Carbazole Per Se Or Alkyl Substituted Only Patents (Class 548/446)
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Patent number: 11296280Abstract: It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms.Type: GrantFiled: June 14, 2019Date of Patent: April 5, 2022Inventors: Harue Nakashima, Sachiko Kawakami, Kumi Kojima, Ryoji Nomura, Nobuharu Ohsawa
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Publication number: 20150108449Abstract: An organic light-emitting material having the structure of formula (I) or (II) as described below and an organic light-emitting device (OLED) are disclosed. The OLED adopts the compound containing fluoranthene group as the electron transport material possessing good electron transport and injection ability. The material also enhances the luminous efficiency and lifetime of the device because of its excellent thermal stability and film-forming properties. At the same time, the high triplet energy and excellent electron transport capacity of the material containing fluoranthene group make it suitable to be used as the host for phosphorescent devices, increasing the number of electrons in the light-emitting layer and the efficiency of the device.Type: ApplicationFiled: June 5, 2013Publication date: April 23, 2015Inventors: Jinhai Huang, Lei Dai, Jinxin Chen, Lifei Cai
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Publication number: 20140353617Abstract: A condensed compound is represented by Formula 1 below: An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode disposed opposite to the first electrode, and an organic layer interposed between the first electrode and the second electrode. The organic layer includes at least one layer including a compound of Formula 1.Type: ApplicationFiled: November 22, 2013Publication date: December 4, 2014Applicant: Samsung Display Co., Ltd.Inventors: Soo-Yon KIM, Seok-Hwan HWANG, Young-Kook KIM, Jun-Ha PARK, Hye-Jin JUNG, Eun-Young LEE, Sang-Hyun HAN, Jin-O LIM
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Publication number: 20140332772Abstract: A styryl-based compound represented by Formula 1 below is disclosed. An organic light-emitting diode including the styryl-based compound is also disclosed.Type: ApplicationFiled: November 8, 2013Publication date: November 13, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Jong-Hyuk Lee
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Publication number: 20140225968Abstract: The present invention provides a novel organic compound having a high quantum yield and a high color purity. Provided is an organic compound represented by Formula (1) described in Claim 1. In Formula (1), R1 to R20 are each independently selected from hydrogen atoms, halogen atoms, substituted or unsubstituted alkyl groups, substituted or unsubstituted alkoxy groups, substituted or unsubstituted amino groups, substituted or unsubstituted aryl groups, substituted or unsubstituted heterocyclic groups, substituted or unsubstituted aryloxy groups, substituted or unsubstituted thiol groups, silyl groups, and cyano groups.Type: ApplicationFiled: September 5, 2012Publication date: August 14, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Jun Kamatani, Naoki Yamada, Akihito Saitoh
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Publication number: 20140183463Abstract: A condensed cyclic compound is represented by Formula 1, and an organic light-emitting device includes the condensed cyclic compound. The organic light-emitting device may include an organic layer containing the condensed-cyclic compound of Formula 1 and has low driving voltage, high emission efficiency, and long lifespan characteristics.Type: ApplicationFiled: August 21, 2013Publication date: July 3, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Eun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jun-Ha Park, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
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Patent number: 8722905Abstract: Disclosed is a dye, having a chemical formula: wherein each R1 is independently selected from hydrogen, —(CxH2x+1), —(CyH2y)—S—(CxH2x+1), or —(CyH2y)—N(CxH2x+1)2; Ar1 is wherein each R2 is independently selected from —(CxH2x+1), —(CxH2x)—S—(CxH2x+1), or (CxH2x)—N(CxH2x+1)2; Ar2 is wherein each R3 is independently selected from hydrogen, —(CxH2x+1), —(CyH2y)—S—(CxH2x+1), or —(CyH2y)—N(CxH2x+1)2; X is sulfur, oxygen, selenium, or N—R4, and R4 is —(CxH2x+1); m is in integer of 1 to 4; x is an integer of 1 to 20; and y is an integer of 0 to 20. The dye can be applied to a photoelectric conversion device.Type: GrantFiled: August 3, 2012Date of Patent: May 13, 2014Assignee: Industrial Technology Research InstituteInventors: Yao-Shan Wu, Yung-Liang Tung, Jen-An Chen, Chun-Guey Wu, Jheng-Ying Li
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Publication number: 20140081031Abstract: Novel anthracene derivatives are provided. Further, a light-emitting element, a light-emitting device, and an electronic appliance each using the novel anthracene derivative are provided. Anthracene derivatives represented by general formulae (G11) and (G21) are provided. The anthracene derivatives represented by the general formulae (G11) and (G21) each emit blue light with high color purity and have a carrier-transporting property. Therefore, each of the anthracene derivatives represented by the general formulae (G11) and (G21) is suitable for use in a light-emitting element, a light-emitting device, and an electronic appliance.Type: ApplicationFiled: November 20, 2013Publication date: March 20, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Sachiko KAWAKAMI, Tsunenori SUZUKI, Nobuharu OHSAWA, Satoko SHITAGAKI, Satoshi SEO
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Patent number: 8558007Abstract: A polymer and an organic light-emitting device including the polymer are provided, wherein the polymer comprises a polymeric unit represented by the Formula: In which variables are as defined herein.Type: GrantFiled: October 21, 2010Date of Patent: October 15, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-yeon Yang, Won-jae Joo, Jhun-mo Son, Ho-suk Kang
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Publication number: 20130253206Abstract: Novel anthracene derivatives, novel materials capable of blue light emission with high color purity, and a light-emitting element, a light-emitting device, and an electronic device using any of the novel materials. The anthracene derivative represented by general formula (1) is provided. With the anthracene derivative, a light-emitting element with high emission efficiency can be provided. With the anthracene derivative, a light-emitting element emitting blue light with high color purity can be provided. In the formula, A1 represents a substituted or unsubstituted phenyl group, B1 represents any of an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group, a represents any of a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyl-4,4?-diyl group, and R1 to R9 individually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl group.Type: ApplicationFiled: May 14, 2013Publication date: September 26, 2013Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Harue OSAKA, Sachiko KAWAKAMI, Nobuharu OHSAWA, Satoshi SEO
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Patent number: 8519154Abstract: The present invention relates to a method for the treatment of bronchial asthma and chronic obstructive pulmonary disease (COPD) comprising administering to the patient suffering from asthma and COPD an effective dose of carbazole derivatives or salt thereof, optionally along with pharmaceutically acceptable excipients. Structural formula of the compounds of general formula 1 useful as phosphodiesterase-4 (PDE-4) enzyme inhibitors, inhibitor for signalling molecule for the treatment of asthma and asthma related diseases is given below: wherein R1=H or OCH3; R2?CH3 or CHO; R3?H or OCH3; R4?H or OCH3 Herbal route for the isolation of compound of general formula 1 from the bark of plant Murraya Koenigii and chemical route for the preparation of such compounds from basic compounds such as vanillin is also reported.Type: GrantFiled: February 3, 2012Date of Patent: August 27, 2013Assignee: Council of Scientific & Industrial ResearchInventors: Sibabrata Mukhopadhyay, Mumu Chakraborty, Tulika Mukherjee, Arun Bandyopadhyay, Dipak Kar, Tanima Banerjee, Aditya Konar, Debaprasad Jana, Siddhartha Roy, Santu Bandyopadhyay, Balram Ghosh, Mabalirajan Ulaganathan, Rakesh Kamal Johri, Subhash Chander Sharma, Gurdarshan Singh, Bholanath Paul, Vasanta Madhava Sharma Gangavaram, Jhillu Singh Yadav, Radha Krishna Palakodety
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Publication number: 20130056722Abstract: A novel organic compound is suitable for emitting green light. An organic light-emitting device includes the novel organic compound.Type: ApplicationFiled: May 11, 2011Publication date: March 7, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Yosuke Nishide, Jun Kamatani, Akihito Saitoh
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Publication number: 20120299474Abstract: Provided are a light emitting material comprising one or more tetraphenylethene (TPE) derivatives of formula (1a) with high thermal stability and high solid quantum yield efficiency, and an electroluminescent or light emitting device such as OLED comprising the same TPE derivatives and a method of preparing the same.Type: ApplicationFiled: March 1, 2011Publication date: November 29, 2012Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Benzhong Tang, Zujin Zhao, Ka Wai Jim, Wing Yip Lam, Shuming Chen, Hoi Sing Kwok
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Patent number: 8129037Abstract: The present invention relates to the improvement of organic electroluminescent devices, in particular blue-emitting devices, by using compounds of the formula (1) as host materials in the emitting layer.Type: GrantFiled: September 20, 2005Date of Patent: March 6, 2012Assignee: Merck Patent GmbHInventors: Philipp Stössel, Arne Büsing, Horst Vestweber, Holger Heil
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Patent number: 7923129Abstract: Provided is an organic light emitting device including: a pair of electrodes including an anode and a cathode; and at least one layer formed of an organic compound interposed between the pair of electrodes, in which the at least one layer formed of the organic compound layer contains at least one kind of the carbazole derivative represented by the following general formula (I). The organic light emitting device has an optical output with extremely high efficiency and a high luminance and has an extremely high durability.Type: GrantFiled: November 28, 2007Date of Patent: April 12, 2011Assignee: Canon Kabushiki KaishaInventors: Satoshi Igawa, Shinjiro Okada, Takao Takiguchi, Jun Kamatani
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Publication number: 20110077406Abstract: Embodiments of the invention provide methods and materials for chemical cross-coupling reactions that utilize unconventional phenol derivatives as cross-coupling partners. Embodiments of the invention can be used to synthesize a variety of useful organic compounds, for example the anti-inflammatory drug flurbiprofen.Type: ApplicationFiled: September 24, 2010Publication date: March 31, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Neil K. Garg, Kyle W. Quasdorf, Xia Tian
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Publication number: 20110050118Abstract: It is an object to provide a novel method for synthesizing an anthracene derivative with the small number of steps. It is another object to provide a novel anthracene derivative. It is further another object to provide a light-emitting element, a light-emitting device, and an electronic device, each using the anthracene derivative. A method for synthesizing an anthracene derivative represented by a general formula (1) is provided by coupling a 9-arylanthracene derivative having an active site at a 10-position with a 9-arylcarbazole derivative having an active site in an aryl group using metal, a metal compound, or a metal catalyst.Type: ApplicationFiled: November 5, 2010Publication date: March 3, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Masakazu EGAWA, Sachiko KAWAKAMI
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Patent number: 7816021Abstract: Provided are a carbazole-based compound represented by Formula 1 below and an organic light-emitting device including an organic layer including the carbazole-based compound: wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are as defined in the specification. The carbazole-based compound has good electrical characteristics and charge transport capability, and thus, is useful as a hole injection material, a hole transport material, and/or an emitting material for fluorescent or phosphorescent devices capable of producing light of a full spectrum of colors, including red, green, blue, and white, thereby making it possible to produce an organic light-emitting device with high efficiency, a low driving voltage, and high brightness.Type: GrantFiled: October 29, 2007Date of Patent: October 19, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak
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Publication number: 20100187505Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.Type: ApplicationFiled: April 29, 2008Publication date: July 29, 2010Inventors: Philipp Stoessel, Arne Buesing, Holger Heil
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Publication number: 20100181900Abstract: A carbazole compound represented by Formula 1: wherein X1, X2 and X3 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylalkyl group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C3-C20 cycloalkyl group and a substituted or unsubstituted C5-C30 heterocycloalkyl group; and l, m and n are each independently an integer from 0 to 5.Type: ApplicationFiled: October 27, 2009Publication date: July 22, 2010Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Yi-yeol Lyu, Kook-heon Char, Chang-hee Lee, Jeong-hun Kwak
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Publication number: 20100156283Abstract: Naphthylcarbazole derivatives are provided. The naphthylcarbazole derivatives are represented by Formula 1. Further provided are KL host materials, organic electroluminescent devices employing the host materials, and displays and lighting systems comprising the devices.Type: ApplicationFiled: March 27, 2008Publication date: June 24, 2010Applicant: DONGWOO FINE-CHEMInventors: Kyong Min Kang, Deug Sang Lee, Chang Jun Lee, Kyoung Moon Go, Jong Soon Lee, Se Hoon Kim
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Publication number: 20100123389Abstract: A light-emitting compound includes two or more carbazole skeletons each having two or more fluorine atoms at 2-, 4-, 5- and 7-positions, the carbazole skeleton represented by the formula (1): where two or more of R2, R4, R5 and R7 are F and a remainder is H.Type: ApplicationFiled: November 11, 2009Publication date: May 20, 2010Inventors: Isao Takasu, Ryoko Iida, Yukitami Mizuno, Shintaro Enomoto, Shuichi Uchikoga
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Publication number: 20100101456Abstract: The invention accordingly relates to a method for preparing transparent C.I. Pigment Violet 23 by salt kneading a Pigment Violet 23-crude in the presence of a crystalline salt and an organic liquid. Said method is characterized in that the organic liquid is propylene carbonate.Type: ApplicationFiled: February 28, 2008Publication date: April 29, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Wolfgang Hoyer, Leonhard Unverdorben
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Publication number: 20100025661Abstract: The subject of the present invention is to provide an emission material which contributes to high emission efficiency, low drive voltage, excellent heat resistance and long life in an organic electroluminescent device, particularly an emission material which is excellent in emission of blue color. Further, the subject is to provide an organic electroluminescent device using the above emission material. The above subjects can be achieved by an emission material represented by Formula (1) and an organic electroluminescent device comprising the same. wherein R1 to R7 are independently hydrogen, alkyl or cycloalkyl; Ar1 is one selected from the group consisting of non-condensed aryl having 6 to 50 carbon atoms, 2-naphthyl, 9-phenanthryl, 6-chrysenyl, 2-triphenylenyl, 2-fluorenyl, 9-carbazolyl, 2-thienyl and 2-benzothienyl; and Ar2 and Ar3 are independently non-condensed aryl having 6 to 50 carbon atoms, condensed aryl having 10 to 50 carbon atoms or heteroaryl having 2 to 50 carbon atoms.Type: ApplicationFiled: June 24, 2005Publication date: February 4, 2010Inventors: Guofang Wang, Manabu Uchida, Youhei Ono
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Publication number: 20090253916Abstract: A novel anthracene derivative with a large energy gap is provided. An anthracene derivative represented by General Formula (G1) below is provided. In the formula, Ar1 and Ar2 independently represent an aryl group with 6 to 13 carbon atoms in a ring, R1 and R2 independently represent any of hydrogen, an alkyl group with 1 to 4 carbon atoms, or an aryl group with 6 to 13 carbon atoms in a ring, and each of Ar1, Ar2, R1, and R2 may have a substituent and the two substituents may be bonded to each other to form a ring.Type: ApplicationFiled: March 31, 2009Publication date: October 8, 2009Inventors: Sachiko Kawakami, Tsunenori Suzuki, Nobuharu Ohsawa, Satoko Shitagaki, Satoshi Seo
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Publication number: 20090179196Abstract: The object is to provide a light-emitting transistor material which is high in both luminescent property and mobility when used as a light-emitting transistor device. A light-emitting transistor device is provided in which light emission of a specific pyrene-based organic compound is used for a light-emitting layer of a transistor device.Type: ApplicationFiled: March 20, 2007Publication date: July 16, 2009Inventors: Chihaya Adachi, Takahito Oyamada, Hiroyuki Uchiuzou, Seiji Akiyama, Takayoshi Takahashi, Kumiko Takenouchi, Masaki Shimizu, Tamejiro Hiyama, Etsuya Okamoto
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Publication number: 20090174321Abstract: Novel anthracene derivatives, novel materials capable of blue light emission with high color purity, and a light-emitting element, a light-emitting device, and an electronic device using any of the novel materials. The anthracene derivative represented by general formula (1) is provided. With the anthracene derivative, a light-emitting element with high emission efficiency can be provided. With the anthracene derivative, a light-emitting element emitting blue light with high color purity can be provided. In the formula, A1 represents a substituted or unsubstituted phenyl group, B1 represents any of an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group, ? represents any of a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyl-4,4?-diyl group, and R1 to R9 individually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl group.Type: ApplicationFiled: December 16, 2008Publication date: July 9, 2009Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Harue OSAKA, Sachiko KAWAKAMI, Nobuharu OHSAWA, Satoshi SEO
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Publication number: 20090153021Abstract: Polymers and compounds having high-triplet-energy; guest-host films comprising the polymers or compounds as hosts and phosphorescent compounds as guests; and electroluminescent devices that include the films.Type: ApplicationFiled: November 7, 2008Publication date: June 18, 2009Applicant: WASHINGTON, UNIVERSITY OFInventors: Kwan-Yue Jen, Shi Michelle Lui, Yu-Hua Niu
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Publication number: 20090043109Abstract: A family of one- and two-photon dyes that have overlapping fluorescence excitation maxima between 365 nm and 425 nm and that are specifically functionalized for coupling to biomolecules. The dyes have defined Stokes shifts such that they produce a continuum of emission wavelengths. The dyes are asymmetrical bis stilbenes. The asymmetry of these dyes facilitates functionalization of the dyes with carboxyl, thiol, aldehyde-reactive or amine-reactive groups, which in turn facilitates coupling with macromolecules. Furthermore, the dyes of the present invention are photostable and have high quantum yields (fluorescence intensity).Type: ApplicationFiled: August 7, 2007Publication date: February 12, 2009Inventors: Brenda D. Spangler, Charles W. Spangler, E. Scott Tarter
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Publication number: 20090026919Abstract: The present invention relates to the improvement of organic electroluminescent devices, in particular blue-emitting devices, by using compounds of the formula (1) as host materials in the emitting layer.Type: ApplicationFiled: September 20, 2005Publication date: January 29, 2009Applicant: Merck Paten GmbH Patents & Scientific InformationInventors: Philipp Stossel, Arne Busing, Horst Vestweber, Holger Heil
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Publication number: 20090015140Abstract: It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material.Type: ApplicationFiled: March 28, 2005Publication date: January 15, 2009Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
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Publication number: 20080315754Abstract: Provided are a novel anthracene derivative of a specific structure in which benzofuran or benzothiophene is bonded to anthracene through an arylene group, a material for an organic electroluminescence device and a light emitting material for an organic electroluminescence device each containing the anthracene derivative, and an organic electroluminescence device including an organic thin film layer formed of one or plural layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, in which at least one layer of the organic thin film layer contains the anthracene derivative alone or as a component of a mixture. The organic electroluminescence device has high luminous efficiency and is capable of emitting light with a long lifetime, and the device can be realized by the anthracene derivative.Type: ApplicationFiled: May 21, 2008Publication date: December 25, 2008Applicants: Idemitsu Kosan Co., Ltd., Sony CorporationInventors: Masahiro KAWAMURA, Takashi Obikawa, Shigeyuki Matsunami, Ichinori Takada, Yasunori Kijima
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Publication number: 20080174237Abstract: Provided are a carbazole-based compound represented by Formula 1 below and an organic light-emitting device including an organic layer including the carbazole-based compound: wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are as defined in the specification. The carbazole-based compound has good electrical characteristics and charge transport capability, and thus, is useful as a hole injection material, a hole transport material, and/or an emitting material for fluorescent or phosphorescent devices capable of producing light of a full spectrum of colors, including red, green, blue, and white, thereby making it possible to produce an organic light-emitting device with high efficiency, a low driving voltage, and high brightness.Type: ApplicationFiled: October 29, 2007Publication date: July 24, 2008Applicant: Samsung SDI Co., Ltd.Inventors: Young-Kook KIM, Seok-Hwan HWANG, Yoon-Hyun Kwak
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Publication number: 20080138625Abstract: The invention provides compounds of formula I wherein R is H or alkyl; R1, R2, and R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 and R5 are independently at each occurrence hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; and a, b and d are independently 0 or an integer ranging from 1 to 3. The invention further provides polymers derived from compounds of formula I, said polymers may be polyesters, polyethers, polycarbonates, polyestercarbonates, polyetherketones, polyethersulfones, and the like. Compounds and polymers of the invention find use in light emitting devices.Type: ApplicationFiled: December 11, 2006Publication date: June 12, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Qing Ye, Jie Liu
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Publication number: 20080131731Abstract: Provided is an organic light emitting device including: a pair of electrodes including an anode and a cathode; and at least one layer formed of an organic compound interposed between the pair of electrodes, in which the at least one layer formed of the organic compound layer contains at least one kind of the carbazole derivative represented by the following general formula (I). The organic light emitting device has an optical output with extremely high efficiency and a high luminance and has an extremely high durability.Type: ApplicationFiled: November 28, 2007Publication date: June 5, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Satoshi Igawa, Shinjiro Okada, Takao Takiguchi, Jun Kamatani
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Publication number: 20080102402Abstract: A photoresist monomer having a sulfonyl group, a polymer thereof and a photoresist composition containing the same are disclosed. The photoresist monomer is represented by following Formula. wherein, R* is a hydrogen atom or a methyl group, R1 and R2 are independently a C1˜C20 alkyl group, a C4˜C20 cycloalkyl group, a C6˜C20 aryl group or a C7˜C20 arylalkyl group, one of R1 and R2 may not exist, and R1 and R2 can be connected to form a ring.Type: ApplicationFiled: October 24, 2007Publication date: May 1, 2008Inventors: Jung-Youl LEE, Geun-Jong Yu, Sang-Jung Kim, Jae-Woo Lee, Deog-Bae Kim, Jae-Hyun Kim
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Patent number: 6933390Abstract: The invention concerns a process for the preparation of N-aryl-aza-heterocycles of the general formula I by reaction of aza-heterocycles with activated aryl halides with use of caesium carbonate without addition of further catalysts at room temperature.Type: GrantFiled: July 15, 2004Date of Patent: August 23, 2005Assignee: Warner-Lambert CompanyInventors: Hubert Barth, Klaus Steiner, Simon Schneider, Ulrich Bayer, Manfred Westermayer, Ulrike Wolfsperger, Hans-Jürgen Betche
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Publication number: 20040063012Abstract: An improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate wherein the photoconductive element hasType: ApplicationFiled: June 9, 2003Publication date: April 1, 2004Inventors: Nusrallah Jubran, Zbigniew Tokarski, Kam W. Law
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Method of catalytically removing a protective group containing an allyl group using a reducing agent
Patent number: 6437133Abstract: A method of efficiently removing the protective group from a protected hydroxyl or amino group with an allyl derivative by one step reaction under neutral conditions. A protected hydroxyl or amino group is converted into a free hydroxyl or amino group in one-step by adding a reducing agent to an allyl derivative in the presence of nickel dichlorobis (diphenylphospino) propane.Type: GrantFiled: May 11, 2000Date of Patent: August 20, 2002Assignee: Chisso CorporationInventors: Kunio Ogasawara, Takahiko Taniguchi -
Patent number: 6235755Abstract: The present invention provides non-peptidic amino derivatives, their therapeutic use as well as pharmaceutical compositions that possess activity as Follicle Stimulating Hormone (FSH) agonists and are useful in the for treatment of infertility. In particular, the invention provides cyclic and acyclic alpha- and beta-aminocarboxamides, more particularly tetrahydroisoquinolinecarboxamides, piperidinecarboxamides, pyrrolidinecarboxamides, and 2-amino-3-carboxamidopyridine derivatives.Type: GrantFiled: August 5, 1999Date of Patent: May 22, 2001Assignee: Applied Research Systems ARS Holding N.A.Inventors: Nabil El Tayer, Adulla Reddy, David Buckler, Sharad Magar
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Patent number: 5856516Abstract: Carbazole can be prepared by dehydrogenation of compounds of the formula ##STR1## or by aminating dehydrogenation of compounds of the formula ##STR2## at 300.degree. to 600.degree. C. in the presence of hydrogen over an iridium catalyst or an iridium-containing catalyst.Type: GrantFiled: August 15, 1997Date of Patent: January 5, 1999Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Reinhard Langer, Ulrich Notheis, Alexander Klausener
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Patent number: 5817831Abstract: Aliphatic hydrocarbyl-substituted aromatic amines are prepared by reacting an aromatic amine and an aliphatic hydrocarbylating agent, such as an olefin, in the presence of a heteropolyacid catalyst such as Cs.sub.2.5 H.sub.0.5 PW.sub.12 O.sub.40, for a period of time and at a temperature sufficient to permit reaction.Type: GrantFiled: September 8, 1997Date of Patent: October 6, 1998Assignee: The Lubrizol CorporationInventors: Douglas C. Rhubright, James D. Burrington, Ping Y. Zhu
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Patent number: 5760247Abstract: Diphenylamine can be dehydrocyclized on noble metal catalysts in the liquid phase at temperatures of 200.degree. to 340.degree. C. The reaction proceeds with a surprisingly high selectivity.Type: GrantFiled: May 20, 1997Date of Patent: June 2, 1998Assignee: Bayer AktiengesellschaftInventors: Albert Schnatterer, Helmut Fiege, Joerg-Dietrich Jentsch, Eberhard Zirngiebl
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Patent number: 5708178Abstract: Novel acceptor-donor-acceptor and donor-acceptor-donor compounds for use in forming a thermally-stable electro-optic waveguide are disclosed. Also disclosed is a thermally stable waveguide material containing thermally stable acceptor-donor-acceptor or donor-acceptor-donor guest dipole compounds in a temperature-resistant polymer matrix. The waveguide has selected regions in which the net dipoles of the guest molecules are oriented, for electro-optic switching when an electric field is placed across these regions.Type: GrantFiled: September 20, 1996Date of Patent: January 13, 1998Assignee: Lockheed Martin CorporationInventors: Susan P. Ermer, Doris S. Y. Leung, Steven M. Lovejoy
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Patent number: 5519134Abstract: Novel pyrrolidine monomers bearing various functional groups are used to prepare oligomeric structures. The pyrrolidine monomers can be joined via standard phosphate linkages including phosphodiester and phosphorothioate linkages. Useful functional groups include nucleobases as well as polar groups, hydrophobic groups, ionic groups, aromatic groups and/or groups that participate in hydrogen-bonding.Type: GrantFiled: January 11, 1994Date of Patent: May 21, 1996Assignee: Isis Pharmaceuticals, Inc.Inventors: Oscar L. Acevedo, Normand Hebert
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Patent number: 5476644Abstract: The present invention provides compounds of the formula ##STR1## chelated with a paramagnetic metal ion wherein Z1 and Z2 each represent the atoms necessary to complete a monocyclic or polycyclic carbocyclic or heterocyclic ring system, said Z1 and Z2 independently optionally substituted with R.sup.6 and R.sup.7, respectively;R.sup.l, R.sup.2, R.sup.3 and R.sup.4 are independently carboxyalkyl (C.sub.1 -C.sub.2), --(CH.sub.2).sub.n --C(.dbd.O)--NH--R.sup.8, or --(CH.sub.2).sub.n --C(.dbd.O)--O--R.sup.8R.sup.5 is carboxyalkyl (C.sub.1 -C.sub.2);R.sup.6 and R.sup.7 are independently hydrogen, benzyl, or benzyloxy, said benzyl or benzyloxy optionally substituted with one, two or three substituents selected from the group consisting of amino, isocyanato (--N.dbd.C.dbd.O), isothiocyanato (--N.dbd.C.dbd.S), --NH--C(.dbd.O)--X or --NH--C(.dbd.S)--X;R.sup.8 is alkyl (C.sub.1 -C.sub.20), --(CH.sub.2).sub.m --Ar, or polyhydroxyalkyl (C.sub.1 -C.sub.Type: GrantFiled: April 13, 1994Date of Patent: December 19, 1995Assignee: Sterling Winthrop Inc.Inventors: Carl R. Illig, Thomas J. Caulfield, John L. Toner, Peng Guo, David L. Ladd
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Patent number: 4864033Abstract: The present invention relates to novel liquid crystalline compounds having the following formula: ##STR1## In the above formula, a is 1 or 2, or R.sub.1 and R.sub.2 may be virtually any chemical groups which will maintain the liquid crystalline properties of the resultant compound. The novel compounds of the present invention contain a biphenylcarboxylate ester moiety so as to define a new class of liquid crystalline compounds. The present invention further includes polymers made from the novel liquid crystalline compounds by attaching the compounds to a polymer backbone such as a polysiloxane backbone. Additionally, the present invention also contemplates methods for using such polymers as stationary phases in the chromatographic analysis of various chemical compounds, such as polycyclic aromatic hydrocarbons (PAH).Type: GrantFiled: November 27, 1985Date of Patent: September 5, 1989Assignee: Brigham Young UniversityInventors: Jerald S. Bradshaw, Brian A. Jones, Karin E. Markides, Milton L. Lee
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Patent number: 4628106Abstract: The invention relates to a process for the preparation of 2-hydroxy-(9H)-carbazole. In this process, 1,2,3,4-tetrahydro-7-hydroxy-(9H)-carbazole is dehydrogenated in an inert organic solvent.Type: GrantFiled: March 19, 1985Date of Patent: December 9, 1986Assignee: Hoechst AktiengesellschaftInventors: Otto E. Schweikert, Walter Reimann, Werner Wykypiel, Karl E. Mack
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Patent number: 4417048Abstract: Organonitrogen compounds bearing a labile hydrogen atom directly bonded to a reactive nitrogen function, e.g., nitrogen heterocycles or substituted anilines, are N-alkylated with an N-alkylating agent in the presence of inorganic base and at least one sequestering agent having the structural formula:N--CHR.sub.1 --CHR.sub.2 --O--(CHR.sub.3 --CHR.sub.4 --O).sub.n --R.sub.5 ].sub.3 (I)wherein n is a number ranging from 0 to 10, R.sub.1, R.sub.2, R.sub.3, R.sub.4, which may be identical or different, each represents a hydrogen atom or an alkyl radical having 1 to 4 carbon atoms, and R.sub.5 represents an alkyl or cycloalkyl radical having 1 to 12 carbon atoms, a phenyl radical, or a radical of the formula --C.sub.m H.sub.2m --.phi., or C.sub.m H.sub.2m+1 --.phi.--, m ranging from 1 to about 12 and .phi. being phenyl.Type: GrantFiled: February 24, 1982Date of Patent: November 22, 1983Assignee: Rhone-Poulenc Specialties ChimiquesInventors: Gerard Soula, Maurice Balme