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).

  • Patent number: 11860570
    Abstract: A toner set includes a plurality of toners, wherein the toner set includes a first toner containing a yellow colorant and a second toner containing a cyan colorant, the first toner and the second toner each contain a binder resin containing a vinyl-based resin and a crystalline resin, and a release agent containing a hydrocarbon wax, a content of the vinyl-based resin with respect to a total mass of the binder resin is 50% by mass or more, the first toner contains the crystalline resin having a moiety having a crystal structure and a crystal nucleating agent moiety having a crystal nucleating agent, and the second toner contains the cyan colorant that is a compound represented by general formula (1).
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: January 2, 2024
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroshi Nagasawa, Yusuke Takigaura, Takaki Kawamura, Ami Motohashi, Natsuki Ito, Shiro Hirano
  • Publication number: 20220004113
    Abstract: A toner set includes a plurality of toners, wherein the toner set includes a first toner containing a yellow colorant and a second toner containing a cyan colorant, the first toner and the second toner each contain a binder resin containing a vinyl-based resin and a crystalline resin, and a release agent containing a hydrocarbon wax, a content of the vinyl-based resin with respect to a total mass of the binder resin is 50% by mass or more, the first toner contains the crystalline resin having a moiety having a crystal structure and a crystal nucleating agent moiety having a crystal nucleating agent, and the second toner contains the cyan colorant that is a compound represented by general formula (1).
    Type: Application
    Filed: June 7, 2021
    Publication date: January 6, 2022
    Inventors: Hiroshi NAGASAWA, Yusuke TAKIGAURA, Takaki KAWAMURA, Ami MOTOHASHI, Natsuki ITO, Shiro HIRANO
  • Patent number: 10901333
    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: January 26, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kouji Sugama, Hiroshi Nagasawa, Anju Hori, Noboru Ueda
  • Publication number: 20190370454
    Abstract: In authentication of machineries and cards (artifact) that are used in social acts such as economic acts, an approach of artifact metrics corresponding to biometrics is effective. Therefore, the subject is to find out a material that satisfies requirements of artifact metrics and is, preferably, suppliable stably and also economically, to establish the production method thereof, and to apply these to an individual authentication system of artifact. Porous glass, which possesses a spinodal phase separation structure, is an individual authentication medium as artifact metrics. There is provided a production method thereof, and an individual authentication system utilizing the individual authentication medium.
    Type: Application
    Filed: October 2, 2017
    Publication date: December 5, 2019
    Inventors: Hiroshi Nagasawa, Junji Shikata, Kiminori Itoh
  • Publication number: 20190294064
    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Kouji Sugama, Hiroshi Nagasawa, Anju Hori, Noboru Ueda
  • Patent number: 10353309
    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 16, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kouji Sugama, Hiroshi Nagasawa, Anju Hori, Noboru Ueda
  • Patent number: 10308604
    Abstract: 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: Grant
    Filed: April 11, 2018
    Date of Patent: June 4, 2019
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Hiroshi Nagasawa, Noritada Sato
  • Publication number: 20190018329
    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Inventors: Kouji SUGAMA, Hiroshi Nagasawa, Anju Hori, Noboru Ueda
  • Patent number: 10133200
    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: November 20, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kouji Sugama, Hiroshi Nagasawa, Anju Hori, Noboru Ueda
  • Publication number: 20180230095
    Abstract: 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: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Hiroshi Nagasawa, Noritada Sato
  • Patent number: 10005725
    Abstract: 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: Grant
    Filed: September 8, 2017
    Date of Patent: June 26, 2018
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Hiroshi Nagasawa, Noritada Sato
  • Publication number: 20170369438
    Abstract: 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: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Hiroshi Nagasawa, Noritada Sato
  • Patent number: 9776961
    Abstract: 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: Grant
    Filed: April 28, 2017
    Date of Patent: October 3, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Noritada Sato, Takashi Takita, Gen Hasegawa
  • Patent number: 9765025
    Abstract: 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: Grant
    Filed: February 12, 2016
    Date of Patent: September 19, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Hiroshi Nagasawa, Noritada Sato
  • Publication number: 20170233341
    Abstract: 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: Application
    Filed: April 28, 2017
    Publication date: August 17, 2017
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Noritada Sato, Takashi Takita, Gen Hasegawa
  • Patent number: 9676713
    Abstract: 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: Grant
    Filed: November 15, 2016
    Date of Patent: June 13, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Noritada Sato, Takashi Takita, Gen Hasegawa
  • Patent number: 9605973
    Abstract: 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: Grant
    Filed: January 23, 2015
    Date of Patent: March 28, 2017
    Assignee: Sony Corporation
    Inventors: Naoshi Kobuya, Toru Masano, Motoya Itako, Atsushi Noda, Hiroshi Nagasawa
  • Publication number: 20170057915
    Abstract: 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: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Noritada Sato, Takashi Takita, Gen Hasegawa
  • Patent number: 9568848
    Abstract: 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: Grant
    Filed: October 14, 2015
    Date of Patent: February 14, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroshi Nagasawa, Noboru Ueda, Kouji Sugama, Anju Hori, Keisuke Asano
  • Publication number: 20160370721
    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 22, 2016
    Inventors: KOUJI SUGAMA, Hiroshi NAGASAWA, Anju HORI, Noboru UEDA