Patents by Inventor Makoto Nagase
Makoto Nagase 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).
-
Patent number: 8939559Abstract: A non-aqueous cleaning liquid which is used for cleaning an ink flow path, through which a non-aqueous ink is circulated, in an ink jet recording apparatus including the ink flow path and with which a container composed of polyolefin is filled, includes a pigment and an organic solvent. In the non-aqueous cleaning liquid, a content of the pigment is 0.001% by mass to 0.5% by mass and an average particle size (d50) of the pigment is 10 nm to 500 nm.Type: GrantFiled: November 29, 2012Date of Patent: January 27, 2015Assignee: Seiko Epson CorporationInventors: Keiji Iida, Kenichiro Kubota, Akihito Sao, Makoto Nagase, Maki Ito
-
Publication number: 20140333696Abstract: The ink composition for ink jet recording according to the invention includes a coloring material, a cyclic ester, a first organic solvent having a flash point of 70° C. or less and represented by Formula (I): R1—O—(R2—O)2—R3??(I) (wherein, R1 represents an alkyl group having 1 to 4 carbon atoms; R2 represents an ethylene group or a propylene group; and R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms), and a second organic solvent having a flash point of 90° C. or more. The cyclic ester has a content “a” (% by mass) of 6% by mass or more and 30% by mass or less. The content “a” (% by mass) of the cyclic ester, the content “b” (% by mass) of the first organic solvent, and the content “c” (% by mass) of the second organic solvent satisfy a relationship represented by Expressions (1) and (2): a<b??(1) c<(a+b)/2??(2).Type: ApplicationFiled: May 9, 2014Publication date: November 13, 2014Applicant: Seiko Epson CorporationInventors: Makoto Nagase, Akihito Sao, Kenichiro Kubota, Kenichi Numakura, Jun Ito
-
Patent number: 8858696Abstract: The nonaqueous ink composition for ink jet recording according to the invention includes a compound represented by the General Formula (1) below; and a compound represented by the General Formula (2A) or the General Formula (2B) below. In the General Formula (1), R1 represents an alkyl group having 1 to 4 carbon atoms, and R2 and R3 represent a methyl group or an ethyl group; in the General Formula (2A), R4A represents an alkyl group having 5 to 9 carbon atoms, and R5A represents a methyl group or an ethyl group; in the General Formula (2B), R4B represents an alkylene group having 2 to 5 carbon atoms, and R5B and R6B each independently represent alkyl groups having 1 to 4 carbon atoms.Type: GrantFiled: January 25, 2013Date of Patent: October 14, 2014Assignee: Seiko Epson CorporationInventors: Akihito Sao, Maki Nariai, Makoto Nagase, Keiji Iida, Tomoki Shinoda, Kenichiro Kubota
-
Patent number: 8821973Abstract: Both ends of a circulation pipe of a film formation apparatus are connected to a piping of a BWR plant. A chemical including chromium ions and formic acid is injected into a film formation solution flowing in the circulation pipe heated to a temperature within a range from 60° C. to 100° C. Furthermore, a chemical including iron (II) ions and formic acid, hydrogen peroxide, and hydrazine are injected into the circulation pipe. Due to the injection of these chemicals, a film formation solution of pH 7.0 including iron (II) ions, chromium ions, formic acid, hydrogen peroxide, and hydrazine is generated in the circulation pipe. This film formation solution includes hydrazine of, for example, 1000 ppm. The film formation solution is supplied to the piping, thus, a Fe3—xCrxO4 film (here, 0<X?0.1) is formed on the inner surface of the piping. The above method of forming the ferrite film on a structural member (for example, the piping) can be shortened time required to form the ferrite film.Type: GrantFiled: May 16, 2011Date of Patent: September 2, 2014Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Tsuyoshi Ito, Hideyuki Hosokawa, Yukio Hirama, Makoto Nagase
-
Patent number: 8708440Abstract: An ink jet printing apparatus includes a printing unit having a printing head that discharges an ink onto a surface of a material to be subjected to printing being transported by a transport device to thereby print a predetermined pattern, and an ink fixing unit that solidifies and fixes the ink applied to the material, the fixing unit being located downstream of the printing unit in a transport direction of the material, and an ink removal unit that removes, in the case where the material has a nap on a surface thereof and a pigment ink is employed for printing, an unsolidified ink stuck to the nap. The ink removal unit is located between the printing unit and the ink fixing unit, and includes an ink removing element that contacts the nap on the surface so as to remove the ink stuck to the nap.Type: GrantFiled: November 21, 2011Date of Patent: April 29, 2014Assignee: Seiko Epson CorporationInventor: Makoto Nagase
-
Publication number: 20140107007Abstract: An ink jet cleaning solution is provided for washing off a non-aqueous ink and an aqueous ink. The cleaning solution contains an organic solvent and water. The organic solvent has an SP value between the weighted average S1 of the SP values of the organic solvents in the non-aqueous ink and the weighted average S2 of the SP values of the organic solvents in the aqueous ink. Also, the weighted average of the SP values of the organic solvent and the water in the cleaning solution is in the range between S1 and S2.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Applicant: SEIKO EPSON CORPORATIONInventors: Akihito Sao, Makoto Nagase, Kenichiro Kubota
-
Patent number: 8652272Abstract: A bath containing nickel ions and formic acid is injected into a film-forming aqueous solution flowing in a circulation pipe connected to a feed water pipe made of carbon steel in a BWR plant. This solution is supplied into the pipe through the circulation pipe, and a nickel metal film is formed on an inner surface of the pipe. After the film is formed, a film-forming aqueous solution containing iron (II) ions, formic acid, nickel ions, hydrogen peroxide, and hydrazine is supplied to the pipe. A nickel ferrite film is formed on the surface of the nickel metal film in the pipe. The nickel ferrite film comes into contact with water containing dissolved oxygen at or above 150° C. to transform the nickel metal film into a nickel ferrite film. A thick nickel ferrite film is formed on the inner surface of the feed water pipe.Type: GrantFiled: January 22, 2013Date of Patent: February 18, 2014Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Tsuyoshi Ito, Hideyuki Hosokawa, Yukio Hirama, Motoaki Sakashita, Makoto Nagase
-
Patent number: 8652271Abstract: A bath containing nickel ions and formic acid is injected into a film-forming aqueous solution flowing in a circulation pipe connected to feed water pipe made of carbon steel in a BWR plant. This film-forming aqueous solution is supplied into the feed water pipe through the circulation pipe, and then, a nickel metal film is formed on an inner surface of the feed water pipe. After the nickel metal film is formed, a film-forming aqueous solution containing iron (II) ions, formic acid, nickel ions, hydrogen peroxide, and hydrazine is supplied to the feed water pipe. A nickel ferrite film is formed on the surface of the nickel metal film in the feed water pipe. Then, the nickel ferrite film is come into contact with water containing dissolved-oxygen at 150° C. or above to transform the nickel metal film into a nickel ferrite film. A thick nickel ferrite film is formed on the inner surface of the feed water pipe. Corrosion of the carbon steel member composing the plant can further reduce.Type: GrantFiled: August 3, 2010Date of Patent: February 18, 2014Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Tsuyoshi Ito, Hideyuki Hosokawa, Yukio Hirama, Motoaki Sakashita, Makoto Nagase
-
Publication number: 20140037037Abstract: A noble metal injection apparatus is connected to a piping of a nuclear plant at the time of stop of the nuclear plant before start of the nuclear plant. In chemical decontamination, oxidation decontamination agent decomposition, and reduction decontamination on an inner surface of the pipe system are executed. After reduction decontamination, a part of an oxalic acid included in a reduction decontamination solution is decomposed and platinum is injected into the reduction decontamination solution of pH 3.5 or higher. When the platinum concentration becomes a preset concentration, a reduction agent is injected and the reduction decontamination solution including the platinum and reduction agent is brought into contact with the inner surface of the piping. The platinum is deposited on the inner surface of the piping. The injection of the platinum and reduction agent is stopped and the platinum and reduction agent are decomposed.Type: ApplicationFiled: November 16, 2012Publication date: February 6, 2014Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.Inventors: Tsuyoshi ITO, Hideyuki HOSOKAWA, Makoto NAGASE, Yoichi WADA, Kazushige ISHIDA, Motohiro AIZAWA
-
Patent number: 8613509Abstract: An Ink jet recording ink composition contains a dispersion containing a pigment dispersible in water therein and having an average particle size in the range of 20 to 300 nm, water, and a polyurethane resin containing a compound expressed by formula (I) and/or a compound expressed by formula (II): where N represents an integer in the range of 1 to 6. where O+P+Q is an integer in the range of 0 to 6.Type: GrantFiled: May 25, 2011Date of Patent: December 24, 2013Assignee: Seiko Epson CorporationInventors: Makoto Nagase, Masahiro Yatake
-
Publication number: 20130293643Abstract: Disclosed is ink composition used in a recording apparatus provided with a pressure regulation valve which performs opening and closing operations to adjust a pressure in a recording head and is covered with an elastic member. The ink composition includes a slip agent and a lactone system medium. The slip agent is preferably at least one kind selected from a group consisting of a silicon system compound, a hydrocarbon system compound, a fluorine system compound, an amide system compound, and acrylic compound. In addition, the content of the slip agent is preferably not more than 1% by mass.Type: ApplicationFiled: March 28, 2013Publication date: November 7, 2013Applicant: Seiko Epson CorporationInventors: Tomoki SHINODA, Akihito SAO, Keiji IIDA, Makoto NAGASE, Miho NAKAMURA, Kenichiro KUBOTA
-
Publication number: 20130286117Abstract: An ink set for ink jet recording is provided, the ink set containing a first ink which contains a first pigment and a second ink which contains a second pigment, wherein each of the first and second inks contains polyester-modified polydialkylsiloxane.Type: ApplicationFiled: March 27, 2013Publication date: October 31, 2013Applicant: Seiko Epson CorporationInventors: Akihito SAO, Makoto NAGASE, Kenichiro KUBOTA
-
Patent number: 8494107Abstract: A formic acid aqueous solution that contains Fe (II) ions is produced by dissolving metal iron in a formic acid aqueous solution. Nitrogen is supplied from a nitrogen supply device to a chemical liquid tank and then discharged from a discharge line to reduce the dissolved oxygen concentration in the aqueous solution. The chemical liquid tank is filled with the formic acid aqueous solution sealed with nitrogen, and is transferred from a factory to a nuclear reactor building designated as radiation-controlled areas. Inside the nuclear reactor building, the chemical liquid tank is installed in a film deposition apparatus connected to a reactor water recirculation pipeline. The formic acid aqueous is supplied from the chemical liquid tank to the inside of the reactor water recirculation pipeline, and then a ferrite film is formed on the inner surface of the reactor water recirculation pipeline.Type: GrantFiled: April 30, 2008Date of Patent: July 23, 2013Assignee: Hitachi, Ltd.Inventors: Hideyuki Hosokawa, Makoto Nagase, Satoshi Morisawa, Motoaki Sakashita, Katsuo Yokota
-
Patent number: 8457270Abstract: A method of suppressing deposition of radionuclides on components of a nuclear power plant comprises forming a ferrite film by contacting a first chemical including iron (II) ions, a second chemical for oxidizing the iron (II) ions to iron (III) ions, and a third chemical for adjusting the pH of a processing solution containing a mixture of the first and second chemicals to be 5.5 to 9.0 with the metal member surface in a time period from a finishing stage in decontamination step of removing contaminants formed on the surface of metal member composing the nuclear power plant, and suppressing deposition of radionuclides on the metal member by the ferrite film.Type: GrantFiled: January 4, 2011Date of Patent: June 4, 2013Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Hideyuki Hosokawa, Makoto Nagase, Kazushige Ishida, Yoichi Wada, Naoshi Usui, Motohiro Aizawa, Motomasa Fuse
-
Publication number: 20120298875Abstract: In a radiation measurement apparatus, an analog pulse signal output from a semiconductor radiation detector is converted to a plurality of digital signals by an analog-to-digital converter for each analog pulse signal. A threshold circuit for inputting these digital signals discriminates digital signals exceeding a threshold value. A digital signal integration circuit integrates the plurality of discriminated digital signals for each analog pulse signal and obtains an integrated value for each analog pulse signal. A spectrum generation circuit for inputting the respective integrated values generates a radiation energy spectrum using the integrated values and accurately performs the quantitative analysis and energy analysis of a radioactive nuclide using the radiation energy spectrum. A quantitative analysis and an energy analysis of a radioactive nuclide can be accurately performed while a time resolution of a radiation detector can be maintained.Type: ApplicationFiled: April 26, 2012Publication date: November 29, 2012Applicant: Hitachi, Ltd.Inventors: Katsunori UENO, Takahiro Tadokoro, Hiroshi Kitaguchi, Mizuho Tsuyuki, Nobuyuki Ota, Makoto Nagase
-
Publication number: 20120236069Abstract: An ink jet textile printing apparatus includes a textile printing head having a nozzle line for discharging a coating solution containing an abrasion resistance-improving resin in a content of A and a textile printing head having a nozzle line for discharging an ink containing the abrasion resistance-improving resin in a content of B, wherein the content A and the content B satisfy a relationship of A>B.Type: ApplicationFiled: March 15, 2012Publication date: September 20, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Makoto Nagase
-
Publication number: 20120236058Abstract: In printing on a material to be printed having fluff, printing with high image quality is performed while maintaining the texture of the fluff. An ink jet printing apparatus has a first printing head having an ink nozzle array for ejecting an ink containing a color material, a second printing head having a clear liquid nozzle array for ejecting a clear liquid not containing a color material and having better wettability to the material to be printed than the ink, and a control portion which controls the ejection of the ink and the clear liquid, in which the control portion has a printing execution mode in which either the ink or the clear liquid is ejected, and thereafter the other one is ejected thereon while the printing heads are relatively moving in one direction over a predetermined range of the material to be printed.Type: ApplicationFiled: March 12, 2012Publication date: September 20, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Makoto NAGASE
-
Patent number: 8259894Abstract: A formic acid aqueous solution that contains Fe (II) ions is produced by dissolving metal iron in a formic acid aqueous solution. Nitrogen is supplied from a nitrogen supply device to a chemical liquid tank and then discharged from a discharge line to reduce the dissolved oxygen concentration in the aqueous solution. The chemical liquid tank is filled with the formic acid aqueous solution sealed with nitrogen, and transferred from a factory to a nuclear reactor building designated as radiation-controlled areas. Inside the nuclear reactor building, the chemical liquid tank is installed in a film deposition apparatus connected to a reactor water recirculation pipeline. The formic acid aqueous is supplied from the chemical liquid tank to the inside of the reactor water recirculation pipeline, and then a ferrite film is formed on the inner surface of the reactor water recirculation pipeline.Type: GrantFiled: June 26, 2007Date of Patent: September 4, 2012Assignee: Hitachi, Ltd.Inventors: Hideyuki Hosokawa, Makoto Nagase, Satoshi Morisawa, Motoaki Sakashita, Katsuo Yokota
-
Publication number: 20120127223Abstract: An ink jet printing apparatus includes a printing unit having a printing head that discharges an ink onto a surface of a material to be subjected to printing being transported by a transport device to thereby print a predetermined pattern, and an ink fixing unit that solidifies and fixes the ink applied to the material, the fixing unit being located downstream of the printing unit in a transport direction of the material, and an ink removal unit that removes, in the case where the material has a nap on a surface thereof and a pigment ink is employed for printing, an unsolidified ink stuck to the nap. The ink removal unit is located between the printing unit and the ink fixing unit, and includes an ink removing element that contacts the nap on the surface so as to remove the ink stuck to the nap.Type: ApplicationFiled: November 21, 2011Publication date: May 24, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Makoto NAGASE
-
Patent number: 8175211Abstract: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.Type: GrantFiled: June 18, 2008Date of Patent: May 8, 2012Assignee: Hitachi-Ge Nuclear Energy, Ltd.Inventors: Kazushige Ishida, Yoichi Wada, Makoto Nagase, Masahiko Tachibana, Masao Endo, Motomasa Fuse, Naoshi Usui, Motohiro Aizawa
