Patents by Inventor Hirofumi Terasawa
Hirofumi Terasawa 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: 10518528Abstract: Provided is a printer control device that controls a printer that includes an ink jet head unit that has head arrays, in which three or more ink jet heads for ejecting ink from nozzle arrays are aligned in a nozzle array extending direction, the printer control device includes a head control section that causes an ink jet head unit to execute printing without using a designated head that is an ink jet head designated and all ink jet heads aligned on one side in the nozzle array extending direction with reference to the designated head, in a designation mode, in which inhibition of use of the ink jet heads is designated.Type: GrantFiled: August 16, 2018Date of Patent: December 31, 2019Assignee: SEIKO EPSON CORPORATIONInventor: Hirofumi Terasawa
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Publication number: 20190054736Abstract: Provided is a printer control device that controls a printer that includes an ink jet head unit that has head arrays, in which three or more ink jet heads for ejecting ink from nozzle arrays are aligned in a nozzle array extending direction, the printer control device includes a head control section that causes an ink jet head unit to execute printing without using a designated head that is an ink jet head designated and all ink jet heads aligned on one side in the nozzle array extending direction with reference to the designated head, in a designation mode, in which inhibition of use of the ink jet heads is designated.Type: ApplicationFiled: August 16, 2018Publication date: February 21, 2019Applicant: SEIKO EPSON CORPORATIONInventor: Hirofumi Terasawa
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Publication number: 20080244138Abstract: A microcomputer includes a plurality of processing circuits for executing a plurality of interrupt processes each corresponding to one of a first plurality of causes) a cause register circuit for representing whether each of the first plurality of causes has been solved or unsolved, a processing circuit selection register for defining a plurality of correspondences each between one of the first plurality of causes and one of the plurality of processing circuits responsible to execute one the interrupt processes corresponding to the one of the first plurality of causes, and for outputting, in response to occurrence of one of the causes, to the plurality of processing circuits an interrupt signal representing that one of the interrupt processes should be executed, a vector signal indicating an area in which a content of the one of the interrupt processes corresponding to the one of the causes, and a first selection signal representing which one of the processing circuits should execute the one of the interruptType: ApplicationFiled: March 21, 2008Publication date: October 2, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Hirofumi Terasawa
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Patent number: 6799157Abstract: An objective is to provide a microcomputer, electronic equipment and emulation method which can realize the optimum circumstance of evaluation while saving the number of terminals. An external bus is shared between external and emulation memories. In the emulation mode, the access of CPU to an internal ROM is switched to the access of CPU to the emulation memory through an external bus. The emulation mode is turned ON or OFF through a mode selection terminal or mode selection register. The emulation memory is controlled by a control signal CNT2 different from a control signal CNT1 which controls the external memory. A memory read signal in CNT2 become active at a timing earlier than that of a memory read signal in CNT1. Thus, the instruction is fetched and decoded within one clock cycle. A mode selection terminal is further provided for selecting a mode of performing the boot from the emulation memory, internal ROM or external memory and a made of selecting OPT mode.Type: GrantFiled: March 21, 2000Date of Patent: September 28, 2004Assignee: Seiko Epson CorporationInventors: Makoto Kudo, Hirofumi Terasawa, Yoshiyuki Miyayama
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Patent number: 6646123Abstract: The present invention relates to a novel taxol derivative having an antitumor activity which is represented by formula (1). [In the formula (I), R1: a phenyl group, R2: an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group or an alkoxyl group, R3: a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxyl group, a group —O—R311 an acyloxy group or a group —O—CO—R31, (in which R31: an alkylamino group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group), R4 and R5: a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, Z1: a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z2: a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z3: an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group].Type: GrantFiled: April 22, 2002Date of Patent: November 11, 2003Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Hirofumi Terasawa, Tsunehiko Soga, Takashi Ishiyama
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Publication number: 20030162971Abstract: The present invention relates to a novel taxol derivative having an antitumor-activity which is represented by formula (1).Type: ApplicationFiled: April 22, 2002Publication date: August 28, 2003Applicant: DAIICHI PHARMACEUTICAL CO., LTD.Inventors: Hirofumi Terasawa, Tsunehiko Soga, Takashi Ishiyama
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Patent number: 6552197Abstract: Disclosed are a process for the preparation of a compound represented by the formula (1), which comprises treating a compound represented by the formula (2) with methanesulfonic acid and then subjecting the thus-treated compound to recrystallization; and Compound (1) so obtained. This Compound (1) is free of hygroscopicity, excellent in filterability and solubility and easy in handling. Furthermore, according to the preparation process of the present invention, an unnecessary isomer can be converted into the target one and separation of the target isomer can be conducted easily.Type: GrantFiled: June 11, 2001Date of Patent: April 22, 2003Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Shinji Kamihara, Kazuaki Kanai, Shigeru Noguchi, Hirofumi Terasawa, Hiroaki Kitaoka
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Patent number: 6545151Abstract: The present invention relates to a novel taxol derivative having an antitumor-activity which is represented by formula (1). [In the formula (I), R1: a phenyl group, R2: an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group or an alkoxyl group, R3: a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxyl group, a group —O—R31, an acyloxy group or a group —O—CO—R31 (in which R31: an alkylamino group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group), R4 and R5: a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, Z1: a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z2: a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z3: an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group].Type: GrantFiled: January 16, 2001Date of Patent: April 8, 2003Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Hirofumi Terasawa, Tsunehiko Soga, Takashi Ishiyama
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Patent number: 6504029Abstract: Disclosed are a process for the preparation of a compound represented by the formula (1), which comprises treating a compound represented by the formula (2) with methanesulfonic acid and then subjecting the thus-treated compound to recrystallization; and Compound (1) so obtained. This Compound (1) is free of hygroscopicity, excellent in filterability and solubility and easy in handling. Furthermore, according to the preparation process of the present invention, an unnecessary isomer can be converted into the target one and separation of the target isomer can be conducted easily.Type: GrantFiled: July 13, 1995Date of Patent: January 7, 2003Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Shinji Kamihara, Kazuaki Kanai, Shigeru Noguchi, Hirofumi Terasawa, Hiroaki Kitaoka
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Patent number: 6407115Abstract: Accordingly, an object of this invention is to provide a hexa-cyclic compound represented by the following general formula: wherein R1 and R2 individually represent a hydrogen atom, a hydroxyl group, a C1-6 alkyl group (“C1-6 alkyl group means an alkyl group having 1 to 6 carbon atoms. Hereinafter defined in the same manner.) The present inventors have conducted extensive studies for the purpose of obtaining camptothecin derivatives with more excellent activity and higher safety, as well as excellent characteristics required for a drug to be administered, and found that hexa-cyclic compounds obtained by the addition of a water-soluble ring to camptothecin had characteristics superior to camptothecin. This finding has led to the completion of this invention.Type: GrantFiled: May 26, 1995Date of Patent: June 18, 2002Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki, Kouichi Uoto
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Publication number: 20010041796Abstract: The present invention relates to a novel taxol derivative having an antitumor-activity which is represented by formula (1).Type: ApplicationFiled: January 16, 2001Publication date: November 15, 2001Inventors: Hirofumi Terasawa, Tsunehiko Soga, Takashi Ishiyma
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Publication number: 20010034446Abstract: Disclosed are a process for the preparation of a compound represented by the formula (1), which comprises treating a compound represented by the formula (2) with methanesulfonic acid and then subjecting the thus-treated compound to recrystallization; and Compound (1) so obtained.Type: ApplicationFiled: June 11, 2001Publication date: October 25, 2001Applicant: DAIICHI PHARMACEUTICAL CO., LTD.Inventors: Shinji Kaminhara, Kazuaki Kanai, Shigeru Noguchi, Hirofumi Terasawa, Hiroaki Kitaoka
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Patent number: 6211363Abstract: The present invention relates to a novel taxol derivative having an antitumor-activity which is represented by formula (1). [In the formula (I), R1: a phenyl group, R2: an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group or an alkoxyl group, R3: a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxyl group, a group —O—R31, an acyloxy group or a group —O—CO—R31, (in which R31: an alkylamino group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group), R4 and R5: a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, Z1: a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z2: a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z3: an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group].Type: GrantFiled: February 25, 2000Date of Patent: April 3, 2001Assignee: Daiichi Pharamaceutical Co., Ltd.Inventors: Hirofumi Terasawa, Tsunehiko Soga, Takashi Ishiyama
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Patent number: 6075140Abstract: The present invention relates to a novel taxol derivative having an antitumor activity which is represented by formula (1). ##STR1## [In the formula (I), R.sup.1 : a phenyl group, R.sup.2 : an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group or an alkoxyl group, R.sup.3 : a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxyl group, a group --O--R.sup.31, an acyloxy group or a group --O--CO--R.sup.31, (in which R.sup.31 : an alkylamino group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group), R.sup.4 and R.sup.5 : a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, Z.sup.1 : a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z.sup.2 : a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group, Z.sup.3 : an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group].Type: GrantFiled: February 5, 1998Date of Patent: June 13, 2000Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Hirofumi Terasawa, Tsunehiko Soga, Takashi Ishiyama
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Patent number: 5834476Abstract: A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound by the condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumour activity and a high degree of safety, and can be applied as an antitumour medicine for curing tumors of various kinds.Type: GrantFiled: December 12, 1997Date of Patent: November 10, 1998Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki, Kouichi Uoto
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Patent number: 5770605Abstract: A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound by the condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumor activity and a high degree of safety, and can be applied as an antitumor medicine for curing tumors of various kinds.Type: GrantFiled: March 3, 1997Date of Patent: June 23, 1998Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki, Kouichi Uoto
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Patent number: 5767296Abstract: A novel taxol derivative having the formula (I), in which the 10-position is modified to have a carbon-carbon bond, is disclosed. The taxol derivative of the present invention has an antitumor activity.Type: GrantFiled: December 6, 1996Date of Patent: June 16, 1998Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Hirofumi Terasawa, Tsunehiko Soga, Kiyoshi Nakayama
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Patent number: 5658920Abstract: A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound by the condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumor activity and a high degree of safety, and can be applied as an antitumor medicine for curing tumors of various kinds.Type: GrantFiled: May 31, 1995Date of Patent: August 19, 1997Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki, Kouichi Uoto
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Patent number: 5637770Abstract: A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound by the condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumour activity and a high degree of safety, and can be applied as an antitumour medicine for curing tumors of various kinds.Type: GrantFiled: May 31, 1995Date of Patent: June 10, 1997Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki, Kouichi Uoto
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Patent number: 5061795Abstract: A novel hexa-cyclic compound, a derivative of camptothecin, of the general formura: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound through Friedlaender reaction. It has an excellent antitumour activity and a high degree of safety, and can be applied as an antitumour medicine for curing tumors of various kinds.Type: GrantFiled: December 27, 1989Date of Patent: October 29, 1991Assignees: Daiichi Pharmaceutical Co., Ltd., Kabushiki Kaisha Yakult HonshaInventors: Hiroaki Tagawa, Masamichi Sugimori, Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki