Patents by Inventor Haruhiko Sato

Haruhiko Sato 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: 8470829
    Abstract: An imidazole derivative represented by formula (I): wherein Q is: A is hydrogen, halogen, or a substituted or unsubstituted C1-4 alkyl group; E is independently selected from a C1-6 alkyl group; R2 and R3 are independently selected from C1-6 alkyls; X1 and X2 are independently selected from O and S; Y is selected from a substituted or unsubstituted arylene group and a substituted or unsubstituted divalent 5- or 6-membered monocyclic or 8- to 10-membered condensed heterocyclic group; Z is —CON(—Ra)—, —CO—, —OOO—, —NRa—C(?NH)NRb—, —NRa—C(?N—CN)NRb—, —N(—Ra)COO—, —C(?NH)—, —SO2—, —SO2N(—Ra)—, —SO2NR1—, —N(—Ra)CO—, —N(—Ra)CON(—Rb)—, —N(COR1)CO—, —N(—Ra)SO2—, —N(SO2R1)SO2—, —N(—Ra)— or —N(—Ra)SO2N(—Rb)—; R1 is independently a hydrogen atom, a hydroxyl group, or substituted or unsubstituted group selected from C1-6 alkyl group, heterocyclic group, aryl group, C3-8 cycloalkyl group and C3-8 cycloalkenyl group; or salt or prodrug thereof.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: June 25, 2013
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kazutaka Tachibana, Haruhiko Sato, Masateru Ohta, Mitsuaki Nakamura, Takuya Shiraishi, Hitoshi Yoshino, Takashi Emura, Akie Honma, Etsuro Onuma, Hiromitsu Kawata, Kenji Taniguchi
  • Patent number: 8088916
    Abstract: An object of the present invention is to provide a hyaluronic acid-methotrexate conjugate useful as a therapeutic drug for joint diseases. There is provided a hyaluronic acid-methotrexate conjugate useful as a therapeutic drug for joint diseases, wherein methotrexate is conjugated with a carboxyl group of hyaluronic acid through a linker containing a peptide chain consisting of 1 to 8 amino acids.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: January 3, 2012
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hitoshi Ikeya, Tadashi Morikawa, Koichi Takahashi, Tatsuya Tamura, Akira Okamachi, Takenori Ishizawa, Haruhiko Sato, Yoshinobu Higuchi
  • Publication number: 20110306615
    Abstract: According to the present invention, a compound represented by formula (I): wherein Q is: A is a hydrogen atom, a halogen atom, —ORa or a C1-4 alkyl group which may be substituted by one or more halogen atoms; E is independently selected from a C1-6 alkyl group; m is selected from integers from 0 to 3; R2 and R3 are independently selected from a C1-6 alkyl group; X1 and X2 are independently selected from O and S; Y is selected from an arylene group and a divalent 5- or 6-membered monocyclic or 8- to 10-membered condensed heterocyclic group, wherein the arylene group and the heterocyclic group may be substituted by 1 to 3 substituents independently selected from E1; E1 is independently selected from a hydroxyl group, a halogen atom, a C1-4 alkyl group, a cyano group, a C1-4 alkoky group, a carbamoyl group, a C1-4 alkylcarbamoyl group, a di(C1-4 alkyl)carbamoyl group, an amino group, a C1-4 alkylamino group, a di(C1-4 alkylamino group, a sulfamoyl group, a C1-4 alkylsulfamoyl group and a di(C1-4 alkyl)su
    Type: Application
    Filed: September 9, 2005
    Publication date: December 15, 2011
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Kazutaka Tachibana, Haruhiko Sato, Masateru Ohta, Mitsuaki Nakamura, Takuya Shiraishi, Hitoshi Yoshino, Takashi Emura, Akie Honma, Etsuro Onuma, Hiromitsu Kawata, Kenji Taniguchi
  • Patent number: 7879887
    Abstract: The present invention provides novel ?-amino acid derivatives of formula (1): (wherein, R1, R2, R3, R4, X and Y are as defined in the claims) or pharmaceutically acceptable salts, prodrugs or solvates thereof. The derivatives of formula (1) have ?ARK1 inhibitory activity and are useful for preventing or treating heart failure. Moreover, the derivatives of formula (1) also have antitumor activity, particularly dual inhibitory activity on Aurora kinase and CDK, and are useful for cell proliferative diseases such as cancer.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: February 1, 2011
    Assignees: Nissan Chemical Industries, Ltd., Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kazuhiko Ohrai, Michiaki Adachi, Koji Toyama, Takanori Shimizu, Keishi Hayashi, Masataka Minami, Yoshiyuki Suzuki, Masakazu Sugiyama, Masateru Ohta, Shojiro Kadono, Takuya Shiraishi, Haruhiko Sato, Yoshiaki Watanabe, Nobuya Ishii, Masahiro Sakaitani, Masami Hasegawa
  • Patent number: 7807675
    Abstract: An object of the present invention is to provide a hyaluronic acid-methotrexate conjugate useful as a therapeutic drug for joint disorders. There is provided a hyaluronic acid-methotrexate conjugate useful for the treatment of joint disorders, wherein methotrexate is conjugated with a hydroxy group of hyaluronic acid through a linker containing a peptide chain consisting of 1 to 8 amino acids, and the linker is conjugated with the hyaluronic acid through a carbamate group.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: October 5, 2010
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hitoshi Ikeya, Tadashi Morikawa, Koichi Takahashi, Noriyuki Izutani, Tatsuya Tamura, Akira Okamachi, Takenori Ishizawa, Haruhiko Sato, Yoshinobu Higuchi, Tatsuya Kato, Akie Honma
  • Patent number: 7803826
    Abstract: The present invention provides a compound represented by formula (I): wherein n is an integer selected from 1 to 20, Q is A is cyano or the like; B is hydrogen, halogen, or the like; X1 and X2 are each independently selected from O and S; E is a C1-4 alkyl group; and R1, R2, R3 and R4 are each independently selected from a hydrogen atom and a C1-C6 alkyl group, and a drug, a pharmaceutical composition containing the compound, and the like.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: September 28, 2010
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kazutaka Tachibana, Haruhiko Sato, Masateru Ohta, Mitsuaki Nakamura, Takuya Shiraishi, Ikuhiro Imaoka, Hitoshi Yoshino, Masahiro Nagamuta, Hiromitsu Kawata
  • Publication number: 20090275623
    Abstract: The present invention provides novel ?-amino acid derivatives of formula (1): (wherein, R1, R2, R3, R4, X and Y are as defined in the claims) or pharmaceutically acceptable salts, prodrugs or solvates thereof. The derivatives of formula (1) have ?ARK1 inhibitory activity and are useful for preventing or treating heart failure. Moreover, the derivatives of formula (1) also have antitumor activity, particularly dual inhibitory activity on Aurora kinase and CDK, and are useful for cell proliferative diseases such as cancer.
    Type: Application
    Filed: June 29, 2007
    Publication date: November 5, 2009
    Inventors: Kazuhiko Ohrai, Michiaki Adachi, Koji Toyama, Takanori Shimizu, Keishi Hayashi, Masataka Minami, Yoshiyuki Suzuki, Masakazu Sugiyama, Masateru Ohta, Shojiro Kadono, Takuya Shiraishi, Haruhiko Sato, Yoshiaki Watanabe, Nobuya Ishii, Masahiro Sakaitani, Masami Hasegawa
  • Publication number: 20090093414
    Abstract: An object of the present invention is to provide a hyaluronic acid-methotrexate conjugate useful as a therapeutic drug for joint disorders. There is provided a hyaluronic acid-methotrexate conjugate useful for the treatment of joint disorders, wherein methotrexate is conjugated with a hydroxy group of hyaluronic acid through a linker containing a peptide chain consisting of 1 to 8 amino acids, and the linker is conjugated with the hyaluronic acid through a carbamate group.
    Type: Application
    Filed: April 1, 2005
    Publication date: April 9, 2009
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hitoshi Ikeya, Tadashi Morikawa, Koichi Takahashi, Noriyuki Izutani, Tatsuya Tamura, Akira Okamachi, Takenori Ishizawa, Haruhiko Sato, Yoshinobu Higuchi, Tatsuya Kato, Akie Honma
  • Publication number: 20070249697
    Abstract: The present invention provides a compound represented by formula (I): wherein n is an integer selected from 1 to 20, Q is A is cyano or the like; B is hydrogen, halogen, or the like; X1 and X2 are each independently selected from O and S; E is a C1-4 alkyl group; and R1, R2, R3 and R4 are each independently selected from a hydrogen atom and a C1-C6 alkyl group, and a drug, a pharmaceutical composition containing the compound, and the like.
    Type: Application
    Filed: August 3, 2005
    Publication date: October 25, 2007
    Inventors: Kazutaka Tachibana, Haruhiko Sato, Masateru Ohta, Mitsuaki Nakamura, Takuya Shiraishi, Ikuhiro Imaoka, Hitoshi Yoshino, Masahiro Nagamuta, Hiromitsu Kawata
  • Patent number: 7271188
    Abstract: The present invention provides a compound represented by formula (I): [Formula 1] wherein n is an integer selected from 1 to 20, and R1 and R2, which may be the same or different, each represent a hydrogen atom, or a linear or branched C1-C6 alkyl group, or a salt, a prodrug or a solvate thereof, as well as a drug, a pharmaceutical composition containing the compound, and the like.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: September 18, 2007
    Assignee: Chugai Seikayu Kabushiki Kaisha
    Inventors: Kazutaka Tachibana, Haruhiko Sato, Masateru Ohta, Mitsuaki Nakamura, Takuya Shiraishi, Ikuhiro Imaoka, Hitoshi Yoshino, Masahiro Nagamuta, Hiromitsu Kawata
  • Publication number: 20070197465
    Abstract: An object of the present invention is to provide a hyaluronic acid-methotrexate conjugate useful as a therapeutic drug for joint diseases. There is provided a hyaluronic acid-methotrexate conjugate useful as a therapeutic drug for joint diseases, wherein methotrexate is conjugated with a carboxyl group of hyaluronic acid through a linker containing a peptide chain consisting of 1 to 8 amino acids.
    Type: Application
    Filed: March 4, 2005
    Publication date: August 23, 2007
    Applicants: Denki Kagaku Kabushiki Kaisha, Chugai Seiyaku Kabushiki Kaisha
    Inventors: Hitoshi Ikeya, Tadashi Morikawa, Koichi Takahashi, Tatsuya Tamura, Akira Okamachi, Takenori Ishizawa, Haruhiko Sato, Yoshinobu Higuchi
  • Patent number: 7223942
    Abstract: A ceramic heater which includes: a cylindrical substrate including an insulator; a resistor provided in one end side of the substrate; a pair of lead parts provided in the substrate, connected to the resistor and extending to an opposite end side of the substrate; and a pair of electrode parts exposed to a surface at an opposite end side of the substrate and connected respectively to the lead parts. Both lead parts are made of the same material as both electrode parts. An axial cross-sectional area of the electrode part is equal to or larger than a cross-sectional area of the lead part in a direction perpendicular to an axis of the ceramic heater.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 29, 2007
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Masahiro Konishi, Haruhiko Sato, Tetsuya Suzuki, Takahiro Matsui
  • Publication number: 20060135583
    Abstract: The present invention provides a compound represented by formula (I): wherein n is an integer selected from 1 to 20, and R1 and R2, which may be the same or different, each represent a hydrogen atom, or a linear or branched C1-C6 alkyl group, or a salt, a prodrug or a solvate thereof, as well as a drug, a pharmaceutical composition containing the compound, and the like.
    Type: Application
    Filed: June 11, 2004
    Publication date: June 22, 2006
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kazutaka Tachibana, Haruhiko Sato, Masateru Ohta, Mitsuaki Nakamura, Takuya Shiraishi, Ikuhiro Imaoka, Hitoshi Yoshino, Masahiro Nagamuta, Hiromitsu Kawata
  • Patent number: 7001887
    Abstract: A compound of Formula (1): ? wherein R1 represents an amidinophenyl group, etc.; R2 represents a hydrogen atom, etc.; R3 represents a carbamoylalkyl group, etc.; R4 represents a hydrogen atom, etc.; R5 represents a benzyl group, etc.; R6 represents a hydrogen atom, etc.; and R7 represents an alkylsulfonyl group, etc. A crystal of a complex between factor VIIa/human soluble tissue factor and a low-molecular weight reversible factor VIIa inhibitor. A medium carrying a part or all of structure coordinate data of a complex between human factor VIIa/human soluble tissue factor and a low-molecular weight reversible factor VIIa inhibitor, obtainable by X-ray crystal structure analysis of the crystal. A method for computationally designing a low-molecular weight reversible factor VIIa inhibitor using the coordinate data.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: February 21, 2006
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Takuya Shiraishi, Shojiro Kadono, Masayuki Haramura, Haruhiko Sato, Toshiro Kozono, Takaki Koga, Akihisa Sakamoto
  • Publication number: 20060011602
    Abstract: A ceramic heater which includes: a cylindrical substrate including an insulator; a resistor provided in one end side of the substrate; a pair of lead parts provided in the substrate, connected to the resistor and extending to an opposite end side of the substrate; and a pair of electrode parts exposed to a surface at an opposite end side of the substrate and connected respectively to the lead parts. Both lead parts are made of the same material as both electrode parts. An axial cross-sectional area of the electrode part is equal to or larger than a cross-sectional area of the lead part in a direction perpendicular to an axis of the ceramic heater.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 19, 2006
    Inventors: Masahiro Konishi, Haruhiko Sato, Tetsuya Suzuki, Takahiro Matsui
  • Patent number: 6780020
    Abstract: An instrument panel of a vehicle is attached on a reinforce which is fixed on a part of a vehicle body. A first connector is provided on at least one of both longitudinal end portions of the reinforce. The first connector is electrically connected to electric equipments provided with the instrument panel. A second connector is provided on the vehicle body such that electric connection is effected with the first connectors when the reinforce is fixed on the vehicle body.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: August 24, 2004
    Assignee: Yazaki Corporation
    Inventors: Masayuki Kondo, Haruhiko Sato
  • Publication number: 20040087511
    Abstract: A compound of Formula (1): 1
    Type: Application
    Filed: August 1, 2003
    Publication date: May 6, 2004
    Inventors: Takuya Shiraishi, Shojiro Kadono, Masayuki Haramura, Haruhiko Sato, Toshiro Kozono, Takaki Koga, Akihisa Sakamoto
  • Patent number: 6727473
    Abstract: A ceramic heater 2 is arranged in a metallic cylinder member 3 by forming a convergent taper portion 2t at the leading end 2a of the ceramic heater 2 and by positioning the leading end 3a of the metallic cylinder member 3 on the leading end side of a taper starting point P1 of the taper portion 2t. Solder is applied in the clearance between the inner circumference 3d of the metallic cylinder member 3 and the outer circumference 2b of the heater 2. An applied solder layer 10 is also formed on the leading end side of the taper starting point P1 of the taper portion 2t. The thick solder layer 10 present on the leading end side prevents a cut or broken off portion of the ceramic heater from separating or sliding out.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 27, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Masato Taniguchi, Haruhiko Sato, Katsuhisa Yabuta
  • Patent number: 6720530
    Abstract: A ceramic heater 1 includes a rodlike heater body 2 configured such that a ceramic resistor 10 is embedded in a ceramic substrate 13. The ceramic resistor 10 includes a front end part 11a and two large-diameter rodlike portions Ld. The large-diameter rodlike portions Ld form passages for supplying electricity to the front end part 11a, extend rearward along a direction of an axis O of the heater body 2, and have an electricity-supply sectional area greater than that of the front end part 11a. The large-diameter rodlike portions Ld each have a connection end part connected to the front end part 11a. The connection end part is formed of a first electrically conductive ceramic and constitutes a first resistor portion 11. The remaining portion of each of the large-diameter rodlike portions Ld is formed of a second electrically conductive ceramic having an electrical resistivity lower than that of the first electrically conductive ceramic and constitutes a second resistor portion 12.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: April 13, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Masato Taniguchi, Haruhiko Sato, Nobuyuki Hotta
  • Patent number: 6702356
    Abstract: An electrical equipment (component) for a vehicle is separated into an exterior appearance member and an interior control member including a drive circuit for the electrical equipment (component). The exterior appearance member is provided on a dash panel. The interior control member is provided on a reinforcement. The dash panel and the reinforcement are then integrated.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: March 9, 2004
    Assignee: Yazaki Corporation
    Inventors: Masayuki Kondo, Haruhiko Sato