Patents by Inventor Yukimasa Shiotsu
Yukimasa Shiotsu 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: 20060281789Abstract: The present invention provides a protein kinase inhibitor (excluding c-Jun N-terminal kinase inhibitor) which comprises, as an active ingredient, an indazole derivative represented by Formula (I) (wherein R1 represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group) or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: July 30, 2004Publication date: December 14, 2006Applicant: KYOWA HAKKO KOGYO CO., LTDInventors: Yukimasa Shiotsu, Hiroshi Umehara, Fumihiko Kanai, Shinji Nara, Yoshihisa Ohta, Yutaka Kanda, Shiro Akinaga, Tomoki Naoe, Hitoshi Kiyoi, Tomoyuki Nakazato, Satoshi Tashiro
-
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
-
Patent number: 6884419Abstract: The present invention relates to a fusion polypeptide which comprises a polypeptide having G-CSF activity and a polypeptide having TPO activity and DNA which codes for the fusion polypeptide, to a fusion polypeptide in which a polypeptide having G-CSF activity and a polypeptide having TPO activity are fused via a spacer peptide and DNA which codes for the fusion polypeptide and to a polypeptide in which the fusion polypeptide comprising a polypeptide having G-CSF activity and a polypeptide having TPO activity is chemically modified with a polyalkylene glycol derivative. It also relates to an anemia-treating composition containing the fusion polypeptide as an active ingredient.Type: GrantFiled: October 6, 2000Date of Patent: April 26, 2005Assignee: Kyowa Hakko Kogyo, Co., Ltd.Inventors: Haruhiko Yokoi, Yukimasa Shiotsu, Noboru Konishi, Hideharu Anazawa, Tatsuya Tamaoki, Motoo Yamasaki, Yoko Kato, Kazuhisa Uchida, Kinya Yamashita
-
Publication number: 20040254241Abstract: The present invention provides an aryl sulfamate derivative represented by Formula (I) 1Type: ApplicationFiled: July 12, 2004Publication date: December 16, 2004Inventors: Yoji Ino, Nobuyoshi Amishiro, Kozue Muramatsu, Yukimasa Shiotsu, Chikara Murakata
-
Publication number: 20040053990Abstract: Radicicol derivatives represented by the following formula (I) having tyrosine kinase inhibition activity or pharmacologically acceptable salts thereof: 1Type: ApplicationFiled: July 30, 2003Publication date: March 18, 2004Applicant: KYOWA HAKKO KOGYO CO., LTDInventors: Yoji Ino, Nobuyoshi Amishiro, Mayumi Miyata, Chikara Murakata, Harumi Ogawa, Tadakazu Akiyama, Shiro Akinaga, Shiro Soga, Yukimasa Shiotsu
-
Patent number: 6635662Abstract: Radicicol derivatives represented by the following formula (I) having tyrosine kinase inhibition activity or pharmacologically acceptable salts thereof: wherein R1 and R2 are the same or different, and each represents hydrogen, alkanoyl, alkenoyl, tert-butyldiphenylsilyl or tert-butyldimethylsilyl; R3 represents Y—R5 {wherein Y represents substituted or unsubstituted alkylene; and R5 represents CONR5R7 (wherein R6 represents hydrogen, hydroxyl, substituted or unsubstituted lower alkyl, substituted or unsubstituted higher alkyl, and the like; R7 represents hydroxyl, substituted lower alkyl, and the like), CO2R12 (wherein R12 represents substituted lower alkyl, substituted or unsubstituted higher alkyl, and the like), and the like} and the like; X represents halogen or is combined together with R4 to represent a single bond; and R4 is combined together with X to represent a single bond, or represents hydrogen, alkanoyl, and the like.Type: GrantFiled: February 26, 2001Date of Patent: October 21, 2003Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yoji Ino, Nobuyoshi Amishiro, Mayumi Miyata, Chikara Murakata, Harumi Ogawa, Tadakazu Akiyama, Shiro Akinaga, Shiro Soga, Yukimasa Shiotsu
-
Patent number: 6316491Abstract: Radioicol derivatives represented by the following formula (I) having tyrosine kinase inhibition activity or pharmacologically acceptable salts thereof: wherein R1 and R2 are the same or different, and each represents hydrogen, alkanoyl, alkenoyl, tert-butyldiphenylsilyl or tert-butyldimethylsilyl; R3 represents Y—R5 (wherein Y represents substituted or unsubstituted alkylene; and R5 represents CONR6R7 (wherein R6 represents hydrogen, hydroxyl, substituted or unsubstituted lower alkyl, substituted or unsubstituted higher alkyl, and the like; R7 represents hydroxyl, substituted lower alkyl, and the like), CO2R12 (wherein R12 represents substituted lower alkyl, substituted or unsubstituted higher alkyl, and the like), and the like) and the like; X represents halogen or is combined together with R4 to represent a single bond; and R4 is combined together with X to represent a single bond, or represents hydrogen, alkanoyl, and the like.Type: GrantFiled: June 24, 1998Date of Patent: November 13, 2001Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yoji Ino, Nobuyoshi Amishiro, Mayumi Miyata, Chikara Murakata, Harumi Ogawa, Tadakazu Akiyama, Shiro Akinaga, Shiro Soga, Yukimasa Shiotsu
-
Publication number: 20010027208Abstract: Radicicol derivatives represented by the following formula (I) having tyrosine kinase inhibition activity or pharmacologically acceptable salts thereof: 1Type: ApplicationFiled: February 26, 2001Publication date: October 4, 2001Inventors: Yoji Ino, Nobuyoshi Amishiro, Mayumi Miyata, Chikara Murakata, Harumi Ogawa, Tadakazu Akiyama, Shiro Akinaga, Shiro Soga, Yukimasa Shiotsu
-
Patent number: 6239168Abstract: Radicicol derivatives represented by the following formula (I) having tyrosine kinase inhibition activity or pharmacologically acceptable salts thereof: wherein R1 and R2 are the same or different, and each represents hydrogen, alkanoyl, alkenoyl, tert-butyldiphenylsilyl or tert-butyldimethylsilyl; R3 represents Y—R5 {wherein Y represents substituted or unsubstituted alkylene; and R5 represents CONR6R7 (wherein R6 represents hydrogen, hydroxyl, substituted or unsubstituted lower alkyl, substituted or unsubstituted higher alkyl; R7 represents hydroxyl, substituted lower alkyl), CO2R12 (wherein R12 represents substituted lower alkyl, substituted or unsubstituted higher alkyl, X represents halogen.Type: GrantFiled: February 25, 2000Date of Patent: May 29, 2001Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yoji Ino, Nobuyoshi Amishiro, Mayumi Miyata, Chikara Murakata, Harumi Ogawa, Tadakazu Akiyama, Shiro Akinaga, Shiro Soga, Yukimasa Shiotsu
-
Patent number: 5728709Abstract: Described herein is a pyrrolocarbazole derivative and a pharmaceutically acceptable salt thereof having the following formula (I): ##STR1## wherein R.sup.1 is lower alkyl or aralkyl; R.sup.2 is hydrogen, substituted or unsubstituted lower alkyl, lower alkenyl, or substituted or unsubstituted aralkyl; R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 may be the same or different, and are hydrogen, halogen, nitro, substituted or unsubstituted lower alkanoyl, NR.sup.9 R.sup.10, or OR.sup.11 ; R.sup.8 is hydrogen or is combined with R.sup.3 to form --CONR.sup.12 --; and when R.sup.1 is benzyl; R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are not simultaneously hydrogen. A compound of the present invention stimulates platelet production and is useful for treatment of thrombocytopenia.Type: GrantFiled: November 8, 1996Date of Patent: March 17, 1998Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yoji Ikuina, Chikara Murakata, Yutaka Saitoh, Yukimasa Shiotsu, Takako Iida, Tatsuya Tamaoki, Kinya Yamashita, Shiro Akinaga
-
Patent number: 5674867Abstract: The present invention relates to therapeutic agents for thrombocytopenia which contain an indolocarbazole derivative represented by the formula (I) given below or a pharmaceutically acceptable salt thereof as an active ingredient, and to novel indolocarbazole derivatives.Type: GrantFiled: May 18, 1994Date of Patent: October 7, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Tatsuya Tamaoki, Yukimasa Shiotsu, Chikara Murakata, Shiro Akinaga, Masami Okabe, Yutaka Saito, Junichi Watanabe, Takako Shiraki
-
Patent number: 5629304Abstract: The present invention provides a method of treating thrombocytopenia, which comprises administering to a patient suffering from thrombocytopenia, an effective amount of an indolocarbazole derivative represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted aralkyl group or a tetrahydropyranyl group; R.sup.2A and R.sup.3A, which may be the same or different, each represent a hydrogen atom, a substituted or unsubstituted lower alkyl group, a lower alkenyl group, a substituted or unsubstituted aralkyl group or a monosaccharide residue where a hydroxyl group at the anomer position is removed; R.sup.4A and R.sup.5A, which may be the same or different, each represent a hydrogen atom, a formyl group, a hydroxyl group or a halogen atom; W.sup.A1 and W.sup.A2 represent hydrogen atoms or are combined together to form an oxygen atom; and X.sup.A1 and X.sup.Type: GrantFiled: April 25, 1996Date of Patent: May 13, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Chikara Murakata, Fumihiko Kanai, Yutaka Saitoh, Yukimasa Shiotsu, Takako Shiraki, Tatsuya Tamaoki, Shiro Akinaga, Masami Okabe
-
Patent number: 5604219Abstract: Disclosed is an indolocarbazole derivative represented by the following formula (I), or a pharmaceutically acceptable salt thereof: ##STR1## [wherein R.sup.1 represents substituted or unsubstituted lower alkyl, R.sup.2 represents hydrogen, substituted or unsubstituted lower alkyl, R.sup.3 and R.sup.4 are the same or different, and represent hydrogen, nitro, NR.sup.5 R.sup.6, OR.sup.9, substituted or unsubstituted lower alkyl, substituted or unsubstituted lower alkenyl, or CH.dbd.NNR.sup.10 R.sup.11, W represents two hydrogen atoms or oxygen, and Me represents methyl, provided that when R.sup.1 is unsubstituted lower alkyl, R.sup.3 and R.sup.4 are not simultaneously hydrogen.Type: GrantFiled: March 16, 1995Date of Patent: February 18, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Chikara Murakata, Junichi Watanabe, Yutaka Saitoh, Yukimasa Shiotsu, Takako Shiraki, Fumihiko Kanai, Tatsuya Tamaoki, Shiro Akinaga, Masami Okabe