Patents by Inventor Ken-Ichi Kawaguchi
Ken-Ichi Kawaguchi 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: 8067586Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: January 15, 2010Date of Patent: November 29, 2011Assignees: Astellas Pharma Inc., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20100137585Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: January 15, 2010Publication date: June 3, 2010Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20100137584Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: January 15, 2010Publication date: June 3, 2010Inventors: Masahiko HAYAKAWA, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20070037805Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: October 6, 2006Publication date: February 15, 2007Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 7173029Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: October 14, 2005Date of Patent: February 6, 2007Assignees: Astellas Pharma Inc., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 7037915Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: August 13, 2004Date of Patent: May 2, 2006Assignees: Astellas Pharma Inc., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20060058321Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: October 14, 2005Publication date: March 16, 2006Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20050014771Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: August 13, 2004Publication date: January 20, 2005Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 6838457Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: June 10, 2003Date of Patent: January 4, 2005Assignees: Yamanouchi Pharmaceutical Co., Ltd., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 6770641Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: June 10, 2003Date of Patent: August 3, 2004Assignees: Yamanouchi Pharmaceutical Co., Ltd., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20040009978Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: June 10, 2003Publication date: January 15, 2004Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20030236271Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: June 10, 2003Publication date: December 25, 2003Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 6653320Abstract: The present invention relates to novel compounds having a phosphatidylinositol 3 kinase (PI3K) inhibiting activity which are useful as medicaments, more particularly as antitumor agent. Novel 3-(imidazo[1,2-a]pyridin-3-yl) derivatives or salts thereof exhibit an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity, and are thus useful as medicaments, especially as PI3K inhibitors and antitumor agents.Type: GrantFiled: March 1, 2002Date of Patent: November 25, 2003Assignees: Yamanouchi Pharmaceutical Co. Ltd., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Ken-Ichi Kawaguchi, Koyo Matsuda, Noriko Ishikawa, Tomonobu Koizumi, Mayumi Yamano, Minoru Okada, Mitsuaki Ohta
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Patent number: 6608056Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: September 13, 2002Date of Patent: August 19, 2003Assignees: Yamanouchi Pharmaceutical Co., Ltd, Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 6608053Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: April 26, 2001Date of Patent: August 19, 2003Assignees: Yamanouchi Pharmaceutical Co., Ltd., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20020151544Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: ApplicationFiled: April 26, 2001Publication date: October 17, 2002Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Publication number: 20020151549Abstract: The present invention relates to novel compounds having a phosphatidylinositol 3 kinase (PI3K) inhibiting activity which are useful as medicaments, more particularly as antitumor agent. Novel 3-(imidazo[1,2-a]pyridin-3-yl) derivatives or salts thereof exhibit an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity, and are thus useful as medicaments, especially as PI3K inhibitors and antitumor agents.Type: ApplicationFiled: March 1, 2002Publication date: October 17, 2002Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Ken-Ichi Kawaguchi, Koyo Matsuda, Noriko Ishikawa, Tomonobu Koizumi, Mayumi Yamano, Minoru Okada, Mitsuaki Ohta
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Patent number: 6403588Abstract: The present invention relates to novel compounds having a phosphatidylinositol 3 kinase (PI3K) inhibiting activity which are useful as medicaments, more particularly as antitumor agent. Novel 3-(imidazo[1,2-a]pyridin-3-yl) derivatives or salts thereof exhibit an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity, and are thus useful as medicaments, especially as PI3K inhibitors and antitumor agents.Type: GrantFiled: April 26, 2001Date of Patent: June 11, 2002Assignees: Yamanouchi Pharmaceutical Co., Ltd., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology, Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Ken-Ichi Kawaguchi, Koyo Matsuda, Noriko Ishikawa, Tomonobu Koizumi, Mayumi Yamano, Minoru Okada, Mitsuaki Ohta