Patents by Inventor Jun Ogasawara
Jun Ogasawara 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: 20090088570Abstract: An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.Type: ApplicationFiled: November 20, 2008Publication date: April 2, 2009Applicant: FUJIFILM CORPORATIONInventors: Jun OGASAWARA, Tatsuya Igarashi, Satoshi Sano
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Publication number: 20090079343Abstract: An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.Type: ApplicationFiled: November 20, 2008Publication date: March 26, 2009Applicant: FUJIFILM CORPORATIONInventors: Jun OGASAWARA, Tatsuya IGARASHI, Satoshi SANO
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Publication number: 20090001880Abstract: An organic electroluminescent device having a pair of electrodes, and at least one organic layer interposed between the pair of electrodes, with the organic layer containing at least one compound represented by formula (1): wherein L11, L13, and L14 each independently represent an o-arylene group, an o-heteroarylene group, or a vinylene group; L12 represents an o-arylene group, an o-heteroarylene group, a vinylene group, or an ethylene group; and L15 represents a trivalent or higher aromatic ring or a trivalent or higher aromatic heterocyclic ring; and a compound represented by formula (2): wherein L21, L22, L23, L24, and L25 each independently represent a group necessary for forming an aromatic ring or a group necessary for forming an aromatic heterocyclic ring; and a method for producing a compound represented by formula (2).Type: ApplicationFiled: June 18, 2008Publication date: January 1, 2009Applicant: FUJIFILM CorporationInventor: Jun OGASAWARA
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Patent number: 7468212Abstract: An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.Type: GrantFiled: November 18, 2004Date of Patent: December 23, 2008Assignee: Fujifilm CorporationInventors: Jun Ogasawara, Tatsuya Igarashi, Satoshi Sano
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Patent number: 7456567Abstract: An organic electroluminescent device having a pair of electrodes, and at least one organic layer interposed between the pair of electrodes, with the organic layer containing at least one compound represented by formula (1): wherein L11, L13, and L14 each independently represent an o-arylene group, an o-heteroarylene group, or a vinylene group; L12 represents an o-arylene group, an o-heteroarylene group, a vinylene group, or an ethylene group; and L15 represents a trivalent or higher aromatic ring or a trivalent or higher aromatic heterocyclic ring; and a compound represented by formula (2): wherein L21, L22, L23, L24, and L25 each independently represent a group necessary for forming an aromatic ring or a group necessary for forming an aromatic heterocyclic ring; and a method for producing a compound represented by formula (2).Type: GrantFiled: September 12, 2005Date of Patent: November 25, 2008Assignee: Fujifilm CorporationInventor: Jun Ogasawara
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Patent number: 7422800Abstract: To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing at least one light emitting layer, wherein the light emitting layer contains a light emitting material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.Type: GrantFiled: February 25, 2005Date of Patent: September 9, 2008Assignee: Fujifilm CorporationInventors: Masayuki Mishima, Jun Ogasawara
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Patent number: 7422799Abstract: To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, and an electron transport layer between a pair of electrodes, wherein the hole transport layer contains a hole transport material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.Type: GrantFiled: February 25, 2005Date of Patent: September 9, 2008Assignee: Fujifilm CorporationInventors: Masayuki Mishima, Jun Ogasawara
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Publication number: 20080089008Abstract: A multi-layer ceramic capacitor has a temperature characteristic satisfying an X8R property and has a high specific resistance under a high temperature circumstance, in which the dielectric ceramic composition forming the dielectric ceramics is expressed by a formula: BaTiO3+aMgO+bMOx+cReO3/2+dSiO2, wherein MgO represents MgO conversion, MOx represents oxide conversion for 1 atom in 1 molecule of at least one metal selected from V, Cr, and Mn, ReO3/2 represents oxide conversion for 1 atom in 1 molecule of at least one rare earth metal selected from Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Y, and SiO2 represents SiO2 conversion, and wherein 0.4?a?3.0 mol, 0.05?b?0.4 mol, 6.0?c?16.5 mol, 3.0?d?5.0 mol, 2.0?c/d?3.3, based on 100 mol of BaTiO3.Type: ApplicationFiled: October 10, 2007Publication date: April 17, 2008Inventors: Jun Nishikawa, Jun Ogasawara, Nobuyuki Koide
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Patent number: 7282276Abstract: An organic electroluminescent device, which has: at least one organic layer between a pair of electrodes, with at least one layer of the at least one organic layer being a light-emitting layer, and at least one compound that has a structure represented by formula (2), as the compound itself or as its partial structure, in at least one layer of the at least one organic layer: ?wherein, in formula (2), each of A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, and A16 represents a nitrogen atom or a carbon atom that may optionally have a substituent, and at least one of A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15 and A16 is a nitrogen atom.Type: GrantFiled: November 4, 2005Date of Patent: October 16, 2007Assignee: Fujifilm CorporationInventors: Osamu Uchida, Jun Ogasawara, Satoshi Sano
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Publication number: 20070232800Abstract: An organic electroluminescent device having a pair of electrodes, and at least one organic layer interposed between the pair of electrodes, with the organic layer containing at least one compound represented by formula (1): wherein L11, L13, and L14 each independently represent an o-arylene group, an o-heteroarylene group, or a vinylene group; L12 represents an o-arylene group, an o-heteroarylene group, a vinylene group, or an ethylene group; and L15 represents a trivalent or higher aromatic ring or a trivalent or higher aromatic heterocyclic ring; and a compound represented by formula (2): wherein L21, L22, L23, L24, and L25 each independently represent a group necessary for forming an aromatic ring or a group necessary for forming an aromatic heterocyclic ring; and a method for producing a compound represented by formula (2).Type: ApplicationFiled: September 12, 2005Publication date: October 4, 2007Inventor: Jun Ogasawara
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Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound
Patent number: 7196194Abstract: A yellow dye-forming coupler represented by formula (I): wherein Q represents a group of nonmetallic atoms that form a 5- to 7-membered ring in combination with the —N?C—N(R1)—; R1 and R2 each represent a substituent; R4 represents an alkyl group; m represents an integer of 0 to 4; and X represents a hydrogen atom, or a group capable of being split-off upon a coupling reaction with an oxidized product of a developing agent; and when R4 represents a primary alkyl group, R1 represents —(CH2)3O—R101 in which R101 is an alkyl group having 4 to 8 carbon atoms. A silver halide color photographic light-sensitive material having at least one yellow dye-forming coupler represented by formula (I) in at least one layer provided on a support.Type: GrantFiled: October 7, 2003Date of Patent: March 27, 2007Assignee: Fuji Photo Film Co., LtdInventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima, Yasuaki Deguchi, Naoto Matsuda, Akira Ikeda, Hisashi Mikoshiba, Masaharu Sugai, Taiji Katsumata -
Publication number: 20060240285Abstract: An organic electroluminescent device, which has: at least one organic layer between a pair of electrodes, with at least one layer of the at least one organic layer being a light-emitting layer, and at least one compound that has a structure represented by formula (2), as the compound itself or as its partial structure, in at least one layer of the at least one organic layer: wherein, in formula (2), each of A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, and A16 represents a nitrogen atom or a carbon atom that may optionally have a substituent, and at least one of A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15 and A16 is a nitrogen atom.Type: ApplicationFiled: November 4, 2005Publication date: October 26, 2006Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Osamu Uchida, Jun Ogasawara, Satoshi Sano
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Publication number: 20060141285Abstract: An organic electroluminescent device including at least one organic layer between a pair of electrodes, wherein the at least one organic layer includes a luminescent layer, at least one layer of the at least one organic layer includes at least one metal complex containing a tri- or higher-dentate ligand, and a compound represented by formula (I) is contained in an organic layer containing the metal complex and/or in other organic layer(s). In formula (I), R11 to R14 each independently represent a hydrogen atom or a substituent group, and at least one of R11 to R14 represents an aryl or heteroaryl group.Type: ApplicationFiled: November 9, 2005Publication date: June 29, 2006Inventor: Jun Ogasawara
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Patent number: 7060144Abstract: A ceramic capacitor has at least one dielectric layer and at least two electrodes having the dielectric layers therebetween. The dielectric layer includes a sintered body of ceramic grains containing a primary component of a perovskite crystal structure in a form of ABO3 and a ratio A/B of outer portions of the ceramic grains is greater than that of an inner portions thereof.Type: GrantFiled: April 20, 2004Date of Patent: June 13, 2006Assignee: Taiyo Yuden Co., Ltd.Inventors: Jun Ogasawara, Youichi Mizuno
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Publication number: 20060099450Abstract: An organic electroluminescent device comprising at least one organic layer between a pair of electrodes, wherein the organic layers include a luminescent layer, at least one of the organic layers comprises at least one metal complex containing a tri- or higher-dentate ligand, and a compound having a heterocyclic skeleton containing at least two heteroatoms is contained in the organic layer containing the metal complex and/or in other organic layer(s).Type: ApplicationFiled: November 8, 2005Publication date: May 11, 2006Inventor: Jun Ogasawara
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Patent number: 7009048Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I). A method for producing an azomethine dye, which method comprises using a compound of the formula (I): wherein E is an aryl, heterocyclic, or —C(?O)W group, in which W is a nitrogen-containing heterocyclic group, Z is an aryl or heterocyclic group, and X and Y each independently are ?O, ?S or ?N—R, in which R is a substituent, with the proviso that when E is an aryl or heterocyclic group, X and Y each are ?O, and that when E is a —C(?O)W group, Z is a substituted aryl group.Type: GrantFiled: August 6, 2004Date of Patent: March 7, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeki Uehira, Jun Ogasawara, Kiyoshi Takeuchi, Yasuhiro Shimada, Yasuaki Deguchi
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Publication number: 20050238919Abstract: An organic electroluminescent device including a pair of electrodes, and at least one organic layer including a luminescent layer between the pair of electrodes, in which the organic electroluminescent device includes at least one compound selected from the group consisting of the compounds represented by Formula (1), (2) and (3):Type: ApplicationFiled: April 21, 2005Publication date: October 27, 2005Inventor: Jun Ogasawara
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Publication number: 20050214572Abstract: An organic electroluminescence element, which contains at least one organic layer that includes a luminescent layer between a pair of electrodes, wherein the organic layer contains at least one compound represented by formula (1): wherein R11 and R12 each independently represent an aryl or heteroaryl group; when R11 or R12 is a phenyl group, it has no nitrogen-containing heterocyclic group on R11 or R12 as a substituent; Ar11 and Ar12 each independently represent a group represented by formula (2): wherein Ar21 represents an arylene or heteroarylene group; R21, R22, R23, and R24 each independently represent a substituent or a hydrogen atom; L2 represents a substituted or unsubstituted o-arylene or vinylene group, —NR— (R represents a substituent), —O—, or —S—; and m is 0 or 1.Type: ApplicationFiled: March 22, 2005Publication date: September 29, 2005Inventors: Jun Ogasawara, Saisuke Watanabe
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Publication number: 20050202275Abstract: To provide an organic electroluminescent device which suppresses crystallization of a material to be used in an organic electroluminescent device and which is good in luminous characteristics, device drive durability and storage stability, the organic electroluminescent device has at least one organic layer including a light emitting layer between a pair of electrodes, wherein the light emitting layer contains a compound represented by formula (1) defined in the specification and a light emitting material.Type: ApplicationFiled: February 18, 2005Publication date: September 15, 2005Inventors: Jun Ogasawara, Masayuki Mishima
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Publication number: 20050202276Abstract: To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, a block layer, and an electron transport layer between a pair of electrodes, wherein the block layer contains an electron transport material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.Type: ApplicationFiled: February 25, 2005Publication date: September 15, 2005Inventors: Masayuki Mishima, Jun Ogasawara