Patents by Inventor Naoaki Sakurai

Naoaki Sakurai 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).

  • Publication number: 20120135135
    Abstract: In applying a coating liquid including a solute and a solvent onto a given area on a substrate so as to allow the coating liquid to be solidified on the substrate by volatizing the solvent, an atmosphere in a vicinity of a coated area of the substrate is kept under an atmosphere that reduces volatilization of the solvent until applying the coating liquid onto the given area of the substrate is finished.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoaki SAKURAI, Tsuyoshi Sato, Masakuni Ikagawa
  • Publication number: 20120067847
    Abstract: According to one embodiment, an apparatus of processing a substrate includes a treatment chamber, a holder, a feed device, and a temperature control device. The holder is provided in the treatment chamber and is configured to rotatably hold the substrate. The feed device includes a nozzle configured to eject an etching solution to a surface of the substrate held by the holder. The temperature control device includes first and second devices, and a controller. The first device is configured to heat and/or cool an atmosphere inside the treatment chamber. The second device is configured to heat and/or cool the etching solution. The controller is configured to control operation of the first and second devices such that a temperature of the atmosphere is higher than that of the etching solution in the nozzle and that difference between the temperature of the atmosphere and that of the etching solution is maintained constant.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 22, 2012
    Inventors: Naoaki Sakurai, Hideaki Hirabayashi
  • Patent number: 8136920
    Abstract: A nozzle plate includes: a first silicon layer; a glass layer; a second silicon layer provided between the first silicon layer and the glass layer, the second silicon layer being bonded to the glass layer; and a silicon oxide layer provided between the first silicon layer and the second silicon layer. A nozzle hole passing through the first silicon layer and discharging a droplet is formed. A channel passing through the silicon oxide layer and the second silicon layer and communicating with the nozzle hole is formed. A liquid chamber formed in the glass layer and communicating with the channel is formed.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 20, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Junsei Yamabe, Hiroshi Koizumi
  • Patent number: 8132903
    Abstract: An ink jet system according to the present invention is provided with an air bubble removing unit including: an ink jet body having a plurality of ink supply path; a nozzle plate connected to an end of the ink jet body and having a plurality of spaced nozzle holes therein; and a cap configured to cover the nozzle holes formed in the nozzle plate wherein a first ink channel space is formed continuous to the nozzle holes and the plurality of ink supply path, and a second ink channel space is formed between a recess of the cap and a surface of the nozzle plate, so that the second ink channel space and the first ink channel space are continuous through the nozzle holes.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: March 13, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Tsuyoshi Sato, Hiroyasu Kondo
  • Patent number: 8039858
    Abstract: In a fluorescer solution, a plurality of types of fluorescent particles are contained in a resin liquid. Average particle sizes of these fluorescent particles decrease as densities of the types increase. In other words, average settling rates vs of the types of the fluorescent particles ascertained by v s = D p 2 × ( ? p - ? f ) × g 18 × ? are equal to each other, where Dp is an average particle size of each of the types of fluorescent particles, pp is a density of each of the types of fluorescent particles, pf is a density of the resin liquid, ? is a viscosity of the resin liquid, g is the acceleration due to gravity, and vs is an average settling rate of each of the types of fluorescent particles.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: October 18, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Junsei Yamabe, Hiroshi Koizumi
  • Publication number: 20110234477
    Abstract: According to one embodiment, an organic light emitting device includes: a base material having flexibility; an organic light emitting element provided on the base material; and a protection film that covers the organic light emitting element. The protection film includes: a first inorganic layer that is provided on the organic light emitting element, and covers the organic light emitting element; a flexible layer that is provided on the first inorganic layer, contains an organic polymer, and has flexibility; and a second inorganic layer that is provided on the flexible layer, and covers the flexible layer.
    Type: Application
    Filed: January 11, 2011
    Publication date: September 29, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Junji SANO, Masato Sawada, Naoaki Sakurai
  • Publication number: 20110204490
    Abstract: According one embodiment, a film forming apparatus includes a stage, a coating section, a vapor supply section, a blower section, and a controller. On the stage, an coating target is placed. The coating section applies a material to a predetermined region on the coating target placed on the stage to form a coating film. The vapor supply section generates solvent vapor capable of dissolving the coating film. The blower section blows the solvent vapor generated by the vapor supply section onto the coating film on the coating target placed on the stage. The controller controls an amount of the solvent vapor to be blown by the blower section so that: the coating film is dissolved; viscosity in a part of the coating film on a surface layer side is lower than that in a part thereof on the coating target side; and the viscosity in the part on the surface layer side and the viscosity of the coating target side take such values that prevent the coating film on the coating target from spreading.
    Type: Application
    Filed: March 15, 2011
    Publication date: August 25, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi SATO, Hiroyasu Kondo, Naoaki Sakurai, Katsuyuki Soeda, Kenichi Ooshiro, Shuichi Kimura
  • Publication number: 20110204400
    Abstract: According to one embodiment, a light emitting device includes a package member, a light emitting element provided in the package member, a first phosphor layer and a second phosphor layer. A first phosphor layer is provided on the light emitting element and has a first phosphor. A second phosphor layer is provided on the first phosphor layer and has a second phosphor. A luminescent efficiency of the first phosphor is higher than a luminescent efficiency of the second phosphor.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 25, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi Koizumi, Yasuhide Okada, Junsei Yamabe, Naoaki Sakurai
  • Patent number: 7884020
    Abstract: A polishing cloth used in the chemical mechanical polishing treatment comprises a molded body of (meth)acrylic copolymer having an acid value of 10 to 100 mg KOH/g and a hydroxyl group value of 50 to 150 mg KOH/g.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: February 8, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideaki Hirabayashi, Naoaki Sakurai, Akiko Saito, Koji Sato, Tomiho Yamada
  • Publication number: 20110001784
    Abstract: By using an ink-jet application method, a solid content having a desired thickness contained in an application solution is formed in a desired region of a substrate by repeating an applying process and a drying process more than once. In the applying process, the application solution is sprayed and applied on the substrate. In the drying process, the application solution is dried to generate the solid content.
    Type: Application
    Filed: September 15, 2010
    Publication date: January 6, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Naoaki Sakurai
  • Patent number: 7814919
    Abstract: An ultrasonic cleaning apparatus which cleans a material at a surface by supplying an ultrasonic wave from an ultrasonic wave application head to a cleaning liquid on the surface, and cleans the surface, wherein the ultrasonic wave application head has an ultrasonic wave transmission member which is provided opposite the surface, and has a curved portion on a first plane placed close to the surface, an ultrasonic transducer which is provided on a second plane placed opposite the first plane of the ultrasonic wave transmission member, and generates and applies an ultrasonic wave to a cleaning liquid on the surface through the ultrasonic wave transmission member, and a preventive portion which is provided in the ultrasonic wave transmission member, and prevents the ultrasonic wave applied to the cleaning liquid and reflected on the surface from entering the ultrasonic transducer through the ultrasonic wave transmission member.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: October 19, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Hiroshi Fujita
  • Patent number: 7799728
    Abstract: A photocatalyst dispersing element includes: a photocatalyst material; and a solvent. A hydrogen-ion exponent of the solvent is in a range of pH 2.1 or more and pH 5.7 or less. A method for manufacturing a photocatalyst dispersing element includes: adjusting a hydrogen-ion exponent in a solvent to be in a range of inhibiting aggregation of a photocatalyst material and of suppressing lowering of a degree of catalytic activity of the photocatalyst material; and mixing the photocatalyst material with the solvent.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: September 21, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Junsei Yamabe, Naoaki Sakurai, Nobuaki Makino
  • Publication number: 20100109037
    Abstract: In a fluorescer solution, a plurality of types of fluorescent particles are contained in a resin liquid. Average particle sizes of these fluorescent particles decrease as densities of the types increase. In other words, average settling rates vs of the types of the fluorescent particles ascertained by v s = D p 2 × ( ? p - ? f ) × g 18 × ? are equal to each other, where Dp is an average particle size of each of the types of fluorescent particles, pp is a density of each of the types of fluorescent particles, pf is a density of the resin liquid, ? is a viscosity of the resin liquid, g is the acceleration due to gravity, and vs is an average settling rate of each of the types of fluorescent particles.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 6, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoaki SAKURAI, Junsei Yamabe, Hiroshi Koizumi
  • Publication number: 20100112225
    Abstract: A coater (1) includes: a droplet jet part (4) which ejects droplets of a first solution toward an object to be coated (2) to apply the droplets to the object to be coated (2); and a remoisturizing-drying part (6) which gives a residue of the first solution applied on the object to be coated (2) a solvent capable of dissolving the residue to form an applied body with a second solution containing the residue as a solute, and which dries the formed applied body with the second solution.
    Type: Application
    Filed: February 27, 2008
    Publication date: May 6, 2010
    Applicants: Kabushiki Kaisha Toshiba, Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Sato, Hiroyasu Kondo, Naoaki Sakurai, Junsei Yamabe, Katsuyuki Soeda, Hiroshi Koizumi, Shuichi Kimura, Shizuo Kinoshita
  • Publication number: 20100072423
    Abstract: A method of producing a low-molecular luminous material dispersant having: inserting a coat agent in gas phase and an inner gas into a vacuum atmosphere, wherein the coat agent has a strong affinity for a solvent when the coat agent is in liquid phase; heating and vaporizing a low-molecular luminous material in the vacuum atmosphere so as to obtain a mix gas comprising the low-molecular luminous material and inner gas; cooling the mix gas so as to obtain a coat agent in liquid phase; and recovering the coat agent in liquid phase and adding the coat agent in liquid phase into the solvent so as to obtain the low-molecular luminous material dispersant.
    Type: Application
    Filed: September 9, 2009
    Publication date: March 25, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoaki SAKURAI, Hiroyasu Kondo, Hiroshi Koizumi
  • Publication number: 20100047716
    Abstract: One aspect of the present invention is directed to a method of forming a pattern. A first layer which comprises a polymerization initiator is selectively formed on a second layer of a substrate. A polymer layer is selectively formed on the first layer by subjecting an organic monomer to living radical polymerization using the polymerization initiator. The second layer is selectively etched using the polymer layer as a mask.
    Type: Application
    Filed: March 9, 2009
    Publication date: February 25, 2010
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Naoaki SAKURAI
  • Patent number: 7632359
    Abstract: A weakly alkali cleaning liquid suitable for use in the case of cleaning and removing inks adhered to a nozzle plate, in an ink jet printer using inks in which inorganic pigments and metal oxides are mixed into polymers, is provided. In the cleaning liquid, carbonates are added to the weakly alkali solution of pH 8 to pH 12.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: December 15, 2009
    Assignee: Kabuhsiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Junsei Yamabe
  • Publication number: 20090253575
    Abstract: A photocatalyst dispersing element includes: a photocatalyst material; and a solvent. A hydrogen-ion exponent of the solvent is in a range of pH 2.1 or more and pH 5.7 or less. A method for manufacturing a photocatalyst dispersing element includes: adjusting a hydrogen-ion exponent in a solvent to be in a range of inhibiting aggregation of a photocatalyst material and of suppressing lowering of a degree of catalytic activity of the photocatalyst material; and mixing the photocatalyst material with the solvent.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 8, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Junsei Yamabe, Naoaki Sakurai, Nobuaki Makino
  • Publication number: 20090201352
    Abstract: An ink jet system according to the present invention is provided with an air bubble removing unit including: an ink jet body having a plurality of ink supply path; a nozzle plate connected to an end of the ink jet body and having a plurality of spaced nozzle holes therein; and a cap configured to cover the nozzle holes formed in the nozzle plate wherein a first ink channel space is formed continuous to the nozzle holes and the plurality of ink supply path, and a second ink channel space is formed between a recess of the cap and a surface of the nozzle plate, so that the second ink channel space and the first ink channel space are continuous through the nozzle holes.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 13, 2009
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Tsuyoshi Sato, Hiroyasu Kondo
  • Publication number: 20090044829
    Abstract: An ultrasonic-wave washing unit comprising an ultrasonic-wave vibrating plate to which an ultrasonic-wave vibrator is fixed by adhesive bonding, an ultrasonic-wave transmission plate opposed to the vibrating plate, a liquid supply means which supplies a liquid to a space defined between the vibrating plate and the transmission plate, and a liquid discharge means for discharging the liquid from the space.
    Type: Application
    Filed: October 14, 2008
    Publication date: February 19, 2009
    Inventors: Naoaki SAKURAI, Hiroshi Fujita