Patents by Inventor Taiki Watanabe
Taiki Watanabe 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: 8304096Abstract: Provided are a novel fused polycyclic aromatic compound having a fluoranthene skeleton and an organic light emitting device having high efficiency and high durability. The organic light emitting device includes a fused polycyclic aromatic compound represented by the following general formula [1] or [2], and the organic light emitting device includes an anode, a cathode, an organic compound layer interposed between the anode and the cathode, in which at least one layer of the organic compound layers includes at least one kind of the fused polycyclic aromatic compound represented by the following general formula [1] or [2].Type: GrantFiled: July 9, 2009Date of Patent: November 6, 2012Assignee: Canon Kabushiki KaishaInventors: Taiki Watanabe, Koichi Suzuki, Kazunori Ueno, Koichi Nakata, Takayuki Ito, Hiroki Ohrui, Akihiro Senoo, Naoki Yamada
-
Patent number: 8067099Abstract: Provided is an organic electroluminescent device which has a high efficiency and high durability.Type: GrantFiled: May 19, 2008Date of Patent: November 29, 2011Assignee: Canon Kabushiki KaishaInventors: Taiki Watanabe, Akira Tsuboyama, Kazunori Ueno, Jun Kamatani
-
Patent number: 8039128Abstract: An organic light emitting device having a high efficiency and durability is provided. The organic light emitting device includes an anode, a cathode and a layer formed of an organic compound interposed between the anode and the cathode, and contains at least one kind of the fluorene compound represented by the following general formula (I) or (II): wherein R1 to R4 each represent an alkyl group, a fluorinated alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group; and Ar1 to Ar8 represent a substituted or unsubstituted aryl group or a substituted or unsubstituted polycondensed aromatic group.Type: GrantFiled: May 21, 2008Date of Patent: October 18, 2011Assignee: Canon Kabushiki KaishaInventors: Taiki Watanabe, Kazunori Ueno, Koichi Suzuki, Yohei Iwasaki
-
Patent number: 8007925Abstract: The present invention provides an organic electroluminescence device using a novel phosphorescent metal complex compound and having high efficiency, high luminance, and high durability. The organic electroluminescence device includes a pair of electrodes including an anode and a cathode, and one or more organic layers each containing an organic compound, the one or more organic layers being interposed between the pair of electrodes, wherein at least one of the one or more organic layers contain a phosphorescent metal complex compound having at least one ligand structure represented by the following general formula (1): where at least one of X, Y and Z represents an aromatic oligomer having 13 or more carbon atoms and bonded directly or via a linking group.Type: GrantFiled: June 7, 2007Date of Patent: August 30, 2011Assignee: Canon Kabushiki KaishaInventors: Taiki Watanabe, Akira Tsuboyama, Satoru Shiobara, Koichi Suzuki, Kazunori Ueno
-
Publication number: 20110095284Abstract: Provided are a novel fused polycyclic aromatic compound having a fluoranthene skeleton and an organic light emitting device having high efficiency and high durability. The organic light emitting device includes a fused polycyclic aromatic compound represented by the following general formula [1] or [2], and the organic light emitting device includes an anode, a cathode, an organic compound layer interposed between the anode and the cathode, in which at least one layer of the organic compound layers includes at least one kind of the fused polycyclic aromatic compound represented by the following general formula [1] or [2].Type: ApplicationFiled: July 9, 2009Publication date: April 28, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Watanabe, Koichi Suzuki, Kazunori Ueno, Koichi Nakata, Takayuki Ito, Hiroki Ohrui, Akihiro Senoo, Naoki Yamada
-
Patent number: 7914909Abstract: Provided is an organic electroluminescent device that brings together a high efficiency, high durability, and a high color purity. The organic electroluminescent device includes an anode, a cathode, and a layer including an organic compound interposed between the anode and the cathode, in which the layer contains at least one organic germanium compound having two or more fluorenyl groups per one germanium atom.Type: GrantFiled: June 12, 2008Date of Patent: March 29, 2011Assignee: Canon Kabushiki KaishaInventors: Taiki Watanabe, Kazunori Ueno, Yohei Iwasaki
-
Patent number: 7875368Abstract: Provided is a novel heterocyclic compound which is useful as a material for an organic electroluminescent device. The heterocyclic compound is represented by the general formula [I]: wherein X represents a nitrogen atom or a carbon atom; Y represents O or S; R1 and R2 each represent, independently of one another, a group selected from the group consisting of a substituted or unsubstituted alkyl group and the like; a represents 0 or more and 3 or less; b represents 0 or more and 3 or less; and Ar1 represents a substituted or unsubstituted heterocyclic ring or the like; and n represents an integer of 2 to 10.Type: GrantFiled: November 14, 2007Date of Patent: January 25, 2011Assignee: Canon Kabushiki KaishaInventors: Hiroki Ohrui, Akihiro Senoo, Tetsuya Kosuge, Taiki Watanabe
-
Patent number: 7833634Abstract: Provided a novel 1,8-naphthyridine compound represented by the following general formula [I]: wherein R1 to R6 each represent a hydrogen atom; an alkyl group, a halogen atom; a trifluoromethyl group; and a cyano group, and may be the same as or different from one another, and that at least two of R1 to R6 each represent an aralkyl group, an aryl group, a heterocyclic group, a condensed polycyclic aromatic group, a condensed polycyclic heterocyclic group and an aryloxy group which may be substituted; and a substituted amino group. The 1,8-naphthyridine is employed in an organic compound layer provided between a pair of electrodes in an organic light-emitting device.Type: GrantFiled: June 20, 2006Date of Patent: November 16, 2010Assignee: Canon Kabushiki KaishaInventors: Koichi Suzuki, Hiroshi Tanabe, Chika Negishi, Taiki Watanabe, Akihiro Senoo, Kazunori Ueno
-
Patent number: 7808175Abstract: Provided is a light emitting material of which a light emitting device having high luminous efficiency and high stability and capable of being provided at a low cost can be formed. A light emitting material includes the following partial structural formula (1): wherein at least one of R1 to R10 represents a substituent except a hydrogen atom, a total number of benzene ring structures in R1 to R10 is 3 or more, and R1 to R10 include a trifluoromethyl group, or a linear, branched, or cyclic alkyl or alkoxyl group having 2 or more carbon atoms a hydrogen atom of which may be substituted by a halogen atom.Type: GrantFiled: June 18, 2007Date of Patent: October 5, 2010Assignee: Canon Kabushiki KaishaInventors: Akira Tsuboyama, Koichi Suzuki, Taiki Watanabe, Kazunori Ueno
-
Patent number: 7723915Abstract: An organic light-emitting device adapted for coating and having good emission efficiency and luminance. The organic light-emitting device employs an anode, a cathode, and a layer including an organic compound sandwiched between the anode and cathode. The layer containing the organic compound includes a bisfluorene compound represented by General Formula [1] below. wherein in Formula [1], A is a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, a substituted silylene group, a substituted germylene group, an oxygen atom, and a sulfur atom.Type: GrantFiled: September 5, 2008Date of Patent: May 25, 2010Assignee: Canon Kabushiki KaishaInventors: Yohei Iwasaki, Taiki Watanabe, Satoru Shiobara, Koichi Suzuki, Kazunori Ueno
-
Publication number: 20100072885Abstract: An organic light emitting device having a high efficiency and durability is provided. The organic light emitting device includes an anode, a cathode and a layer formed of an organic compound interposed between the anode and the cathode, and contains at least one kind of the fluorene compound represented by the following general formula (I) or (II): wherein R1 to R4 each represent an alkyl group, a fluorinated alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group; and Ar1 to Ar8 represent a substituted or unsubstituted aryl group or a substituted or unsubstituted polycondensed aromatic group.Type: ApplicationFiled: May 21, 2008Publication date: March 25, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Watanabe, Kazunori Ueno, Koichi Suzuki, Yohei Iwasaki
-
Publication number: 20090082439Abstract: An organic light-emitting device adapted for coating and having good emission efficiency and luminance. The organic light-emitting device employs an anode, a cathode, and a layer including an organic compound sandwiched between the anode and cathode. The layer containing the organic compound includes a bisfluorene compound represented by General Formula [1] below. wherein in Formula [1], A is a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, a substituted silylene group, a substituted germylene group, an oxygen atom, and a sulfur atom.Type: ApplicationFiled: September 5, 2008Publication date: March 26, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yohei Iwasaki, Taiki Watanabe, Satoru Shiobara, Koichi Suzuki, Kazunori Ueno
-
Publication number: 20080309228Abstract: Provided is an organic electroluminescent device that brings together a high efficiency, high durability, and a high color purity. The organic electroluminescent device includes an anode, a cathode, and a layer including an organic compound interposed between the anode and the cathode, in which the layer contains at least one organic germanium compound having two or more fluorenyl groups per one germanium atom.Type: ApplicationFiled: June 12, 2008Publication date: December 18, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Watanabe, Kazunori Ueno, Yohei Iwasaki
-
Publication number: 20080299414Abstract: Provided is an organic electroluminescent device which has a high efficiency and high durability.Type: ApplicationFiled: May 19, 2008Publication date: December 4, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Watanabe, Akira Tsuboyama, Kazunori Ueno, Jun Kamatani
-
Publication number: 20080138656Abstract: Provided is a novel heterocyclic compound which is useful as a material for an organic electroluminescent device. The heterocyclic compound is represented by the general formula [I]: wherein X represents a nitrogen atom or a carbon atom; Y represents O or S; R1 and R2 each represent, independently of one another, a group selected from the group consisting of a substituted or unsubstituted alkyl group and the like; a represents 0 or more and 3 or less; b represents 0 or more and 3 or less; and Ar1 represents a substituted or unsubstituted heterocyclic ring or the like; and n represents an integer of 2 to 10.Type: ApplicationFiled: November 14, 2007Publication date: June 12, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hiroki Ohrui, Akihiro Senoo, Tetsuya Kosuge, Taiki Watanabe
-
Publication number: 20080129192Abstract: The present invention provides an organic light emitting device exhibiting optical output with high light emitting efficiency and high luminance at low applied voltages. The present invention provides an organic light emitting device including: a pair of electrodes formed of an anode and a cathode, at least one of which is transparent or semitransparent; and an organic layer interposed between the pair of electrodes and containing an organic compound, in which the organic layer containing the organic compound includes one or more organic radical compounds. The organic layer containing the organic radical compound is a hole injecting layer, a hole transporting layer, an electron injecting layer, an electron transporting layer, or a light emitting layer.Type: ApplicationFiled: November 20, 2007Publication date: June 5, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Watanabe, Kazunori Ueno, Koichi Suzuki, Akira Tsuboyama
-
Publication number: 20080009627Abstract: Provided is a light emitting material of which a light emitting device having high luminous efficiency and high stability and capable of being provided at a low cost can be formed. A light emitting material includes the following partial structural formula (1): wherein at least one of R1 to R10 represents a substituent except a hydrogen atom, a total number of benzene ring structures in R1 to R10 is 3 or more, and R1 to R10 include a trifluoromethyl group, or a linear, branched, or cyclic alkyl or alkoxyl group having 2 or more carbon atoms a hydrogen atom of which may be substituted by a halogen atom.Type: ApplicationFiled: June 18, 2007Publication date: January 10, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Akira Tsuboyama, Koichi Suzuki, Taiki Watanabe, Kazunori Ueno
-
Publication number: 20070292717Abstract: The present invention provides an organic electroluminescence device using a novel phosphorescent metal complex compound and having high efficiency, high luminance, and high durability. The organic electroluminescence device includes a pair of electrodes including an anode and a cathode, and one or more organic layers each containing an organic compound, the one or more organic layers being interposed between the pair of electrodes, wherein at least one of the one or more organic layers contain a phosphorescent metal complex compound having at least one ligand structure represented by the following general formula (1): where at least one of X, Y and Z represents an aromatic oligomer having 13 or more carbon atoms and bonded directly or via a linking group.Type: ApplicationFiled: June 7, 2007Publication date: December 20, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Watanabe, Akira Tsuboyama, Satoru Shiobara, Koichi Suzuki, Kazunori Ueno
-
Publication number: 20060286408Abstract: Provided a novel 1,8-naphthyridine compound represented by the following general formula [I]: wherein R1 to R6 each represent one selected from the group consisting of a hydrogen atom; an alkyl group, an aralkyl group, an aryl group, a heterocyclic group, a condensed polycyclic aromatic group, a condensed polycyclic heterocyclic group and an aryloxy group which may be substituted; a substituted amino group; a halogen atom; a trifluromethyl group; and a cyano group, and may be the same as or different from one another, provided that at least two of R1 to R6 each represent one selected from the group consisting of an aralkyl group, an aryl group, a heterocyclic group, a condensed polycyclic aromatic group, a condensed polycyclic heterocyclic group and an aryloxy group which may be substituted; and a substituted amino group.Type: ApplicationFiled: June 20, 2006Publication date: December 21, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Koichi Suzuki, Hiroshi Tanabe, Chika Negishi, Taiki Watanabe, Akihiro Senoo, Kazunori Ueno
-
Patent number: 6186764Abstract: The injection molding machine comprises the closing mechanism 5 having the nozzle touch member 3 to close the tip opening 1a of the nozzle 1 and the electric heater 6 to regulate the temperature of the nozzle touch member 3. The closing member 5 is constituted in such a manner as the arm 13 is pivotally supported on the jacket cover 11 mounted on the nozzle 1, the cylinder 7 is mounted on mounting member 14 provided at the tip of the arm 13, and the nozzle touch member 3 is supported at the tip of the piston rod 7a. The electric heater 6 is arranged around the nozzle touch member 3. When the arm 13 is rotated from the retreated position R to the closed position C by the actuation of the rotor 8, the nozzle touch member 3 is faced to the tip opening 1a of the nozzle 1, and by extending the cylinder 7, the nozzle touch member 3 regulated to the temperature suitable for the resin material by the electric heater 6 closes the tip opening 1a from its front surface.Type: GrantFiled: December 11, 1998Date of Patent: February 13, 2001Assignees: Kabushiki Kaisha Meiki Seisakusho, Sanko Gosei Ltd.Inventors: Katsumi Murase, Taiki Watanabe, Shozo Honda