Patents by Inventor Yuki Tachibana

Yuki Tachibana 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: 8153793
    Abstract: The present invention provides an sulfonamide derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further a therapeutic agent for treating allergic diseases. A compound of the general formula (II): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the ring C is an aromatic carbocyclic ring etc.; R1 is carboxy etc.; R2 is independently a halogen atom etc.; R3 is optionally substituted alkyloxy etc.; R4 is independently a halogen atom etc.; R5 is independently optionally substituted alkyl etc.; M is sulfonyl etc.; Y is a single bond etc.; L1 is a single bond etc.; L2 is a single bond etc.; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; and q is 0, 1, 2 or 3; provided that a) k is not 0 when the ring B is a 6-membered nitrogen-containing heterocyclic ring containing one or two nitrogen atom(s) and the ring C is a benzene ring, etc.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: April 10, 2012
    Assignee: Shionogi & Co., Ltd.
    Inventors: Akira Kugimiya, Masahiko Fujioka, Yuki Tachibana, Takami Murashi
  • Patent number: 8143285
    Abstract: The present invention provides an indolecarboxylic acid derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further a therapeutic agent for treating allergic diseases. A compound of the general formula (I): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the formula of -X1=X2-X3=X4- is a formula of —C(R1)?C(R2)—C(R3)?C(R4)— etc.; X5 is C(R5) or N; R1, R2, R3, R4 and R5 is independently a hydrogen atom, a halogen atom etc; R6 is a formula of -Z-R10 etc. wherein Z is alkylene etc., and R10 is carboxy etc.; R7 is optionally substituted alkyloxy etc.; R8 is independently a halogen atom etc.; R9 is independently optionally substituted alkyl etc.; Y is a single bond etc.; n is 0 etc.; q is 0 etc.; a pharmaceutically acceptable salt or a solvate thereof.
    Type: Grant
    Filed: September 4, 2006
    Date of Patent: March 27, 2012
    Assignee: Shionogi & Co., Ltd.
    Inventors: Akira Kugimiya, Yuki Tachibana
  • Publication number: 20100099676
    Abstract: A compound represented by the general formula (I): wherein R1 is wherein R26 and R28 are each independently lower alkyloxy and the like; n1 is an integer of 0 to 3; Z is a optionally substituted C1-C5 alkynylene which may be interrupted with a substituent selected from Substituent group a and the like; A is a group represented by the formula: wherein R6 and R7 are each independently lower alkyl and the like; m and n are each independently 0, 1, or 2; R2 is a hydrogen atom and the like; R3 is optionally substituted lower alkyl and the like; R4 is a hydrogen atom; or R3 and R4 may be taken together with an adjacent carbon atom to from a ring; R5 is hydroxyl and the like, or an optically active isomer, a pharmaceutically acceptable salt or a solvate thereof.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 22, 2010
    Applicant: SHIONOGI & CO., LTD.
    Inventors: Takeshi Endoh, Yasuhiko Fujii, Eiichi Kojima, Genta Tadano, Naoko Yamaguchi, Yo Adachi, Sachie Tagashira, Yuki Tachibana, Naohiro Onodera
  • Publication number: 20100069638
    Abstract: The present invention provides an sulfonamide derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further a therapeutic agent for treating allergic diseases. A compound of the general formula (II): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the ring C is an aromatic carbocyclic ring etc.; R1 is carboxy etc.; R2 is independently a halogen atom etc.; R3 is optionally substituted alkyloxy etc.; R4 is independently a halogen atom etc.; R5 is independently optionally substituted alkyl etc.; M is sulfonyl etc.; Y is a single bond etc.; L1 is a single bond etc.; L2 is a single bond etc.; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; and q is 0, 1, 2 or 3; provided that a) k is not 0 when the ring B is a 6-membered nitrogen-containing heterocyclic ring containing one or two nitrogen atom(s) and the ring C is a benzene ring, etc.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Inventors: Akira Kugimiya, Masahiko Fujioka, Yuki Tachibana, Takami Murashi
  • Publication number: 20100059012
    Abstract: The present invention a cylinder liner which controls gap formation at the interface between the cylinder liner and a cylinder block main body for accepting the cylinder liner therein, and serves to acquire closely contacting state and enhanced bonding strength between the cylinder liner and the cylinder block main body, and to provide a cylinder block, and further to provide a process for the preparation of the cylinder liner. A plurality of circumferential grooves 15 extending in the circumferential direction is formed from a first circumferential groove 16 having a shape of “J” of the alphabet in sectional view and extending in a circumferential direction formed on an outer surface 12 of an cast iron cylinder liner 10, and a second circumferential groove 18 having a shape of “J” of the alphabet in sectional view and linking to the first circumferential groove 16.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 11, 2010
    Applicants: Fuji Jukogyo Kabushiki Kaisha, Koyama Co., Ltd.
    Inventors: Yuki TACHIBANA, Yoshiro SHIINA, Makoto MIYASAKA, Hiroki SHIMIZU, Daisuke SHINKAI
  • Publication number: 20090105274
    Abstract: The present invention provides an indolecarboxylic acid derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further a therapeutic agent for treating allergic diseases. A compound of the general formula (I): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the formula of -X1=X2-X3=X4- is a formula of —C(R1)?C(R2)—C(R3)?C(R4)— etc.; X5 is C(R5) or N; R1, R2, R3, R4 and R5 is independently a hydrogen atom, a halogen atom etc; R6 is a formula of -Z-R10 etc. wherein Z is alkylene etc., and R10 is carboxy etc.; R7 is optionally substituted alkyloxy etc.; R8 is independently a halogen atom etc.; R9 is independently optionally substituted alkyl etc.; Y is a single bond etc.; n is 0 etc.; q is 0 etc.; a pharmaceutically acceptable salt or a solvate thereof.
    Type: Application
    Filed: September 4, 2006
    Publication date: April 23, 2009
    Inventors: Akira Kugimiya, Yuki Tachibana
  • Patent number: 6805088
    Abstract: In the air intake system of an engine which introduces air passed through a cleaner case having filter element therein into a throttle box through a throttle, and distributes the air from the throttle box to each cylinder of the engine by an intake manifold, the throttle is provided in the throttle box such that a center axis of the throttle is provided substantially horizontally and in a center in the vertical direction between the ends on the upstream side of the intake pipes. The intake pipes are provided on both sides of the throttle box and the throttle is connected to the throttle box such that a center axis of the throttle is arranged substantially horizontal and, simultaneously, an intake route for linking the throttle (including the main port) to the filter element is substantially arranged linearly on the center axis of the throttle. Also, the inside of the cleaner case is in the form of a hollow and is divided by a partition into the air cleaner case and a blowby room.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: October 19, 2004
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Yuki Tachibana, Kensuke Kobayashi, Yuji Chiba
  • Publication number: 20030024496
    Abstract: In the air intake system of an engine which introduces air passed through a cleaner case having filter element therein into a throttle box through a throttle, and distributes the air from the throttle box to each cylinder of the engine by an intake manifold, the throttle is provided in the throttle box such that a center axis of the throttle is provided substantially horizontally and in a center in the vertical direction between the ends on the upstream side of the intake pipes provided vertically and extended to a center between the ends on the upstream side opposite to each other provided on both sides of the throttle box; the throttle is connected to the throttle box such that a center axis of the throttle is arranged substantially horizontal and simultaneously an intake route of linking the throttle including the main port to the filter element is substantially arranged linearly on the center axis of the throttle; the inside of the cleaner case in the form of hollow is divided by a partition into the air
    Type: Application
    Filed: August 6, 2002
    Publication date: February 6, 2003
    Inventors: Yuki Tachibana, Kensuke Kobayashi, Yuji Chiba