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).

  • Patent number: 7910611
    Abstract: 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: Grant
    Filed: June 22, 2006
    Date of Patent: March 22, 2011
    Assignees: Kyowa Hakko Kirin Co., Ltd., Fujifilm Corporation
    Inventors: Ryuichiro Nakai, Emi Shimoike, Hideaki Kusaka, Chikara Murakata, Yoshinori Yamashita
  • Publication number: 20100029625
    Abstract: 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: Application
    Filed: June 22, 2006
    Publication date: February 4, 2010
    Applicants: KYOWA HAKKO KIRIN CO., LTD., FUJIFILM CORPORATION
    Inventors: Ryuichiro Nakai, Emi Shimoike, Hideaki Kusaka, Chikara Murakata, Yoshinori Yamashita
  • Publication number: 20080262049
    Abstract: 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: Application
    Filed: March 22, 2006
    Publication date: October 23, 2008
    Applicants: KYOWA HAKKO KOGYO CO., LTD., FUJIFILM CORPORATION
    Inventors: Ryuichiro Nakai, Seiho Okamoto, Hideaki Kusaka, Yoshinori Yamashita, Hiroyuki Ishida
  • Publication number: 20070021355
    Abstract: 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: Application
    Filed: May 28, 2004
    Publication date: January 25, 2007
    Inventors: Hiroaki Kohno, Hideaki Kusaka
  • Publication number: 20060252780
    Abstract: 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: Application
    Filed: April 23, 2004
    Publication date: November 9, 2006
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Takao Nakajima, Kimihisa Ueno, Yuji Nomoto, Yuichi Matsumoto, Hiroshi Yano, Satoshi Nakanishi, Kotaro Takasaki, Hideaki Kusaka
  • Publication number: 20060193772
    Abstract: 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: Application
    Filed: September 24, 2004
    Publication date: August 31, 2006
    Inventors: Atsushi Ochiai, Hideaki Kusaka, Tadakazu Akiyama
  • Publication number: 20060046992
    Abstract: 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: Application
    Filed: June 25, 2003
    Publication date: March 2, 2006
    Applicant: 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
  • Patent number: 7005430
    Abstract: 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 lower
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 28, 2006
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kimihisa Ueno, Akira Ogawa, Yoshihisa Ohta, Yuji Nomoto, Kotaro Takasaki, Hideaki Kusaka, Hiroshi Yano, Chiharu Nakagawa, Satoshi Nakanishi
  • Publication number: 20060035875
    Abstract: 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: Application
    Filed: October 9, 2003
    Publication date: February 16, 2006
    Inventors: Yukimasa Shiotsu, Hiroyuki Ishida, Chikara Murakata, Hideaki Kusaka, Shiro Akinaga
  • Publication number: 20040180925
    Abstract: A compound represented by general formula (I):
    Type: Application
    Filed: November 10, 2003
    Publication date: September 16, 2004
    Inventors: Kenji Matsuno, Kimihisa Ueno, Yasuhiro Iwata, Yuichi Matsumoto, Satoshi Nakanishi, Kotaro Tasaki, Hideaki Kusaka, Yuji Nomoto, Akira Ogawa
  • Publication number: 20030176698
    Abstract: A condensed purine derivative represented by Formula (I): 1
    Type: Application
    Filed: October 22, 2002
    Publication date: September 18, 2003
    Inventors: Kimihisa Ueno, Akira Ogawa, Yoshihisa Ohta, Yuji Nomoto, Kotaro Takasaki, Hideaki Kusaka, Hiroshi Yano, Chiharu Nakagawa, Satoshi Nakanishi
  • Patent number: 6489331
    Abstract: 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: Grant
    Filed: April 9, 2001
    Date of Patent: December 3, 2002
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Junichi Shimada, Yoshihisa Ohta, Kotaro Takasaki, Miho Suda, Hideaki Kusaka, Hiroshi Yano, Satoshi Nakanishi, Yuzuru Matsuda
  • Patent number: 6107064
    Abstract: 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: Grant
    Filed: January 17, 1996
    Date of Patent: August 22, 2000
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Junichi Shimada, Tamotsu Eguchi, Kenichi Mochida, Akira Horiguchi, Tohru Yasuzawa, Hideaki Kusaka, Hiromi Nonaka, Fumio Suzuki
  • Patent number: 5658917
    Abstract: 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: Grant
    Filed: April 28, 1995
    Date of Patent: August 19, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
  • Patent number: 5648353
    Abstract: 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: Grant
    Filed: May 22, 1995
    Date of Patent: July 15, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
  • Patent number: 5624926
    Abstract: 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: Grant
    Filed: October 17, 1994
    Date of Patent: April 29, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
  • Patent number: 5605900
    Abstract: 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: Grant
    Filed: April 28, 1995
    Date of Patent: February 25, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
  • Patent number: 5395836
    Abstract: 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: Grant
    Filed: April 5, 1994
    Date of Patent: March 7, 1995
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Junichi Shimada, Takashi Kuwabara, Tohru Yasuzawa, Hiroshi Magara, Hiromi Nonaka, Hideaki Kusaka, Fumio Suzuki