Patents by Inventor Yoshimasa Imamura
Yoshimasa Imamura 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: 11945336Abstract: An information creation apparatus includes a processor configured to, in a case where priorities of power supply are set to power supply targets, set upper limits of power storage remaining amounts of the power supply targets such that the upper limit of the power storage remaining amount of a power supply target with a lower priority is set to a value larger than a reference value.Type: GrantFiled: July 14, 2021Date of Patent: April 2, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshimasa Watanabe, Kizuku Yamada, Masaki Ito, Sakiko Yoshida, Yuki Takahashi, Tomonori Imamura
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Patent number: 9447090Abstract: An excellent drug for treating or preventing cardiovascular diseases, based on cGMP production enhancing action due to soluble guanylate cyclase activating action, is provided. It was found that imidazopyridine compounds having a carbamoyl group at the 3-position and a substituent bonded at the 8-position via an oxygen atom in an imidazo[1,2-a]pyridine skeleton exhibits a cGMP production enhancing action by a potent soluble guanylate cyclase activating action, and is useful as a drug for treating or preventing various soluble guanylate cyclase-related cardiovascular diseases, thereby completing the present invention.Type: GrantFiled: November 26, 2013Date of Patent: September 20, 2016Assignee: Astellas Pharma Inc.Inventors: Yuji Koga, Kyoichi Maeno, Ippei Sato, Yoshimasa Imamura, Takeshi Hanazawa, Maiko Iida, Kazuhiko Ohne, Kenichiro Imamura, Tsubasa Watanabe, Eisuke Nozawa, Hiroshi Shibata
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Patent number: 9284295Abstract: The purpose is to provide a compound which has an intestinal phosphate transporter (NPT-IIb) inhibitory action and is useful as an active ingredient of an agent for treating and/or preventing hyperphosphatemia. A tetrahydrobenzothiophene compound of the following formula (I) has NPT-IIb inhibitory action and can be used as an agent for treating and/or preventing hyperphosphatemia: wherein, R1 represents —O-lower alkyl, -lower alkylene-phenyl, or the like; R2 and R3 are the same as or different from each other and represent H, lower alkyl, cycloalkyl, aryl, heteroaryl or the like, or, R2 and R3 may be combined with a nitrogen atom to which they bind to form 5- to 7-membered saturated cyclic amino; R4's are the same as or different from each other and represent halogen, lower alkyl; and n represents 0 to 2.Type: GrantFiled: March 28, 2014Date of Patent: March 15, 2016Assignee: Astellas Pharma Inc.Inventors: Shunichiro Hachiya, Masanori Miura, Yoshimasa Imamura, Daisuke Kaga, Ippei Sato, Hiroyuki Moritomo, Koji Kato, Kazuhiro Terai, Yoh Terada
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Publication number: 20140329802Abstract: The purpose is to provide a compound which has an intestinal phosphate transporter (NPT-IIb) inhibitory action and is useful as an active ingredient of an agent for treating and/or preventing hyperphosphatemia. A tetrahydrobenzothiophene compound of the following formula (I) has NPT-IIb inhibitory action and can be used as an agent for treating and/or preventing hyperphosphatemia: wherein, R1 represents —O-lower alkyl, -lower alkylene-phenyl, or the like; R2 and R3 are the same as or different from each other and represent H, lower alkyl, cycloalkyl, aryl, heteroaryl or the like, or, R2 and R3 may be combined with a nitrogen atom to which they bind to form 5- to 7-membered saturated cyclic amino; R4's are the same as or different from each other and represent halogen, lower alkyl; and n represents 0 to 2.Type: ApplicationFiled: March 28, 2014Publication date: November 6, 2014Applicant: Astellas Pharma Inc.Inventors: Shunichiro HACHIYA, Masanori Miura, Yoshimasa Imamura, Daisuke Kaga, Ippei Sato, Hiroyuki Moritomo, Koji Kato, Kazuhiro Terai, Yoh Terada
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Patent number: 8729068Abstract: The purpose is to provide a compound which has an intestinal phosphate transporter (NPT-IIb) inhibitory action and is useful as an active ingredient of an agent for treating and/or preventing hyperphosphatemia. A tetrahydrobenzothiophene compound of the following formula (I) has NPT-IIb inhibitory action and can be used as an agent for treating and/or preventing hyperphosphatemia: wherein, R1 represents —O-lower alkyl, -lower alkylene-phenyl, or the like; R2 and R3 are the same as or different from each other and represent H, lower alkyl, cycloalkyl, aryl, heteroaryl or the like, or, R2 and R3 may be combined with a nitrogen atom to which they bind to form 5- to 7-membered saturated cyclic amino; R4's are the same as or different from each other and represent halogen, lower alkyl; and n represents 0 to 2.Type: GrantFiled: October 26, 2012Date of Patent: May 20, 2014Assignee: Astellas Pharma Inc.Inventors: Shunichiro Hachiya, Masanori Miura, Yoshimasa Imamura, Daisuke Kaga, Ippei Sato, Hiroyuki Moritomo, Koji Kato, Kazuhiro Terai, Yoh Terada
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Publication number: 20140088080Abstract: [Problem] An excellent drug for treating or preventing cardiovascular diseases, based on cGMP production enhancing action due to soluble guanylate cyclase activating action, is provided. [Means for Solution] It was found that imidazopyridine compounds having a carbamoyl group at the 3-position and a substituent bonded at the 8-position via an oxygen atom in an imidazo[1,2-a]pyridine skeleton exhibits a cGMP production enhancing action by a potent soluble guanylate cyclase activating action, and is useful as a drug for treating or preventing various soluble guanylate cyclase-related cardiovascular diseases, thereby completing the present invention.Type: ApplicationFiled: November 26, 2013Publication date: March 27, 2014Applicant: ASTELLAS PHARMA INC.Inventors: Yuji KOGA, Kyoichi MAENO, Ippei SATO, Yoshimasa IMAMURA, Takeshi HANAZAWA, Maiko IIDA, Kazuhiko OHNE, Kenichiro IMAMURA, Tsubasa WATANABE, Eisuke NOZAWA, Hiroshi SHIBATA
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Publication number: 20130029973Abstract: A compound has an intestinal phosphate transporter (NPT-IIb) inhibitory action and is useful as an active ingredient of an agent for treating hyperphosphatemia, preventing hyperphosphatemia, or both. The compound is a tetrahydrobenzothiophene compound. A pharmaceutical composition for treating hyperphosphatemia includes the compound or salt thereof. A method of treating hyperphosphatemia includes administering to a subject an effective amount of the compound or salt thereof.Type: ApplicationFiled: April 27, 2011Publication date: January 31, 2013Applicant: ASTELLAS PHARMA INC.Inventors: Shunichiro Hachiya, Masanori Miura, Yoshimasa Imamura, Daisuke Kaga, Ippei Sato, Hiroyuki Moritomo, Koji Kato, Kazuhiro Terai, Yoh Terada
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Patent number: 8273745Abstract: The present invention relates to a novel compound or a salt thereof, which is useful as a CRTH2 antagonist, especially as a medicament for disorder that participates eosinophil, for example, allergic disorder such as asthma, allergic rhinitis, allergic dermatitis, conjunctival inflammation, hives, eosinophilic bronchitis, food allergy, inflammation of the nasal sinuses, multiple sclerosis, angiitis, or chronic obstructive pulmonary disease (COPD) and the like.Type: GrantFiled: December 13, 2007Date of Patent: September 25, 2012Assignee: Astellas Pharma IncInventors: Tadashi Terasaka, Tatsuya Zenkoh, Hisashi Hayashida, Hiroshi Matsuda, Junji Sato, Yoshimasa Imamura, Hiroshi Nagata, Norio Seki, Yoshiyuki Tenda, Mamoru Tasaki, Masahiro Takeda, Seiichiro Tabuchi, Minoru Yasuda, Kazunori Tsubaki
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Patent number: 8211919Abstract: This invention relates to novel amide derivatives and salts thereof. More particularly, it relates to novel amide derivatives and salts thereof which act as a ROCK inhibitor, to a pharmaceutical composition comprising the same and to a method of using the same therapeutically in the treatment and/or prevention of ROCK-related disease.Type: GrantFiled: August 29, 2006Date of Patent: July 3, 2012Assignee: Astellas Pharma Inc.Inventors: Kouzo Sawada, Tatsuya Zenkoh, Takeshi Terasawa, Yoshimasa Imamura, Hiroki Fukudome, Satoru Kuroda, Jun Maeda, Junko Watanabe, Hiroshi Inami, Nobuaki Takeshita
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Patent number: 7990859Abstract: The present invention relates to a packet transmission control device which controls transmission of packets to a plurality of mobile stations. A scheduling unit of the packet transmission control device according to the present invention is configured to schedule the packets to each of the plurality of mobile stations, based on an average transmission rate, a minimum guaranteed transmission rate, a scheduling frequency and capability information.Type: GrantFiled: May 10, 2005Date of Patent: August 2, 2011Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Yoshimasa Imamura, Akihito Hanaki, Takehiro Nakamura, Shinya Tanaka, Masafumi Usuda
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Patent number: 7937111Abstract: A wireless base station apparatus (100) used in a wireless communications system includes a statistical processing unit (140) that performs statistical processing on downlink radio quality information reported from a wireless communications terminal device; a radio quality information offsetting unit (160) that adjusts the statistically processed downlink radio quality information based on a downlink transmission confirmation (ACK/NACK/DTX) message transmitted from the wireless communications terminal device and a required downlink quality; a transport format determination unit (170) that determines a downlink transport format based on the statistically processed radio quality information or the offset-adjusted radio quality information; and a transmitting unit (111) that transmits a downlink channel with the determined downlink transport format.Type: GrantFiled: October 16, 2007Date of Patent: May 3, 2011Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Masafumi Usuda, Yoshimasa Imamura, Akihito Hanaki
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Patent number: 7904102Abstract: In a mobile communication system, the information on a downlink DCH actually not used is regarded as removable from the construction target of a TFI and a TFCI, so that a discrepancy of the perception regarding the TFI and the TFCI is not occurred between a base station and a UE (User Equipment). An indicator information in terms of an “Unidirectional DCH Indicator” is generated in an Indicator processing portion of a RNC so that the base station can remove the information regarding the downlink DCH actually not used from the construction target of the TFI and the TFCI, and the information, which is included in the NBAP message, is transmitted to the base station from the NBAP message composition portion. When, at the NBAP message analyzing portion of the base station, it is determined that the “Unidirectional DCH Indicator” is included in this message, the information regarding the downlink DCH actually not used in a TFCI construction portion is removed from the construction target of the TFI and the TFCI.Type: GrantFiled: August 18, 2004Date of Patent: March 8, 2011Assignee: NEC CorporationInventors: Naoto Itaba, Yoshimasa Imamura, Mayu Yamada
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Patent number: 7653078Abstract: A packet transmission control apparatus performs transmission control of packets to a plurality of mobile stations. The packet transmission control apparatus includes a scheduler configured to perform scheduling of the packets in accordance with capabilities of the mobile stations.Type: GrantFiled: February 23, 2005Date of Patent: January 26, 2010Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Yoshimasa Imamura, Takehiro Nakamura
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Publication number: 20100009991Abstract: The present invention relates to a novel compound or a salt thereof, which is useful as a CRTH2 antagonist, especially as a medicament for disorder that participates eosinophil, for example, allergic disorder such as asthma, allergic rhinitis, allergic dermatitis, conjunctival inflammation, hives, eosinophilic bronchitis, food allergy, inflammation of the nasal sinuses, multiple sclerosis, angiitis, or chronic obstructive pulmonary disease (COPD) and the like.Type: ApplicationFiled: December 13, 2007Publication date: January 14, 2010Applicant: Astellas Pharma Inc.Inventors: Tadashi Terasaka, Tatsuya Zenkoh, Hisashi Hayashida, Hiroshi Matsuda, Junji Sato, Yoshimasa Imamura, Hiroshi Nagata, Norio Seki, Yoshiyuki Tenda, Mamoru Tasaki, Masahiro Takeda, Seiichiro Tabuchi, Minoru Yasuda, Kazunori Tsubaki
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Patent number: 7623489Abstract: A packet transmission control apparatus is configured to perform transmission control of packets to a plurality of mobile stations. The packet transmission control apparatus includes an acquirer configured to acquire a scheduling frequency which shows a frequency of scheduling of packets to each mobile station in a predetermined period, and a scheduler configured to control scheduling of packets to each mobile station in accordance with an acquired scheduling frequency.Type: GrantFiled: December 23, 2004Date of Patent: November 24, 2009Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Takehiro Nakamura, Akihito Hanaki, Yoshimasa Imamura, Shinya Tanaka
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Publication number: 20090105231Abstract: This invention relates to novel amide derivatives and salts thereof. More particularly, it relates to novel amide derivatives and salts thereof which act as a ROCK inhibitor, to a pharmaceutical composition comprising the same and to a method of using the same therapeutically in the treatment and/or prevention of ROCK-related disease.Type: ApplicationFiled: August 29, 2006Publication date: April 23, 2009Applicant: ASTELLAS PHARMA INC.Inventors: Kouzo Sawada, Tatsuya Zenkoh, Takeshi Terasawa, Yoshimasa Imamura, Hiroki Fukudome, Satoru Kuroda, Jun Maeda, Junko Watanabe, Hiroshi Inami, Nobuaki Takeshita
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Patent number: 7477604Abstract: A packet communications system which transmits a packet at a predetermined transmission rate includes a packet size controller configured to change a size of the packet in accordance with available space of a transmission buffer storing the packet, when the predetermined transmission rate is changed.Type: GrantFiled: May 11, 2004Date of Patent: January 13, 2009Assignee: NTT DoCoMo, Inc.Inventors: Sung Uk Moon, Minami Ishii, Takehiro Nakamura, Masafumi Usuda, Yasuhiro Kato, Yoshimasa Imamura
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Patent number: 7460474Abstract: A packet transmission control apparatus which performs transmission control of packets to a plurality of mobile stations includes an acquirer configured to acquire an average transmission rate of packets to each of the mobile stations and a guaranteed transmission rate of the packets; and a scheduler configured to perform scheduling to transmit packets to a specific mobile station preferentially, when an average transmission rate of the packets to the specific mobile station approaches the guaranteed transmission rate.Type: GrantFiled: October 21, 2004Date of Patent: December 2, 2008Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Yoshimasa Imamura, Akihito Hanaki, Takehiro Nakamura, Shinya Tanaka, Masafumi Usuda
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Patent number: 7444169Abstract: A wireless base station apparatus (100) used in a wireless communications system includes a statistical processing unit (140) that performs statistical processing on downlink radio quality information reported from a wireless communications terminal device; a radio quality information offsetting unit (160) that adjusts the statistically processed downlink radio quality information based on a downlink transmission confirmation (ACK/NACK/DTX) message transmitted from the wireless communications terminal device and a required downlink quality; a transport format determination unit (170) that determines a downlink transport format based on the statistically processed radio quality information or the offset-adjusted radio quality information; and a transmitting unit (111) that transmits a downlink channel with the determined downlink transport format.Type: GrantFiled: April 27, 2005Date of Patent: October 28, 2008Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Masafumi Usuda, Yoshimasa Imamura, Akihito Hanaki
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Publication number: 20080069046Abstract: The present invention relates to a packet transmission control device which controls transmission of packets to a plurality of mobile stations. A scheduling unit of the packet transmission control device according to the present invention is configured to schedule the packets to each of the plurality of mobile stations, based on an average transmission rate, a minimum guaranteed transmission rate, a scheduling frequency and capability information.Type: ApplicationFiled: May 10, 2005Publication date: March 20, 2008Applicant: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Yoshimasa Imamura, Akihito Hanaki, Takehiro Nakamura, Shinya Tanaka, Masafumi Usuda