Patents by Inventor Hiroshi Nagasawa
Hiroshi Nagasawa 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: 9499483Abstract: The present invention provides a production intermediate of an atropisomer of a pyrrole derivative having excellent mineralocorticoid receptor antagonistic activity, a method for producing the same, and a crystal thereof. A method for producing an atropisomer of a pyrrole derivative including a step of resolving a compound represented by the following general formula (I) [wherein R1 represents a methyl group or a trifluoromethyl group, R2 represents a hydrogen atom or a C1-C3 alkoxy group, and n represents an integer selected from 1 to 3] into its atropisomers, characterized by using an optically active amine having a cinchonine skeletal formula, and a crystal of (S)-1-(2-hydroxyethyl)-4-methyl-N-[4-(methylsulfonyl)phenyl]-5-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxamide.Type: GrantFiled: October 9, 2015Date of Patent: November 22, 2016Assignee: Daiichi Sankyo Company, LimitedInventors: Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Noritada Sato, Takashi Takita, Gen Hasegawa
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Patent number: 9423712Abstract: Disclosed is a toner for electrostatic image development having excellent low-temperature fixability and high-temperature off-set resistance, attaining good image density, and having excellent homogeneity in image density. The toner comprises toner particles containing a binder resin which contains an amorphous resin (A) and an amorphous polyester resin (B) different from the resin (A) and a colorant, wherein the toner particles have a domain-matrix structure having the resin (B) as a domain phase dispersed in a matrix phase comprising the resin (A), and in a cross-sectional image of the toner particles, the number average domain diameter of the domain phase of the resin (B) having a domain diameter of 100 nm or more is 100 to 200 nm and an area ratio of the domain phase having a domain diameter of 500 nm or more relative to the total area of the domain phase is 0 to 10%.Type: GrantFiled: February 6, 2015Date of Patent: August 23, 2016Assignee: KONICA MINOLTA, INC.Inventors: Kouji Sugama, Hiroshi Nagasawa, Anju Hori, Junya Onishi, Noboru Ueda
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Publication number: 20160237034Abstract: The present invention provides a method for producing an atropisomer of a pyrrole derivative having excellent mineralocorticoid receptor antagonistic activity, and an intermediate thereof. A method for producing an atropisomer of a pyrrole derivative using a compound represented by (B) [wherein R1 represents a C1-C4 alkyl group, and R2 represents a 2-hydroxyethyl group or a carboxymethyl group] as a production intermediate.Type: ApplicationFiled: February 12, 2016Publication date: August 18, 2016Applicant: Daiichi Sankyo Company, LimitedInventors: Masashi Watanabe, Hiroshi Nagasawa, Noritada Sato
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Publication number: 20160109819Abstract: An electrostatic image developing toner includes toner particles that contain a binder resin and a coloring agent. The binder resin includes an amorphous resin and a crystalline polyester resin. The toner satisfies Relations (1) and (2). ?H1 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a first heating step from room temperature to 150° C. ?H2 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a second heating step from 0° C. to 150° C. ?H(theo.) is a value of fusion enthalpy calculated from a mass ratio of a structural unit derived from a linear aliphatic monomer contained in the binder resin based on a group contribution method. 0.2??H1/?H(theo.)?0.5??Relation (1): 0.1??H2/?H(theo.)?0.Type: ApplicationFiled: October 14, 2015Publication date: April 21, 2016Inventors: Hiroshi NAGASAWA, Noboru UEDA, Kouji SUGAMA, Anju HORI, Keisuke ASANO
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Publication number: 20160096803Abstract: The present invention provides a production intermediate of an atropisomer of a pyrrole derivative having excellent mineralocorticoid receptor antagonistic activity, a method for producing the same, and a crystal thereof. A method for producing an atropisomer of a pyrrole derivative including a step of resolving a compound represented by the following general formula (I) [wherein R1 represents a methyl group or a trifluoromethyl group, R2 represents a hydrogen atom or a C1-C3 alkoxy group, and n represents an integer selected from 1 to 3] into its atropisomers, characterized by using an optically active amine having a cinchonine skeletal formula, and a crystal of (S)-1-(2-hydroxyethyl)-4-methyl-N-[4-(methylsulfonyl)phenyl]-5-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxamide.Type: ApplicationFiled: October 9, 2015Publication date: April 7, 2016Applicant: Daiichi Sankyo Company, LimitedInventors: Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Noritada Sato, Takashi Takita, Gen Hasegawa
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Patent number: 9256146Abstract: Provided is a toner for electrostatic image development, having low-temperature fixability and long-term stable charge property and also having heat-resistant storage stability. The toner for electrostatic image development includes toner particles containing a binder resin. The binder resin has a domain-matrix structure in which a crystalline polyester resin is dispersed as a domain phase in a matrix phase formed of an amorphous vinyl polymer formed using at least a vinyl-based monomer. The amorphous vinyl polymer has a carboxy group concentration of not less than 0.2 mmol/g and not more than 1.0 mmol/g, and the crystalline polyester resin has an ester group concentration of not less than 0.1 mmol/g and not more than 7.1 mmol/g.Type: GrantFiled: March 17, 2014Date of Patent: February 9, 2016Assignee: KONICA MINOLTA, INC.Inventors: Takaki Kawamura, Hiroshi Nagasawa, Kaori Matsushima, Masahiro Matsuoka, Aya Shirai, Taiki Amemiya
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Patent number: 9217942Abstract: Disclosed is a toner for electrostatic image development that has excellent low-temperature fixability and also has sufficient heat-resistant storage stability. The toner for electrostatic image development includes toner particles containing an amorphous resin including amorphous resins A and B and a crystalline polyester resin. The toner particles have a domain-matrix structure in which a domain phase including fine core particles of the crystalline polyester resin is dispersed in a matrix phase formed of the amorphous resin A composed of a vinyl-based polymer. The surface of the fine core particles of the crystalline polyester resin is coated with the amorphous resin B composed of a vinyl-based polymer.Type: GrantFiled: May 21, 2014Date of Patent: December 22, 2015Assignee: KONICA MINOLTA, INC.Inventors: Aya Shirai, Hiroshi Nagasawa, Kaori Matsushima, Masahiro Matsuoka, Takaki Kawamura, Taiki Amemiya
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Patent number: 9188892Abstract: Disclosed is an electrostatic latent image developing toner which contains a toner host particle having a domain-matrix structure. The matrix contains an amorphous resin which contains a vinyl resin having an acid group, the domain contains a crystalline resin which is formed by combining a vinyl polymerized segment and a polyester polymerized segment. A content of the crystalline resin falls within a range from 3 to 30% by mass.Type: GrantFiled: June 2, 2014Date of Patent: November 17, 2015Assignee: KONICA MINOLTA, INC.Inventors: Koji Shibata, Kouji Sugama, Hiroshi Nagasawa, Takaki Kawamura, Okushi Okuyama
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Publication number: 20150227069Abstract: Disclosed is a toner for electrostatic image development having excellent low-temperature fixability and high-temperature off-set resistance, attaining good image density, and having excellent homogeneity in image density. The toner comprises toner particles containing a binder resin which contains an amorphous resin (A) and an amorphous polyester resin (B) different from the resin (A) and a colorant, wherein the toner particles have a domain-matrix structure having the resin (B) as a domain phase dispersed in a matrix phase comprising the resin (A), and in a cross-sectional image of the toner particles, the number average domain diameter of the domain phase of the resin (B) having a domain diameter of 100 nm or more is 100 to 200 nm and an area ratio of the domain phase having a domain diameter of 500 nm or more relative to the total area of the domain phase is 0 to 10%.Type: ApplicationFiled: February 6, 2015Publication date: August 13, 2015Inventors: Kouji SUGAMA, Hiroshi NAGASAWA, Anju HORI, Junya ONISHI, Noboru UEDA
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Publication number: 20150137396Abstract: The present invention provides a humidifying unit, a humidification method, and a humidification system, whereby the efficiency of diffusing water vapor into the air, the absorption amount (absolute humidity), and the water supply utilization can be enhanced.Type: ApplicationFiled: May 30, 2013Publication date: May 21, 2015Applicant: SINNIHON BIFUU CO., LTD.Inventors: Dai Aramaki, Yoshinobu Murakami, Shinsuke Ohara, Hiroshi Nagasawa
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Publication number: 20150134247Abstract: Tour guide contents stored in a tour guide apparatus carried by a user at a tour destination are provided with points of interest information and map data. This information includes latitude and longitude information for the site of each point of interest, and information on the providers of the information and the categories of information. The latitude and longitude information is provided for each site in relation to map data. By matching these pieces of latitude and longitude information to the map data, points of interest information can be laid out on the map and displayed. This makes it possible to select interesting site information to be displayed on the map based on the information provider, for example, points of interest information provided by provider A for restaurants and another set of information provided by provider B for hotels.Type: ApplicationFiled: January 23, 2015Publication date: May 14, 2015Applicant: SONY CORPORATIONInventors: Naoshi Kobuya, Toru Masano, Motoya Itako, Atsushi Noda, Hiroshi Nagasawa
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Patent number: 9017911Abstract: In the present invention, provided is an electrophotographic toner in which low temperature fixing is achieved, and high storage stability is obtained without generating tacking with respect to fixed images to be formed. It is a feature that this electrophotographic toner possesses at least a binder resin, a colorant and a releasing agent, wherein the releasing agent comprises an ester compound and an aliphatic hydroxycarboxylic acid compound.Type: GrantFiled: June 26, 2009Date of Patent: April 28, 2015Assignee: Konica Minolta Business Technologies, Inc.Inventors: Mikio Kouyama, Yasuhiko Muramatsu, Kenji Hayashi, Hiroaki Obata, Noriyuki Kimpara, Hiroshi Nagasawa
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Patent number: 8972186Abstract: Tour guide contents stored in a tour guide apparatus carried by a user at a tour destination are provided with points of interest information and map data. This information includes latitude and longitude information for the site of each point of interest, and information on the providers of the information and the categories of information. The latitude and longitude information is provided for each site in relation to map data. By matching these pieces of latitude and longitude information to the map data, points of interest information can be laid out on the map and displayed. This makes it possible to select interesting site information to be displayed on the map based on the information provider, for example, points of interest information provided by provider A for restaurants and another set of information provided by provider B for hotels.Type: GrantFiled: January 23, 2013Date of Patent: March 3, 2015Assignee: Sony CorporationInventors: Naoshi Kobuya, Toru Masano, Motoya Itako, Atsushi Noda, Hiroshi Nagasawa
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Patent number: 8916323Abstract: The toner can obtain low-temperature fixing property, heat-resistant storability and long-term stability of charging while having excellent low-temperature fixing property. The toner is formed with toner particles containing a binder resin and a crystalline ester compound, the crystalline ester compound has a linear-chain structure, and the binder resin contains a styrene-acrylic resin including a structural unit derived from an acrylic ester monomer represented by general formula (1) below. In the general formula (1), R1 represents a hydrogen atom or a methyl group, and R2 represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms or an aryl group having 6 to 15 carbon atoms. m represents 2 or 3, and n represents an integer of 1 to 25.Type: GrantFiled: April 22, 2013Date of Patent: December 23, 2014Assignee: Konica Minolta, Inc.Inventors: Kouji Sugama, Hiroshi Nagasawa, Hiroyuki Konno, Takako Kawamura
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Publication number: 20140363763Abstract: Disclosed is an electrostatic latent image developing toner which contains a toner host particle having a domain-matrix structure. The matrix contains an amorphous resin which contains a vinyl resin having an acid group, the domain contains a crystalline resin which is formed by combining a vinyl polymerized segment and a polyester polymerized segment. A content of the crystalline resin falls within a range from 3 to 30% by mass.Type: ApplicationFiled: June 2, 2014Publication date: December 11, 2014Applicant: Konica Minolta, Inc.Inventors: Koji SHIBATA, Kouji SUGAMA, Hiroshi NAGASAWA, Takaki KAWAMURA, Okushi OKUYAMA
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Publication number: 20140349231Abstract: Disclosed is a toner for electrostatic image development that has excellent low-temperature fixability and also has sufficient heat-resistant storage stability. The toner for electrostatic image development includes toner particles containing an amorphous resin including amorphous resins A and B and a crystalline polyester resin. The toner particles have a domain-matrix structure in which a domain phase including fine core particles of the crystalline polyester resin is dispersed in a matrix phase formed of the amorphous resin A composed of a vinyl-based polymer. The surface of the fine core particles of the crystalline polyester resin is coated with the amorphous resin B composed of a vinyl-based polymer.Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Applicant: Konica Minolta, Inc.Inventors: Aya SHIRAI, Hiroshi Nagasawa, Kaori Matsushima, Masahiro Matsuoka, Takaki Kawamura, Taiki Amemiya
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Patent number: 8871415Abstract: There is provided a toner for electrostatic-image development that can obtain heat-resistant storability, fixed image strength and long-term stability of charging while having excellent low-temperature fixing property. The toner is formed, with toner particles containing a binder resin and a crystalline ester compound, and the binder resin contains a styrene-acrylic resin including a structural unit derived from an acrylic ester monomer.Type: GrantFiled: April 17, 2013Date of Patent: October 28, 2014Assignee: Konica Minolta, Inc.Inventors: Hiroshi Nagasawa, Kouji Sugama, Hiroyuki Konno, Takaki Kawamura
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Patent number: 8859178Abstract: A toner for electrostatic image development includes toner particles containing a releasing agent and a binder resin, the binder resin containing a copolymer including a structural unit derived from a monomer represented by the general, formula (1), in which R1 represents a hydrogen atom or a methyl group, and R2 represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 15 carbon atoms, m is an integer of 2 or 3, and n is an integer of 1 to 8.Type: GrantFiled: February 12, 2013Date of Patent: October 14, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventors: Takaki Kawamura, Kouji Sugama, Hiroyuki Konno, Hiroshi Nagasawa
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Publication number: 20140287354Abstract: Provided is a toner for electrostatic image development, having low-temperature fixability and long-term stable charge property and also having heat-resistant storage stability. The toner for electrostatic image development includes toner particles containing a binder resin. The binder resin has a domain-matrix structure in which a crystalline polyester resin is dispersed as a domain phase in a matrix phase formed of an amorphous vinyl polymer formed using at least a vinyl-based monomer. The amorphous vinyl polymer has a carboxy group concentration of not less than 0.2 mmol/g and not more than 1.0 mmol/g, and the crystalline polyester resin has an ester group concentration of not less than 0.1 mmol/g and not more than 7.1 mmol/g.Type: ApplicationFiled: March 17, 2014Publication date: September 25, 2014Applicant: Konica Minolta, Inc.Inventors: Takaki KAWAMURA, Hiroshi NAGASAWA, Kaori MATSUSHIMA, Masahiro MATSUOKA, Aya SHIRAI, Taiki AMEMIYA
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Patent number: 8771915Abstract: An image forming method is disclosed, comprising transferring and fixing steps, wherein fixing is performed by a fixing device in which at least one of a heating member and a pressing member comprises an endless belt entrained about plural rollers, and the heating member and the pressing member are pressed against each other to form a fixing nip, and wherein toner particles contains a binder resin which has a domain/matrix structure constituted of a high-elastic resin forming a domain and a low-elastic resin forming a matrix in an elastic image obtained when observing the toner particles by an atomic force microscope with respect to a section of the individual toner particles, in which an arithmetic average value of a ratio (L/W) of a major axis (L) to a minor axis (W) of individual domains is 1.5 to 5.Type: GrantFiled: April 7, 2011Date of Patent: July 8, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventors: Noboru Ueda, Hiroshi Nagasawa, Anju Hori