Patents by Inventor Yasuhiro Nakagami

Yasuhiro Nakagami 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: 20240108205
    Abstract: A catheter inserter for inserting a balloon catheter into an insertion opening of an endoscope provided with a valve. The balloon catheter includes a balloon attached on a distal end side of a shaft and configured to be expanded by an expansion fluid supplied from a proximal end side of the shaft, and an elastic band wound around an outer periphery of an intermediate portion of the balloon and configured to limit expansion of the balloon at the intermediate portion. The catheter inserter includes, on a distal end side thereof, a restrained member support structure configured to support a portion of an outer periphery of the elastic band. A proximal end support portion supporting a proximal end portion of the elastic band from a proximal end side is provided at a proximal end portion of the restrained member support structure.
    Type: Application
    Filed: August 8, 2023
    Publication date: April 4, 2024
    Inventors: Daisuke YOSHIKAWA, Yasuhiro OKAWA, Itsuki NAKAGAMI
  • Patent number: 10808006
    Abstract: The present invention relates to a terpenoid derivative that has the ability to activate the Keap1/Nrf2/ARE signaling pathway and is excellent in anti-inflammatory action and cytoprotective action, and a sustained-release pharmaceutical composition effective for the treatment and prevention of a posterior eye disease caused by oxidative stress, comprising the terpenoid derivative as an active ingredient. The present invention provides a local administration-type sustained-release pharmaceutical composition for the treatment or prevention of a posterior eye disease, comprising the terpenoid derivative of the present invention as an active ingredient, wherein the sustained-release pharmaceutical composition maintains a pharmacological action thereof for 1 week or longer by the sustained release of the terpenoid derivative under physiological conditions and has a base material administrable to the vitreous body and a form administrable to the vitreous body.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 20, 2020
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yuji Kasuya, Yasuhiro Nakagami, Emiko Hatano, Tatsuya Inoue, Kazuhiro Yoshida, Satoshi Komoriya, Yoko Murakami, Masaru Iwasaki, Atsunobu Sakamoto, Kayoko Masuda, Masako Minami, Mayumi Iizuka, Yasunori Ono, Takashi Ohnuki
  • Publication number: 20190233466
    Abstract: The present invention relates to a terpenoid derivative that has the ability to activate the Keap1/Nrf2/ARE signaling pathway and is excellent in anti-inflammatory action and cytoprotective action, and a sustained-release pharmaceutical composition effective for the treatment and prevention of a posterior eye disease caused by oxidative stress, comprising the terpenoid derivative as an active ingredient. The present invention provides a local administration-type sustained-release pharmaceutical composition for the treatment or prevention of a posterior eye disease, comprising the terpenoid derivative of the present invention as an active ingredient, wherein the sustained-release pharmaceutical composition maintains a pharmacological action thereof for 1 week or longer by the sustained release of the terpenoid derivative under physiological conditions and has a base material administrable to the vitreous body and a form administrable to the vitreous body.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 1, 2019
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yuji Kasuya, Yasuhiro Nakagami, Emiko Hatano, Tatsuya Inoue, Kazuhiro Yoshida, Satoshi Komoriya, Yoko Murakami, Masaru Iwasaki, Atsunobu Sakamoto, Kayoko Masuda, Masako Minami, Mayumi Iizuka, Yasunori Ono, Takashi Ohnuki
  • Patent number: 10253060
    Abstract: It is intended to provide a novel terpenoid derivative that exhibits anti-inflammatory action and a cytoprotective action by activating the Keap1/Nrf2/ARE signaling pathway.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: April 9, 2019
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Satoshi Komoriya, Yasuhiro Nakagami, Emiko Hatano, Takashi Ohnuki, Kayoko Masuda, Mayumi Iizuka, Yasunori Ono
  • Patent number: 10208082
    Abstract: The present invention relates to a terpenoid derivative that has the ability to activate the Keap1/Nrf2/ARE signaling pathway and is excellent in anti-inflammatory action and cytoprotective action, and a sustained-release pharmaceutical composition effective for the treatment and prevention of a posterior eye disease caused by oxidative stress, comprising the terpenoid derivative as an active ingredient. The present invention provides a local administration-type sustained-release pharmaceutical composition for the treatment or prevention of a posterior eye disease, comprising the terpenoid derivative of the present invention as an active ingredient, wherein the sustained-release pharmaceutical composition maintains a pharmacological action thereof for 1 week or longer by the sustained release of the terpenoid derivative under physiological conditions and has a base material administrable to the vitreous body and a form administrable to the vitreous body.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: February 19, 2019
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yuji Kasuya, Yasuhiro Nakagami, Emiko Hatano, Tatsuya Inoue, Kazuhiro Yoshida, Satoshi Komoriya, Yoko Murakami, Masaru Iwasaki, Atsunobu Sakamoto, Kayoko Masuda, Masako Minami, Mayumi Iizuka, Yasunori Ono, Takashi Ohnuki
  • Publication number: 20180016298
    Abstract: It is intended to provide a novel terpenoid derivative that exhibits anti-inflammatory action and a cytoprotective action by activating the Keap1/Nrf2/ARE signaling pathway.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 18, 2018
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Satoshi Komoriya, Yasuhiro Nakagami, Emiko Hatano, Takashi Ohnuki, Kayoko Masuda, Mayumi Iizuka, Yasunori Ono
  • Patent number: 9796752
    Abstract: It is intended to provide a novel terpenoid derivative that exhibits anti-inflammatory action and a cytoprotective action by activating the Keap1/Nrf2/ARE signaling pathway.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 24, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Satoshi Komoriya, Yasuhiro Nakagami, Emiko Hatano, Takashi Ohnuki, Kayoko Masuda, Mayumi Iizuka, Yasunori Ono
  • Publication number: 20170260228
    Abstract: The present invention relates to a terpenoid derivative that has the ability to activate the Keap1/Nrf2/ARE signaling pathway and is excellent in anti-inflammatory action and cytoprotective action, and a sustained-release pharmaceutical composition effective for the treatment and prevention of a posterior eye disease caused by oxidative stress, comprising the terpenoid derivative as an active ingredient. The present invention provides a local administration-type sustained-release pharmaceutical composition for the treatment or prevention of a posterior eye disease, comprising the terpenoid derivative of the present invention as an active ingredient, wherein the sustained-release pharmaceutical composition maintains a pharmacological action thereof for 1 week or longer by the sustained release of the terpenoid derivative under physiological conditions and has a base material administrable to the vitreous body and a form administrable to the vitreous body.
    Type: Application
    Filed: September 9, 2015
    Publication date: September 14, 2017
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yuji Kasuya, Yasuhiro Nakagami, Emiko Hatano, Tatsuya Inoue, Kazuhiro Yoshida, Satoshi Komoriya, Yoko Murakami, Masaru Iwasaki, Atsunobu Sakamoto, Kayoko Masuda, Masako Minami, Mayumi Iizuka, Yasunori Ono, Takashi Ohnuki
  • Publication number: 20160297849
    Abstract: It is intended to provide a novel terpenoid derivative that exhibits anti-inflammatory action and a cytoprotective action by activating the Keap1/Nrf2/ARE signaling pathway.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 13, 2016
    Inventors: Satoshi Komoriya, Yasuhiro Nakagami, Emiko Hatano, Takashi Ohnuki, Kayoko Masuda, Mayamu Lizuka, Yasunori Ono
  • Publication number: 20110275640
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Application
    Filed: May 10, 2011
    Publication date: November 10, 2011
    Applicant: BTG International Ltd.
    Inventors: Masaki Meguro, Tomiichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Publication number: 20110275641
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Application
    Filed: May 10, 2011
    Publication date: November 10, 2011
    Applicant: BTG International Ltd.
    Inventors: Masaki Meguro, Tomiichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Patent number: 8003645
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: August 23, 2011
    Assignee: BTG International Ltd.
    Inventors: Masaki Meguro, Tomichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Publication number: 20090286794
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Application
    Filed: July 27, 2009
    Publication date: November 19, 2009
    Applicant: BTG International Ltd.
    Inventors: Masaki Meguro, Tomiichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Publication number: 20090286809
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Application
    Filed: July 27, 2009
    Publication date: November 19, 2009
    Applicant: BTG International Ltd.
    Inventors: Masaki Meguro, Tomiichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Patent number: 7589105
    Abstract: Pharmaceutical compositions and methods of treatment are provided for treating amyloidosis, containing, as an active ingredient, at least one nitrogen-containing heteroaryl compound represented by the following general formula or a pharmacologically permitted salt thereof; together with nitrogen-containing heteroaryl derivatives, and pharmacologically permitted salts thereof: where, R1, R2, Z1-Z5, and A are as defined herein.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: September 15, 2009
    Assignee: BTG International Limited
    Inventors: Masaki Meguro, Tomiichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Publication number: 20080182846
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Application
    Filed: February 6, 2008
    Publication date: July 31, 2008
    Applicant: BTG International Limited
    Inventors: Masaki Meguro, Tomichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Publication number: 20050054732
    Abstract: The present invention relates to preventives or remedies for Alzheimer's disease, or to amyloid protein fibril-formation inhibitors, which include as an active ingredient a compound of general formula (I) below or a pharmacologically permitted salt thereof; and also to nitrogen-containing heteroaryl derivatives having specific substituents, or pharmacologically permitted salts thereof, which are valuable as preventives or remedies for Alzheimer's disease, or as amyloid protein fibril-formation inhibitors: (where, R1 and R2 are H or alkyl; Z1 and Z2 are H, alkyl, alkoxy, haloalkyl or halogeno; Z3 is alkoxy, SH, alkylthio, NH2, mono- or di-alkylamino, OH or halogeno; Z4 and Z5 are H or halogeno; and A is 4,6-pyrimidine-1,3-diyl, 1,3,5-triazine-2,6-diyl, etc).
    Type: Application
    Filed: November 25, 2002
    Publication date: March 10, 2005
    Inventors: Masaki Meguro, Tomiichiro Oda, Yasuhiro Nakagami, Shinji Marumoto, Kazuo Koyama, Isao Kaneko
  • Patent number: 6616055
    Abstract: There is provided a returnable container physical distribution system adapted to the information society and, more particularly, a returnable container physical distribution system is provided in which IC cards are attached to returnable containers for easier connection with the internet to manage the returnable containers transported between a producer, a wholesaler and/or warehouse and a retailer more efficiently.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 9, 2003
    Assignee: Yushin System Co., Ltd.
    Inventors: Kousaku Okamura, Yasuo Nakabayashi, Yasuhiro Nakagami
  • Publication number: 20020161878
    Abstract: There is provided a returnable container physical distribution system adapted to the information society and, more particularly, a returnable container physical distribution system is provided in which IC cards are attached to returnable containers for easier connection with the internet to manage the returnable containers transported between a producer, a wholesaler and/or warehouse and a retailer more efficiently.
    Type: Application
    Filed: November 26, 2001
    Publication date: October 31, 2002
    Inventors: Kousaku Okamura, Yasuo Nakabayashi, Yasuhiro Nakagami
  • Patent number: 6249660
    Abstract: In an imaging cartridge for forming images at least including a corona charging device and an object to be charged, a discharging electrode unit in the corona charging device is supported in such a manner that the electrode unit can be separately detached therefrom and installed thereto without being obstructed by the object to be charged or by a grid electrode from a side opposite to the member to be charged.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: June 19, 2001
    Assignee: Minolta Co., Ltd.
    Inventors: Kouji Matsushita, Yasuhiro Nakagami