Patents by Inventor Keiichi Asami
Keiichi Asami 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: 10494274Abstract: Sterilization of a liquid substance is performed by causing cavitation in the liquid substance by stirring the liquid substance with a rotary blade of a suction stirring pump and generating plasma with a plasma generation mechanism in air bubbles generated in the liquid substance by the cavitation.Type: GrantFiled: March 24, 2017Date of Patent: December 3, 2019Assignees: NIHON SPINDLE MANUFACTURING CO., LTD., UNIVERSITY OF HYOGOInventors: Keiichi Asami, Keiichiro Onishi, Yoshihiro Oka
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Publication number: 20190322551Abstract: There is provided an in-liquid plasma device including a tubular flow channel in which a liquid flow, and a cavitation generator and a voltage application unit which are disposed in the tubular flow channel. The cavitation generator generates cavitation in the liquid inside the tubular flow channel. The voltage application unit is located in the tubular flow channel so as to generate plasma by applying a voltage to the liquid in which the cavitation is generated. The cavitation generator has a throttle portion whose inner diameter is smaller than other sites in the tubular flow channel. The throttle portion has an upstream side inclined surface located on an upstream side of a narrowest site of the throttle portion, and a downstream side inclined surface located on a downstream side of the narrowest site of the throttle portion.Type: ApplicationFiled: July 3, 2019Publication date: October 24, 2019Inventors: Keiichi Asami, Keiichiro Onishi
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Publication number: 20190296355Abstract: A method for manufacturing a slurry for a positive electrode of a nonaqueous electrolyte secondary battery using an aqueous solvent containing an alkali metal complex oxide, includes: while causing a raw material slurry containing a solid content and the solvent as slurry raw materials for a positive electrode of the nonaqueous electrolyte secondary battery to flow along a path, performing a neutralization treatment on an alkali component in the raw material slurry by inorganic carbon supplied to the raw material slurry flowing along the path.Type: ApplicationFiled: June 11, 2019Publication date: September 26, 2019Inventors: Keiichi Asami, Keiichiro Onishi
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Publication number: 20190262943Abstract: An optical unit includes: a first optical device holding body that is sleeve-shaped and includes a first holding portion configured to hold therein at least one first optical device, and a first fitting portion extending from the first holding portion; a second optical device holding body that is sleeve-shaped and includes a second holding portion configured to hold therein at least one second optical device, and a second fitting portion extending from the second holding portion; and a welded portion that is melted and solidified over the first fitting portion and the second fitting portion in an overlapping portion between the first fitting portion and the second fitting portion. A first welding width at a center of the first fitting portion and a second welding width at a center of the second fitting portion are substantially identical in the optical axis direction of the optical unit.Type: ApplicationFiled: May 9, 2019Publication date: August 29, 2019Applicant: OLYMPUS CORPORATIONInventors: Keiichi ASAMI, Junichi OKUBO
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Publication number: 20180221832Abstract: A slurry manufacturing apparatus includes a rotation-revolution mixing device which mixes and prepares a slurry by rotational movement and revolving movement and a gas injection mechanism which dissolves carbonic acid gas in the slurry prepared by the rotation-revolution mixing device, in which the gas injection mechanism dissolves the carbonic acid gas in the slurry by injecting the carbonic acid gas under pressure in a sealed state.Type: ApplicationFiled: February 6, 2018Publication date: August 9, 2018Inventors: Keiichiro Onishi, Keiichi Asami
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Publication number: 20180183047Abstract: Provided is a method for manufacturing a slurry for a positive electrode of a nonaqueous electrolyte secondary battery containing an alkali metal complex oxide, the method making it possible to reliably deaerate surplus carbonic acid gas after an alkali component of a slurry containing the alkali metal complex oxide is neutralized within a short period of time. The method for manufacturing a slurry for a positive electrode of a nonaqueous electrolyte secondary battery includes a step of manufacturing an electrode slurry including a step of performing a neutralization treatment on an alkali component in the slurry by using inorganic carbon dissolved in a solvent of the slurry and a step of deaerating the inorganic carbon in the slurry as carbonic acid gas by causing cavitation.Type: ApplicationFiled: February 20, 2018Publication date: June 28, 2018Inventors: Taichi Sakamoto, Takashi Mukai, Yuta Ikeuchi, Naoto Yamashita, Masahiro Yanagida, Keiichi Asami, Keiichiro Onishi
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Publication number: 20180050317Abstract: Nanoparticles are synthesized by suctioning a liquid under a negative pressure with a negative-pressure suction force caused by the rotation of a rotary blade, causing cavitation by stirring the suctioned liquid by the rotary blade, generating plasma generated by a plasma generation mechanism in air bubbles generated in the liquid, and in that case, consuming an electrode containing elements constituting the nanoparticles to be synthesized.Type: ApplicationFiled: June 27, 2017Publication date: February 22, 2018Inventors: Keiichi Asami, Keiichiro Onishi, Yoshihiro Oka
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Publication number: 20170341040Abstract: In order to provide a dispersion method and a dispersion apparatus capable of mixing a material to be processed and a dispersion medium having no affinity with each other using a single apparatus without using a dispersant, there are provided a quantitative supply mechanism quantitatively supplying a material to be processed, a suction stirring mechanism primarily including a suction stirring pump in which the material to be processed and a dispersion medium are subjected to negative pressure suction by a negative pressure suction force generated by rotation of a rotating blade and the suctioned material to be processed and the dispersion medium are stirred and mixed by the rotating blade and are allowed to pass through a throttle passage to cause cavitation, and a plasma generating mechanism generating a plasma in bubbles formed due to cavitation in a mixed liquid of the material to be processed and the dispersion medium.Type: ApplicationFiled: July 31, 2017Publication date: November 30, 2017Inventors: Keiichi Asami, Yoshihiro Oka, Yoshimi Nishimura, Tomohiro Hashimoto, Katsuhiko Yonezawa
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Publication number: 20170275187Abstract: Sterilization of a liquid substance is performed by causing cavitation in the liquid substance by stirring the liquid substance with a rotary blade of a suction stirring pump and generating plasma with a plasma generation mechanism in air bubbles generated in the liquid substance by the cavitation.Type: ApplicationFiled: March 24, 2017Publication date: September 28, 2017Inventors: Keiichi Asami, Keiichiro Onishi, Yoshihiro Oka
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Patent number: 9731440Abstract: A molding material comprising the following components (A) to (D) at the following ratios, in which the component (D) is bonded to a composite comprising the components (A) to (C) and the order in the weight average molecular weight is component (D)>component (B)>component (C); (A) 1 to 75 wt % of a reinforcing fiber bundle; (B) 0.01 to 10 wt % of a first propylene-based resin; (C) 0.01 to 10 wt % of a second propylene-based resin having carboxylate groups bound to the polymer chains thereof; and (D) 5 to 98.98 wt % of a third propylene-based resin. A molding material of this invention provides a long fiber-reinforced thermoplastic resin molding material containing a propylene-based resin as the matrix resin, which allows the reinforcing fibers to be well dispersed into the molded article produced at the time of injection molding and allows the molded article produced to have excellent mechanical properties.Type: GrantFiled: December 24, 2009Date of Patent: August 15, 2017Assignee: Toray Industries, Inc.Inventors: Masato Honma, Atsuki Tsuchiya, Keiichi Asami
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Patent number: 9133317Abstract: There is provided a coating material comprising a mixture of a water-based resin composition of a thermoplastic elastomer (A) and/or a thermoplastic elastomer (B) in which at least one moiety is modified with a functional group; one of a water-based resin composition of a resin (G) formed from a copolymerizable monomer (G-1) which includes a monomer having an ?,?-monoethylenic unsaturated group and other copolymerizable monomer, and a water-based resin composition of an urethane resin (U); and a water-based resin composition of a petroleum-based hydrocarbon resin (D) and/or a rosin-based resin (E) and/or a terpene-based resin (F). The coating material causing no separation phenomenon provides a coating composition or a primer with which spray coating is possible, and is a completely water-based coating material exhibiting an excellent adhesivity to a molded article of various resins such as polyolefin and a synthetic rubber or to metals such as a steel plate and aluminum.Type: GrantFiled: December 26, 2006Date of Patent: September 15, 2015Assignee: MITSUI CHEMICALS, INC.Inventors: Keiichi Asami, Masako Yoshida
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Publication number: 20150145241Abstract: The member joining method including: a member disposing process of disposing the first member and the second member such that the first plate-shaped section and the second plate-shaped section overlap in a thickness direction, a first laser radiating process of forming a melted section by radiating a laser beam to the first plate-shaped section overlapping the second plate-shaped section, and a second laser radiating process of, after solidifying the melted section to form a melted solidification section, radiating a laser beam to a surface of the melted solidification section so as to forcus the laser beam on the first plate-shaped section through the melted solidification section, melting the melted solidification section and the second plate-shaped section opposite to the melted solidification section to form a welding section formed of an alloy thereof, and joining the first plate-shaped section and the second plate-shaped section via the welding section.Type: ApplicationFiled: February 5, 2015Publication date: May 28, 2015Inventors: KEIICHI ASAMI, Tomonori Imamura, Kinji Takiguchi
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Patent number: 8534785Abstract: An inkjet printer includes an ink circulation path, a first tank, a second tank, and a pump, first and second liquid surface detectors which respectively detect ink liquid surfaces in the first and second tanks, an ink supply unit, a supplementary feed valve a control unit, a storage unit, and a determination unit. During ink circulation, the storage unit accumulatively stores a detection result of the second detector. Based on the result, the determination unit determines occurrence of an abnormality in the second liquid surface detector. The storage unit thereafter accumulatively stores the detection result. Based on the result, the determination unit determines occurrence of the first liquid surface detector.Type: GrantFiled: January 26, 2012Date of Patent: September 17, 2013Assignee: Riso Kagaku CorporationInventor: Keiichi Asami
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Patent number: 8530565Abstract: [Object] The invention provides a fiber reinforced propylene resin composition having interfacial adhesion between a propylene resin and a reinforcing fiber and capable of preparing molded articles having high mechanical properties. [Means for Achieving the Object] The fiber reinforced propylene resin composition comprises: (A) 1 to 75% by weight of a reinforcing fiber, (B) 0.01 to 10% by weight of a first propylene resin containing 50 to 99% by mol of a constituting unit derived from propylene of an olefin component, (C) 0.01 to 10% by weight of a second propylene resin at least containing a carboxylic acid salt bonded to a polymer chain and (D) 5 to 98.98% by weight of a third propylene resin, wherein the order of the weight average molecular weights Mw of the components (B), (C) and (D) satisfy the following relation; component (D)>component (B)>component (C).Type: GrantFiled: December 24, 2009Date of Patent: September 10, 2013Assignees: Mitsui Chemicals, Inc., Toray Industries, Inc.Inventors: Masato Honma, Atsuki Tsuchiya, Keiichi Asami
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Patent number: 8507603Abstract: A solvent dispersion of a composite resin which comprises a solvent and a composite resin comprising a thermoplastic elastomer (A) and a polymer of copolymerizable monomers (B) comprising a monomer having an ?,?-monoethylenically unsaturated group and other copolymerizable monomer(s), wherein the thermoplastic elastomer (A) is a propylene-based elastomer having a molecular weight distribution (Mw/Mn) of not more than 3 as measured by gel permeation chromatography (GPC), and the copolymerizable monomers (B) include at least one monomer containing no functional groups; and uses of the dispersion. The dispersion can be used to provide a coating material, primer, adhesive, additive, binder, film, and primer for strippable paints and traffic paints, which have excellent adhesiveness to various materials.Type: GrantFiled: November 5, 2010Date of Patent: August 13, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Keiichi Asami, Kunihiko Takeuchi
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Patent number: 8403467Abstract: An ink jet printer has an ink circulation unit including an image recording unit to discharge ink to perform image recording on a recording medium; a first tank disposed above the image recording unit in a gravitational force direction to supply the ink to the image recording unit through a first ink path; a second tank disposed below the image recording unit in the gravitational force direction to collect the ink that was not discharged from the image recording unit through the second ink path; a pump to send the ink from the second tank to the first tank through a third ink path, and at least a part of the first ink path connecting the first tank and the image recording unit is positioned below an ink liquid level in the second tank in the gravitational force direction.Type: GrantFiled: March 21, 2011Date of Patent: March 26, 2013Assignee: Riso Kagaku CorporationInventor: Keiichi Asami
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Publication number: 20120268507Abstract: An inkjet printer includes an ink circulation path, a first tank, a second tank, and a pump, first and second liquid surface detectors which respectively detect ink liquid surfaces in the first and second tanks, an ink supply unit, a supplementary feed valve a control unit, a storage unit, and a determination unit. During ink circulation, the storage unit accumulatively stores a detection result of the second detector. Based on the result, the determination unit determines occurrence of an abnormality in the second liquid surface detector. The storage unit thereafter accumulatively stores the detection result. Based on the result, the determination unit determines occurrence of the first liquid surface detector.Type: ApplicationFiled: January 26, 2012Publication date: October 25, 2012Applicant: RISO KAGAKU CORPORATIONInventor: Keiichi ASAMI
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Patent number: 8197046Abstract: In an ink-jet printer of the present invention, an ink circulation path 4 is formed by an ink head 2, a first tank 31, a second tank 32, and a pump 33. The ink-jet printer switches between an ink-circulation state and a no ink-circulation state during a printing operation, and is capable of performing printing in either of the states.Type: GrantFiled: December 23, 2009Date of Patent: June 12, 2012Assignee: Riso Kagaku CorporationInventor: Keiichi Asami
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Publication number: 20120015186Abstract: A molding material comprising the following components (A) to (D) at the following ratios, in which the component (D) is bonded to a composite comprising the components (A) to (C) and the order in the weight average molecular weight is component (D)>component (B)>component (C); (A) 1 to 75 wt % of a reinforcing fiber bundle; (B) 0.01 to 10 wt % of a first propylene-based resin; (C) 0.01 to 10 wt % of a second propylene-based resin having carboxylate groups bound to the polymer chains thereof; and (D) 5 to 98.98 wt % of a third propylene-based resin. A molding material of this invention provides a long fiber-reinforced thermoplastic resin molding material containing a propylene-based resin as the matrix resin, which allows the reinforcing fibers to be well dispersed into the molded article produced at the time of injection molding and allows the molded article produced to have excellent mechanical properties.Type: ApplicationFiled: December 24, 2009Publication date: January 19, 2012Applicant: TORAY INDUSTRIES, INC.Inventors: Masato Honma, Atsuki Tsuchiya, Keiichi Asami
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Publication number: 20110263778Abstract: [Object] The invention provides a fiber reinforced propylene resin composition having interfacial adhesion between a propylene resin and a reinforcing fiber and capable of preparing molded articles having high mechanical properties. [Means for Achieving the Object] The fiber reinforced propylene resin composition comprises: (A) 1 to 75% by weight of a reinforcing fiber, (B) 0.01 to 10% by weight of a first propylene resin containing 50 to 99% by mol of a constituting unit derived from propylene of an olefin component, (C) 0.01 to 10% by weight of a second propylene resin at least containing a carboxylic acid salt bonded to a polymer chain and (D) 5 to 98.98% by weight of a third propylene resin, wherein the order of the weight average molecular weights Mw of the components (B), (C) and (D) satisfy the following relation; component (D)>component (B)>component (C).Type: ApplicationFiled: December 24, 2009Publication date: October 27, 2011Inventors: Masato Honma, Atsuki Tsuchiya, Keiichi Asami