Patents by Inventor Kazunori Noguchi
Kazunori Noguchi 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: 20120263494Abstract: Provided is an electrophotographic photosensitive member which is excellent in terms of both continuous reduction of contact stress with contact members and the like and potential stability during repeated use. A charge transport layer which serves as a surface layer of an electrophotographic photosensitive member has a matrix-domain structure including a matrix containing a component [?] (polycarbonate resin D having a specific repeating structural unit) and a charge-transporting substance and domains containing a component [?] (polycarbonate resin A having a repeating structural unit including a specific siloxane moiety).Type: ApplicationFiled: April 10, 2012Publication date: October 18, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Okuda, Harunobu Ogaki, Kazunori Noguchi, Takashi Anezaki, Kazuhisa Shida, Shio Murai
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Publication number: 20110177438Abstract: A charge transport layer, which is the surface layer of an electrophotographic photosensitive member, contains a charge transporting material, and a polyester resin A having a repeating structural unit including a specific siloxane moiety and at least one of a polyester resin C having a specific structure and a polycarbonate resin D having a specific structure as a binder resin. The content of the siloxane moiety in the polyester resin A is from 5% by mass or more to 30% by mass or less based on the total mass of the polyester resin A. The charge transport layer includes a domain made of the polyester resin A in a matrix made of the charge transporting material and at least one of the polyester resin C and the polycarbonate resin D.Type: ApplicationFiled: January 14, 2011Publication date: July 21, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Kazunori Noguchi, Harunobu Ogaki, Shio Murai, Atsushi Ochi, Koji Takahashi
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Publication number: 20110158683Abstract: An electrophotographic photosensitive member having a surface layer which contains a silicon-containing compound in an amount of less than 0.6% by mass based on the whole solid content in the surface layer, where the silicon-containing compound in the surface layer has a siloxane moiety in an amount of 0.01% by mass or more, based on the whole solid content in the surface layer, and its surface has specific depressions. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.Type: ApplicationFiled: September 24, 2009Publication date: June 30, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Okuda, Hirotoshi Uesugi, Kazunori Noguchi, Tsutomu Nishida
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Patent number: 7838190Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member includes a polymer having a specific repeating structural unit and fluorine-atom-containing resin particles. The fluorine-atom-containing particles in the surface layer are dispersed so as to be provided with particle sizes almost up to those of primary particles.Type: GrantFiled: January 14, 2009Date of Patent: November 23, 2010Assignee: Canon Kabushiki KaishaInventors: Harunobu Ogaki, Nobumichi Miki, Kazunori Noguchi, Nobuo Kosaka
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Publication number: 20100124706Abstract: A secondary battery capable of obtaining superior cycle characteristics and superior swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. An anode active material layer contains a crystalline anode active material having silicon as an element. The anode active material layer has a coating section where the surface of an anode current collector is coated with the anode active material and a non-coating section where the surface of the anode current collector is not coated with the anode active material but is exposed. Thereby, the physical property of the anode active material is hardly deteriorated with age. Further, at the time of charge and discharge, the anode active material layer is hardly expanded and shrunk, and thus the anode current collector is hardly deformed.Type: ApplicationFiled: November 11, 2009Publication date: May 20, 2010Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii
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Publication number: 20100124707Abstract: A secondary battery capable of obtaining superior cycle characteristics and superior swollenness characteristics is provided. The secondary battery includes a cathode and an anode capable of inserting and extracting an electrode reactant; and an electrolyte containing a solvent and an electrolyte salt. The anode has an anode active material layer on an anode current collector. The anode active material layer contains a plurality of crystalline anode active material particles having silicon (Si) as an element. The plurality of anode active material particles contain a spherical particle and a nonspherical particle.Type: ApplicationFiled: November 12, 2009Publication date: May 20, 2010Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii
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Publication number: 20100099018Abstract: A secondary battery capable of improving cycle characteristics, initial charge and discharge characteristics, and swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. A cathode active material layer of the cathode contains a lithium-nickel based composite oxide (LiNi1-xMxO2) as a cathode active material capable of inserting and extracting lithium ions. An anode active material layer of the anode contains a material having silicon as an element as an anode active material capable of inserting and extracting lithium ions.Type: ApplicationFiled: October 14, 2009Publication date: April 22, 2010Applicant: SONY CORPORATIONInventors: Kenichi Kawase, Tomoo Takada, Kazunori Noguchi
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Publication number: 20100092856Abstract: A secondary battery capable of improving the cycle characteristics and the initial charge and discharge characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer on an anode current collector. The anode active material layer contains a crystalline anode active material having silicon as an element, and is linked to the anode current collector.Type: ApplicationFiled: April 7, 2009Publication date: April 15, 2010Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii, Rikako Imoto
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Publication number: 20090317726Abstract: A secondary battery capable of improving the cycle characteristics and the initial charge and discharge characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer on an anode current collector. The anode active material layer contains a crystalline anode active material having silicon as an element, and is linked to the anode current collector.Type: ApplicationFiled: June 25, 2009Publication date: December 24, 2009Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii, Rikako Imoto
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Publication number: 20090311608Abstract: A secondary battery capable of improving the cycle characteristics and the voltage retention characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolyte. The anode includes an anode current collector, an anode active material layer formed on the anode current collector and including an anode active material containing silicon as an element, and a coat formed on the anode active material layer and having an integral structure of three-dimensional network.Type: ApplicationFiled: June 10, 2009Publication date: December 17, 2009Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii, Masaki Kawata
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Patent number: 7629102Abstract: A method for preparing in high productivity and stably an electrophotographic photosensitive member having depressed portions on its surface, is provided. The method is characterized in that a coating liquid for a surface layer which includes a solvent including a hydrophilic solvent and a hydrophobic solvent and a polymer compound soluble in the hydrophobic solvent is used; the hydrophilic solvent has a boiling point equal to or higher than that of the hydrophobic solvent; the hydrophilic solvent has a dipole moment of 0 or more and less than 2.8, obtained by a structure optimized calculation using a semiempirical molecular orbital calculation; the total mass of the hydrophobic solvent is 50 mass % or more and less than 100 mass % of the total mass of the solvent included in the coating liquid for a surface layer; and after the coating liquid for a surface layer is applied, the depressed portions are formed by condensation on the surface on which the coating liquid for a surface layer is applied.Type: GrantFiled: February 4, 2008Date of Patent: December 8, 2009Assignee: Canon Kabushiki KaishaInventors: Atsushi Ochi, Harunobu Ogaki, Kazunori Noguchi, Hiroki Uematsu, Masataka Kawahara
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Publication number: 20090269677Abstract: A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has an anode structure on an anode current collector. The anode structure has a structure in which a plurality of anode active material particles having silicon are held by a plurality of metal fibers forming a three-dimensional network structure. Due to the plurality of metal fibers, sufficient conductive paths are obtained among the plurality of anode active material particles. Thus, compared to a general anode in which an active material layer is provided on a current collector made of a metal foil or the like, the current collectivity is improved.Type: ApplicationFiled: April 23, 2009Publication date: October 29, 2009Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Tomoo Takada, Kazunori Noguchi, Takayuki Fujii
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Publication number: 20090253033Abstract: A secondary battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode active material layer having a plurality of fine pores on an anode current collector. The anode active material layer contains an anode active material and an anode binder. A change rate of a mercury intrusion into the plurality of fine pores measured by mercury penetration technique is distributed to show a peak in the pore diameter range from 30 nm to 10000 nm, both inclusive.Type: ApplicationFiled: April 7, 2009Publication date: October 8, 2009Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii
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Patent number: 7553594Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member includes a polymer having a specific repeating structural unit and fluorine-atom-containing resin particles. The fluorine-atom-containing particles in the surface layer are dispersed so as to be provided with particle sizes almost up to those of primary particles.Type: GrantFiled: April 15, 2008Date of Patent: June 30, 2009Assignee: Canon Kabushiki KaishaInventors: Harunobu Ogaki, Nobumichi Miki, Kazunori Noguchi, Nobuo Kosaka
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Publication number: 20090130576Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member includes a polymer having a specific repeating structural unit and fluorine-atom-containing resin particles. The fluorine-atom-containing particles in the surface layer are dispersed so as to be provided with particle sizes almost up to those of primary particles.Type: ApplicationFiled: January 14, 2009Publication date: May 21, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Harunobu Ogaki, Nobumichi Miki, Kazunori Noguchi, Nobuo Kosaka
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Publication number: 20090111031Abstract: A battery capable of improving the cycle characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer that contains an anode active material containing silicon on an anode current collector, and intensity ratio I1/I2 between peak intensity I1 originated in (220) crystalline plane of silicon obtained by X-ray diffraction and peak intensity I2 originated in (111) crystalline plane of silicon obtained by X-ray diffraction is 0.05 or more.Type: ApplicationFiled: October 30, 2008Publication date: April 30, 2009Applicant: SONY CORPORATIONInventors: Takakazu Hirose, Takayuki Fujii, Kazunori Noguchi, Kenichi Kawase
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Publication number: 20090023091Abstract: A method for preparing in high productivity and stably an electrophotographic photosensitive member having depressed portions on its surface, is provided. The method is characterized in that a coating liquid for a surface layer which includes a solvent including a hydrophilic solvent and a hydrophobic solvent and a polymer compound soluble in the hydrophobic solvent is used; the hydrophilic solvent has a boiling point equal to or higher than that of the hydrophobic solvent; the hydrophilic solvent has a dipole moment of 0 or more and less than 2.8, obtained by a structure optimized calculation using a semiempirical molecular orbital calculation; the total mass of the hydrophobic solvent is 50 mass % or more and less than 100 mass % of the total mass of the solvent included in the coating liquid for a surface layer; and after the coating liquid for a surface layer is applied, the depressed portions are formed by condensation on the surface on which the coating liquid for a surface layer is applied.Type: ApplicationFiled: February 4, 2008Publication date: January 22, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Ochi, Harunobu Ogaki, Kazunori Noguchi, Hiroki Uematsu, Masataka Kawahara
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Publication number: 20080199795Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member includes a polymer having a specific repeating structural unit and fluorine-atom-containing resin particles. The fluorine-atom-containing particles in the surface layer are dispersed so as to be provided with particle sizes almost up to those of primary particles.Type: ApplicationFiled: April 15, 2008Publication date: August 21, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Harunobu Ogaki, Nobumichi Miki, Kazunori Noguchi, Nobuo Kosaka
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Publication number: 20060254693Abstract: A method of production of a multilayer ceramic electronic device having internal electrode layers and dielectric layers having thicknesses of less than 2 ?m, having a step of firing a stack formed using a dielectric layer paste including a dielectric paste dielectric material and an internal electrode layer paste including a sintering inhibiting dielectric material, the dielectric paste dielectric material including a main ingredient material and sub ingredient material, the sintering inhibiting dielectric material in the internal electrode paste including at least a sintering inhibiting main ingredient material, the sintering inhibiting main ingredient material being substantially the same in composition as the main ingredient material included in the dielectric paste dielectric material and having a lattice constant over 3.991 ? and less than 4.064 ?.Type: ApplicationFiled: April 27, 2006Publication date: November 16, 2006Applicant: TDK CorporationInventors: Takako Murosawa, Mari Miyauchi, Kazunori Noguchi, Akira Sato
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Patent number: RE40665Abstract: A multilayer ceramic capacitor 1 having internal electrode layers 3, internal dielectric layers 2 having the thickness of less than 2 ?m, and external dielectric layers 20 wherein; the internal dielectric layers 2 and the external dielectric layers 20 include a plural number of dielectric particles 2a, 20a, and when y1 is ratio(D50a/D50b) of D50a and D50b where D50a is an average particle size of dielectric particles 2a included in the internal dielectric layers 2 and D50b is an average particle size of dielectric particles 20a included in the external dielectric layer 20 and located at least 5 ?m away from an internal electrode layer 3a, arranged outermost part of all the internal electrode layers, to the stacked direction, and x is thickness of the internal dielectric layer 2, y1 and x satisfy the following equations, y1??0.75x+2.275 and y1??0.75x+1.675.Type: GrantFiled: May 10, 2006Date of Patent: March 17, 2009Assignee: TDK CorporationInventors: Takako Murosawa, Kazunori Noguchi, Mari Miyauchi, Akira Sato