Patents Assigned to Orient Chemical Industries, Ltd.
  • Patent number: 7618555
    Abstract: The present invention relates to an red luminescent ink composition exhibiting adequate and stable emission intensity under irradiation of ultraviolet rays and high solubility for a resin and an organic solvent. The ink composition of the present invention contains a luminous compound represented by the following formula (1): wherein R is a perfluoroalkyl group having 2 to 20 carbons, L1 and L2 are the same or different and are sulfoxide having a substituted or unsubstituted aryl group or a substituted or unsubstituted an alkyl group.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: November 17, 2009
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Fumio Furuya, Yasuhiro Yamasaki
  • Patent number: 7598010
    Abstract: A triarylamine dimer derivative is represented by the following chemical formula [1] (in the chemical formula [1]: —Ar1, —Ar2, —Ar3 and —Ar4 are aryl groups being to have a substitutional group respectively, —R1 and —R2 are same or different to each other and one thereof is selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxyl group and a halogen atom; m and n are from 0 to 4; and with a proviso that —Ar1 and —Ar2, —Ar3 and —Ar4 are being to bind respectively to compose a cyclic structure group having a nitrogen atom) having an amorphous phase indicated by spectrum of powder X-ray diffractometry. The triarylamine dimer derivative is used for a charge transport material, an electrophotographic photosensitive conductor having thereof, an electroluminescence elemental device having a hole transport material thereof.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: October 6, 2009
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Yoshio Kita, Yasuhiro Yamasaki
  • Patent number: 7588658
    Abstract: Disclosed is a laser-transmissible resin composition for laser welding having 100 parts by weight of a thermoplastic resin, and 0.01 to 3 parts by weight of titanium oxide that has a density of at least 4 g/cm3 and an average particle size of 100 to 400 nm; and the resin composition exhibits a whitish hue of white, gray or tint color. Also disclosed is a method for laser welding that includes piling a resin workpiece that is at least partly capable of laser-absorption onto a laser-transmissible resin workpiece that is molded out of the laser-transmissible resin composition, and irradiating a laser beam thereto to weld thermally.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: September 15, 2009
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Satoshi Yamamoto, Heihachi Yushina, Osamu Nakagawa
  • Patent number: 7582787
    Abstract: Charge control agent whose active ingredient is a zinc compound of an alkylsalicylic acid derivative, the compound being a zincified alkylsalicylic acid derivative which is an alkylphenol derivative having a carboxyl group introduced thereto; Toner for developing electrostatic images, comprising said charge control agent, a coloring agent and a binder resin for toner; Charge control resin particles comprising solidified milled particles of a thermally kneaded mixture of at least said charge control agent and a resin.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: September 1, 2009
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Akihide Isoda, Tetsuji Kihara, Tohru Tsuruhara
  • Publication number: 20090136717
    Abstract: It is an object of the present invention to provide a laser-welded article that workpieces prepared simply can be easily unified by laser in one laser welding process without using complicated processes. Moreover, the laser-welded article has an excellent appearance and sufficient welding strength of the molded workpieces, and does not damage the resin property. The laser-welded article comprises: an integral construction of a single workpiece that at least a part of curled workpiece is overlapped or plural workpieces that at least a part of each workpiece is piled, which is welded by exothermic through irradiating laser, wherein the single laser-transmissible-absorptive molded workpiece or the plural laser-transmissible-absorptive molded workpieces include a thermoplastic resin and a laser-transmissible absorbent to have an absorbance: a ranging from 0.07 to 2.0, and have abilities of absorbing at least partial beam of the laser and transmitting another partial beam of the laser.
    Type: Application
    Filed: September 20, 2006
    Publication date: May 28, 2009
    Applicant: ORIENT CHEMICAL INDUSTRIES LTD.
    Inventors: Tetsuji Kihara, Satoshi Yamamoto
  • Publication number: 20090042116
    Abstract: The present invention relates to a method for producing an ?-form titanylphthalocyanine represented by the formula (1): which has a peak at a Bragg angle (2?±0.2°) in X-ray diffraction spectrum with CuK ?-ray: 7.5°, 10.2°, 12.6°, 13.2°, 15.1°, 16.3°, 17.3°, 18.3°, 22.5°, 24.2°, 25.3° and 28.6°, wherein the method includes steps of: (I) subjecting a crude titanylphthalocyanine having an ?-form polymorph to an acid pasting treatment, and then filtering and washing with water to give a water-containing wet cake, and then subjecting the wet cake to drying and crushing to give a low crystalline titanylphthalocyanine; (II) adding a dispersing aid to the low crystalline titanylphthalocyanine and dispersing at room temperature, in DMF, to prepare a polymorph; and (III) filtering, washing, and drying under a reduced pressure. The present invention consists in a provision of a method for conveniently producing the ?-form titanylphthalocyanine having a peak at a Bragg angle (2?±0.
    Type: Application
    Filed: July 22, 2008
    Publication date: February 12, 2009
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Kenji Takaki, Yasuhiro Yamasaki
  • Patent number: 7479360
    Abstract: The charge control agent comprises aggregate particles including an azo-type iron complex salt represented by the following chemical formula [VI] (in the chemical formula [VI], B+ is (H+)x(Na+) 1?x and x is mole ratio and 0.6 to 0.9, or B+ is (H+)y(Na+)1?y and y is mole ratio and 0 to 0.2) and the aggregate particles have 0.5 to 5.0 microns of an average particle size. A toner for developing an electrostatic image comprises a resin for the toner and the charge control agent. An image formation process of electrophotography comprises a step for developing an electrostatic latent image on an electrostatic latent image frame by a developer including the toner.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: January 20, 2009
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Masashi Yasumatsu, Kazuyoshi Kuroda, Osamu Yamate, Kaori Sato, Jun Hikata, Heihachi Yushina
  • Patent number: 7462711
    Abstract: An object of the present invention is to provide a novel ?-oxo bridged heterometal phthalocyanine compound, and a production method such that the ?-oxo bridged heterometal phthalocyanine compound is obtained simply, selectively and with high yield. The ?-oxo bridged heterometal phthalocyanine compound has a structure in which the central metal atom (M1) in a metal phthalocyanine including M1 as central metal thereof is oxo-bridged with the central metal M2 in a metal phthalocyanine including M2 as central metal thereof.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: December 9, 2008
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Kenji Takaki, Yasuhiro Yamasaki
  • Patent number: 7456238
    Abstract: Novel fabricated resin products are described and having suitability for laser welding applications. These contain a resin part for transmitting black colorant and a resin part for absorbing black colorant.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: November 25, 2008
    Assignees: E.I. du Pont de Nemours and Company, Orient Chemical Industries, Ltd.
    Inventors: Reiko Koshida, Yoshiteru Hatase, Ryuichi Hayashi
  • Publication number: 20080245267
    Abstract: The present invention relates to an red luminescent ink composition exhibiting adequate and stable emission intensity under irradiation of ultraviolet rays and high solubility for a resin and an organic solvent. The ink composition of the present invention contains a luminous compound represented by the following formula (1): wherein R is a perfluoroalkyl group having 2 to 20 carbons, L1 and L2 are the same or different and are sulfoxide having a substituted or unsubstituted aryl group or a substituted or unsubstituted an alkyl group.
    Type: Application
    Filed: April 6, 2007
    Publication date: October 9, 2008
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Fumio Furuya, Yasuhiro Yamasaki
  • Publication number: 20080210128
    Abstract: An optical layer comprises ?-oxo-bridged boron subphthalocyanine dimer. The ?-oxo-bridged boron subphthalocyanine dimer is represented by the following chemical formula (1). (In the chemical formula (1), Z1 to Z12 are the same or different to each other and selected from the groups consisting of a hydrogen atom, a hydroxyl group, a mercapto group, an alkyl group, an aralkyl group, an aryl group, an amino group, an alkoxyl group and a thioether group. Z1 to Z12 have one or more substitutional groups or have no substitutional group.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 4, 2008
    Applicant: ORIENT CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomohiro Mori, Fumio Furuya, Yasuhiro Yamasaki
  • Patent number: 7413837
    Abstract: A charge control agent comprises a monoazo metals-compound including a monoazo compound represented by the following formula [I]: and metals of a metallic element or a metalloid coordinating to the monoazo compound. A toner for developing an electrostatic image comprises: the charge control agent including the monoazo compound and metals of the metallic element or the metalloid coordinating to the monoazo compound, a resin for the toner and a colorant.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: August 19, 2008
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Masashi Yasumatsu, Toshihiro Urakawa, Akihiro Tada
  • Patent number: 7342062
    Abstract: Monoazo metal complex compound containing composition, the incidence of skin sensitization in a skin sensitization potential test based on the maximization method of said composition being not more than 20% and method for producing said composition which comprises a step for removing impurity substances using an alcoholic organic solvent; charge control agent comprising said composition and toner containing said charge control agent; coloring agent containing said composition and colored thermoplastic resin composition containing said coloring agent.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: March 11, 2008
    Assignee: Orient Chemical Industries, Ltd
    Inventors: Akihiro Tada, Tohru Tsuruhara
  • Patent number: 7326762
    Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 5, 2008
    Assignees: Orient Chemical Industries, Ltd., Osaka Municipal Government
    Inventors: Motoomi Arakawa, Kazuaki Sukata, Masayuki Shimada, Shigehiro Sasao
  • Publication number: 20070292651
    Abstract: A laser-welded article comprises: a laser-transmissible workpiece made from a laser-transmissible colored resin composition including at least a thermoplastic resin and an alkaline earth metal salt of an anthraquinone-type acidic dye represented by the following chemical formulae (1) and/or (2) and a laser-absorptive workpiece putting the laser-transmissible workpiece together, wherein the workpieces are welded at the put position thereof by irradiated laser towards the laser-transmissible workpiece that transmits therethrough and is absorbed into the laser-absorptive workpiece.
    Type: Application
    Filed: February 7, 2006
    Publication date: December 20, 2007
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Syuuji Sugawara, Yoshiteru Hatase, Toshihiro Okanishi
  • Publication number: 20070292779
    Abstract: A toner for developing an electrostatic image comprises a binding resin for a toner and a charge control agent including an azo-type iron complex salt represented by the following chemical formula (1) (in the chemical formula (1), R1 and R3 are the same or different to each other and are an alkyl group having a straight chain or a branch chain of 3 to 8 carbons; R2a, R2b, R4a and R4b are the same or different to each other and are selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxyl group, a halogen atom, a nitro group and a carboxyl group; A+ indicates m(H+)+n(K+)+p(Na+), which m, n and p satisfy numerical equations of m+n+p=1, 0.7?m?1, 0?n?0.3 and 0?p?0.3), wherein an average particle size thereof is 1 to 4 microns, and a specific volume resistivity thereof is ranging from 0.2×1015 to 7×1015 ?·cm.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 20, 2007
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Kaori Sato, Masashi Yasumatsu
  • Publication number: 20070254984
    Abstract: Quinophthalone compound of Formula (1) or (2), mixed colorant, laser ray transmitting colored resin composition containing thereof, and laser-welded product.
    Type: Application
    Filed: October 4, 2005
    Publication date: November 1, 2007
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Publication number: 20070231726
    Abstract: A positive electrified charge control agent comprising a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II) (in the formula (I) and formula (II), [D-(SO3)2]2? is a bivalent anion of an organic acid having at least two sulfonic acid groups, p is 0 or 1, B is a bonding line when p is 0, B is a carbon atom or a nitrogen atom when p is 1, J is a carbon atom or a nitrogen atom, A is an organic group which forms a ring with (B)p and J, both of R are same or different to each other and are an organic group, and these both of R are independent or form a heterocyclic ring). A positive electrified toner for developing an electrostatic image comprises the positive electrified charge control agent. A charge control method of the positive electrified toner for developing the electrostatic image comprises a step for making the toner positively electrified by friction.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 4, 2007
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Osamu Yamate, Masashi Yasumatsu
  • Patent number: 7232480
    Abstract: There are provided a carbon black according to which long-term stable storage is possible, clogging is not prone to occurring, and the OD value is high and hence printing with a deep black color is possible, or a carbon black that can be used in a water-based ink that is used in ink jet printer printing, that has low settleability and can thus be stored stably for a long period, for which clogging is not prone to occurring, and for which the reflection density is high and hence printing with a high printing density and a deep black color is possible, a carbon black dispersion having the carbon black dispersed therein, and a water-based ink containing the carbon black.
    Type: Grant
    Filed: December 26, 2003
    Date of Patent: June 19, 2007
    Assignees: Seiko Epson Corporation, Orient Chemical Industries, Ltd.
    Inventors: Masayuki Momose, Miharu Kanaya, Sohko Itoh, Tatsuya Yagyu
  • Publication number: 20070100083
    Abstract: The present invention provides a polycarbonate or polyester having reactive silicon-containing groups which can provide an organic-inorganic hybrid polymeric material having strong cross-linkage to inorganic components based on its many reactive silicon-containing groups. The polycarbonate or polyester has the following unit: wherein, either Q1 or Q2 is a side chain having a reactive silicon-containing group, the other of Q1 or Q2, and R1, R2 are each independently hydrogen atom, or an alkyl group, an aryl group, an aroyl group or an aralkyl group, wherein the groups may have a substituted group or atom, Q1 and Q2 may be taken together to form a ring, R1 and R2 may be taken together to form a ring, and R is a bivalent group of alkylene group, arylene group or combination thereof, which accomplishes the above objective.
    Type: Application
    Filed: June 18, 2004
    Publication date: May 3, 2007
    Applicant: ORIENT CHEMICAL INDUSTRIES, LTD.
    Inventors: Motoomi Arakawa, Kazuaki Sukata