Patents by Inventor Akihiro Sakamoto
Akihiro Sakamoto 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: 10204763Abstract: A controller disclosed herein drives, in a first step, a high frequency generating source at a first energy condition, and drives, in a second step, a high frequency generating source at a second energy condition. Prior to a switching time of the first step and the second step, the controller switches gas species supplied from the gas supply system into the processing container, and sets a gas flow rate in an initial period just after the switching to be larger than a gas flow rate in a stabilization period after lapse of the initial period.Type: GrantFiled: June 26, 2015Date of Patent: February 12, 2019Assignee: TOKYO ELECTRON LIMITEDInventors: Takao Funakubo, Hirofumi Haga, Shinichi Kozuka, Wataru Ozawa, Akihiro Sakamoto, Naoki Taniguchi, Hiroshi Tsujimoto, Kumiko Ono
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Publication number: 20180135154Abstract: The low alloy steel for oil country tubular goods according to the present invention has a chemical composition containing, by mass percent, C: 0.56 to 1.00%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: at most 0.025%, 5: at most 0.010%, Al: 0.005 to 0.100%, Mo: 0.40 to 1.00%, V: 0.05 to 0.30%, and O: at most 0.010%, the balance being Fe and impurities, wherein the yield stress thereof is at least 862 MPa, and the half-value width of a [211] crystal surface obtained by X-ray diffraction is at most 0.50°.Type: ApplicationFiled: January 10, 2018Publication date: May 17, 2018Inventors: Tomohiko OMURA, Yuji ARAI, Kaori KAWANO, Akihiro SAKAMOTO, Kazuo OKAMURA, Kenji YAMAMOTO, Keiichi KONDO
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Patent number: 9909198Abstract: The low alloy steel for oil country tubular goods according to the present invention has a chemical composition containing, by mass percent, C: 0.56 to 1.00%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: at most 0.025%, S: at most 0.010%, Al: 0.005 to 0.100%, Mo: 0.40 to 1.00%, V: 0.05 to 0.30%, and O: at most 0.010%, the balance being Fe and impurities, wherein the yield stress thereof is at least 862 MPa, and the half-value width of a [211] crystal surface obtained by X-ray diffraction is at most 0.50°.Type: GrantFiled: November 5, 2012Date of Patent: March 6, 2018Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Tomohiko Omura, Yuji Arai, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Keiichi Kondo
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Publication number: 20170304883Abstract: According to the present invention, there is provided a cooling apparatus for a steel material in which one portion in a longitudinal direction of an elongated steel material (10) is heated while the steel material is fed in the longitudinal direction in a state where one end portion of the steel material is gripped, and the one end portion is moved in a two-dimensional or three-dimensional direction so as to form the steel material into a predetermined shape including a bent portion and thereafter to cool a heated portion including the bent portion. The cooling apparatus includes a first cooling apparatus (22) that ejects a first cooling medium to the heated portion, and a second cooling apparatus (23) that is disposed on a downstream side from the first cooling apparatus when viewed along a feeding direction of the steel material, and that ejects a second cooling medium to the heated portion.Type: ApplicationFiled: October 5, 2015Publication date: October 26, 2017Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Yoshihiro SERIZAWA, Akihiro SAKAMOTO, Masahito TASAKA, Naoaki SHIMADA, Ryuji HAMADA, Hideki MATSUDA, Norimasa YAMASAKI
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Patent number: 9546408Abstract: A method for quenching a steel pipe by water cooling from an outer surface thereof, where pipe end portions are not subjected to water cooling, and at least part of a main body other than the pipe end portions is subjected to water cooling. A region(s) that is not subjected to direct water cooling over an entire circumference thereof can be along an axial direction at least in part of the main body other than the pipe end portions. The start and stop of water cooling can be intermittent at least in part of the quenching. During the water cooling of the pipe outer surface, an intensified water cooling can be performed in a temperature range in which the pipe outer surface temperature is higher than Ms point. Thereafter, the cooling can be switched to moderate cooling so that the outer surface is cooled down to Ms point or lower.Type: GrantFiled: March 13, 2012Date of Patent: January 17, 2017Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Tomohiko Omura, Yuji Arai
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Publication number: 20150380282Abstract: A controller disclosed herein drives, in a first step, a high frequency generating source at a first energy condition, and drives, in a second step, a high frequency generating source at a second energy condition. Prior to a switching time of the first step and the second step, the controller switches gas species supplied from the gas supply system into the processing container, and sets a gas flow rate in an initial period just after the switching to be larger than a gas flow rate in a stabilization period after lapse of the initial period.Type: ApplicationFiled: June 26, 2015Publication date: December 31, 2015Applicant: TOKYO ELECTRON LIMITEDInventors: Takao FUNAKUBO, Hirofumi HAGA, Shinichi KOZUKA, Wataru OZAWA, Akihiro SAKAMOTO, Naoki TANIGUCHI, Hiroshi TSUJIMOTO, Kumiko ONO
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Patent number: 9181610Abstract: An object of the present invention is to provide air cooling equipment for a heat treatment process for a martensitic stainless steel pipe, which is capable of shortening the time required for the heat treatment process by enhancing the cooling efficiency at the time when the inner surface of steel pipe is air cooled in the heat treatment ent process. Air cooling equipment 100 for a heat treatment process for a martensitic stainless steel pipe P in accordance with the present invention comprises: a conveying device 10 for intermittently conveying the steel pipe P in the direction substantially at right angles to the longitudinal direction of the steel pipe P; and an air cooling device 20 provided with a nozzle 21 for spraying air Bi toward the inner surface of the steel pipe P, the nozzle 21 being arranged along the longitudinal direction of the steel pipe P at a stop position of the steel pipe P intermittently conveyed by the conveying device 10 so as to face to an end of the steel pipe P.Type: GrantFiled: December 15, 2008Date of Patent: November 10, 2015Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Nobuyuki Mori, Akihiro Sakamoto
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Publication number: 20150247226Abstract: The low alloy steel for oil country tubular goods according to the present invention has a chemical composition containing, by mass percent, C: 0.56 to 1.00%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: at most 0.025%, S: at most 0.010%, Al: 0.005 to 0.100%, Mo: 0.40 to 1.00%, V: 0.05 to 0.30%, and O: at most 0.010%, the balance being Fe and impurities, wherein the yield stress thereof is at least 862 MPa, and the half-value width of a [211] crystal surface obtained by X-ray diffraction is at most 0.50°.Type: ApplicationFiled: November 5, 2012Publication date: September 3, 2015Inventors: Tomohiko Omura, Yuji Arai, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Keiichi Kondo
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Publication number: 20150114527Abstract: A steel for oil country tubular goods includes, as a chemical composition, by mass %, C, Si, Mn, Al, Mo, P, S, O, N, and a balance containing Fe and impurities, wherein a full width at half maximum HW of a crystal plane corresponding to a (211) crystal plane of an ? phase and a carbon content expressed in mass % in the chemical composition satisfy HW×C1/2?0.38, the carbon content and a molybdenum content expressed in mass % in the chemical composition satisfy C×Mo?0.6, a number of M2C carbides having a hexagonal crystal structure and having an equivalent circle diameter of 1 nm or more is 5 pieces or more per one square micron, and an yield strength is 758 MPa or more.Type: ApplicationFiled: June 17, 2013Publication date: April 30, 2015Inventors: Tomohiko Omura, Yuji Arai, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Keiichi Kondo, Koji Nagahashi, Masanao Seo
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Publication number: 20140007994Abstract: A method for quenching a steel pipe by water cooling from an outer surface thereof, where pipe end portions are not subjected to water cooling, and at least part of a main body other than the pipe end portions is subjected to water cooling. A region(s) that is not subjected to direct water cooling over an entire circumference thereof can be along an axial direction at least in part of the main body other than the pipe end portions. The start and stop of water cooling can be intermittent at least in part of the quenching. During the water cooling of the pipe outer surface, an intensified water cooling can be performed in a temperature range in which the pipe outer surface temperature is higher than Ms point. Thereafter, the cooling can be switched to moderate cooling so that the outer surface is cooled down to Ms point or lower.Type: ApplicationFiled: March 13, 2012Publication date: January 9, 2014Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Tomohiko Omura, Yuji Arai
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Patent number: 8481711Abstract: An object of the present invention is to provide a non-peptidic nerve axon and/or neurite outgrowth agent for allowing a nerve axon and a neurite to elongate. 3-(Aminocarbonyl)-1-[5-O-[[1-(6-amino-9H-purin-9-yl)-1-deoxy-?-D-ribofuranos-5-O-yl]phosphonyloxy(oxylato)phosphinyl]-?-L-ribofuranosyl]pyridinium that is an analogue of nicotinamide adenine dinucleotide (NAD) comprising ?-L-ribose as the sugar component is used as a nerve axon and/or neurite outgrowth agent or composition, a cancer cell growth suppressing and/or apoptosis inducing agent, or a cancer cell growth suppressing and/or apoptosis inducing composition.Type: GrantFiled: April 20, 2011Date of Patent: July 9, 2013Assignee: Hidenori KamanishiInventors: Hidenori Kaminishi, Junei Kinjo, Ryota Tsuchihashi, Tsuyoshi Ikeda, Akihiro Sakamoto
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Publication number: 20130102771Abstract: An object of the present invention is to provide a non-peptidic nerve axon and/or neurite outgrowth agent for allowing a nerve axon and a neurite to elongate. 3-(Aminocarbonyl)-1-[5-O-[[1-(6-amino-9H-purin-9-yl)-1-deoxy-?-D-ribofuranos-5-O-yl]phosphonyloxy(oxylato)phosphinyl]-?-L-ribofuranosyl]pyridinium that is an analogue of nicotinamide adenine dinucleotide (NAD) comprising ?-L-ribose as the sugar component is used as a nerve axon and/or neurite outgrowth agent or composition, a cancer cell growth suppressing and/or apoptosis inducing agent, or a cancer cell growth suppressing and/or apoptosis inducing composition.Type: ApplicationFiled: April 20, 2011Publication date: April 25, 2013Inventors: Hidenori Kaminishi, Junei Kinjo, Ryota Tsuchihashi, Tsuyoshi Ikeda, Akihiro Sakamoto
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Patent number: 8428907Abstract: A path of a signal extends from an initial point through first and second cells to an end point. The signal is supplied as a first signal to the first cell and outputted therefrom as a second signal. The signal is supplied as a third signal to the second cell and outputted therefrom as a fourth signal. First delay amounts of the signal in the first cell and a transition time of the second signal are calculated based on a transition time of the first signal and a voltage supplied to the first cell. Second delay amounts of the signal in the second cell and a transition time of the fourth signal are calculated similarly. Here, the transition time of the second signal is set to be a transition time of the third signal. Jitter values in the end point are calculated based on the first and second amounts.Type: GrantFiled: July 30, 2010Date of Patent: April 23, 2013Assignee: Renesas Electronics CorporationInventor: Akihiro Sakamoto
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Patent number: 8225546Abstract: To realize a root-preventing sheet with outstanding shape maintaining properties while being thin and light that even when affixed has no wrinkles, is difficult to tear, has excellent applicability, durability and adhesiveness and demonstrates definite root-preventing effects at low cost.Type: GrantFiled: October 30, 2007Date of Patent: July 24, 2012Assignee: Tajima Ryokka IncorporatedInventors: Kunio Tajima, Toru Kojima, Akihiro Sakamoto, Yoshiaki Gotou
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Patent number: 8049990Abstract: A cleaning tape has a base tape made of a synthetic resin and a cleaning layer formed on a surface of this base tape. The cleaning layer has a binding agent and a large number of spherical particles dispersed in the binding agent in a single particle layer. Such a cleaning tape is capable of removing very small unwanted protrusions and particles on the surface of a target object such as a magnetic hard disk without forming scratches.Type: GrantFiled: September 30, 2008Date of Patent: November 1, 2011Assignee: Nihon Micro Coating Co., Ltd.Inventors: Yuji Horie, Yasuyuki Yokota, Jun Tamura, Akihiro Sakamoto, Noriyuki Kumasaka
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Patent number: 8016642Abstract: A blasting device for blasting steel pipe inner surface includes a tubular carrier fluid inflow unit connected to one end of a horizontal steel pipe, and a negative pressure suction unit connected to the other end of the steel pipe. A polishing material or a wiping material is injected horizontally into the carrier fluid inflow unit along with a carrier fluid from a hole formed in the edge face of the tubular carrier inflow unit. The device provides improved blast performance as well as the capability to blast the inner surface from beginning portion to an end portion to provide an excellent inner surface texture.Type: GrantFiled: February 27, 2009Date of Patent: September 13, 2011Assignee: Sumitomo Metal Industries, Ltd.Inventors: Yoshiyuki Kuroiwa, Akihiro Sakamoto
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Publication number: 20110133118Abstract: The crystallized glass according to the present invention contains a LiVOPO4 crystal. The LiVOPO4 crystal is preferably a ?-LiVOPO4 crystal. In addition, the crystallized glass according to the present invention preferably contains a composition of Li2O: 25-60%, V2O5: 20-40% and P2O5: 20-40% in terms of mol %. The crystallized glass according to the present invention is suitable as a positive electrode material for lithium ion secondary batteries. The present invention provides a substance suitable as a positive electrode material for a lithium secondary battery having good battery properties and a method for producing the substance.Type: ApplicationFiled: May 13, 2009Publication date: June 9, 2011Inventors: Tsuyoshi Honma, Kenta Nagamine, Takayuki Komatsu, Tomohiro Nagakane, Akihiro Sakamoto
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Patent number: 7954887Abstract: A rear structure (10) of a vehicle is provided in which a lower back reinforcement (16) is provided longitudinally forward of a lower back panel (12). A gusset (34) connects the lower back reinforcement (16) and a rear floor side member (20) in a longitudinally and laterally oblique direction. Accordingly, when a collision load is applied to the vehicle from an oblique rear direction of the vehicle, the change in the angle formed by the lower back reinforcement (16) and the rear floor side member (20) is suppressed and the rigidity against such a collision load is thus improved.Type: GrantFiled: September 20, 2006Date of Patent: June 7, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Akihiro Sakamoto, Takero Kato, Masao Hitomi
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Publication number: 20110120691Abstract: An object of the present invention is to provide air cooling equipment for a heat treatment process for a martensitic stainless steel pipe, which is capable of shortening the time required for the heat treatment process by enhancing the cooling efficiency at the time when the inner surface of steel pipe is air cooled in the heat treatment ent process. Air cooling equipment 100 for a heat treatment process for a martensitic stainless steel pipe P in accordance with the present invention comprises: a conveying device 10 for intermittently conveying the steel pipe P in the direction substantially at right angles to the longitudinal direction of the steel pipe P; and an air cooling device 20 provided with a nozzle 21 for spraying air Bi toward the inner surface of the steel pipe P, the nozzle 21 being arranged along the longitudinal direction of the steel pipe P at a stop position of the steel pipe P intermittently conveyed by the conveying device 10 so as to face to an end of the steel pipe P.Type: ApplicationFiled: December 15, 2008Publication date: May 26, 2011Applicant: SUMITOMO METAL INDUSTRIES, LTD.Inventors: Nobuyuki Mori, Akihiro Sakamoto
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Publication number: 20110065363Abstract: A scale removing apparatus 7 in accordance with the present invention subjects the internal surface of the steel pipe 3 to a blasting process wherein abrasive particles (not shown) are ejected through a high-pressure jet nozzle 2 and collide with the internal surface of the steel pipe 3. The scale removing apparatus 7 has the high-pressure jet nozzle 2 for ejecting the abrasive particle, a dust collector 4 for collecting dust particles after blasting, and restraining means 6 for restraining air from flowing into the steel pipe 3 from an end part of the steel pipe 3 along with the transfer of abrasive particle ejected through the high-pressure jet nozzle 2. Therefore, the scale can be removed without scattering of dust particles into the atmosphere even with a low-capacity dust collector.Type: ApplicationFiled: September 21, 2010Publication date: March 17, 2011Applicant: SUMITOMO METAL INDUSTRIES, LTD.Inventors: Yoshiyuki Kuroiwa, Akihiro Sakamoto, Genji Morimoto