Patents by Inventor Makoto Koike
Makoto Koike 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: 8808951Abstract: An object of the present invention is to provide an electrophotographic photosensitive body having improved electrophotographic characteristics such as sensitivity and residual potential and also having excellent durability. The present invention provides an electrophotographic photosensitive body having a layer containing at least one specific p-terphenyl compound and at least one polycarbonate resin represented by the general formula (I): in a mass ratio of the p-terphenyl compound to the polycarbonate resin within the range of 2:8 to 7:3.Type: GrantFiled: June 5, 2013Date of Patent: August 19, 2014Assignee: Hodogaya Chemical Co., Ltd.Inventors: Katsumi Abe, Atsushi Takesue, Takehiro Nakajima, Makoto Koike, Shinya Nagai
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Patent number: 8728418Abstract: An object of the present invention is to provide a method for producing a metal hydroxide fine particle, which can produce metal hydroxide fine particles with favorable crystallinity and small particle sizes. The present invention provides a method for producing a metal hydroxide fine particle by reacting a metal ion with a hydroxide ion in a solvent, which includes a mixing and reacting step of supplying the metal ion, the hydroxide ion, and a silane coupling agent to a reaction field to mix and react the ions.Type: GrantFiled: March 25, 2011Date of Patent: May 20, 2014Assignee: FUJIFILM CorporationInventors: Yoshiyuki Miyoshi, Makoto Koike, Yasunori Ichikawa
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Patent number: 8722288Abstract: [Problems] To provide a novel compound which has a high carrier mobility and is useful as a charge-transporting agent that is not only capable of stably forming a photosensitive layer without precipitating crystals or forming pinholes at the time of forming the photosensitive layer but is also capable of forming an organic photosensitive material for electrophotography that has a high sensitivity and a low residual potential. [Means for Solution] A diphenylnaphthylamine derivative represented by the following general formula (1), wherein R1 to R3 are alkyl groups, k is an integer of 0 to 3, j is an integer of 0 to 4, l is an integer of 0 to 6, and X1 and X2 are hydrocarbon groups having at least one ethylenically unsaturated bond.Type: GrantFiled: November 4, 2010Date of Patent: May 13, 2014Assignee: Hodogaya Chemical Co., Ltd.Inventors: Shigetaka Numazawa, Katsumi Abe, Makoto Koike, Kiyotaka Ihara
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Patent number: 8673792Abstract: An object of the invention is to provide a method of making a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by formula (1) and formula (2) and an asymmetric p-terphenyl compound represented by formula (3)Type: GrantFiled: June 12, 2013Date of Patent: March 18, 2014Assignee: Hodogaya Chemical Co., Ltd.Inventors: Shinya Nagai, Atsushi Takesue, Makoto Koike, Katsumi Abe, Takehiro Nakajima
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Patent number: 8674005Abstract: An object of the present invention is to provide a flame retardant resin composition including magnesium hydroxide particles and a cellulose resin and having excellent flame retardance, mechanical characteristics, and moldability. The flame retardant resin composition includes a thermoplastic resin including a cellulose resin and a flame retardant. The flame retardant includes, at 40% by weight to 60% by weight of the total flame retardant, a first type of magnesium hydroxide particles with a particle diameter of 10 nm to 50 nm, having a particulate surface modified by an epoxy silane coupling agent, and, at 60% by weight to 40% by weight of the total flame retardant, a second type of magnesium hydroxide particles with a particle diameter of 100 nm to 1,000 nm, having a particulate surface modified by an amino silane coupling agent.Type: GrantFiled: March 16, 2011Date of Patent: March 18, 2014Assignee: FUJIFILM CorporationInventors: Makoto Koike, Yasunori Ichikawa, Yoshiyuki Miyoshi
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Publication number: 20140031460Abstract: A flame retardant resin composition contains: a thermoplastic resin containing a cellulosic resin; and a flame retardant, wherein the flame retardant is composed of: first metal hydroxide particles having a particle size of 100 nm to 1000 nm and having particle surfaces modified with an epoxy silane coupling agent, at 40% by weight to 60% by weight of the whole flame retardant; and second metal hydroxide particles having a particle size of 10 nm to 50 nm and having particle surfaces modified with an amino silane coupling agent, at 60% by weight to 40% by weight of the whole flame retardant. This flame retardant resin composition containing a cellulosic resin is provided with excellent flame retardancy, mechanical properties, and moldability.Type: ApplicationFiled: September 27, 2013Publication date: January 30, 2014Applicant: FUJIFILM CORPORATIONInventors: Makoto KOIKE, Yasunori ICHIKAWA, Yoshiyuki MIYOSHI
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Publication number: 20130280652Abstract: An object of the invention is to provide a method of making a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by formula (1) and formula (2) and an asymmetric p-terphenyl compound represented by formula (3)Type: ApplicationFiled: June 12, 2013Publication date: October 24, 2013Inventors: Shinya NAGAI, Atsushi Takesue, Makoto Koike, Katsumi Abe, Takehiro Nakajima
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Patent number: 8561578Abstract: A hydrogen generator provided with a cracker which cracks a compound containing hydrogen atoms and nitrogen atoms to generate hydrogen, a compound feeder which feeds the compound to the cracker, and an oxygen feeder which feeds oxygen to the cracker. The cracker includes catalyst particles which promote the cracking of the compound and catalyst particles which promote the oxidation of the compound. The cracker is fed with the compound and oxygen, causes the compound to oxidize to generate heat of oxidation, and uses the generated heat of oxidation to crack the compound.Type: GrantFiled: December 30, 2010Date of Patent: October 22, 2013Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Miyagawa, Makoto Koike, Susumu Kojima, Tomojiro Sugimoto, Rioh Shimizu, Norihiko Nakamura
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Publication number: 20130266343Abstract: An object of the present invention is to provide an electrophotographic photosensitive body having improved electrophotographic characteristics such as sensitivity and residual potential and also having excellent durability. The present invention provides an electrophotographic photosensitive body having a layer containing at least one specific p-terphenyl compound and at least one polycarbonate resin represented by the general formula (I): in a mass ratio of the p-terphenyl compound to the polycarbonate resin within the range of 2:8 to 7:3.Type: ApplicationFiled: June 5, 2013Publication date: October 10, 2013Inventors: Katsumi Abe, Atsushi Takesue, Takehiro Nakajima, Makoto Koike, Shinya Nagai
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Publication number: 20130255651Abstract: In a spark ignition engine, a thermal insulation thin layer is formed over a wall surface, facing an inside of a combustion chamber, of a base material forming the combustion chamber, and for a thermal conductivity ? [W/(m·K)], a thermal diffusivity ? [mm2/s], and a thickness L [?m] of the thermal insulation thin layer, L?16.7×? and L?207.4×(?)0.5 are satisfied. With such a configuration, a heat loss Q_total escaping from gas in a cylinder to the wall of the combustion chamber over all strokes can be reduced, and the thermal efficiency can be improved without inducing degradation of knocking due to an increase in an amount of heating Q_intake of the gas in the cylinder during an intake stroke.Type: ApplicationFiled: March 20, 2013Publication date: October 3, 2013Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yoshihiro NOMURA, Hidemasa KOSAKA, Makoto KOIKE, Yoshifumi WAKISAKA, Yoshihiro HOTTA, Kiyomi NAKAKITA
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Publication number: 20130247543Abstract: An exhaust gas control apparatus includes a control device controlling a urea addition valve for adding urea from an upstream side of a NOx reduction catalyst. The control device obtains an ammonia adsorption amount distribution through the NOx reduction catalyst. When an ammonia adsorption amount in a predetermined part on a downstream side equals or exceeds a predetermined threshold, the control device controls the urea addition valve to stop the urea supply or reduce the amount thereof. The urea addition valve is controlled based on an adsorption amount distribution obtained from a model on which the catalyst is divided into cells such that an ammonia adsorption amount in a first cell positioned furthest upstream equals or exceeds a predetermined threshold close to a saturation adsorption amount and an ammonia adsorption amount in a second cell positioned downstream of the first cell reaches a predetermined target value smaller than the threshold.Type: ApplicationFiled: September 21, 2011Publication date: September 26, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, DENSO CORPORATIONInventors: Shinya Hirota, Shunsuke Toshioka, Akira Mikami, Koichiro Fukuda, Sakutaro Hoshi, Takashi Endo, Ryoichi Hibino, Matsuei Ueda, Akihiko Asano, Takafumi Yamauchi, Akira Shichi, Makoto Koike, Masatoshi Maruyama, Masakazu Sakata
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Patent number: 8486594Abstract: An object of the invention is to provide: a p-terphenyl compound mixture useful as a charge-transporting agent which has improved solubility in organic solvents to thereby diminish a cracking phenomenon, which poses problems concerning photoreceptor characteristics, and can realize an electrophotographic photoreceptor having high sensitivity and high durability; and an electrophotographic photoreceptor employing the compound mixture. The invention relates to: a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by the following general formula (1) and general formula (2) and an asymmetric p-terphenyl compound represented by the following general formula (3) which has both a group of substituents of the compound represented by general formula (1) and a group of substituents of the compound represented by general formula (2); and an electrophotographic photoreceptor containing the compound mixture.Type: GrantFiled: January 24, 2007Date of Patent: July 16, 2013Assignee: Hodogaya Chemical Co., Ltd.Inventors: Shinya Nagai, Atsushi Takesue, Makoto Koike, Katsumi Abe, Takehiro Nakajima
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Patent number: 8454881Abstract: To provide an eraser molding toy with which it is possible to mold an eraser having a colored pattern or design, a plurality of thermofusible eraser members 1 of differing colors are placed in succession inside a molding container 2 so as to form a required pattern or design etc., and the molding container 2 is heated in order to fuse the surfaces of the eraser members 1 together to mold an eraser P having a colored pattern or design in the mold shape of the container.Type: GrantFiled: April 9, 2012Date of Patent: June 4, 2013Assignees: Bandai Co., Ltd., Royal Industries Co., Ltd.Inventors: Namiko Ishii, Makoto Koike
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Patent number: 8454339Abstract: To provide an eraser molding toy with which it is possible to mold an eraser having a colored pattern or design, a plurality of thermofusible eraser members 1 of differing colors are placed in succession inside a molding container 2 so as to form a required pattern or design etc., and the molding container 2 is heated in order to fuse the surfaces of the eraser members 1 together to mold an eraser P having a colored pattern or design in the mold shape of the container.Type: GrantFiled: December 2, 2009Date of Patent: June 4, 2013Assignees: Bandai Co., Ltd., Royal Industries Co., Ltd.Inventors: Namiko Ishii, Makoto Koike
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Publication number: 20130071780Abstract: [Problems] To provide a novel compound useful as an electric charge transporting agent having a high carrier mobility, and making it possible not only to stably form a photosensitive layer without precipitating crystals or developing pinholes when the photosensitive layer is being formed but also to prepare an organic photosensitive material for electrophotography featuring a high sensitivity and a low residual potential. [Means for Solution] The compound is represented by the following general formula (1); In the general formula (1), R1 to R7 are, for example, alkyl groups, X1 is, for example, —CH?CH—CH?CH2, X2 is, for example, —CH?CH2, and k and l are integers of 0 to 4.Type: ApplicationFiled: June 22, 2011Publication date: March 21, 2013Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Shigetaka Numazawa, Katsumi Abe, Kiyotaka Ihara, Takehiro Nakajima, Makoto Koike
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Patent number: 8318056Abstract: An optical sheet having both a light condensing function and a light diffusing function in a single sheet is to be provided. When a transparent support (18) on which a curable resin coat layer (38) is formed is wound around a zigzag-faced roller (32) on which the reversed pattern of convex-concave patterns is formed to transfer the reversed pattern of the zigzag-faced roller (32) to the resin coat layer (38), gas is blown from a gas jet nozzle (50), immediately before winding the transparent support (18) around the zigzag-faced roller (32), into a gap between the resin coat layer (38) and the surface of the zigzag-faced roller.Type: GrantFiled: June 19, 2007Date of Patent: November 27, 2012Assignee: Fujifilm CorporationInventors: Makoto Koike, Hideo Nagano, Ryuichi Katsumoto
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Patent number: 8247144Abstract: An object of the invention is to provide a photoreceptor for electrophotography which has a low residual potential in an initial stage, is inhibited from increasing in residual potential, is prevented from decreasing in charge potential, and undergoes little fatigue deterioration even upon repeated use. The invention relates to a photoreceptor for electrophotography which has a photosensitive layer containing a cyclic phenol sulfide represented by the following general formula (1): and one or more charge-transporting agents each having an arylamino group in the molecule, and which has excellent durability.Type: GrantFiled: January 24, 2008Date of Patent: August 21, 2012Assignee: Hodogaya Chemical Co., Ltd.Inventors: Makoto Koike, Katsumi Abe, Atsushi Takesue
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Publication number: 20120208117Abstract: [Problems] To provide a novel compound which has a high carrier mobility and is useful as a charge-transporting agent that is not only capable of stably forming a photosensitive layer without precipitating crystals or forming pinholes at the time of forming the photosensitive layer but is also capable of forming an organic photosensitive material for electrophotography that has a high sensitivity and a low residual potential. [Means for Solution] A diphenylnaphthylamine derivative represented by the following general formula (1), wherein R1 to R3 are alkyl groups, k is an integer of 0 to 3, j is an integer of 0 to 4, l is an integer of 0 to 6, and X1 and X2 are hydrocarbon groups having at least one ethylenically unsaturated bond.Type: ApplicationFiled: November 4, 2010Publication date: August 16, 2012Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Shigetaka Numazawa, Katsumi Abe, Makoto Koike, Kiyotaka Ihara
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Publication number: 20120193831Abstract: To provide an eraser moulding toy with which it is possible to mould an eraser having a coloured pattern or design, a plurality of thermofusible eraser members 1 of differing colours are placed in succession inside a moulding container 2 so as to form a required pattern or design etc., and the moulding container 2 is heated in order to fuse the surfaces of the eraser members 1 together to mould an eraser P having a coloured pattern or design in the mould shape of the container.Type: ApplicationFiled: April 9, 2012Publication date: August 2, 2012Applicants: Royal Industries Co., Ltd., BANDAI CO., LTD.Inventors: Namiko Ishii, Makoto Koike
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Publication number: 20120167840Abstract: A hydrogen generator provided with a cracker which cracks a compound containing hydrogen atoms and nitrogen atoms to generate hydrogen, a compound feeder which feeds the compound to the cracker, and an oxygen feeder which feeds oxygen to the cracker. The cracker includes catalyst particles which promote the cracking of the compound and catalyst particles which promote the oxidation of the compound. The cracker is fed with the compound and oxygen, causes the compound to oxidize to generate heat of oxidation, and uses the generated heat of oxidation to crack the compound.Type: ApplicationFiled: December 30, 2010Publication date: July 5, 2012Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Hiroshi MIYAGAWA, Makoto KOIKE, Susumu KOJIMA, Tomojiro SUGIMOTO, Rioh SHIMIZU, Norihiko NAKAMURA