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: 20100016354Abstract: 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: ApplicationFiled: January 29, 2008Publication date: January 21, 2010Inventors: Takahiro Honda, Koushi Fujisawa, Hiroyuki Aono, Masakazu Ban
-
Publication number: 20090286786Abstract: 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: ApplicationFiled: March 10, 2009Publication date: November 19, 2009Applicant: SANTEN PHARMACEUTICAL CO., LTD.Inventors: Takahiro Honda, Hisashi Tajima, Yoshimasa Sasabuchi, Kenji Kawashima, Kazuyoshi Okamoto, Minoru Yamamoto, Masakazu Ban
-
Patent number: 7534802Abstract: 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: GrantFiled: March 5, 2004Date of Patent: May 19, 2009Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Takahiro Honda, Hisashi Tajima, Yoshimasa Sasabuchi, Kenji Kawashima, Kazuyoshi Okamoto, Minoru Yamamoto, Masakazu Ban
-
Patent number: 7491739Abstract: 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: GrantFiled: June 7, 2006Date of Patent: February 17, 2009Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
-
Publication number: 20080182881Abstract: 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: ApplicationFiled: August 15, 2007Publication date: July 31, 2008Applicant: SANTEN PHARMACEUTICAL, CO., LTD.Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
-
Patent number: 7345064Abstract: 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: GrantFiled: June 22, 2006Date of Patent: March 18, 2008Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
-
Publication number: 20080006371Abstract: 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: ApplicationFiled: July 5, 2007Publication date: January 10, 2008Applicant: TOKYO ELECTRON LIMITEDInventors: Sunao MURAOKA, Hideki NAGAOKA, Masakazu BAN, Cai TIAN
-
Publication number: 20060241155Abstract: 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: ApplicationFiled: June 22, 2006Publication date: October 26, 2006Applicant: SANTEN PHARMACEUTICAL, CO., LTD.Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
-
Publication number: 20060229342Abstract: 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: ApplicationFiled: June 7, 2006Publication date: October 12, 2006Applicant: SANTEN PHARMACEUTICAL, CO., LTD.Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
-
Patent number: 7098226Abstract: 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: GrantFiled: May 31, 2001Date of Patent: August 29, 2006Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto, Hiroyuki Inoue
-
Patent number: 6960575Abstract: 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: GrantFiled: November 13, 2003Date of Patent: November 1, 2005Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Kazuo Nishimura, Masakazu Ban, Ken-ichi Fujimura, Naoyuki Kobayashi, Masanori Hori, Takahiro Honda, Eiko Matsumoto, Junzo Matsumoto
-
Publication number: 20040097496Abstract: A compound having 3-oxo-3,4-dihydro-2H-1,4-thiazine 4-tetrahydropyrazine as a main skeleton.Type: ApplicationFiled: November 13, 2003Publication date: May 20, 2004Applicant: SANTEN PHARMACEUTICAL CO.,LTD.Inventors: Kazuo Nishimura, Masakazu Ban, Ken-Ichi Fujimura, Naoyuki Kobayashi, Masanori Hori, Takahiro Honda, Junzo Matsumoto, Eiko Matsumoto
-
Patent number: 6730784Abstract: 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: GrantFiled: May 15, 2002Date of Patent: May 4, 2004Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
-
Patent number: 6713472Abstract: 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: GrantFiled: January 18, 2002Date of Patent: March 30, 2004Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Kazuo Nishimura, Masakazu Ban, Ken-ichi Fujimura, Naoyuki Kobayashi, Masanori Hori, Eiko Matsumoto
-
Patent number: 6683200Abstract: 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: GrantFiled: October 4, 2001Date of Patent: January 27, 2004Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
-
Patent number: 6534499Abstract: 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: GrantFiled: October 4, 2001Date of Patent: March 18, 2003Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
-
Publication number: 20030032623Abstract: 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: ApplicationFiled: June 21, 2002Publication date: February 13, 2003Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto
-
Publication number: 20020198376Abstract: 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: ApplicationFiled: May 15, 2002Publication date: December 26, 2002Applicant: SANTEN PHARMACEUTICAL CO., LTD.Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
-
Patent number: 6492370Abstract: 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: GrantFiled: September 8, 2000Date of Patent: December 10, 2002Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara
-
Patent number: 6420398Abstract: 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: GrantFiled: February 1, 2001Date of Patent: July 16, 2002Assignee: Santen Pharmaceutical Co., Ltd.Inventors: Shiro Mita, Masato Horiuchi, Masakazu Ban, Hiroshi Suhara