Patents by Inventor Tadayuki Ibuki
Tadayuki Ibuki 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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Publication number: 20140363491Abstract: The present disclosure provides lipid-containing compositions, including targeted liposomes encapsulating drug, and pharmaceutical formulations thereof, as well as methods for the making and using the lipid-containing compositions, including the use of the targeted liposomes in the treatment of cancer and other diseases.Type: ApplicationFiled: May 9, 2014Publication date: December 11, 2014Applicant: Mebiopharm Co., Ltd.Inventors: Kazushi OKADA, Tadayuki IBUKI, Donghyun KIM, Tadashi FUJISAWA
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Patent number: 8758810Abstract: The present disclosure provides lipid-containing compositions, including targeted liposomes encapsulating drug, and pharmaceutical formulations thereof, as well as methods for the making and using the lipid-containing compositions, including the use of the targeted liposomes in the treatment of cancer and other diseases.Type: GrantFiled: September 27, 2010Date of Patent: June 24, 2014Assignee: Mebiopharm Co., Ltd.Inventors: Kazushi Okada, Tadayuki Ibuki, Donghyun Kim, Tadashi Fujisawa
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Publication number: 20110081404Abstract: The present disclosure provides lipid-containing compositions, including targeted liposomes encapsulating drug, and pharmaceutical formulations thereof, as well as methods for the making and using the lipid-containing compositions, including the use of the targeted liposomes in the treatment of cancer and other diseases.Type: ApplicationFiled: September 27, 2010Publication date: April 7, 2011Applicant: Mebiopharm Co., Ltd.Inventors: Kazushi Okada, Tadayuki Ibuki, Donghyun Kim, Tadashi Fujisawa
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Patent number: 7829113Abstract: The present disclosure provides lipid-containing compositions, including targeted liposomes encapsulating drug, and pharmaceutical formulations thereof, as well as methods for the making and using the lipid-containing compositions, including the use of the targeted liposomes in the treatment of cancer and other diseases.Type: GrantFiled: March 8, 2006Date of Patent: November 9, 2010Assignee: Mebiopharm Co., Ltd.Inventors: Kazushi Okada, Tadayuki Ibuki, Donghyun Kim, Tadashi Fujisawa
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Publication number: 20060222696Abstract: The present disclosure provides lipid-containing compositions, including targeted liposomes encapsulating drug, and pharmaceutical formulations thereof, as well as methods for the making and using the lipid-containing compositions, including the use of the targeted liposomes in the treatment of cancer and other diseases.Type: ApplicationFiled: March 8, 2006Publication date: October 5, 2006Inventors: Kazushi Okada, Tadayuki Ibuki, Donghyun Kim, Tadashi Fujisawa
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Patent number: 4751302Abstract: A compound of the formula (I): ##STR1## wherein W.sub.1 and W.sub.2 each independently is a hydrogen atom or a ##STR2## wherein Y is a n-C.sub.1-6 alkylene group or a n-C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.1 and R.sub.2 each independently is a hydrogen atom or a C.sub.1-6 alkyl group, and ##STR3## may form a saturated heterocyclic ring selected from the group consisting of morpholino, pyrrolidino, piperidino, homopiperidino and piperazino groups, and the saturated heterocyclic ring except the morpholino group may have at least one C.sub.1-4 alkyl group, hydroxyl group or halogen atom as a substituent;Z.sub.1 is a hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, a hydroxyl group, an amino group, a C.sub.1-3 alkyl group or a methoxy group;Z.sub.2 is a hydrogen atom or an amino group;when W.sub.1 and W.sub.2 are both hydrogen atoms, Z.sub.1 is a hydroxyl group or an iodine atom and Z.sub.2 is hydrogen atom, or Z.sub.1 and Z.sub.Type: GrantFiled: May 29, 1985Date of Patent: June 14, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tadayuki Ibuki, Taisuke Sugihara, Hiromu Kawakubo, Takanori Sone
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Patent number: 4585869Abstract: A compound of the formula (I): ##STR1## wherein W.sub.1 is a hydrogen atom or a ##STR2## wherein Y is a C.sub.1-6 alkylene group or a C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.1 and R.sub.2 each independently is a hydrogen atom or a C.sub.1-6 alkyl group and R.sub.1 and R.sub.2 may form a C.sub.4-6 heterocyclic ring or a nitrogen-containing C.sub.4-6 heterocyclic ring together with the adjacent nitrogen atom and the C.sub.4-6 heterocyclic rings may have at least one C.sub.1-6 alkyl group, hydroxyl group or halogen atom;W.sub.2 is a hydrogen atom or a ##STR3## wherein Z is a C.sub.1-6 alkylene group or a C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.3 and R.sub.4 each independently is a hydrogen atom or a C.sub.1-6 alkyl group and R.sub.3 and R.sub.4 may form a C.sub.4-6 heterocyclic ring or a nitrogen-containing C.sub.4-6 heterocyclic ring together with the adjacent nitrogen atom and the C.sub.4-6 heterocyclic rings may have at least one C.Type: GrantFiled: July 31, 1984Date of Patent: April 29, 1986Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tadayuki Ibuki, Taisuke Sugihara, Hiromu Kawakubo, Takanori Sone
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Patent number: 4549023Abstract: A compound of the formula (I): ##STR1## wherein W.sub.1 is a hydrogen atom or a ##STR2## wherein Y is a C.sub.1-6 alkylene group or a C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.1 and R.sub.2 each independently is a hydrogen atom or a C.sub.1-6 alkyl group and R.sub.1 and R.sub.2 may form a C.sub.4-6 heterocyclic ring or a nitrogen-containing C.sub.4-6 heterocyclic ring together with the adjacent nitrogen atom and the C.sub.4-6 heterocyclic rings may have at least one C.sub.1-6 alkyl group, hydroxyl group or halogen atom;W.sub.2 is a hydrogen atom or a ##STR3## wherein Z is a C.sub.1-6 alkylene group or a C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.3 and R.sub.4 each independently is a hydrogen atom or a C.sub.1-6 alkyl group and R.sub.3 and R.sub.4 may form a C.sub.4-6 heterocyclic ring or a nitrogen-containing C.sub.4-6 heterocyclic ring together with the adjacent nitrogen atom and the C.sub.4-6 heterocyclic rings may have at least one C.Type: GrantFiled: July 31, 1984Date of Patent: October 22, 1985Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tadayuki Ibuki, Taisuke Sugihara, Hiromu Kawakubo, Takanori Sone
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Patent number: 4533731Abstract: A compound of the formula (I): ##STR1## wherein W.sub.1 and W.sub.2 each independently is a hydrogen atom or a ##STR2## group wherein Y is a n-C.sub.1-6 alkylene group or a n-C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.1 and R.sub.2 each independently is a hydrogen atom or a C.sub.1-6 alkyl group, and ##STR3## group in ##STR4## group may form a saturated heterocyclic ring selected from the group consisting of morpholino, pyrrolidino, piperidino, homopiperidino and piperazino groups, and the saturated heterocyclic ring except the morpholino group may have at least one C.sub.1-4 alkyl group, hydroxyl group or halogen atom as a substituent;Z.sub.1 is a hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, a hydroxyl group, an amino group, a C.sub.1-3 alkyl group or a methoxy group;Z.sub.2 is a hydrogen atom or an amino group;when W.sub.1 and W.sub.2 are both hydrogen atoms, Z.sub.1 is a hydroxyl group or an iodine atom and Z.sub.2 is hydrogen atom, or Z.sub.1 and Z.Type: GrantFiled: March 16, 1983Date of Patent: August 6, 1985Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tadayuki Ibuki, Taisuke Sugihara, Hiromu Kawakubo, Takanori Sone
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Patent number: 4474964Abstract: A compound of the formula (I): ##STR1## wherein W.sub.1 is a hydrogen atom or a ##STR2## group wherein Y is a C.sub.1-6 alkylene group or a C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.1 and R.sub.2 each independently is a hydrogen atom or a C.sub.1-6 alkyl group and R.sub.1 and R.sub.2 may form a C.sub.4-6 heterocyclic ring or a nitrogen-containing C.sub.4-6 heterocyclic ring together with the adjacent nitrogen atom and the C.sub.4-6 heterocyclic rings may have at least one C.sub.1-6 alkyl group, hydroxyl group or halogen atom;W.sub.2 is a hydrogen atom or a ##STR3## group wherein Z is a C.sub.1-6 alkylene group or a C.sub.1-6 alkylene group having a C.sub.1-6 alkyl group substituent; and R.sub.3 and R.sub.4 each independently is a hydrogen atom or a C.sub.1-6 alkyl group and R.sub.3 and R.sub.4 may form a C.sub.4-6 heterocyclic ring or a nitrogen-containing C.sub.4-6 heterocyclic ring together with the adjacent nitrogen atom and the C.sub.Type: GrantFiled: January 9, 1984Date of Patent: October 2, 1984Assignee: Asahi, Kasei, Kogyo, Kabushiki, KaishaInventors: Tadayuki Ibuki, Taisuke Sugihara, Hiromu Kawakubo, Takanori Sone
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Patent number: 4249019Abstract: A carboxylic ester is produced in one step in a high yield and with a high selectivity by reacting an aldehyde with an alcohol in the presence of oxygen by using a catalyst comprising (I) palladium, (II) at least one compound selected from the group consisting of lead compounds, thallium compounds and mercury compounds and (III) at least one compound selected from the group consisting of alkali metal compounds and alkaline earth metal compounds.Type: GrantFiled: November 13, 1978Date of Patent: February 3, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Nobuhiro Tamura, Yohei Fukuoka, Setsuo Yamamatsu, Yoshio Suzuki, Ryoichi Mitsui, Tadayuki Ibuki