Patents by Inventor Shigeaki Tanaka

Shigeaki Tanaka 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: 8585781
    Abstract: There is provided an aqueous solution including: (a) a preservative, and (b) at least one kind of an azo compound represented by the following Formula (1) or a salt thereof, wherein a content of (b) is 1% by mass to 25% by mass: wherein, in Formula (1), A represents a substituted phenyl group or a substituted or unsubstituted nitrogen-containing 5-membered heterocyclic group, G represents a nitrogen atom or —C(R2)?, R2 represents a hydrogen atom, a sulfo group, a carboxy group, a substituted or unsubstituted carbamoyl group or cyano group, Y2, Y3 and Y4 each independently represents a hydrogen atom or a monovalent substituent, Y2, Y3 and Y4 may be bonded to each other to form a ring, all of Y2, Y3 and Y4 do not represent a hydrogen atom at the same time, and M each independently represents a hydrogen atom or a monovalent countercation.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: November 19, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshihiko Fujie, Shigeaki Tanaka
  • Patent number: 8523991
    Abstract: An ink composition is provided which does not undergo decomposition or fading of colorants even when stored under high-temperature environment. An ink composition which contains a compound represented by the following general formula (1) and a humectant, wherein the content of the compound represented by the general formula (1) is from 0.1% by mass to less than 7.0% by mass, the content of the humectant having 3 or more hydroxyl groups is 8.0% by mass or less, and the molar ratio of the humectant having 3 or more hydroxyl groups/the compound represented by the general formula (1) being less than 15.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: September 3, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Shigeaki Tanaka, Keiichi Tateishi, Takashi Ozawa
  • Patent number: 8523990
    Abstract: An ink composition having a suitably-adjusted hue and causing no decomposition of dyes during storage is provided. The ink composition contains a compound (a) represented by the following formula (1), an ingredient (c) and moisture-retentive agents, characterized by being from 0.1 mass % to lower than 7.0 mass % in content of the compound represented by the formula (1), 10.0 mass % or lower in content of a moisture-retentive agent having 3 or more hydroxyl groups (b) and lower than 30.0 in molar ratio of the moisture-retentive agent having 3 or more hydroxyl groups to the compound represented by the formula (1): wherein each of Ar1 and Ar2 preferably represents an aromatic heterocyclic group, each of A1 and A2 represents a hydrogen atom or a substituent, Y represents —OM or —NR1R2, M represents a hydrogen atom or a metal ion and each of R1 and R2 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or the like. The ingredient (c) is at least one compound selected from C.I.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: September 3, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Shigeaki Tanaka, Keiichi Tateishi, Takashi Ozawa
  • Patent number: 8372190
    Abstract: An ink set including at least a yellow ink composition, a magenta ink composition and a cyan ink composition, wherein the yellow ink composition contains, as the yellow colorant, at least one member selected from the group consisting of a compound represented by a specific structure and a salt thereof, each of the yellow colorant, the magenta colorant and the cyan colorant contained in the yellow ink composition, the magenta ink composition and the cyan ink composition, respectively, has at least one ionic hydrophilic group, the counter ion of the ionic hydrophilic group contains a lithium ion, and the lithium ion concentration is 70 mol % or more based on all cations in each ink composition.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: February 12, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Hiroshi Yamamoto, Shigeaki Tanaka
  • Publication number: 20120281350
    Abstract: A storage apparatus S comprises a disk controller for controlling data I/O processing between a host H and a disk unit. The disk controller includes a plurality of circuit board modules each having a circuit board and a module case storing the same, and a chassis shaped like a hollow cylinder having a front side opening and a rear side opening and configured to store the circuit board modules from the front and rear side openings. A CM module is configured to introduce cooling air from a cooling fan through an opening provided on at least one side surface toward a circuit component mounted on the circuit board. A MP module is configured to introduce cooling air by a cooling fan through an opening provide on a front surface of the module case.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 8, 2012
    Inventors: Shigeaki TANAKA, Kentaro Abe
  • Patent number: 8248782
    Abstract: A storage apparatus S comprises a disk controller 1 for controlling data I/O processing between a host H and a disk unit 2. The disk controller 1 includes a plurality of circuit board modules each having a circuit board 210 and a module case 200 storing the same, and a chassis 100 shaped like a hollow cylinder having a front side opening and a rear side opening and configured to store the circuit board modules from the front and rear side openings. A CM module 20 is configured to introduce cooling air from a cooling fan 10F through an opening provided on at least one side surface toward a circuit component mounted on the circuit board 210. A MP module 30 is configured to introduce cooling air by a cooling fan 10R through an opening provide on a front surface of the module case 200.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: August 21, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shigeaki Tanaka, Kentaro Abe
  • Publication number: 20120165436
    Abstract: A pigment dispersion including vinyl polymer particles containing A and B: A: an azo pigment represented by the following formula (1), a tautomer thereof, a salt thereof, a hydrate thereof, or a solvate thereof; B: a vinyl polymer containing a structural unit (a) having a non-aromatic alicyclic group bonded to the polymer main chain via a linking group, and a structural unit (b) having a hydrophilic group, wherein the substituents are as defined in the specification.
    Type: Application
    Filed: September 2, 2010
    Publication date: June 28, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeaki Tanaka, Keiichi Tateishi, Kiyoshi Morimoto, Kaoru Tojo
  • Patent number: 8110038
    Abstract: The present invention provides a mixed crystal having absorption properties that are excellent for color reproducibility as a blue pigment, and including a compound represented by the following Formula (I) and a compound represented by the following Formula (II), and a colored pigment dispersion composition including the mixed crystal and a medium. In Formula (I), X represents —SO—Z, —SO2—Z, —SO2NR1R2, —SO3R1, —CONR1R2 or —CO2R1; Z, R1 and R2 each independently represent an alkyl group, an aryl group, a heterocyclic group or the like; Y represents a monovalent substituent; M1 represents a hydrogen atom, a metal element or the like; and a and b are integers from 0 to 16 and satisfy the relationship of 0?a+b?16. In Formula (II), G1 to G4 and Q1 to Q4 each independently represent a carbon atom or a nitrogen atom, and A1 to A4 each independently represent a group of atoms necessary for forming an aromatic ring or heterocycle with the respective G1 to G4 and Q1 to Q4.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 7, 2012
    Assignee: Fujifilm Corporation
    Inventors: Shigeaki Tanaka, Keiichi Tateishi
  • Publication number: 20110157811
    Abstract: A storage apparatus S comprises a disk controller 1 for controlling data I/O processing between a host H and a disk unit 2. The disk controller 1 includes a plurality of circuit board modules each having a circuit board 210 and a module case 200 storing the same, and a chassis 100 shaped like a hollow cylinder having a front side opening and a rear side opening and configured to store the circuit board modules from the front and rear side openings. A CM module 20 is configured to introduce cooling air from a cooling fan 10F through an opening provided on at least one side surface toward a circuit component mounted on the circuit board 210. A MP module 30 is configured to introduce cooling air by a cooling fan 10R through an opening provide on a front surface of the module case 200.
    Type: Application
    Filed: June 26, 2009
    Publication date: June 30, 2011
    Inventors: Shigeaki Tanaka, Kentaro Abe
  • Publication number: 20110104458
    Abstract: An ink composition having a suitably-adjusted hue and causing no decomposition of dyes during storage is provided. The ink composition contains a compound (a) represented by the following formula (1), an ingredient (c) and moisture-retentive agents, characterized by being from 0.1 mass % to lower than 7.0 mass % in content of the compound represented by the formula (1), 10.0 mass % or lower in content of a moisture-retentive agent having 3 or more hydroxyl groups (b) and lower than 30.0 in molar ratio of the moisture-retentive agent having 3 or more hydroxyl groups to the compound represented by the formula (1): wherein each of Ar1 and Ar2 preferably represents an aromatic heterocyclic group, each of A1 and A2 represents a hydrogen atom or a substituent, Y represents —OM or —NR1R2, M represents a hydrogen atom or a metal ion and each of R1 and R2 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or the like. The ingredient (c) is at least one compound selected from C.I.
    Type: Application
    Filed: June 15, 2009
    Publication date: May 5, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeaki Tanaka, Keiichi Tateishi, Takashi Ozawa
  • Patent number: 7933120
    Abstract: According to the storage control device of the present invention, individual cooling passages are formed for each region in the enclosure and the respective cooling passages are formed bent so as to bypass the connection substrate. As a result, the interior of the enclosure is cooled efficiently. The interior of the enclosure is divided in the front-rear direction by the connection substrate. Logic substrates and battery devices are provided on the front side of the connection substrate and logic substrates and power supply devices are provided on the rear side of the connection substrate. The battery devices and power supply devices located on the left and right sides of the enclosure are each cooled by means of individual cooling passages. The logic substrates are cooled by means of different cooling passages.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: April 26, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Shigeaki Tanaka, Yoshikatsu Kasahara
  • Publication number: 20110091696
    Abstract: An ink composition is provided which does not undergo decomposition or fading of colorants even when stored under high-temperature environment. An ink composition which contains a compound represented by the following general formula (1) and a humectant, wherein the content of the compound represented by the general formula (1) is from 0.1% by mass to less than 7.0% by mass, the content of the humectant having 3 or more hydroxyl groups is 8.0% by mass or less, and the molar ratio of the humectant having 3 or more hydroxyl groups/the compound represented by the general formula (1) being less than 15.
    Type: Application
    Filed: June 15, 2009
    Publication date: April 21, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeaki Tanaka, Keiichi Tateishi, Takashi Ozawa
  • Patent number: 7896030
    Abstract: The present invention provides a joint member which suppresses the increase of the number of members and enables the provision of a further compactified integrated fluid control apparatus. A sensor-equipped joint member 10 includes a channel block 41 including a V-shaped channel 41a formed therein for communicating adjacent fluid control devices 16 and 20 to each other at their lower-end openings, and a pressure sensor 42 provided on a side surface of the channel block 41. The channel block 41 is provided with a branched channel 41b which is branched from the V-shaped channel 41a and is communicated to the pressure sensor 42.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: March 1, 2011
    Assignee: Fujikin Incorporated
    Inventors: Tsutomu Shinohara, Michio Yamaji, Shigeaki Tanaka, Mutsunori Koyomogi, Ichiro Mine, Ichiro Tokuda, Kenji Tsubota
  • Publication number: 20110023752
    Abstract: The present invention provides a mixed crystal having absorption properties that are excellent for color reproducibility as a blue pigment, and including a compound represented by the following Formula (I) and a compound represented by the following Formula (II), and a colored pigment dispersion composition including the mixed crystal and a medium. In Formula (I), X represents —SO—Z, —SO2—Z, —SO2NR1R2, —SO3R1, —CONR1R2 or —CO2R1; Z, R1 and R2 each independently represent an alkyl group, an aryl group, a heterocyclic group or the like; Y represents a monovalent substituent; M1 represents a hydrogen atom, a metal element or the like; and a and b are integers from 0 to 16 and satisfy the relationship of 0?a+b?16. In Formula (II), G1 to G4 and Q1 to Q4 each independently represent a carbon atom or a nitrogen atom, and A1 to A4 each independently represent a group of atoms necessary for forming an aromatic ring or heterocycle with the respective G1 to G4 and Q1 to Q4.
    Type: Application
    Filed: March 27, 2009
    Publication date: February 3, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeaki Tanaka, Keiichi Tateishi
  • Patent number: 7876556
    Abstract: A disk array system capable of efficiently cooling the canisters and achieving the high-density mounting of the canisters without reducing the number of canisters is provided. In the disk array system having a HDD box which stores a plurality of canisters, a canister on an upstream side of cooling air and a canister on a downstream side of the cooling air both standing upright are arranged with a difference in level therebetween in the HDD box. The canister on the upstream side has a reliability assurance temperature lower than that on the downstream side, and a disk size of the canister on the upstream side is smaller than that on the downstream side. Also, the canister on the downstream side is arranged higher than that on the upstream side so that an alarm indicator LED and a ready indicator LED can be checked visually.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: January 25, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Katakura, Shigeaki Tanaka, Yasuji Morishita
  • Publication number: 20100302305
    Abstract: To obtain an ink set capable of forming an image excellent in the light fastness and ozone fastness and reduced in the generation of a bronze phenomenon; an inkjet recording method; and a recorded material.
    Type: Application
    Filed: October 30, 2008
    Publication date: December 2, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Hiroshi Yamamoto, Shigeaki Tanaka
  • Publication number: 20100172078
    Abstract: According to the storage control device of the present invention, individual cooling passages are formed for each region in the enclosure and the respective cooling passages are formed bent so as to bypass the connection substrate. As a result, the interior of the enclosure is cooled efficiently. The interior of the enclosure is divided in the front-rear direction by the connection substrate. Logic substrates and battery devices are provided on the front side of the connection substrate and logic substrates and power supply devices are provided on the rear side of the connection substrate. The battery devices and power supply devices located on the left and right sides of the enclosure are each cooled by means of individual cooling passages. The logic substrates are cooled by means of different cooling passages.
    Type: Application
    Filed: March 11, 2010
    Publication date: July 8, 2010
    Inventors: Shigeaki Tanaka, Yoshikatsu Kasahara
  • Patent number: 7701710
    Abstract: According to the storage control device of the present invention, individual cooling passages are formed for each region in the enclosure and the respective cooling passages are formed bent so as to bypass the connection substrate. As a result, the interior of the enclosure is cooled efficiently. The interior of the enclosure is divided in the front-rear direction by the connection substrate. Logic substrates and battery devices are provided on the front side of the connection substrate and logic substrates and power supply devices are provided on the rear side of the connection substrate. The battery devices and power supply devices located on the left and right sides of the enclosure are each cooled by means of individual cooling passages. The logic substrates are cooled by means of different cooling passages.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: April 20, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Shigeaki Tanaka, Yoshikatsu Kasahara
  • Patent number: 7691192
    Abstract: An ink composition including at least water, a cyan dye represented by the formula shown below and an aromatic compound having a carboxyl group and/or a salt thereof; an inkjet recording method using the composition; and recorded matter which is recorded by the recording method wherein M represents a hydrogen atom, a metal element, a metal oxide, a metal hydroxide or a metal halide, R1 to R4 each independently represents —SO2Z, and Z represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, provided that at least one of four Z's has an ionic hydrophilic group as a substituent.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: April 6, 2010
    Assignees: Seiko Epson Corporation, Fuji Film Corporation
    Inventors: Yasuhiro Oki, Kazuhiko Kitamura, Hiroko Hayashi, Keiichi Tateishi, Shigeaki Tanaka, Yoshiharu Yabuki
  • Patent number: 7677265
    Abstract: A heating apparatus (11) has sheet heaters (12) arranged in both sides of at least one line and heating fluid control devices (2, 3, 4) and joint members (5), heat insulating boards (13, 14) made of an engineering plastic are respectively brought into contact with outer sides of the sheet heaters (12), and the heat insulating boards (13, 14) are coupled to each other by at least one thread member (15), whereby the sheet heater (12) is prevented from dropping out.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: March 16, 2010
    Assignee: Fujikin Incorporated
    Inventors: Izuru Shikata, Shigeaki Tanaka, Michio Yamaji