Patents by Inventor Hitoshi Hamashima
Hitoshi Hamashima 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).
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Patent number: 7060721Abstract: Imidazole compounds represented by general formula (I): wherein each symbol is as defined in the specification, and salts thereof, and a pharmaceutical composition containing same are provided. These compounds are useful in treating the diseases curable based on a hypoglycemic action, and the diseases curable based on a cGMP-PDE inhibitory action, a smooth muscle relaxing action, a bronchodilating action, a vasodilating action, a smooth muscle cell inhibitory action and an allergy inhibitory action.Type: GrantFiled: December 20, 1999Date of Patent: June 13, 2006Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Noriko Oku, legal representative, Chikako Oku, legal representative, Tomohito Oku, legal representative, Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Naoki Ishibashi, Hiroyuki Setoi, Noritsugu Yamasaki, Takafumi Imoto, Takahiro Hiramura, Teruo Oku, deceased
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Patent number: 6911469Abstract: A sulfonamide compound of the formula (I): R1—SO2NHCO—A—X—R2??(I) wherein R1 is alky, alkenyl, alkynyl and the like; A is an optionally substitutedheteropolycyclic group except benzimidazolyl, indolyl, 4,7-dihydrobenzimidazolyland 2,3-dihydrobenzoxazinyl; X is alkylene, oxa, oxa(lower)alkylene and the like; and R2 is optionally substituted aryl, substituted biphenylyl and the like, a salt thereof and a pharmaceutical composition comprising the same. The sulfonamide compound is effective for the diseases treatable based on their blood sugar level-depressing activity, cGMP-PDE (especially PDE-V)-inhibiting activity, smooth muscle relaxing activity, bronchodilating activity, vasodilating activity, smooth muscle cell suppressing activity, and antiallergic activity.Type: GrantFiled: January 17, 2002Date of Patent: June 28, 2005Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Tsuyoshi Mizutani, Teruo Oku, Noritsugu Yamasaki, Osamu Onomura, Masahiro Nishikawa, Takahiro Hiramura, Takafumi Imoto
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Patent number: 6890934Abstract: The present invention relates to a sulfonamide compound of the formula (I): wherein each symbol is as defined in the specification, a salt thereof, and a pharmaceutical composition containing same. This compound can be an effective agent for the prophylaxis and treatment of the diseases curable based on a hypoglycemic action, and the diseases curable based on a cGMP-PDE inhibitory action, a smooth muscle relaxing action, a bronchodilating action, a vasodilating action, a smooth muscle cell inhibitory action and an allergy suppressing action.Type: GrantFiled: February 10, 2003Date of Patent: May 10, 2005Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Noriko Oku, Chikaka Oku, Tomohiro Oku, Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Naoki Ishibashi, Hiroyuki Setoi, Noritsugu Yamasaki, Takafumi Imoto, Takahiro Hiramura, Teruo Oku
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Patent number: 6826033Abstract: The present invention relates to a compound formula (I) wherein X1 is bond or —O—CH2—, (II) or (III) R1 is hydrogen or an amino protective group, a is phenyl, indolyl or carbazolyl, each of which may be substituted with one or two substituent(s), and B is hydrogen; halogen; lower alkyl; lower alkoxycarbonyl; cyclo(lower)alkyl; or a heterocyclic group, naphthyl, 1,2,3,4-tetrahydronaphthyl, benzyl or phenyl, each of which may be substituted with one or two substituent(s), or a salt thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof are useful for the prophylactic and/or the therapeutic treatment of pollakiures or urinary incontinence.Type: GrantFiled: March 21, 2003Date of Patent: November 30, 2004Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Minoru Sakurai, Kenichi Washizuka, Hitoshi Hamashima, Yasuyo Tomishima, Masashi Imanishi, Yutaka Nakajima, Hiroaki Ohtake, Satoru Kuroda, Masayoshi Murata, Hiroshi Kayakiri, Naoaki Fujii, Kiyoshi Taniguchi
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Publication number: 20040180947Abstract: A sulfonamide compound of the formula (I):Type: ApplicationFiled: March 30, 2004Publication date: September 16, 2004Applicant: Fujisawa Pharmaceutical Co., Ltd.Inventors: Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Tsuyoshi Mizutani, Teruo Oku, Noritsugu Yamasaki, Osamu Onomura, Masahiro Nishikawa, Takahiro Hiramura, Takafumi Imoto
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Patent number: 6787565Abstract: A sulfonamide compound of the formula (I): R1—SO2NHCO—A—X—R2 (I) wherein R1 is alky, alkenyl, alkynyl and the like; A is an optionally substitutedheteropolycyclic group except benzimidazolyl, indolyl, 4,7-dihydrobenzimidazolyland 2,3-dihydrobenzoxazinyl; X is alkylene, oxa, oxa(lower)alkylene and the like; and R2 is optionally substituted aryl, substituted biphenylyl and the like, a salt thereof and a pharmaceutical composition comprising the same. The sulfonamide compound is effective for the diseases treatable based on their blood sugar level-depressing activity, cGMP-PDE (especially PDE-V)-inhibiting activity, smooth muscle relaxing activity, bronchodilating activity, vasodilating activity, smooth muscle cell suppressing activity, and antiallergic activity.Type: GrantFiled: January 17, 2002Date of Patent: September 7, 2004Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Tsuyoshi Mizutani, Teruo Oku, Noritsugu Yamasaki, Osamu Onomura, Masahiro Nishikawa, Takahiro Hiramura, Takafumi Imoto
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Publication number: 20040138462Abstract: The present invention relates to a compound formula wherein R1 is phenyl, pyridyl, etc., each of which may be substituted with one or two substituent(s); R2 is hydrogen, an amino protective group, etc.; R3 and R4 are each independently hydrogen, lower alkyl or hydroxy(lower)alkyl; R5 is aryl, ar(lower)alkyl, etc., each of which may be substituted with one, two or three substituent(s); R8 is hydrogen or halogen, X is a single bond or O—CH2—, and n is 0, 1 or 2, or a salt thereof. The compound [I] of the present invention and pharmaceutically acceptable salts thereof are useful for the prophylactic and/or the therapeutic treatment of pollakiurea or urinary incontinence.Type: ApplicationFiled: November 24, 2003Publication date: July 15, 2004Inventors: Minoru Sakurai, Kenichi Washizuka, Hitoshi Hamashima, Yasuyo Tomishima, Masashi Imanishi, Hiroshi Kayakiri, Kiyoshi Taniguchi, Fujiko Takamura
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Publication number: 20040106653Abstract: The present invention relates to a compound formula [I]: 1Type: ApplicationFiled: November 20, 2003Publication date: June 3, 2004Applicant: FUJISAWA PHARMACEUTICAL CO., LTD.Inventors: Minoru Sakurai, Hitoshi Hamashima, Kouji Hattori
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Publication number: 20040037022Abstract: The present invention relates to a compound formula (I) wherein X1 is bond or —O—CH2—, (II) or (III) R1 is hydrogen or an amino protective group, a is phenyl, indolyl or carbazolyl, each of which may be substituted with one or two substituent(s), and B is hydrogen; halogen; lower alkyl; lower alkoxycarbonyl; cyclo(lower)alkyl; or a heterocyclic group, naphthyl, 1,2,3,4-tetrahydronaphthyl, benzyl or phenyl, each of which may be substituted with one or two substituent(s), or a salt thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof are useful for the prophylactic and/or the therapeutic treatment of pollakiures or urinary incontinence.Type: ApplicationFiled: March 21, 2003Publication date: February 26, 2004Inventors: Minoru Sakurai, Kenichi Washizuka, Hitoshi Hamashima, Yasuyo Tomishima, Masashi Imanishi, Yutaka Nakajima, Hiroaki Ohtake, Satoru Kuroda, Masayoshi Murata, Hiroshi Kayakiri, Naoaki Fujii, Kiyoshi Taniguchi
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Publication number: 20030171396Abstract: The present invention relates to a sulfonamide compound of the formula (I): 1Type: ApplicationFiled: February 10, 2003Publication date: September 11, 2003Applicant: Fujisawa Pharmaceutical Co. Ltd.Inventors: Teruo Oku, Noriko Oku, Chikako Oku, Tomohito Oku, Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Naoki Ishibashi, Hiroyuki Setoi, Noritsugu Yamasaki, Takafumi Imoto, Takahiro Hiramura
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Patent number: 6573274Abstract: The present invention relates to a sulfonamide compound of the formula (I): wherein each symbol is as defined in the specification, a salt thereof, and a pharmaceutical composition containing same. This compound can be an effective agent for the prophylaxis and treatment of the diseases curable based on a hypoglycemic action, and the diseases curable based on a cGMP-PDE inhibitory action, a smooth muscle relaxing action, a bronchodilating action, a vasodilating action, a smooth muscle cell inhibitory action and an allergy suppressing action.Type: GrantFiled: September 12, 2001Date of Patent: June 3, 2003Assignee: Fujisawa Pharmaceutical Co. Ltd.Inventors: Teruo Oku, Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Naoki Ishibashi, Hiroyuki Setoi, Noritsugu Yamasaki, Takafumi Imoto, Takahiro Hiramura
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Publication number: 20030073846Abstract: A compound of the formula (I) wherein X1 ? is bond or —O(CH2)m— (in which m is an integral number of 1, 2 or 3); X2 is bond, —(CH2)n—, etc. (in which n is an integral number of 1, 2 or 3); R1 is hydrogen or amino protective group; R2 is hydroxy(lower)alkyl or (lower)alkoxy(lower)alkyl; A is phenyl, pyridyl, indolyl or carbazolyl, each of which may be substituted with one or two substituent(s) selected from the group consisting of halogen, hydroxy, lower alkyl, etc.; and B is phenyl or pyridyl, each of which may be substituted with one or two substituent(s) selected from the group consisting of halogen, hydroxy, nitro, etc.; and a pharmaceutically acceptable salt thereof which is useful as a medicament.Type: ApplicationFiled: August 6, 2002Publication date: April 17, 2003Inventors: Kiyoshi Taniguchi, Hiroshi Kayakiri, Minoru Sakurai, Naokaki Fujii, Kenichi Washizuka, Hitoshi Hamashima, Yasuyo Tomishima, Kaori Hamada, Nobuhiro Yamamoto, Hirofumi Ishikawa, Naoko Unami, Toshiko Miura
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Publication number: 20030032834Abstract: A compound of the formula [Ig]; wherein R1 is hydrogen or an amino protective group, R2 is hydrogen or hydroxy, and R3 and R4 are independently N-methyl-methoxycarbonylamino, N-ethyl-methoxycarbonylamino, N-propyl-methoxycarbonylamino or 3-ethylureid, or R3 and R4 are both methoxycarbonylamino substituted at a meta position of the benzene rings, or a salt thereof, and (2S)-1-phenoxy-3-[3,3-bis[4-methoxycarbonylamino)-phenyl]propylamino]-2-propanol sulfate (2:1) and some crystal forms thereof as &bgr;3adrenergic receptor agonists.Type: ApplicationFiled: August 19, 2002Publication date: February 13, 2003Inventors: Hiroshi Kayakiri, Naoaki Fujii, Hitoshi Hamashima, Minoru Sakurai, Kenichi Washizuka, Yasuyo Tomishima, Kiyoshi Taniguchi, Naoko Unami, Yutaka Kono, Hirofumi Ishikawa, Nobuhiro Yamamoto, Hisashi Mimura
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Publication number: 20020099212Abstract: A sulfonamide compound of the formula (I):Type: ApplicationFiled: January 17, 2002Publication date: July 25, 2002Applicant: Fujisawa Pharmaceutical Co. Ltd.Inventors: Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Tsuyoshi Mizutani, Teruo Oku, Noritsugu Yamasaki, Osamu Onomura, Masahiro Nishikawa, Takahiro Hiramura, Takafumi Imoto
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Patent number: 6348474Abstract: A sulfonamide compound of the formula (I): R1—SO2NHCO—A—R2 (I) wherein R1 is alkyl, alkenyl, alkynyl and the like; A is an optionally substituted heteropolycyclic group except benzimidazolyl, indolyl, 4,7-dihydrobenzimidazolyl and 2,3-dihydrobenzoxazinyl; X is alkylene, oxa, oxa(lower)alkylene and the like; and R2 is optionally substituted aryl, substituted biphenylyl and the like, a salt thereof and a pharmaceutical composition comprising the same. The sulfonamide compound is effective for the diseases treatable based on their blood sugar level-depressing activity, cGMP-PDE (especially PDE-V)-inhibiting activity, smooth muscle relaxing activity, bronchodilating activity, vasodilating activity, smooth muscle cell suppressing activity, and antiallergic activity.Type: GrantFiled: February 14, 2000Date of Patent: February 19, 2002Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada, Tsuyoshi Mizutani, Teruo Oku, Noritsugu Yamasaki, Osamu Onomura, Masahiro Nishikawa, Takahiro Hiramura, Takafumi Imoto
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Patent number: 6242474Abstract: Novel aromatic ring derivatives represented by formula (I) or their pharmaceutical acceptable salts are provided. wherein Nu represents a 5- or 6-membered aromatic ring; ch1 and ch2 each represents a cross-linking group; and A represents an aromatic ring. These compounds have blood sugar-depressing activity or PDE 5 inhibitory activity and are useful as medicines for treating impaired glucose tolerance, diabetes, diabetic complications, syndrome of insulin-resistance, polycystic ovary syndrome, hyperlipidemia, atherosclerosis, cardiovascular disorders, hyperglycemia, hypertension, stenocardia, pulmonary hypertension, congestive heart failure, glomerulopathy, tubulointerstitial disorders, renal failure, angiostenosis, distal angiopathy, cerebral apoplexy, chronic reversible obstructions, autoimmune diseases, allergic rhinitis, urticaria, glaucoma, diseases characterized by enteromotility disorders, impotence, nephritis, cachexia, pancreatitis, restenosis after PTCA, etc.Type: GrantFiled: March 21, 2000Date of Patent: June 5, 2001Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Noritsugu Yamasaki, Takafumi Imoto, Takahiro Hiramura, Osamu Onomura, Masahiro Nishikawa, Hiroshi Kayakiri, Yoshito Abe, Hitoshi Hamashima, Hitoshi Sawada
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Patent number: 6069162Abstract: The object amide compounds of the present invention are novel and can be represented by the following general formula (I): whereinR.sup.1 is indolyl or benzofuranyl;R.sup.2 is hydrogen, lower alkylthio(lower)alkyl or a group of the formula: ##STR1## in which R.sup.5 is hydrogen, lower alkoxy or halogen; R.sup.3 is hydrogen, quinolyl or phenyl which may have a suitable substituent selected from the group consisting of lower alkyl, lower alkoxy, lower alkylthio and halogen;R.sup.4 is hydrogen or optionally esterified carboxy; andX is S or NR.sup.6in which R.sup.6 is hydrogen, lower alkyl or a group of the formula: ##STR2## in which R.sup.7 is lower alkyl or lower alkoxy.Type: GrantFiled: May 28, 1999Date of Patent: May 30, 2000Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Yoshikuni Itoh, Takumi Yatabe, deceased, Takayuki Inoue, Hitoshi Hamashima
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Patent number: 5932737Abstract: New peptide compounds of the formula:1.Type: GrantFiled: May 30, 1997Date of Patent: August 3, 1999Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Yoshikuni Itoh, Toshiro Iwamoto, Takumi Yatabe, Hitoshi Hamashima, Takayuki Inoue, Seiji Hashimoto, Teruo Oku
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Patent number: 5869460Abstract: There are described sulfated and phosphated saccharide erivatives of the Formula ##STR1## wherein R.sub.1 is hydrogen atom or a residue of sulfate, phosphate or L-fucose; R.sub.2, R.sub.3 and R.sub.4 are hydrogen atom or a residue of sulfate or phosphate, respectively; 1 is an integer of 0 or 1;m is an integer of 0-15; and n is an integer of 0-21, or pharmaceutically acceptable salts thereof, a process for the preparation of the derivatives and salts as well as use thereof, as an anti-inflammatory agent.Type: GrantFiled: October 29, 1996Date of Patent: February 9, 1999Assignee: Sanwa Kaguku Kenkyusho Co., Ltd.Inventors: Toshinao Usui, Takao Igami, Takuji Kakigami, Hitoshi Hamashima, Takahito Jomori, Akira Tashita, Yoshiro Ishiwatari, Shoji Yokochi, Takahiko Mitani, Yasuo Suzuki, Akira Hasegawa