Patents by Inventor Masakazu Ban

Masakazu Ban 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).

  • Publication number: 20100016354
    Abstract: The present invention relates to Compounds represented by the formula (I) or salts thereof. In the formula (I), the ring A represents a benzene ring, a thiophene ring, or a pyridine ring; Ra represents a hydrogen atom, a halogen atom, an alkyl group, or an alkoxy group; the ring B represents a pyridine ring, a pyrimidine ring, or a quinoline ring; the ring C represents a benzene ring; a pyridine ring, a quinoline ring, or an isoquinoline ring; X and Y, the same or different, represent an oxygen atom or a sulfur atom, with the proviso that the case X is a sulfur atom and Y is an oxygen atom be excluded; R1 represents a hydrogen atom, a halogen atom, an amino group, a cycloalkylamino group, an alkylcarbonylamino group, an alkyloxycarbonylamino group, an alkylaminocarbonyl group, or a non-aromatic heterocyclic group; and R2 and R2?, the same or different, represent a hydrogen atom, a halogen atom, an alkyl group, a halogeno-alkyl group, or a halogeno-alkoxy group.
    Type: Application
    Filed: January 29, 2008
    Publication date: January 21, 2010
    Inventors: Takahiro Honda, Koushi Fujisawa, Hiroyuki Aono, Masakazu Ban
  • Publication number: 20090286786
    Abstract: A compound having the following formula [I] or a pharmaceutically acceptable salt thereof: wherein A is benzene or an aromatic five-membered heterocycle which optionally is fused with a cycloalkane ring; B is an alkylene; R1 and R2 are hydrogen, hydroxy, alkoxy, aryloxy, alkyl, cycloalkyl, aryl, heterocycle, amino, alkylamino, arylamino or acyl, or R1 and R2 join together to form a heterocycle; X and Y are hydrogen, halogen, hydroxy, alkoxy, aryloxy, alkyl, cycloalkyl, aryl, mercapto, alkylthio, arylthio, carboxyl, an ester of carboxyl, an amide of carboxyl, cyano or nitro; p is 0, 1 or 2; and q is 0 or 1. The compound is useful for treating diseases in which angiogenesis or augmentation of vascular permeability is involved.
    Type: Application
    Filed: March 10, 2009
    Publication date: November 19, 2009
    Applicant: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Takahiro Honda, Hisashi Tajima, Yoshimasa Sasabuchi, Kenji Kawashima, Kazuyoshi Okamoto, Minoru Yamamoto, Masakazu Ban
  • Patent number: 7534802
    Abstract: A subject of the present invention is to provide a novel aromatic five- or six-memberd heterocyclic derivative having 4-pyridylalkylthio as a substituent or a salt thereof which is useful as a pharmaceutical. Compound represented by the following general formula [I] or salts thereof are useful as therapeutic agents for diseases in which angiogenesis or augmentation of vascular permeability is involved. In the formula, ring “A” is a benzene ring or an aromatic five- or six-memberd heterocycle which can be fused with a cycloalkane ring, “B” is alkylene, R1 and R2, the same or different, are H, OH, substituted or unsubstituted alkoxy and the like, X and Y, the same or different, are group(s) selected from H, halogen, OH, substituted or unsubstituted alkoxy and the like respectively, p is 0, 1 or 2, and q is 0 or 1.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: May 19, 2009
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Takahiro Honda, Hisashi Tajima, Yoshimasa Sasabuchi, Kenji Kawashima, Kazuyoshi Okamoto, Minoru Yamamoto, Masakazu Ban
  • Patent number: 7491739
    Abstract: A purpose of the present invention is to provide TNF-? production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. Novel compounds having the structure represented by the general formula [1] or salts thereof according to the present invention have excellent TNF-? production inhibitory activities, wherein “A” is —(NR4)—, —(CR5R6)— or —O—, “B” is alkylene or alkenylene, R1, R2, R4, R5 and R6 are hydrogen, alkyl, alkenyl, adamantyl or the like, R3 is aryl or an unsaturated heterocycle, and “X” is oxygen or sulfer respectively.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: February 17, 2009
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
  • Publication number: 20080182881
    Abstract: A purpose of the present invention is to provide TNF-? production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. Novel compounds having the structure represented by the general formula [1] or salts thereof according to the present invention have excellent TNF-? production inhibitory activities, wherein A is —(NR4)—, —(CR5R6)— or —O—, B is alkylene or alkenylene, R1, R2, R4, R5 and R6 are hydrogen, alkyl, alkenyl, adamantyl or the like, R3 is aryl or an unsaturated heterocycle, and X is oxygen or sulfer respectively.
    Type: Application
    Filed: August 15, 2007
    Publication date: July 31, 2008
    Applicant: SANTEN PHARMACEUTICAL, CO., LTD.
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
  • Patent number: 7345064
    Abstract: A purpose of the present invention is to provide TNF-? production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. Novel compounds having the structure represented by the general formula [1] or salts thereof according to the present invention have excellent TNF-? production inhibitory activities, wherein A is —(NR4)—, —(CR5R6)— or —O—, B is alkylene or alkenylene, R1, R2, R4, R5 and R6 are hydrogen, alkyl, alkenyl, adamantyl or the like, R3 is aryl or an unsaturated heterocycle, and X is oxygen or sulfer respectively.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: March 18, 2008
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
  • Publication number: 20080006371
    Abstract: A gate valve includes a plate-shaped valve element which is rectangular-shaped to suit the shape of an opening of a processing chamber and has a size larger than the opening. A hermetically sealing member to perform hermetic sealing by abutting on and being pressed against an outer side of the processing chamber is provided in the valve element. A microwave reflecting mechanism which is formed in a groove shape so as to surround a periphery of the hermetically sealing member is provided at an outer peripheral portion of the hermetically sealing member.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 10, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Sunao MURAOKA, Hideki NAGAOKA, Masakazu BAN, Cai TIAN
  • Publication number: 20060241155
    Abstract: A purpose of the present invention is to provide TNF-? production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. Novel compounds having the structure represented by the general formula [1] or salts thereof according to the present invention have excellent TNF-? production inhibitory activities, wherein A is —(NR4)—, —(CR5R6)— or —O—, B is alkylene or alkenylene, R1, R2, R4, R5 and R6 are hydrogen, alkyl, alkenyl, adamantyl or the like, R3 is aryl or an unsaturated heterocycle, and X is oxygen or sulfer respectively.
    Type: Application
    Filed: June 22, 2006
    Publication date: October 26, 2006
    Applicant: SANTEN PHARMACEUTICAL, CO., LTD.
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
  • Publication number: 20060229342
    Abstract: A purpose of the present invention is to provide TNF-? production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. Novel compounds having the structure represented by the general formula [1] or salts thereof according to the present invention have excellent TNF-? production inhibitory activities, wherein “A” is —(NR4)—, —(CR5R6)— or —O—, “B” is alkylene or alkenylene, R1, R2, R4, R5 and R6 are hydrogen, alkyl, alkenyl, adamantyl or the like, R3 is aryl or an unsaturated heterocycle, and “X” is oxygen or sulfer respectively.
    Type: Application
    Filed: June 7, 2006
    Publication date: October 12, 2006
    Applicant: SANTEN PHARMACEUTICAL, CO., LTD.
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
  • Patent number: 7098226
    Abstract: A purpose of the present invention is to provide TNF-? production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. Novel compounds having the structure represented by the general formula [1] or salts thereof according to the present invention have excellent TNF-? production inhibitory activities, wherein “A” is —(NR4)—, —(CR5R6)— or —O—, “B” is alkylene or alkenylene, R1, R2, R4, R5 and R6 are hydrogen, alkyl, alkenyl, adamantyl or the like, R3 is aryl or an unsaturated heterocycle, and “X” is oxygen or sulfer respectively.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 29, 2006
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
  • Patent number: 6960575
    Abstract: A compound having 3-oxo-3, 4-dihydro-2H-1, 4-thiazine 4-tetrahydropyrazine as a main skeleton. The compound is a chymase inhibitor and is represented by the following formula [I] and salts thereof: In the formula [I], X is S; R1 and R2 are H, alkyl, cycloalkyl or aryl; R3 and R4 are H, alkyl, cycloalkyl, aryl or an aromatic heterocycle; R5 is H, alkyl, cycloalkyl, aryl or -A3-A4-R7; R6 is H, alkyl, cycloalkyl, hydroxy, alkoxy, aryl, aryloxy or an aromatic heterocycle; R7 is H, alkyl, hydroxy, alkoxy, aryl, aryloxy, amino, alkylamino, arylamino, an aromatic heterocycle or a nonaromatic heterocycle; A1 is alkylene; A2 is carbonyl or sulfonyl; A3 is alkylene; A4 is carbonyl or oxalyl; and n is 0 or 1.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: November 1, 2005
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Kazuo Nishimura, Masakazu Ban, Ken-ichi Fujimura, Naoyuki Kobayashi, Masanori Hori, Takahiro Honda, Eiko Matsumoto, Junzo Matsumoto
  • Publication number: 20040097496
    Abstract: A compound having 3-oxo-3,4-dihydro-2H-1,4-thiazine 4-tetrahydropyrazine as a main skeleton.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 20, 2004
    Applicant: SANTEN PHARMACEUTICAL CO.,LTD.
    Inventors: Kazuo Nishimura, Masakazu Ban, Ken-Ichi Fujimura, Naoyuki Kobayashi, Masanori Hori, Takahiro Honda, Junzo Matsumoto, Eiko Matsumoto
  • Patent number: 6730784
    Abstract: Objects of the present invention are to create compounds having urea structure as basic structure and having a sulfur atom and an amide bond in side chains and to find pharmacological effects thereof, particularly TNF-&agr; production inhibitory effects. The present invention provides compounds represented by the following formula [I] wherein R1 is H, alkyl, aromatic, RA—CO—, RC—S— or the formula [II]; R2, R3 and R4 are H, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aromatic; R5 and R6 are H, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aromatic; R5 and R6 can together form a nonaromatic heterocyclic ring; R7 is H, alkyl, cycloalkyl, hydroxy, mercapto, phenyl, RB—O—, RC—S—, RD—COS—, RE—OCO—, RF—N(RG)— or —CONHOH; and A1 and A2 are alkylene.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: May 4, 2004
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
  • Patent number: 6713472
    Abstract: A compound which is a chymase inhibitor and which is represented by a formula [I] and salts thereof. In the formula [I], X is R6—(A2)n—N, R1 and R2 are H, alkyl, cycloalkyl or aryl, R3 and R4 are H, alkyl, cycloalkyl, aryl or aromatic heterocycle, R5 is H, alkyl, cycloalkyl, aryl or —A3—A4—R7, R6 is H, alkyl, cycloalkyl, OH, alkoxy, aryl, aryloxy or an aromatic heterocycle, R7 is H, alkyl, OH, alkoxy, aryl, aryloxy, amino, alkylamino, arylamino, an aromatic heterocycle or a nonaromatic heterocycle, A1 is alkylene, A2 is carbonyl or sulfonyl, A3 is alkylene, A4 is carbonyl or oxalyl and n is o or 1.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: March 30, 2004
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Kazuo Nishimura, Masakazu Ban, Ken-ichi Fujimura, Naoyuki Kobayashi, Masanori Hori, Eiko Matsumoto
  • Patent number: 6683200
    Abstract: N-Substituted-N′-substituted urea derivatives represented by the following formula, analogs thereof or pharmaceutically acceptable salts thereof are herein provided. These compounds show a TNF-&agr; production inhibitory activity.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: January 27, 2004
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
  • Patent number: 6534499
    Abstract: N-Substituted-N′-substituted urea derivatives represented by the following formula, analogs thereof or pharmaceutically acceptable salts thereof are herein provided. These compounds show a TNF-&agr; production inhibitory activity.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: March 18, 2003
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
  • Publication number: 20030032623
    Abstract: A purpose of the present invention is to provide TNF-&agr; production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis.
    Type: Application
    Filed: June 21, 2002
    Publication date: February 13, 2003
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto
  • Publication number: 20020198376
    Abstract: Objects of the present invention are to create compounds having urea structure as basic structure and having a sulfur atom and an amide bond in side chains and to find pharmacological effects thereof, particularly TNF-&agr; production inhibitory effects.
    Type: Application
    Filed: May 15, 2002
    Publication date: December 26, 2002
    Applicant: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
  • Patent number: 6492370
    Abstract: Objects of the present invention are to create compounds having urea structure as basic structure and having a sulfur atom and an amide bond in side chains and to find pharmacological effects thereof, particularly TNF-&agr; production inhibitory effects. The present invention provides compounds represented by the following formula [I] wherein R1 is H, alkyl, aromatic, RA—CO—, RC—S—or the formula [II]; R2, R3 and R4 are H, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aromatic; R5 and R6 are H, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aromatic; R5 and R6 can together form a nonaromatic heterocyclic ring; R7 is H, alkyl, cycloalkyl, hydroxy, mercapto, phenyl, RB—O—, RC—S—, RD—COS—, RE—OCO—, RF—N(RG)— or —CONHOH; and A1 and A2 are alkylene.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: December 10, 2002
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
  • Patent number: 6420398
    Abstract: An object of the present invention is to provide novel urea derivatives which have TNF-&agr; production inhibitory effects and are useful as therapeutic agents for various diseases, particularly as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. The urea derivatives according to the present invention are compounds represented by the formula [I] and salts thereof. In the formula, R1 is H, alkyl, phenyl or a group of the formula [`I]; R2 is H, alkyl, carboxyl or ester thereof or the like; R3 and R4 are each H, alkyl, cycloalkyl or the like; R5 is H, alkyl, hydroxy or the like; R6 is a nitrogen aromatic heterocycle; and A1 and A2 are alkylene.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: July 16, 2002
    Assignee: Santen Pharmaceutical Co., Ltd.
    Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara