Patents by Inventor Shigeharu Yamamoto
Shigeharu Yamamoto 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: 9140674Abstract: A test method for the determination of methanol in crude oils to levels as low as 0.5 ppm is disclosed. The method includes extracting methanol into a water phase from a test sample of the crude oil forming a test sample extract. The method further includes extracting methanol into a water phase from a reference sample of the crude oil forming a reference sample extract, wherein the reference sample having a predetermined amount of methanol added thereto. The method further includes measuring the methanol content in the test sample extract and the methanol content in the reference sample extract. The method also includes determining the methanol content of the crude oil based upon the methanol content in the test sample extract and the methanol content in the reference sample extract.Type: GrantFiled: June 14, 2012Date of Patent: September 22, 2015Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Frank P. DiSanzo, Eric S. Shi, Masato Shibasaki, Shigeharu Yamamoto, Hisao Morita, Norio Takayama
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Publication number: 20130061658Abstract: A test method for the determination of methanol in crude oils to levels as low as 0.5 ppm is disclosed. The method includes extracting methanol into a water phase from a test sample of the crude oil forming a test sample extract. The method further includes extracting methanol into a water phase from a reference sample of the crude oil forming a reference sample extract, wherein the reference sample having a predetermined amount of methanol added thereto. The method further includes measuring the methanol content in the test sample extract and the methanol content in the reference sample extract. The method also includes determining the methanol content of the crude oil based upon the methanol content in the test sample extract and the methanol content in the reference sample extract.Type: ApplicationFiled: June 14, 2012Publication date: March 14, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Frank P. DiSANZO, Eric S. SHI, Masato SHIBASAKI, Shigeharu YAMAMOTO, Hisao MORITA, Norio TAKAYAMA
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Patent number: 8336357Abstract: A roller dice device includes a pair of rolling rollers respectively including circumferential rolling grooves formed at outer circumferential surfaces thereof, a supporting portion rotatably supporting the pair of rolling rollers respectively around roller axes extending in parallel with each other, a spaced portion configured by a rolling portion, through which a rolling material moves, and formed by the circumferential rolling grooves facing each other, and a restricting portion formed at the outer circumferential surfaces of the pair of the rolling rollers and restricting displacement of the pair of rolling rollers relative to each other in the axial direction of the roller axes.Type: GrantFiled: September 28, 2009Date of Patent: December 25, 2012Assignee: Aisin Seiki Kabushiki KaishaInventors: Akinori Hoshino, Tetsuya Morita, Hiroaki Yabui, Tomoko Hiramatsu, Hideyuki Aikyo, Nobuhisa Nakajima, Shigeharu Yamamoto, Yousuke Iguchi
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Patent number: 7927079Abstract: An electrically operated hydraulic pump having a pump portion and a motor portion includes rotation controlling means controlling rotation of a rotor, first rotor position detecting means detecting rotational position of the rotor on the basis of speed electromotive force induced by exciting coils, second rotor position detecting means detecting the rotational position of the rotor on the basis of magnetic field of a magnet provided at the motor portion, and motor operating condition detecting means detecting operating condition of the motor portion. The rotation controlling means switches a first rotation controlling based on the rotational position of the rotor detected by the first rotor position detecting means, and a second rotation controlling based on the rotational position of the rotor detected by the second rotor position detecting means, on the basis of a result detected by the motor operating condition detecting means.Type: GrantFiled: September 27, 2007Date of Patent: April 19, 2011Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigemitsu Suzuki, Shigeharu Yamamoto, Naoto Toma
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Publication number: 20100097170Abstract: A linear motor coil includes a first coil portion, a second coil portion, the first coil portion and the second coil portion being arranged across a partition wall, a first connecting portion provided between the first coil portion and the second coil portion and by means of which the conductive wire crosses to the first coil portion from the second coil portion while a winding direction of the conductive wire is reversed, and a second connecting portion by means of which the conductive wire crosses to the second coil portion from the first coil portion while the winding direction of the conductive wire is reversed. The conductive wire is formed by a single wire and of which a winding start point and a winding end point are provided at an end portion of the first coil portion at a side opposite from a side where the partition wall is provided.Type: ApplicationFiled: September 24, 2009Publication date: April 22, 2010Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Nobuhisa Nakajima, Hideyuki Aikyo, Satoshi Komatsu, Shigeharu Yamamoto, Yousuke Iguchi, Akinori Hoshino, Tetsuya Morita, Hiroaki Yabui, Tomoko Hiramatsu
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Publication number: 20100084501Abstract: A roller dice device includes a pair of rolling rollers respectively including circumferential rolling grooves formed at outer circumferential surfaces thereof, a supporting portion rotatably supporting the pair of rolling rollers respectively around roller axes extending in parallel with each other, a spaced portion configured by a rolling portion, through which a rolling material moves, and formed by the circumferential rolling grooves facing each other, and a restricting portion formed at the outer circumferential surfaces of the pair of the rolling rollers and restricting displacement of the pair of rolling rollers relative to each other in the axial direction of the roller axes.Type: ApplicationFiled: September 28, 2009Publication date: April 8, 2010Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Akinori HOSHINO, Tetsuya Morita, Hiroaki Yabui, Tomoko Hiramatsu, Hideyuki Aikyo, Nobuhisa Nakajima, Shigeharu Yamamoto, Yousuke Iguchi
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Publication number: 20080075608Abstract: An electrically operated hydraulic pump having a pump portion and a motor portion includes rotation controlling means controlling rotation of a rotor, first rotor position detecting means detecting rotational position of the rotor on the basis of speed electromotive force induced by exciting coils, second rotor position detecting means detecting the rotational position of the rotor on the basis of magnetic field of a magnet provided at the motor portion, and motor operating condition detecting means detecting operating condition of the motor portion. The rotation controlling means switches a first rotation controlling based on the rotational position of the rotor detected by the first rotor position detecting means, and a second rotation controlling based on the rotational position of the rotor detected by the second rotor position detecting means, on the basis of a result detected by the motor operating condition detecting means.Type: ApplicationFiled: September 27, 2007Publication date: March 27, 2008Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shigemitsu SUZUKI, Shigeharu Yamamoto, Naoto Toma
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Patent number: 7207546Abstract: An electromagnetic actuator includes: a valve body part formed in a substantially cylindrical shape and provided with: an opening to be connected to an external fluid passage; a valve accommodated in the valve body part; and a groove having an inclined face; a solenoid part that actuates a valve; and a seal member that is fitted on an outer peripheral of the inclined face to be urged in an axial direction of the valve body part.Type: GrantFiled: March 29, 2005Date of Patent: April 24, 2007Assignee: Aisin Seiki Kabushiki KaishaInventor: Shigeharu Yamamoto
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Publication number: 20050211935Abstract: An electromagnetic actuator includes: a valve body part formed in a substantially cylindrical shape and provided with: an opening to be connected to an external fluid passage; a valve accommodated in the valve body part; and a groove having an inclined face; a solenoid part that actuates a valve; and a seal member that is fitted on an outer peripheral of the inclined face to be urged in an axial direction of the valve body part.Type: ApplicationFiled: March 29, 2005Publication date: September 29, 2005Inventor: Shigeharu Yamamoto
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Patent number: 6860467Abstract: An electromagnetic valve comprises a first yoke member having an approximately cylindrical shape, a second yoke member having an approximately cylindrical shape and being disposed so as to be opposite to the first yoke member, a bobbin being molded by resin so as to surround the first yoke member and the second yoke member and being integral with the first yoke member and the second yoke member, a plunger being fitted into the first yoke member and the second yoke member so as to be movable in the axial direction, a valve member being moved by the plunger, and a plug member disposed between the opposite surfaces of the first and second yoke members.Type: GrantFiled: May 28, 2002Date of Patent: March 1, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigeharu Yamamoto, Shigeki Niimi
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Patent number: 6743863Abstract: A resin composition comprising the following components (A), (B) and (C), wherein the content of component (A) is from 10 to 90 wt %, component (B):component (C)=from 10:1 to 1:5 (weight ratio), the intrinsic viscosity [&eegr;] is in the range from 0.17 to 0.40 m3/kg, and the density is in the range from 935 to 968 kg/m3: Component (A): a homopolymer of ethylene or a copolymer of ethylene having an &agr;-olefin content of from 0 to 0.5 wt %, and an intrinsic viscosity [&eegr;] of from 0.035 to 0.17 m3/kg, Component (B): a homopolymer of ethylene or a copolymer of ethylene having an &agr;-olefin content of from 0 to 0.5 wt %, and an intrinsic viscosity [&eegr;] of from 0.2 to 1.0 m3/kg, and Component (C): a copolymer of ethylene having an &agr;-olefin content of from 0.7 to 15 wt %, and an intrinsic viscosity [&eegr;] of from 0.2 to 1.0 m3/kg.Type: GrantFiled: August 2, 2002Date of Patent: June 1, 2004Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Tetsuya Iizuka, Shigeharu Yamamoto, Masao Kawahara, Toshifumi Takemori, Masashi Iida, Katsutoshi Nishitani
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Patent number: 6627714Abstract: An olefinic copolymer having a cyclic structure is prepared by copolymerizing a) ethylene (M1) and b) dicyclopentadiene or tricyclopentadiene (M2), and, optionally c) a cyclic olefin (M3), in the presence of a catalyst which contains a metallocene compound (A) having formula [1]: H2C(R′mCp)(R″nCp)MX2[1], wherein M is zirconium or hafnium, Cp has a cyclopentadienyl skeleton, each of R′ and R″ is a hydrocarbon group having 1 to 10 carbon atoms, each of two X's which may be the same or different from each other, is a halogen, a hydrogen, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group, an alkylamino group, an alkoxy group, an aryloxy group of the formula —O—Ar—Yp, a thioalkyl group, or a thioaryl group of the formula —S—Ar—Yp; wherein Ar is an aromatic ring, Y is a halogen, a hydrogen, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group, an alkoxy group, an alkylaminoType: GrantFiled: November 5, 2001Date of Patent: September 30, 2003Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Shigeharu Yamamoto, Sakae Kamiyama, Toshifumi Takemori, Yoji Suzuki, Kazuhiko Mizuno, Yoko Furuyama, Hiroshi Yamazaki
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Patent number: 6569800Abstract: A metallocene compound may be used as a catalyst component for the polymerization of olefins. The compound is stable to air and moisture so that it generates no hydrogen halide by hydrolysis and is easily handled, and it has high storage stability and high catalyst activity. Specifically, the catalyst component for the polymerization of olefins comprises a transition metal composition represented by the general formula [1] and [2]: (RaCp)m(R′bCp)M(—X—Ar—Yc)4−(m+n) [1] R″(RdCp)(R′eCp)M(—X—Ar—Yc)2 [2] wherein M is Ti, Zr or Hf; each of (RaCp), (R′b Cp), (Rd Cp) and (R″e Cp) is a radical having the cyclopentadienyl skeleton; R″ is a radical that links (Rd Cp) and (R′e Cp); (—X—Ar—Yc) is a grouping in which the aromatic ring Ar substituted by a specified radical Y bonds to M through an oxygen or sulphur atom X.Type: GrantFiled: September 28, 2001Date of Patent: May 27, 2003Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Toshifumi Takemori, Shigeharu Yamamoto, Masatoshi Tsuchitani
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Publication number: 20030036606Abstract: A resin composition comprising the following components (A), (B) and (C), wherein the content of component (A) is from 10 to 90 wt %, component (B):component (C)=from 10:1 to 1:5 (weight ratio), the intrinsic viscosity [&eegr;] is in the range from 0.17 to 0.Type: ApplicationFiled: August 2, 2002Publication date: February 20, 2003Applicant: MARUZEN PETROCHEMICAL CO., LTD.Inventors: Tetsuya Iizuka, Shigeharu Yamamoto, Masao Kawahara, Toshifumi Takemori, Masashi Iida, Katsutoshi Nishitani
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Publication number: 20020185623Abstract: An electromagnetic valve comprises a first yoke member having an approximately cylindrical shape, a second yoke member having an approximately cylindrical shape and being disposed so as to be opposite to the first yoke member, a bobbin being molded by resin so as to surround the first yoke member and the second yoke member and being integral with the first yoke member and the second yoke member, a plunger being fitted into the first yoke member and the second yoke member so as to be movable in the axial direction, a valve member being moved by the plunger, and a plug member disposed between the opposite surfaces of the first and second yoke members.Type: ApplicationFiled: May 28, 2002Publication date: December 12, 2002Inventors: Shigeharu Yamamoto, Shigeki Niimi
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Patent number: 6455647Abstract: The present invention relates to a solid catalyst (D) for olefin polymerization comprising a magnesium-containing solid component (A) carrying thereon an organoaluminum-oxy compound (B) and a metallocene compound (C), the magnesium-containing compound (A) being obtained by heat treating a magnesium compound represented by the general formula: MgX2.nH2O where X represents a halogen atom and n is an integer of 1 to 12, and to a method of producing an olefinic polymer using the catalyst. In the case where the above solid catalyst for olefin polymerization is used, catalyst activity, particularly activity per solid catalyst, is high. Therefore, a deashing treatment step such as catalyst removal can be omitted. Further, the olefinic polymer produced has a narrow molecular weight distribution, and in the case of a copolymer, its monomer composition is uniform.Type: GrantFiled: June 8, 2000Date of Patent: September 24, 2002Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Sakae Kamiyama, Toshifumi Takemori, Minoru Iijima, Yukiko Hane, Shigeharu Yamamoto
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Publication number: 20020058767Abstract: A method for producing an olefin type copolymer having a cyclic structure, which comprises copolymerizing ethylene (M1) and dicyclopentadiene or tricyclopentadiene (M2), and, as optionally introduced, a cyclic olefin (M3), wherein, as a catalyst, a catalyst comprising a metallocene compound (A) of the following formula [1]:Type: ApplicationFiled: November 5, 2001Publication date: May 16, 2002Applicant: MARUZEN PETROCHEMICAL CO., LTD.Inventors: Shigeharu Yamamoto, Sakae Kamiyama, Toshifumi Takemori, Yoji Suzuki, Kazuhiko Mizuno, Yoko Furuyama, Hiroshi Yamazaki
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Patent number: 6368995Abstract: A solid catalyst for olefin polymerization, obtained by reacting a least one of a hydropolysiloxane compound, having the formula R1aHbSiO(4−a−b)/2, a silane compound of formula R2cSi(OH)4−c, and condensates of the silane, with a compound of formula (MgR32)p.(R3MgX)q to form a reaction product. The reaction product is reacted with an alcohol, having 1 to 4 carbon atoms, to obtain an intermediate product. The intermediate product, is then reacted with water to obtain reaction product. An organoaluminum oxy compound and a metallocene compound are carried on the solid reaction product. The solid catalyst may be used for olefin polymerization. The catalyst requires no deashing treatment and produces a polymer having high bulk density and narrow particle size distribution. Thus the solid catalystenables control of particle size of the polymer in a simple easy manner, and shows no adhesion of polymer onto the inner wall of autoclave.Type: GrantFiled: June 8, 2000Date of Patent: April 9, 2002Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Sakae Kamiyama, Toshifumi Takemori, Minoru Iijima, Yukiko Hane, Shigeharu Yamamoto
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Publication number: 20020039963Abstract: A metallocene compound may be used as a catalyst component for the polymerization of olefins. The compound is stable to air and moisture so that it generates no hydrogen halide by hydrolysis and is easily handled, and it has high storage stability and high catalyst activity.Type: ApplicationFiled: September 28, 2001Publication date: April 4, 2002Applicant: MARUZEN PETROCHEMICAL CO., LTD.Inventors: Toshifumi Takemori, Shigeharu Yamamoto, Masatoshi Tsuchitani
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Patent number: 6350831Abstract: A metallocene compound may be used as a catalyst component for the polymerization of olefins. The compound is stable to air and moisture so that it generates no hydrogen halide by hydrolysis and is easily handled, and it has high storage stability and high catalyst activity. Specifically, the catalyst component for the polymerization of olefins comprises a transition metal composition represented by the general formula [1] and [2]: (Ra Cp)m(R′b Cp)M(—X—Ar—Yc)4−(m+n) [1] R″(Rd Cp)(R′e Cp)M(—X—Ar—Yc)2 [2] wherein M is Ti, Zr or Hf; each of (Ra Cp), (R′b Cp), (Rd Cp) and (R″e Cp) is a radical having the cyclopentadienyl skeleton; R″ is a radical that links (Rd Cp) and (R′e Cp); (—X—Ar—Yc) is a grouping in which the aromatic ring Ar substituted by a specified radical Y bonds to M through an oxygen or sulphur atom X.Type: GrantFiled: December 28, 1998Date of Patent: February 26, 2002Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Toshifumi Takemori, Shigeharu Yamamoto, Masatoshi Tsuchitani