energy, Ltd.Inventors: Yoshihisa Tsurumi, Shinichi Fujino, Sadashi Seto
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Patent number: 8519212Abstract: The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The process for producing a water-absorbent resin comprises the step of polymerizing an aqueous solution of water-absorbent resin-forming monomers including acrylic acid and/or its sodium salt as major components, wherein: (1) the aqueous solution has a monomer component concentration of not less than 45 weight %; (2) the polymerization is carried out while water is evaporated so that the ratio (concentration ratio) between a solid component concentration in a hydropolymer as formed by the polymerization and a solid component concentration in the aqueous monomer solution will not be less than 1.10; and (3) the solid component concentration in the hydropolymer as formed by the polymerization is not more than 80 weight %.Type: GrantFiled: May 11, 2010Date of Patent: August 27, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Yorimichi Dairoku, Yoshio Irie, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi, Kunihiko Ishizaki
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Publication number: 20130123435Abstract: Provided is a method which does not require alteration of the raw materials or high capital investment, and improves and stabilizes the physical property (for example, liquid permeability) of a water absorbent resin by means of a simple technique. A method for producing a water absorbent resin is disclosed, which method includes a polymerization step of polymerizing an aqueous solution of acrylic acid (salt) to obtain a water-containing gel-like crosslinked polymer; a drying step of drying the water-containing gel-like crosslinked polymer to obtain a water absorbent resin powder; a classification step of classifying the water absorbent resin powder; and a surface crosslinking step of surface crosslinking the water absorbent resin powder, wherein in the classification steps that are carried before the surface crosslinking step and/or after the surface crosslinking step, the stretch tension (tension) of the metal sieve mesh used in the classification step is from 35 [N/cm] to 100 [N/cm].Type: ApplicationFiled: March 17, 2011Publication date: May 16, 2013Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Sumio Okuda, Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino, Kozo Nogi
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Publication number: 20130101851Abstract: Provided is a method for producing a water absorbent resin, which promotes the formation of interconnected voids (continuous gas bubbles) in a foamed polymer (foam-like water absorbent resin) by a more convenient method, and produces with high efficiency a water absorbent resin which exhibits a high water absorption rate even when stepped into a sheet form or a powder form in hygiene articles and the like.Type: ApplicationFiled: June 29, 2011Publication date: April 25, 2013Applicant: Nippon Shokubai Co., Ltd.Inventors: Toshihiro Takaai, Hidenori Wada, Shinichi Fujino
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Patent number: 8420752Abstract: An apparatus (2) includes a neutralization tank (3), a pump (4), a heat exchanger (6), a line mixer (8), a polymerizer (10), a first pipe (12), a second pipe (14), a third pipe (16), a fourth pipe (18), and a fifth pipe (20). Continuously supplied into the neutralization tank (3) are a monomer aqueous solution and a basic aqueous solution, so as to prepare a mixture solution. The mixture solution is circulated through the first pipe (12), the pump (4), the second pipe (14), the heat exchanger (6), and the third pipe (16). The mixture solution is supplied to the polymerizer through the fourth pipe (18).Type: GrantFiled: March 31, 2009Date of Patent: April 16, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Toshihiro Takaai, Yorimichi Dairoku, Shinichi Fujino
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Publication number: 20130066019Abstract: A method of enhancing and stabilizing the physical property (for example, liquid permeability) of a water absorbent resin by means of a simple technique without requiring any alteration of the raw materials or high capital investment, is provided. Disclosed is a method for producing a water absorbent resin, which includes a polymerization step of polymerizing an aqueous solution of acrylic acid (salt) to obtain a water-containing gel-like crosslinked polymer; a drying step of drying the water-containing gel-like crosslinked polymer, to obtain a water absorbent resin powder; a classification step of classifying the water absorbent resin powder; and a surface crosslinking step of surface crosslinking the water absorbent resin powder, wherein in the classification step that is carried out before the surface crosslinking step and/or after the surface crosslinking step, a tapping material is installed below the metal sieve mesh used in the classification step, and thereby classification is carried out.Type: ApplicationFiled: March 17, 2011Publication date: March 14, 2013Applicant: Nippon Shokubai Co., Ltd.Inventors: Sumio Okuda, Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino, Kozo Nogi
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Publication number: 20120320645Abstract: A power converter which has a power module allowing supply and cutoff of main current, and a driver module controlling supply and cutoff of the main current allowed by the power module includes: a high potential side semiconductor device which allows supply and cutoff of the main current on the high potential side of the power module; a low potential side semiconductor device which allows supply and cutoff of the main current on the low potential side of the power module, and is connected with the high potential side semiconductor device in series; plural power module side wirings connected with respective electrodes contained in the high potential side semiconductor device and the low potential side semiconductor device, and disposed adjacent to each other substantially on the same plane as the power module in the order of applied potentials with a connection end between the plural power module side wirings and the driver module located along the end of the power module; plural driver module side wirings proType: ApplicationFiled: August 19, 2010Publication date: December 20, 2012Applicant: Hitachi Automotive Systems, Ltd.Inventors: Shinichi Fujino, Yusuke Takagi, Takuma Hakuto
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Publication number: 20120296057Abstract: In a method for producing a water absorbent resin by drying a particulate hydrogel having a high solid content concentration (of 45% by weight or more, preferably 50% by weight or more, and more preferably 55% by weight or more), a method for efficient drying water absorbent resin having maintained/improved physical properties is provided.Type: ApplicationFiled: January 20, 2011Publication date: November 22, 2012Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Toshihiro Takaai, Shinichi Fujino, Hidenori Wada
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Publication number: 20120289671Abstract: With regard to a method for producing a water absorbent resin by drying a particulate hydrogel crosslinked polymer having a high solid content concentration (of 45% by weight or more, further 50% by weight or more, and particularly 55% by weight or more), to provide a method for efficient drying of a water absorbent resin having maintained/improved physical properties. A production method in which a through-circulation belt type dryer or a through-circulation stationary batch type dryer is used in the drying step and the drop and scatter ratio of a particulate hydrogel crosslinked polymer is set to 1% by weight or less.Type: ApplicationFiled: January 20, 2011Publication date: November 15, 2012Applicant: Nippon Shokubai Co., Ltd.Inventors: Toshihiro Takaai, Shinichi Fujino, Hidenori Wada
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Publication number: 20120157644Abstract: [PROBLEM] It is an object of the present invention to efficiently obtain efficiently a water-absorbent resin having excellent property. [SOLUTION] A production method for a water-absorbent resin, comprising: a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction; and a drying step for drying the hydrogel; wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine; pore opening rate of the through-flow belt in the continuous through-flow belt-type drying machine is 20 to 50%; solid content of the hydrogel supplied to the drying step is 35% by weight or more; and area occupancy rate of the hydrogel is 85 to 100% relative to the through-flow belt.Type: ApplicationFiled: August 30, 2010Publication date: June 21, 2012Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Shinichi Fujino, Kozo Nogi, Kunihiko Ishizaki
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Publication number: 20120157648Abstract: [PROBLEM] It is an object of the present invention to efficiently obtain efficiently a water-absorbent resin having excellent property. [SOLUTION] A production method for a water-absorbent resin, comprising: a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction; and a drying step for drying the hydrogel; wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine; solid content of the hydrogel supplied to the drying step is 35% by weight or more, and thickness variation rate (1) represented by the following EXPRESSION 1 of the hydrogel loaded onto through-flow belt in the continuous through-flow belt, is 1.05 to 5: [MATH. 1] Thickness variation rate (1)=(Maximum thickness of hydrogel in a width direction of the through-flow belt)/(Average thickness of hydrogel in a width direction of the through-flow belt).Type: ApplicationFiled: August 30, 2010Publication date: June 21, 2012Applicant: Nippon Shokubai Co.,Ltd.Inventors: Koji Matsumoto, Kozo Nogi, Shinichi Fujino, Yorimichi Dairoku, Kunihiko Ishizaki
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Patent number: 8188163Abstract: A water absorbent resin is dried in a continuous fluidized bed having a heat transfer tube and at least two drying rooms. Pulverization is performed between a first drying room at not less than 80° C. to not more than 200° C. and a second or subsequent room at not less than 100° C. to not more than 220° C. A method for producing a water absorbent resin includes: (1) polymerizing a monomer aqueous solution; (2) drying a hydrogel polymer of step (1); (3) performing particle size control of the dry polymer of the step (2); (5) surface crosslinking the water absorbent resin powder of step (3), and step (4) of performing a second heat drying on the water absorbent resin powder of step (3), preceding step (5). The water absorbent resin has a moisture content of 0 wt % to 3 wt % before the step (5).Type: GrantFiled: August 27, 2008Date of Patent: May 29, 2012Assignee: Nippon Shokubai Co., Ltd.Inventors: Makoto Matsumoto, Toshihiro Takaai, Yorimichi Dairoku, Shinichi Fujino, Satoshi Matsumoto, Seiji Kato