Patents by Inventor Hideaki Kusaka
Hideaki Kusaka 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: 7910611Abstract: A therapeutic and/or prophylactic agent for restenosis, which comprises a thiadiazoline derivative represented by the general formula (0), or a pharmaceutically acceptable salt thereof: [wherein, n represents an integer of 1 to 3, R0 represents aryl, —NR1CONR2 (wherein R1 represents a hydrogen atom or the like, and R2 represents lower alkyl or the like) or the like, R3 represents lower alkyl, R4 represents a hydrogen atom or the like, and R5 represents aryl or the like].Type: GrantFiled: June 22, 2006Date of Patent: March 22, 2011Assignees: Kyowa Hakko Kirin Co., Ltd., Fujifilm CorporationInventors: Ryuichiro Nakai, Emi Shimoike, Hideaki Kusaka, Chikara Murakata, Yoshinori Yamashita
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Publication number: 20100029625Abstract: A therapeutic and/or prophylactic agent for restenosis, which comprises a thiadiazoline derivative represented by the general formula (0), or a pharmaceutically acceptable salt thereof: [wherein, n represents an integer of 1 to 3, R0 represents aryl, —NR1CONR2 (wherein R1 represents a hydrogen atom or the like, and R2 represents lower alkyl or the like) or the like, R3 represents lower alkyl, R4 represents a hydrogen atom or the like, and R5 represents aryl or the like].Type: ApplicationFiled: June 22, 2006Publication date: February 4, 2010Applicants: KYOWA HAKKO KIRIN CO., LTD., FUJIFILM CORPORATIONInventors: Ryuichiro Nakai, Emi Shimoike, Hideaki Kusaka, Chikara Murakata, Yoshinori Yamashita
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Publication number: 20080262049Abstract: A therapeutic and/or prophylactic agent for a hematopoietic tumor, which comprises a thiadiazoline derivative represented by the general formula (I), or a pharmaceutically acceptable salt thereof: [Formula 1] [wherein, n represents an integer of 1 to 3, R1 represents a hydrogen atom, R2 represents lower alkyl, or R1 and R2 are combined together to represent alkylene, R3 represents lower alkyl, R4 represents NHSO2R6 (wherein R6 represents hydroxy or the like) or the like, and R5 represents aryl or the like] and the like are provided.Type: ApplicationFiled: March 22, 2006Publication date: October 23, 2008Applicants: KYOWA HAKKO KOGYO CO., LTD., FUJIFILM CORPORATIONInventors: Ryuichiro Nakai, Seiho Okamoto, Hideaki Kusaka, Yoshinori Yamashita, Hiroyuki Ishida
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Publication number: 20070021355Abstract: An object of the present invention is to provide antidepressants or foods and drinks for antidepression. To solve the present problem, the present invention provides antidepressants or foods and drinks for antidepression comprising, as an active ingredient, a compound represented by formula (I): (wherein R1, R2, R3 and R4, which may be the same or different, each represent a hydrogen atom, substituted or unsubstituted lower alkyl, or the like; R5 represents a hydrogen atom, hydroxy, or the like; R6 represents a hydrogen atom, or the like; R7 represents a hydrogen atom or substituted or unsubstituted lower alkyl; and R8, R9, R10 and R11, which may be the same or different, each represent a hydrogen atom or substituted or unsubstituted lower alkyl) or a salt thereof.Type: ApplicationFiled: May 28, 2004Publication date: January 25, 2007Inventors: Hiroaki Kohno, Hideaki Kusaka
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Publication number: 20060252780Abstract: A fused pyrimidine derivative is presented. The derivatie has an insulin secretion stimulating activity represented by Formula (I): {wherein R1 represents a hydrogen atom, lower alkyl, or the like; n represents an integer of 0 to 3; and X1 and X2 may be the same or different and each represents a hydrogen atom, lower alkyl, or the like; and formula (II): represents formula (III): [wherein X—Y—Z represents R2C?CR3—NR4 (wherein R2, R3 and R4 may be the same or different and each represents a hydrogen atom, lower alkyl, or the like)]}, or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: April 23, 2004Publication date: November 9, 2006Applicant: Kyowa Hakko Kogyo Co., Ltd.Inventors: Takao Nakajima, Kimihisa Ueno, Yuji Nomoto, Yuichi Matsumoto, Hiroshi Yano, Satoshi Nakanishi, Kotaro Takasaki, Hideaki Kusaka
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Publication number: 20060193772Abstract: The invention aims to provide a medicament for treating cancer in which a cancer therapeutic effect is synergistically increased using a substance inhibiting activities of insulin-like growth factor-I (IGF-I) and insulin-like growth factor-II (IGF-II). According to the invention, there are provided a medicament for treating cancer which comprises a substance inhibiting activities of IGF-I and IGF-II and which is administered in combination with irradiation; and a medicament for treating cancer comprising a combination of a substance inhibiting activities of IGF-I and IGF-II and a substance having an antitumor activity.Type: ApplicationFiled: September 24, 2004Publication date: August 31, 2006Inventors: Atsushi Ochiai, Hideaki Kusaka, Tadakazu Akiyama
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Publication number: 20060046992Abstract: The present invention provides a compound represented by formula (I): [wherein X—Y-Z represents R5N—C?O (wherein R5 represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted lower alkenyl, or substituted or unsubstituted lower alkynyl), etc; R1 and R2 may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, etc; and R3 and R4 may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, etc], or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: June 25, 2003Publication date: March 2, 2006Applicant: Kyowa Hakko Kogyo Co., Ltd.Inventors: Daisuke Machii, Koji Suzuki, Tsutomu Matsumura, Hitoshi Arai, Miho Iwase, Hiroshi Yano, Satoshi Nakanishi, Fumiko Ogino, Kotaro Takasaki, Hideaki Kusaka
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Patent number: 7005430Abstract: A condensed purine derivative represented by Formula (I): wherein X—Y-Z represents R1N—C?O or N?C—W, R2 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted alicyclic heterocyclic group or the like, n represents an integer of from 0 to 3, V1 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aromatic heterocyclic group, V2 represents a substituted lower alkyl group or a substituted or unsubstituted aromatic heterocyclic group, and when V1 represents a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, and for example, X—Y-Z represents R1aN—C?O and R2 represents a substituted lowerType: GrantFiled: December 22, 2000Date of Patent: February 28, 2006Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kimihisa Ueno, Akira Ogawa, Yoshihisa Ohta, Yuji Nomoto, Kotaro Takasaki, Hideaki Kusaka, Hiroshi Yano, Chiharu Nakagawa, Satoshi Nakanishi
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Publication number: 20060035875Abstract: A therapeutic agent for a hormone-dependent cancer, which comprises (a) a steroid-sulfatase inhibitor and (b) an agent for hormone therapy and/or an agent for chemotherapy, which may be administered together or separately at an interval, is provided. A method for treating a hormone-dependent cancer, which comprises administering (a) a steroid-sulfatase inhibitor and (b) an agent for hormone therapy and/or an agent for chemotherapy together or separately at an interval, is also provided. A steroid-sulfatase inhibitor which is used in combination with an agent for hormone therapy and/or an agent for chemotherapy, and which is administered together therewith or separately therefrom at an interval, is also provided. A kit for treating a hormone-dependent cancer, which comprises a first component comprising (a) a steroid-sulfatase inhibitor and a second component comprising (b) an agent for hormone therapy and/or an agent for chemotherapy, is also provided.Type: ApplicationFiled: October 9, 2003Publication date: February 16, 2006Inventors: Yukimasa Shiotsu, Hiroyuki Ishida, Chikara Murakata, Hideaki Kusaka, Shiro Akinaga
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Publication number: 20040180925Abstract: A compound represented by general formula (I):Type: ApplicationFiled: November 10, 2003Publication date: September 16, 2004Inventors: Kenji Matsuno, Kimihisa Ueno, Yasuhiro Iwata, Yuichi Matsumoto, Satoshi Nakanishi, Kotaro Tasaki, Hideaki Kusaka, Yuji Nomoto, Akira Ogawa
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Publication number: 20030176698Abstract: A condensed purine derivative represented by Formula (I): 1Type: ApplicationFiled: October 22, 2002Publication date: September 18, 2003Inventors: Kimihisa Ueno, Akira Ogawa, Yoshihisa Ohta, Yuji Nomoto, Kotaro Takasaki, Hideaki Kusaka, Hiroshi Yano, Chiharu Nakagawa, Satoshi Nakanishi
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Patent number: 6489331Abstract: A medicament for the therapeutic treatment of diabetes which comprises as an active ingredient a compound represented by the general formula (I): wherein R1 represents a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aromatic heterocyclic group, R2 represents a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aromatic heterocyclic group, R3 represents a hydrogen atom, a lower alkyl group or a substituted or unsubstituted aralkyl group, X1 and X2 independently represent a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, and the symbol “n” represents an integer of from 0 to 3, or a physiologically acceptable salt thereof.Type: GrantFiled: April 9, 2001Date of Patent: December 3, 2002Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Junichi Shimada, Yoshihisa Ohta, Kotaro Takasaki, Miho Suda, Hideaki Kusaka, Hiroshi Yano, Satoshi Nakanishi, Yuzuru Matsuda
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Patent number: 6107064Abstract: The present invention relates to a process for producing a xanthine derivative represented by formula (II), comprising converting a xanthine derivative represented by formula (I) {hereinafter, referred to as Compound (I)}: ##STR1## (wherein R.sup.1 and R.sup.2 independently represent hydrogen, or hydroxy-substituted, oxo-substituted, or unsubstituted lower alkyl) into a xanthine derivative represented by formula (II) {hereinafter, referred to as Compound (II)}: ##STR2## (wherein R.sup.3 and R.sup.4 independently represent hydrogen, or hydroxy-substituted, oxo-substituted, or unsubstituted lower alkyl; R.sup.5 and R.sup.6 independently represent hydrogen, hydroxy, or oxo; with the proviso that R.sup.5 and R.sup.6 are both hydrogen, at least one of R.sup.3 and R.sup.Type: GrantFiled: January 17, 1996Date of Patent: August 22, 2000Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Junichi Shimada, Tamotsu Eguchi, Kenichi Mochida, Akira Horiguchi, Tohru Yasuzawa, Hideaki Kusaka, Hiromi Nonaka, Fumio Suzuki
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Patent number: 5658917Abstract: The present invention relates to an adenosine uptake inhibitor and an agent for the myocardium protection or the prevention or treatment of inflammatory edema, comprising a 1,2,3,4-tetrahydro-2,4-dioxoquinazoline derivative represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, alkenyl, or substituted or unsubstituted aralkyl; R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent hydrogen, halogen, amino, mono- or di(lower alkyl)amino, lower alkanoylamino, nitro, cyano, substituted or unsubstituted lower alkyl, hydroxy, lower alkoxy, lower alkylthio, carboxy, lower alkoxycarbonyl, lower alkanoyl, aralkyloxy, or lower alkanoyloxy; R.sup.6, R.sup.7, R.sup.8, and R.sup.9 independently represent hydrogen, hydroxy, substituted or unsubstituted lower alkoxy, or aralkyloxy, or any adjoining two of them are combined to form methylenedioxy; R.sup.10 represents hydrogen or lower alkyl; and Y and Z independently represent N or C--R.sup.11 (wherein R.Type: GrantFiled: April 28, 1995Date of Patent: August 19, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
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Patent number: 5648353Abstract: The present invention relates to an adenosine uptake inhibitor and an agent for the myocardium protection or the prevention or treatment of inflammatory edema, comprising a 1,2,3,4-tetrahydro-2,4-dioxoquinazoline derivative represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, alkenyl, or substituted or unsubstituted aralkyl; R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent hydrogen, halogen, amino, mono- or di(lower alkyl)amino, lower alkanoylamino, nitro, cyano, substituted or unsubstituted lower alkyl, hydroxy, lower alkoxy, lower alkylthio, carboxy, lower alkoxycarbonyl, lower alkanoyl, aralkyloxy, or lower alkanoyloxy; R.sup.6, R.sup.7, R.sup.8, and R.sup.9 independently represent hydrogen, hydroxy, substituted or unsubstituted lower alkoxy, or aralkyloxy, or any adjoining two of them are combined to form methylenedioxy; R.sup.10 represents hydrogen or lower alkyl; and Y and Z independently represent N or C--R.sup.11 (wherein R.Type: GrantFiled: May 22, 1995Date of Patent: July 15, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
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Patent number: 5624926Abstract: The present invention relates to an adenosine uptake inhibitor and an agent for the myocardium protection or the prevention or treatment of inflammatory edema, comprising a 1,2,3,4-tetrahydro-2,4-dioxoquinazoline derivative represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, alkenyl, or substituted or unsubstituted aralkyl; R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent hydrogen, halogen, amino, mono- or di(lower alkyl)amino, lower alkanoylamino, nitro, cyano, substituted or unsubstituted lower alkyl, hydroxy, lower alkoxy, lower alkylthio, carboxy, lower alkoxycarbonyl, lower alkanoyl, aralkyloxy, or lower alkanoyloxy; R.sup.6, R.sup.7, R.sup.8, and R.sup.9 independently represent hydrogen, hydroxy, substituted or unsubstituted lower alkoxy, or aralkyloxy, or any adjoining two of them are combined to form methylenedioxy; R.sup.10 represents hydrogen or lower alkyl; and Y and Z independently represent N or C--R.sup.11 (wherein R.Type: GrantFiled: October 17, 1994Date of Patent: April 29, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
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Patent number: 5605900Abstract: The present invention relates to an adenosine uptake inhibitor and an agent for the myocardium protection or the prevention or treatment of inflammatory edema, comprising a 1,2,3,4-tetrahydro-2,4-dioxoquinazoline derivative represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, alkenyl, or substituted or unsubstituted aralkyl; R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent hydrogen, halogen, amino, mono- or di(lower alkyl)amino, lower alkanoylamino, nitro, cyano, substituted or unsubstituted lower alkyl, hydroxy, lower alkoxy, lower alkylthio, carboxy, lower alkoxycarbonyl, lower alkanoyl, aralkyloxy, or lower alkanoyloxy; R.sup.6, R.sup.7, R.sup.8, and R.sup.9 independently represent hydrogen, hydroxy, substituted or unsubstituted lower alkoxy, or aralkyloxy, or any adjoining two of them are combined to form methylenedioxy; R.sup.10 represents hydrogen or lower alkyl; and Y and Z independently represent N or C-R.sup.11 (wherein R.Type: GrantFiled: April 28, 1995Date of Patent: February 25, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
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Patent number: 5395836Abstract: There is provided a novel xanthine Compound(I) ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each represent hydroxy-substituted, oxo-substituted or unsubstituted lower alkyl, Y is a single bond or alkylene, and Q is ##STR2## wherein R.sup.3 and R.sup.4 are the same or different and each represent hydrogen or hydroxy, n is 0 or 1; provided that when both of R.sup.3 and R.sup.4 are hydrogen, at least one of R.sup.1 and R.sup.2 is hydroxy-substituted or oxo-substituted lower alkyl; or a pharmaceutically acceptable salt thereof.The xanthine compound has adenosine A.sub.1 receptor antagonizing activity, and thus shows diuretic effect, renal-protecting effect, bronchodilatory effect, cerebral function improving effect and anti-dementia effect.Type: GrantFiled: April 5, 1994Date of Patent: March 7, 1995Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Junichi Shimada, Takashi Kuwabara, Tohru Yasuzawa, Hiroshi Magara, Hiromi Nonaka, Hideaki Kusaka, Fumio Suzuki