Patents by Inventor Kouichi Akiyama
Kouichi Akiyama 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: 10889074Abstract: The present invention relates to a method for manufacturing a fiber-reinforced composite material molding, having a step (A) for forming a plurality of partial preforms, each having a partial shape obtained by dividing the three-dimensional shape of a target fiber-reinforced composite material molding, by cutting a prepreg sheet containing reinforcing fibers and a matrix resin composition, and by preshaping the cut prepreg pieces; a step (B) for forming a preform having the three-dimensional shape of the target fiber-reinforced composite material molding by combining and integrating the plurality of partial preforms; and a step (C) for producing a fiber-reinforced composite material molding by compression-molding the preform, wherein the step (B) includes arranging a foamable material between the plurality of partial preforms when they are combined.Type: GrantFiled: February 19, 2015Date of Patent: January 12, 2021Assignee: Mitsubishi Chemical CorporationInventors: Yoshihide Kakimoto, Kazuhisa Ikeda, Kouichi Akiyama, Mitsuru Kutsuwada
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Patent number: 10315343Abstract: A manufacturing method for a molded article of a fiber-reinforced composite material obtains a molded article of a fiber-reinforced composite material having a three-dimensional shape by: preparing a sheet-shaped prepreg containing reinforcing fibers and a matrix resin composition; preliminarily shaping the prepreg to produce a plurality of partial preforms having shapes obtained by dividing the shape of the molded article; producing a first partial preform group and a second partial preform group, which have the shape of the molded article, by combining the plurality of partial preforms so that the ends thereof in the direction perpendicular to the thickness direction do not overlap in the thickness direction; producing a preform by bringing the first and second partial preform groups into close contact with each other in the thickness direction; and compression molding the preform using a molding die.Type: GrantFiled: September 10, 2013Date of Patent: June 11, 2019Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Mitsuru Kutsuwada, Kouichi Akiyama, Yoshihide Kakimoto, Kazuhisa Ikeda
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Patent number: 9828660Abstract: A method for manufacturing an aluminum alloy casting includes obtaining the aluminum alloy casting by casting an aluminum alloy into a mold, performing solution heat treatment, rapidly cooling the casting, performing aging treatment, and cooling the casting. The aluminum alloy includes, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, and no more than 0.5% of Mn, and at least one component selected from the group consisting of 0.002 to 0.02% of Na, 0.002 to 0.02% of Ca and 0.002 to 0.02% of Sr, a remainder being Al and inevitable impurities. An internal combustion engine cylinder head is composed of the aluminum alloy casting and manufactured by the method of the casting. The aluminum alloy casting is suitable for applications requiring superior elongation, high cycle fatigue strength and high thermal fatigue strength.Type: GrantFiled: March 7, 2014Date of Patent: November 28, 2017Assignees: NISSAN MOTOR CO., LTD., NIPPON LIGHT METAL COMPANY, LTD.Inventors: Hiroshi Souda, Kouichi Akiyama, Hiroshi Horikawa, Masahiko Shioda
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Publication number: 20160354983Abstract: The present invention relates to a method for manufacturing a fiber-reinforced composite material molding, having a step (A) for forming a plurality of partial preforms, each having a partial shape obtained by dividing the three-dimensional shape of a target fiber-reinforced composite material molding, by cutting a prepreg sheet containing reinforcing fibers and a matrix resin composition, and by preshaping the cut prepreg pieces; a step (B) for forming a preform having the three-dimensional shape of the target fiber-reinforced composite material molding by combining and integrating the plurality of partial preforms; and a step (C) for producing a fiber-reinforced composite material molding by compression-molding the preform, wherein the step (B) includes arranging a foamable material between the plurality of partial preforms when they are combined.Type: ApplicationFiled: February 19, 2015Publication date: December 8, 2016Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Yoshihide KAKIMOTO, Kazuhisa IKEDA, Kouichi AKIYAMA, Mitsuru KUTSUWADA
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Publication number: 20150209982Abstract: A manufacturing method for a molded article of a fiber-reinforced composite material obtains a molded article of a fiber-reinforced composite material having a three-dimensional shape by: preparing a sheet-shaped prepreg containing reinforcing fibers and a matrix resin composition; preliminarily shaping the prepreg to produce a plurality of partial preforms having shapes obtained by dividing the shape of the molded article; producing a first partial preform group and a second partial preform group, which have the shape of the molded article, by combining the plurality of partial preforms so that the ends thereof in the direction perpendicular to the thickness direction do not overlap in the thickness direction; producing a preform by bringing the first and second partial preform groups into close contact with each other in the thickness direction; and compression molding the preform using a molding die.Type: ApplicationFiled: September 10, 2013Publication date: July 30, 2015Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Mitsuru Kutsuwada, Kouichi Akiyama, Yoshihide Kakimoto, Kazuhisa Ikeda
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Patent number: 8999080Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.Type: GrantFiled: July 2, 2008Date of Patent: April 7, 2015Assignees: Nissan Motor Co., Ltd., Nippon Light Metal Company, Ltd.Inventors: Hiroshi Souda, Kouichi Akiyama, Hiroshi Horikawa, Masahiko Shioda
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Publication number: 20140182750Abstract: A method for manufacturing an aluminum alloy casting includes obtaining the aluminum alloy casting by casting an aluminum alloy into a mold, performing solution heat treatment, rapidly cooling the casting, performing aging treatment, and cooling the casting. The aluminum alloy includes, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, and no more than 0.5% of Mn, and at least one component selected from the group consisting of 0.002 to 0.02% of Na, 0.002 to 0.02% of Ca and 0.002 to 0.02% of Sr, a remainder being Al and inevitable impurities. An internal combustion engine cylinder head is composed of the aluminum alloy casting and manufactured by the method of the casting. The aluminum alloy casting is suitable for applications requiring superior elongation, high cycle fatigue strength and high thermal fatigue strength.Type: ApplicationFiled: March 7, 2014Publication date: July 3, 2014Applicants: NIPPON LIGHT METAL COMPANY, LTD., NISSAN MOTOR CO., LTD.Inventors: Hiroshi SOUDA, Kouichi AKIYAMA, Hiroshi HORIKAWA, Masahiko SHIODA
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Publication number: 20130296801Abstract: Embodiments of the present invention provide a syringe with a needle and method of forming thereof. The syringe with the needle includes a needle tube having a needle tip to puncture a living body and a syringe. The syringe further includes a main body filled with a drug, a fixing section for fixing the needle tube in a state where the needle tip of the needle tube being protruded, and a connecting section at which the fixing section and the main body are connected. The connecting section is provided with a holding hole into which a proximal portion of the needle tube is inserted. The needle tube and the fixing section are fixed by forming at least a portion of the fixing section from a resin composed of essentially the same material as the syringe, after the proximal portion of the needle tube has been inserted into the holding hole.Type: ApplicationFiled: November 25, 2011Publication date: November 7, 2013Applicant: TERUMO KABUSHIKI KAISHAInventor: Kouichi AKIYAMA
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Publication number: 20120083749Abstract: A syringe needle assembly includes a needle tube and a hub. The needle tube has a needle body provided with a needlepoint configured to puncture a living body. To prevent the needle tube from dropping out of a holding member in which the needle tube is held, the needle body also includes an axially press-worked enlarged portion that is continuous in the circumferential direction of the needle body. The hub includes a fitting portion to which the enlarged portion of the needle tube is fitted, and holds the needle tube.Type: ApplicationFiled: December 14, 2011Publication date: April 5, 2012Applicant: TERUMO KABUSHIKI KAISHAInventors: HIDEO KAWAMOTO, TETSUYA OYAUCHI, KOUICHI AKIYAMA
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Publication number: 20110021695Abstract: A urethane (meth)acrylate composition includes a product of a reaction of a polyester polyol made from a polycarboxylic acid and a polyhydric alcohol, a polyisocyanate, and an active hydrogen-containing (meth)acrylate. Part of the polyhydric alcohol is a diol having a straight chain of 3 to 7 carbon atoms and a side chain on the straight chain. The polyisocyanate includes at least one of hexamethylene diisocyanate, diphenylmethane diisocyanate, hydrogenated diphenylmethane diisocyanate, and tetramethylene diisocyanate.Type: ApplicationFiled: September 29, 2010Publication date: January 27, 2011Applicants: HITACHI KASEI POLYMER CO., LTD., NHK SPRING CO., LTD.Inventors: Kouichi Akiyama, Norihiro Fukuta, Masanori Sukenobu, Souichirou Komiya, Hiroyuki Fujita, Kenji Horie, Takako Oyama, Noriyuki Sera, Hisayoshi Makabe
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Publication number: 20090010799Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.Type: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Inventors: Hiroshi SOUDA, Kouichi AKIYAMA, Hiroshi HORIKAWA, Masahiko SHIODA
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Patent number: 7040615Abstract: Provided is a sheet discharge apparatus including a plurality of stackers on which a sheet discharged from a conveyance passage is stacked, and a gate which changes a discharge direction of the sheet. The gate can move over a first changeover position to guide the sheet to one stacker, and a second changeover position to guide the sheet to the other stacker. When the gate is moved to the second changeover position, the sheet is guided to the other stacker through a bent guide passage. A pressing mechanism is disposed on an upstream side along a conveyance direction of the sheet from the gate. The pressing mechanism applies a pressure and gives a wavy shape to the sheet, and temporarily makes the sheet rigid as long as the gate is in the first position.Type: GrantFiled: July 12, 2004Date of Patent: May 9, 2006Assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Kazuhiro Suzuki, Kouichi Akiyama
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Publication number: 20040251621Abstract: Provided is a sheet discharge apparatus including a plurality of stackers on which a sheet discharged from a conveyance passage is stacked, and a gate which changes a discharge direction of the sheet. The gate can move over a first changeover position to guide the sheet to one stacker, and a second changeover position to guide the sheet to the other stacker. When the gate is moved to the second changeover position, the sheet is guided to the other stacker through a bent guide passage. A pressing mechanism is disposed on an upstream side along a conveyance direction of the sheet from the gate. The pressing mechanism applies a pressure and gives a wavy shape to the sheet, and temporarily makes the sheet rigid as long as the gate is in the first position.Type: ApplicationFiled: July 12, 2004Publication date: December 16, 2004Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Kazuhiro Suzuki, Kouichi Akiyama
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Patent number: 6776408Abstract: Provided is a sheet discharge apparatus including a plurality of stackers on which a sheet discharged from a conveyance passage is stacked, and a gate which changes a discharge direction of the sheet. The gate can move over a first changeover position to guide the sheet to one stacker, and a second changeover position to guide the sheet to the other stacker. When the gate is moved to the second changeover position, the sheet is guided to the other stacker through a bent guide passage. A pressing mechanism is disposed on an upstream side along a conveyance direction of the sheet from the gate. The pressing mechanism applies a pressure and gives a wavy shape to the sheet, and temporarily makes the sheet rigid as long as the gate is in the first position.Type: GrantFiled: March 19, 2002Date of Patent: August 17, 2004Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Kazuhiro Suzuki, Kouichi Akiyama
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Publication number: 20020135124Abstract: Provided is a sheet discharge apparatus including a plurality of stackers on which a sheet discharged from a conveyance passage is stacked, and a gate which changes a discharge direction of the sheet. The gate can move over a first changeover position to guide the sheet to one stacker, and a second changeover position to guide the sheet to the other stacker. When the gate is moved to the second changeover position, the sheet is guided to the other stacker through a bent guide passage. A pressing mechanism is disposed on an upstream side along a conveyance direction of the sheet from the gate. The pressing mechanism applies a pressure and gives a wavy shape to the sheet, and temporarily makes the sheet rigid as long as the gate is in the first position.Type: ApplicationFiled: March 19, 2002Publication date: September 26, 2002Applicant: Toshiba Tec Kabushiki KaishaInventors: Kazuhiro Suzuki, Kouichi Akiyama
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Patent number: 6292650Abstract: An image forming apparatus is disclosed featuring a transfer portion arranged in an apparatus main body for transferring an image onto a paper sheet, a discharge roller pair for discharging the paper sheet from the apparatus main body when a single-sided image is formed or taking the paper sheet back into the apparatus main body when a two-sided image is formed, a re-transfer portion for re-transferring the paper sheet towards the transfer portion while keeping it in an inverted state, and a stretching portion for removing corrugation of the paper sheet by stretching it as it is transferred by the re-transfer portion.Type: GrantFiled: February 18, 2000Date of Patent: September 18, 2001Assignee: Toshiba TEC Kabushiki KaishaInventor: Kouichi Akiyama
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Patent number: 5883397Abstract: A plastic functional element comprising a lower electrode and a transparent upper electrode provided perpendicular to the contact surface between a first oxidation reduction material membrane and a second oxidation reduction material membrane, the oxidation reduction potentials of which being different each other, wherein, based on the difference in oxidation reduction potentials between the oxidation reduction material membranes, by irradiating light to the contact surface or applying a voltage between the electrodes, the condition of electron in the oxidation reduction material is controlled, so as to store information of incident light or applied voltage, and an operational function responding to an input voltage is given, thereby the minimization in size is possible to realize a high density and high speed operation.Type: GrantFiled: May 23, 1997Date of Patent: March 16, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Satoru Isoda, Hiroaki Kawakubo, Satoshi Nishikawa, Kouichi Akiyama
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Patent number: 4991954Abstract: An apparatus for detecting ophthalmic diseases such as an inflammation in a patient's eye which includes means for focusing a linearly polarized laser beam at a selected spot in the eye. The light scattered from the eye is photoelectrically detected and converted into an electrical signal which is subsequently used to determine the protein concentration essential to ophthalmic disease detection in the patient's eye. The laser beam of linear polarization projected on the spot to be measured only contains substantially the same linear polarization component as that contained in the light scattered from the patient's eye. In the apparatus, light adjusting and/or regulating means are provided to adjust the quantity of light impinging on a detector or the intensity of the laser beam produced from the laser source.Type: GrantFiled: October 30, 1989Date of Patent: February 12, 1991Assignee: Kowa Company Ltd.Inventor: Kouichi Akiyama
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Patent number: 4830494Abstract: Disclosed is a method and apparatus for measuring particles in a fluid by irradiating the fluid containing the particle with a laser beam and analyzing the laser light scattered by the particle to determine the characteristics of the particle. An elliptical laser beam is projected into a particle detection area in which the particles to be measured are caused to flow. The laser light scattered by the particle is received for photoelectric conversion into a time-series photoelectric signal in a direction along which the particle flows. The photoelectric signal is subjected to a moving average process to determine a time width during which the signal exceeds a predetermined level to cause the change in intensity of the scattered light. This change is recognized as a change in intensity caused by the passage of the particle through the particle detection area when the time width falls within a certain range.Type: GrantFiled: July 9, 1987Date of Patent: May 16, 1989Assignee: Kowa Company Ltd.Inventors: Muneharu Ishikawa, Kouichi Akiyama, Eiichi Ito, Masunori Kawamura, Akihiro Fujita