Patents by Inventor Junji Otani
Junji Otani 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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Publication number: 20070251414Abstract: Disclosed is a red ink composition for color filter, comprising a monoazo compound represented by formula [I]: wherein, X1, X2 and Y are selected from the group consisting of an optionally substituted aromatic group and an optionally substituted heterocyclic group having conjugated double bonds, a resin component and a solvent.Type: ApplicationFiled: November 25, 2004Publication date: November 1, 2007Inventors: Ryuzo Ueno, Junji Otani, Tetsuya Yamashita, Takaya Hisano
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Patent number: 7060843Abstract: Electroluminescent device comprising in this order (a) an anode (b) a hole transporting layer (c) a light-emitting layer (d) optionally an electron transporting layer and (e) a cathode and a light-emitting substance, wherein the light-emitting substance is a diketopyrrolopyrrole represented by formula I or formula III processes for the preparation of compounds I, its uses and compositions comprising the compounds I and/or III.Type: GrantFiled: September 8, 2000Date of Patent: June 13, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Junji Otani, Hiroshi Yamamoto, Norihisa Dan, Abul Iqbal, Robert Moretti
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Patent number: 7034149Abstract: The present invention relates to a cyan dye mixture, an ink composition containing the mixture and a method of ink-jet recording with the ink composition. The print obtained by the method is characterized by discoloring or fading little even when allowed to stand in a well ventilated shade or in an ozone gas. The cyan dye mixture comprises compounds which are obtained by chlorosulfonating, as a starting material, copper phthalocyanine or a sulfonated copper phthalocyanine and then aminating the chlorosulfonation product with an aminating agent used in an amount of at least 2.5 mol per mol of the starting material, and which are represented by the following formula (1): wherein M represents a proton, alkali metal ion, alkaline earth metal ion, onium ion of an organic amine, or ammonium ion; m is an integer of 1 to 4; and n is an integer of 0 to 3; provided that m+n is an integer of 1 to 4.Type: GrantFiled: July 25, 2001Date of Patent: April 25, 2006Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kitayama Hirokazu, Shinichi Namba, Takafumi Fujii, Junji Otani, Junko Yoshioka, Yasuo Shirasaki
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Patent number: 7001677Abstract: Electroluminescent device comprising in this order (a) an anode (b) a hole transporting layer (c) a light-emitting layer (d) optionally an electron transporting layer and (e) a cathode and a light-emitting substance, wherein the light-emitting substance is a diketopyrrolopyrrole represented by formula I or formula III processes for the preparation of compounds I, its uses and compositions comprising the compounds I and/or III.Type: GrantFiled: April 29, 2003Date of Patent: February 21, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Junji Otani, Hiroshi Yamamoto, Norihisa Dan, Abul Iqbal, Robert Moretti
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Patent number: 6960667Abstract: The present invention is directed to maleimides and preparation of compounds of the formula I wherein R1 and R2 independently from each other stand for variously substituted, and R3 stands for allyl, variously substituted, with the proviso, that R1 and R2 not simultaneously stand for phenyl.Type: GrantFiled: October 10, 2002Date of Patent: November 1, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Publication number: 20040009368Abstract: Electroluminescent device comprising in this orderType: ApplicationFiled: April 29, 2003Publication date: January 15, 2004Inventors: Junji Otani, Hiroshi Yamamoto, Norihisa Dan, Abul Iqbal, Robert Moretti
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Publication number: 20030189191Abstract: Fluorescent maleimides of the formula I 1Type: ApplicationFiled: October 10, 2002Publication date: October 9, 2003Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Publication number: 20030164114Abstract: The present invention relates to a cyan dye mixture, an ink composition containing the mixture and a method of ink-jet recording with the ink composition. The print obtained by the method is characterized by discoloring or fading little even when allowed to stand in a well ventilated shade or in an ozone gas. The cyan dye mixture comprises compounds which are obtained by chlorosulfonating, as a starting material, copper phthalocyanine or a sulfonated copper phthalocyanine and then aminating the chlorosulfonation product with an aminating agent used in an amount of at least 2.Type: ApplicationFiled: January 17, 2003Publication date: September 4, 2003Inventors: Hirokazu Kitayama, Shinichi Namba, Takafumi Fujii, Junji Otani, Junko Yoshioka, Yasuo Shirasaki
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Patent number: 6562981Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5]imidazo[2,1-a]isoindol-11-ones.Type: GrantFiled: April 30, 2002Date of Patent: May 13, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Junji Otani, Kazuhiko Kunimoto, Takashi Deno, Brian Gerrard Devlin, Kunihiko Kodama
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Publication number: 20030023097Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5]imidazo [2,1 -a]isoindol-11-ones.Type: ApplicationFiled: April 30, 2002Publication date: January 30, 2003Inventors: Junji Otani, Kazuhiko Kunimoto, Takashi Deno, Brian Gerrard Devlin, Kunihiko Kodama
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Patent number: 6508957Abstract: The present invention relates to methods for using a maleimide of formula (I) with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia as UV fluorescent material for void detection and for the preparation of scintillators films, luminescent solar energy collectors, organic electroluminescent devices, printing inks, non-impact printing inks, electrophotographic toners, color filters, and colored high molecular organic material.Type: GrantFiled: May 21, 2001Date of Patent: January 21, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Patent number: 6413655Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5] imidazo [2,1-a] isoindol-11-ones.Type: GrantFiled: February 3, 1998Date of Patent: July 2, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Junji Otani, Kazuhiko Kunimoto, Takashi Deno, Brian Gerrard Devlin, Kunihiko Kodama
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Publication number: 20020065422Abstract: The present invention relates to methods for using a maleimide of formula (I) 1Type: ApplicationFiled: May 21, 2001Publication date: May 30, 2002Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Publication number: 20010016269Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5] imidazo [2,1-a] isoindol-11-ones.Type: ApplicationFiled: February 3, 1998Publication date: August 23, 2001Inventors: JUNJI OTANI, KAZUHIKO KUNIMOTO, TAKASHI DENO, BRIAN GERRARD DEVLIN, KUNIHIKO KODAMA
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Patent number: 6258954Abstract: The present invention relates to compounds of formula I provided that R1 and R2 not simultaneously stand for phenyl, the use thereof in, for example, electroluminescent devices and as void detection compounds.Type: GrantFiled: August 22, 2000Date of Patent: July 10, 2001Assignee: Ciba Specialty Chemicals Corp.Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Patent number: 6146809Abstract: Composition comprising a solid organic support material to which either directly or via a bridging group, are covalently linked fluorescent host chromophores and fluorescent guest chromophores, wherein the fluorescence emission spectrum of the host chromophore overlaps with the absorption spectrum of the guest chromophore, wherein the host chromophore is selected from the group consisting of benzo[4,5]imidazo[2,11-a]isoindol-11-ones.Type: GrantFiled: February 3, 1998Date of Patent: November 14, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Brian Gerrard Devlin, Junji Otani, Kazuhiko Kunimoto, Abul Iqbal, Sameer Hosam Eldin
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Patent number: 6103446Abstract: A composition comprising a solid organic support material to which are either directly, or via a bridging group, covalently linked fluorescent chromophores, characterized in that the chromophores are selected from the group consisting of benzo[4,5]imidazo[2,1-a]isoindol-11-ones.Type: GrantFiled: February 3, 1998Date of Patent: August 15, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Brian Gerrard Devlin, Junji Otani, Kazuhiko Kunimoto
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Patent number: 6080516Abstract: Solid-state fluorescent composition comprising at least one host chromophore selected from the group consisting of a benzo[4,5] imidazo[2,1-a]isoindol-11-ones and an effective amount of at least one guest chromophore, and if desired a polymer C, wherein the emission spectrum of the host chromophore overlaps with the absorption spectrum of the guest chromophore, and wherein (a1) the host chromophore is covalently linked to a polymer backbone A ("host polymer"), and/or (a2) the guest chromophore is covalently linked to a polymer backbone B ("guest polymer").Type: GrantFiled: February 3, 1998Date of Patent: June 27, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Brian Gerrard Devlin, Junji Otani, Kazuhiko Kunimoto, Takashi Deno, Abul Iqbal, Sameer Hosam Eldin
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Patent number: 4604865Abstract: A device for introducing air into the exhaust system of a V-type motorcycle engine. The device includes an air manifold advantageously positioned within the V of the engine with passages extending to each exhaust passage adjacent each exhaust port. A control valve run by vacuum admits air to the manifold while reed valves control the passageways to each exhaust passage. The portion of the passage extending through the cylinder head in one embodiment includes a simple bore in tangential intersection with the exhaust passages. A pipe is positioned within the bore which has nozzles therethrough for proper introduction of air to the exhaust.Type: GrantFiled: April 15, 1983Date of Patent: August 12, 1986Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Junji Otani, Akira Okubo, Kanau Iwashita
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Patent number: 4581206Abstract: A catalytic converter includes a cylindrical casing employing multiple catalytic elements. The elements are cushioned on each end and about their periphery. The elements are also held in place by end set plates and a set plate in the middle extending transversely in the cylindrical casing. The set plate in the middle is free to move and adjust within the converter to eliminate excessive stress on the catalytic elements.Type: GrantFiled: May 15, 1984Date of Patent: April 8, 1986Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Junji Otani, Akira Okubo