Patents by Inventor Kazushige Kojima
Kazushige Kojima 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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Patent number: 11965903Abstract: An automated analyzer includes a reagent dispensing probe that dispenses a reagent to a reaction vessel, a sample dispensing probe that dispenses a sample to the reaction vessel, a stirring rod that stirs a sample and a reagent in the reaction vessel, and a storage unit that stores special washing information including information about a condition for performing special washing to prevent sample carryover and a washing method. The automated analyzer further includes: a determination unit that determines whether the special washing is required based on information about the sample dispensed by the sample dispensing probe and the special washing information; and a controller that causes the reagent dispensing probe to dispense a wash liquid to the reaction vessel and causes the stirring rod to stir the wash liquid in the reaction vessel based on the special washing information, when the special washing is performed.Type: GrantFiled: May 28, 2020Date of Patent: April 23, 2024Assignee: JEOL Ltd.Inventors: Kazushige Kojima, Yoshiyuki Nakayama, Masato Nakayama, Arihiro Toyoda, Hiroo Sugimura, Yuta Ikarashi, Yasuhiro Fukumoto, Makoto Asakura
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Publication number: 20200378996Abstract: An automated analyzer includes a reagent dispensing probe that dispenses a reagent to a reaction vessel, a sample dispensing probe that dispenses a sample to the reaction vessel, a stirring rod that stirs a sample and a reagent in the reaction vessel, and a storage unit that stores special washing information including information about a condition for performing special washing to prevent sample carryover and a washing method. The automated analyzer further includes: a determination unit that determines whether the special washing is required based on information about the sample dispensed by the sample dispensing probe and the special washing information; and a controller that causes the reagent dispensing probe to dispense a wash liquid to the reaction vessel and causes the stirring rod to stir the wash liquid in the reaction vessel based on the special washing information, when the special washing is performed.Type: ApplicationFiled: May 28, 2020Publication date: December 3, 2020Inventors: Kazushige Kojima, Yoshiyuki Nakayama, Masato Nakayama, Arihiro Toyoda, Hiroo Sugimura, Yuta Ikarashi, Yasuhiro Fukumoto, Makoto Asakura
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Patent number: 8461572Abstract: There is provided a polymer or low-molecular-weight compound multilayer type organic EL device configured such that a light-emitting layer formed on a hole transport layer includes a mixture of a polymer material and a low-molecular weight material. With such a configuration, the low-molecular-weight material added to the polymer material serves as a binder filling the gap of the steric hindrance to form entanglement of the polymer material and the low-molecular-weight material. This results in that the interface between the hole transport layer and the light-emitting layer is an interface high in adhesion and also high in carrier injectability. Further, optimization of the formation conditions and materials can achieve still higher reliability and longer lifetime.Type: GrantFiled: May 14, 2009Date of Patent: June 11, 2013Assignees: DENSO CORPORATION, Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Masayuki Katayama, Kazushige Kojima, Tetsuya Katoh, Kunio Akedo, Toshikazu Satoh, Koji Noda, Tomohiko Mori, Yoshihiro Kikuzawa, Koichi Sakaguchi
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Patent number: 8043723Abstract: An organic EL device includes: a pair of electrodes; and an organic layer sandwiched between the pair of electrodes. The organic layer includes a compound including layer, and the compound including layer includes a compound of 1,3-bis[N,N-bis{(4?-methylbiphen-4-yl)}amino]-5-N,N-bis(4-methylphenyl) aminobenzene. The heat resistance and the vapor deposition property of the organic layer containing the above tertiary amine compound can be improved.Type: GrantFiled: January 17, 2007Date of Patent: October 25, 2011Assignee: Denso CorporationInventors: Tetsuya Kato, Kazushige Kojima
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Publication number: 20110006288Abstract: There is provided a polymer or low-molecular-weight compound multilayer type organic EL device configured such that a light-emitting layer formed on a hole transport layer includes a mixture of a polymer material and a low-molecular weight material. With such a configuration, the low-molecular-weight material added to the polymer material serves as a binder filling the gap of the steric hindrance to form entanglement of the polymer material and the low-molecular-weight material. This results in that the interface between the hole transport layer and the light-emitting layer is an interface high in adhesion and also high in carrier injectability. Further, optimization of the formation conditions and materials can achieve still higher reliability and longer lifetime.Type: ApplicationFiled: May 14, 2009Publication date: January 13, 2011Inventors: Masayuki Katayama, Kazushige Kojima, Tetsuya Katoh, Kunio Akedo, Toshikazu Satoh, Koji Noda, Tomohiko Mori, Yoshihiro Kikuzawa, Koichi Sakaguchi
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Patent number: 7419727Abstract: This invention has an objective to improve durability at elevated temperature in organic electroluminescent devices using coumarin derivatives as dopant in a luminescent layer. This invention attains the above objective by providing in the organic electroluminescent devices formed by laminating an anode, a hole injection layer, a hole transportation layer, a luminescent layer, an electron transportation layer and a cathode in this order, the luminescent layer which comprises as dopant the green light-emitting coumarin derivative and hole- and electron-transporting substances as host; said coumarin derivative consisting of a plurality of coumarin groups bound to an aromatic ring, heterocycle, or any combination thereof, and exhibiting a glass transition point of 150° C. or higher or a melting point of 297° C. or higher.Type: GrantFiled: February 12, 2004Date of Patent: September 2, 2008Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Kazushige Kojima, Kojiro Tachi, Hisayoshi Fujikawa, Koji Noda, Masahiko Ishii, Yasunori Taga, Makoto Satsuki, Makoto Fujiwara, Natsuko Ishida, Sadaharu Suga
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Patent number: 7402701Abstract: An organic electroluminescent device comprising a light-emitting layer between a pair of electrodes, the light-emitting layer comprising a mixture of a hole-transporting material consisting of a tertiary amine compound, an electron-transporting material and a light-emitting additive material, in which the tertiary amine compound has two or more oxidation potentials determined by a cyclic voltammetry wherein a potential difference between the first oxidation potential and the second oxidation potential in the oxidation potentials is 0.22V or more, and a glass transition temperature of at least 100° C., and the electron-transporting material has a glass transition temperature of at least 100° C.Type: GrantFiled: July 31, 2007Date of Patent: July 22, 2008Assignees: DENSO CORPORATION, Hodogaya Chemical Co., Ltd.Inventors: Tetsuya Kato, Kazushige Kojima, Shigeru Kusano, Makoto Koike, Atsushi Takesue, Mitsutoshi Anzai
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Patent number: 7374830Abstract: An organic EL device includes a pair of electrodes, a light emitter layer obtained by mixing a hole transporting material made of a tertiary amine compound, an electron transporting material and a light emitting additive. The tertiary amine compound constituting the hole transporting material has only one oxidation potential as measured by the cyclic voltammetry. A difference in ionization potential between the hole transporting material and electron transporting material of the light emitter layer is 0.35 eV or greater.Type: GrantFiled: February 22, 2005Date of Patent: May 20, 2008Assignee: Denso CorporationInventors: Tetsuya Kato, Kazushige Kojima
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Patent number: 7357992Abstract: An organic electroluminescent device comprising a light-emitting layer between a pair of electrodes, the light-emitting layer comprising a mixture of a hole-transporting material consisting of a tertiary amine compound, an electron-transporting material and a light-emitting additive material, in which the tertiary amine compound has two or more oxidation potentials determined by a cyclic voltammetry wherein a potential difference between the first oxidation potential and the second oxidation potential in the oxidation potentials is 0.22V or more, and a glass transition temperature of at least 100° C., and the electron-transporting material has a glass transition temperature of at least 100° C.Type: GrantFiled: May 25, 2004Date of Patent: April 15, 2008Assignee: Denso CorporationInventors: Tetsuya Kato, Kazushige Kojima, Takanori Kajioka, Masahiko Ishii
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Publication number: 20070293704Abstract: An organic electroluminescent device comprising a light-emitting layer between a pair of electrodes, the light-emitting layer comprising a mixture of a hole-transporting material consisting of a tertiary amine compound, an electron-transporting material and a light-emitting additive material, in which the tertiary amine compound has two or more oxidation potentials determined by a cyclic voltammetry wherein a potential difference between the first oxidation potential and the second oxidation potential in the oxidation potentials is 0.22V or more, and a glass transition temperature of at least 100° C., and the electron-transporting material has a glass transition temperature of at least 100° C.Type: ApplicationFiled: July 31, 2007Publication date: December 20, 2007Applicants: DENSO CORPORATION, HODOGAYA CHEMICAL CO., LTD.Inventors: Tetsuya Kato, Kazushige Kojima, Shigeru Kusano, Makoto Koike, Atsushi Takesue, Mitsutoshi Anzai
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Publication number: 20070224449Abstract: An organic EL device includes: a pair of electrodes; and an organic layer sandwiched between the pair of electrodes. The organic layer includes a compound including layer, and the compound including layer includes a compound of 1,3-bis [N,N-bis{(4?-methylbiphen-4-yl)}amino]-5-N,N-bis(4-methylphenyl) aminobenzene. The heat resistance and the vapor deposition property of the organic layer containing the above tertiary amine compound can be improved.Type: ApplicationFiled: January 17, 2007Publication date: September 27, 2007Applicant: DENSO CORPORATIONInventors: Tetsuya Kato, Kazushige Kojima
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Publication number: 20060192473Abstract: This invention has an objective to improve durability at elevated temperature in organic electroluminescent devices using coumarin derivatives as dopant in a luminescent layer. This invention attains the above objective by providing in the organic electroluminescent devices formed by laminating an anode, a hole injection layer, a hole transportation layer, a luminescent layer, an electron transportation layer and a cathode in this order, the luminescent layer which comprises as dopant the green light-emitting coumarin derivative and hole- and electron-transporting substances as host; said coumarin derivative consisting of a plurality of coumarin groups bound to an aromatic ring, heterocycle, or any combination thereof, and exhibiting a glass transition point of 150° C. or higher or a melting point of 297° C. or higher.Type: ApplicationFiled: February 12, 2004Publication date: August 31, 2006Inventors: Kazushige Kojima, Kojiro Tachi, Hisayoshi Fujikawa, Koji Noda, Masahiko Ishii, Yasunori Taga, Makoto Satsuki, Makoto Fujiwara, Natsuko Ishida, Sadaharu Suga
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Publication number: 20050184657Abstract: An organic EL device includes a pair of electrodes, a light emitter layer obtained by mixing a hole transporting material made of a tertiary amine compound, an electron transporting material and a light emitting additive. The tertiary amine compound constituting the hole transporting material has only one oxidation potential as measured by the cyclic voltammetry. A difference in ionization potential between the hole transporting material and electron transporting material of the light emitter layer is 0.35 eV or greater.Type: ApplicationFiled: February 22, 2005Publication date: August 25, 2005Inventors: Tetsuya Kato, Kazushige Kojima
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Publication number: 20050064237Abstract: An organic electroluminescent device comprising a light-emitting layer between a pair of electrodes, the light-emitting layer comprising a mixture of a hole-transporting material consisting of a tertiary amine compound, an electron-transporting material and a light-emitting additive material, in which the tertiary amine compound has two or more oxidation potentials determined by a cyclic voltammetry wherein a potential difference between the first oxidation potential and the second oxidation potential in the oxidation potentials is 0.22V or more, and a glass transition temperature of at least 100° C., and the electron-transporting material has a glass transition temperature of at least 100° C.Type: ApplicationFiled: May 25, 2004Publication date: March 24, 2005Inventors: Tetsuya Kato, Kazushige Kojima, Takanori Kajioka, Masahiko Ishii
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Publication number: 20040164673Abstract: An organic electro luminescence display panel includes a hole transport layer and a luminescent layer disposed on the hole transport layer. The luminescent layer includes at least first and second luminescent layers. The first and second luminescent layers are repeatedly arranged on the hole transport layer so as to be adjacent each other. The first luminescent layer includes a first dopant for emitting a first light having a first wavelength, and the second luminescent layer includes a second dopant for emitting a second light having a second wavelength, which is shorter than the first wavelength. No first dopant is disposed between the hole transport layer and the second luminescent layer.Type: ApplicationFiled: February 18, 2004Publication date: August 26, 2004Applicant: DENSO CORPORATIONInventors: Harumi Suzuki, Masaaki Ozaki, Kojiro Tachi, Kazushige Kojima
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Patent number: 6255378Abstract: The present invention provides a polyamide resin composition in which silicate layers originating from a layered silicate and having the below-described property {circle around (1)} are uniformly dispersed on a molecular level in a polyamide resin to accomplish high strength, high modulus, high heat resistance, high toughness, excellent dimensional stability, and high tensile elongation with a small deviation. {circle around (1)}: average particle size from a photograph observation of transmission electron microscopy is 0.1 &mgr;m or less and not including a maximum particle size of 30 &mgr;m or higher.Type: GrantFiled: October 25, 1999Date of Patent: July 3, 2001Assignee: Unitika Ltd.Inventors: Koji Fujimoto, Tsuneo Tamura, Kazushige Kojima, Sachiko Kokuryo, Izumi Yoshida
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Patent number: 6103805Abstract: A polyamide resin composition comprising (A) a reinforced polyamide resin which comprises 100 parts by weight of a nylon 6 homopolymer or copolymer and 1 to 20 parts by weight of a layered silicate uniformly dispersed in the polymer on the molecular level and (B) a non-reinforced polyamide resin, a test specimen of said composition having a tensile weld strength of 45 MPa or higher and a flexural modulus of 4 GPa or higher.Type: GrantFiled: June 22, 1998Date of Patent: August 15, 2000Assignee: Unitika Ltd.Inventors: Kazushige Kojima, Tsuneo Tamura, Koji Fujimoto, Sachiko Kokuryo
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Patent number: 5665831Abstract: The biocompatible multi-block copolymer is obtainable by linear polycondensation of at least two .alpha.,.omega.-dihydroxypolyesters acid and/or .alpha.,.omega.-dihydroxypolyethers with a diisocyanate, diacid halide or phosgene. The block copolymer is preferably degradable in the human or animal body. The block copolymer is suitable for the production of medical implants and surgical aids.Type: GrantFiled: August 10, 1995Date of Patent: September 9, 1997Assignees: Peter Neuenschwander, Georg K. Uhlschmid, Ulrich W. SuterInventors: Peter Neuenschwander, Georg K. Uhlschmid, Ulrich W. Suter, Gianluca Ciardelli, Thomas Hirt, Olivier Keiser, Kazushige Kojima, Andreas Lendlein, Sandro Matter
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Patent number: 5572791Abstract: In an electric guitar, the sound produced upon playing on a string thrown, to a predetermined tension, along and over the fingerboard between the bridge and the head is checked by ear to determine phantom semitone frets with the fingerboard extended imaginarily toward and closer to the bridge and the pickup is mounted on the body at one of the phantom semitone frets. The determination of the installation position for the pickup by reference to vibrations of the string on the basis of the above principle of phantom frets not only assures an improved reproducibility of guitar sounds but enables one to obtain nearly infinite and original sounds from the electric guitar.Type: GrantFiled: April 20, 1994Date of Patent: November 12, 1996Inventor: Kazushige Kojima
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Patent number: 5245004Abstract: A process for forming an ultra-high molecular weight nylon 6 by polymerizing .epsilon.-caprolactam, which comprises heating substantially anhydrous .epsilon.-caprolactam at a temperature of from 100.degree. to 200.degree. C. in the presence of (a) a main catalyst selected from a Grignard compound and a halogenated magnesium lactamate, (b) a co-catalyst selected from an acyl lactam compound and an isocyanic acid ester and (c) at least one activator selected from the group consisting of amides, sulfoxides, thioethers and phosphoric esters. According to this inventive process, an ultra-high molecular weight nylon 6 can be produced within a short period of time, making use of industrially advantageous compounds which are stable in air, hardly dangerous and inexpensive. Being free from cross-linkings, the ultra-high molecular weight nylon 6 obtained by the process of this invention is soluble in various solvents and is useful as a starting material for the production of high strength and high modulus materials.Type: GrantFiled: July 8, 1992Date of Patent: September 14, 1993Assignee: Unitika Ltd.Inventors: Keizo Kyuda, Kazushige Kojima, Mitsunobu Satoh, Takaaki Matsuo