Patents by Inventor Noboru Iwakami

Noboru Iwakami 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).

  • Patent number: 8129535
    Abstract: An alkyl ether derivative represented by the general formula: wherein each of R1 and R2 represents one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 is an alkylamino group, an amino group, a hydroxyl group or the like; the ring A is a 5-membered or 6-membered heteroaromatic ring or a benzene ring; each of m and n is an integer of 1 to 6; and p is an integer of 1 to 3, or its salt has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: March 6, 2012
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu
  • Patent number: 8119625
    Abstract: Disclosed is an agent comprising a benzothiophene alkyl ether derivative represented by the general formula below or a salt thereof: wherein R1 and R2 independently represent at least one group selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, an amino group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 represents an alkylamino group which may be substituted or an amino or hydroxyl group which may be protected; and m and n independently represent an integer ranging from 1 to 6. The agent is useful as a neurogenesis inducer or a therapeutic agent for neuropathy.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: February 21, 2012
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Noboru Iwakami, Shigeki Marubuchi, Tomohiro Okuda
  • Patent number: 8067406
    Abstract: An alkyl ether derivative represented by the following general formula [1] or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore, is useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy, retinal artery obstruction, retinal venous obstruction, macular degeneration and retinopathy of prematurity.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: November 29, 2011
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Tatsuo Kimura, Noboru Iwakami, Akihito Saitoh
  • Publication number: 20110112066
    Abstract: An alkyl ether derivative represented by the following general formula [1] or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore, is useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy, retinal artery obstruction, retinal venous obstruction, macular degeneration and retinopathy of prematurity.
    Type: Application
    Filed: January 19, 2011
    Publication date: May 12, 2011
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Tatsuo KIMURA, Noboru IWAKAMI, Akihito SAITOH
  • Patent number: 7897594
    Abstract: An alkyl ether derivative represented by the following general formula [1] or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore, is useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy, retinal artery obstruction, retinal venous obstruction, macular degeneration and retinopathy of prematurity.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: March 1, 2011
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Tatsuo Kimura, Noboru Iwakami, Akihito Saitoh
  • Publication number: 20100075941
    Abstract: An alkyl ether derivative represented by the following general formula [1] or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore, is useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy, retinal artery obstruction, retinal venous obstruction, macular degeneration and retinopathy of prematurity.
    Type: Application
    Filed: August 17, 2009
    Publication date: March 25, 2010
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Tatsuo KIMURA, Noboru IWAKAMI, Akihito SAITOH
  • Publication number: 20090209512
    Abstract: Disclosed is an agent comprising a benzothiophene alkyl ether derivative represented by the general formula below or a salt thereof: wherein R1 and R2 independently represent at least one group selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, an amino group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 represents an alkylamino group which may be substituted or an amino or hydroxyl group which may be protected; and m and n independently represent an integer ranging from 1 to 6. The agent is useful as a neurogenesis inducer or a therapeutic agent for neuropathy.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 20, 2009
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Noboru IWAKAMI, Shigeki MARUBUCHI, Tomohiro OKUDA
  • Publication number: 20090111992
    Abstract: An alkyl ether derivative represented by the general formula: wherein each of R1 and R2 represents one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 is an alkylamino group, an amino group, a hydroxyl group or the like; the ring A is a 5-membered or 6-membered heteroaromatic ring or a benzene ring; each of m and n is an integer of 1 to 6; and p is an integer of 1 to 3, or its salt has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Application
    Filed: October 17, 2008
    Publication date: April 30, 2009
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu
  • Publication number: 20090093453
    Abstract: Disclosed is an agent comprising a benzothiophene alkyl ether derivative represented by the general formula below or a salt thereof: wherein R1 and R2 independently represent at least one group selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, an amino group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 represents an alkylamino group which may be substituted or an amino or hydroxyl group which may be protected; and m and n independently represent an integer ranging from 1 to 6. The agent is useful as a neurogenesis inducer or a therapeutic agent for neuropathy.
    Type: Application
    Filed: April 24, 2007
    Publication date: April 9, 2009
    Applicant: Toyama Chemical Co., Ltd
    Inventors: Noboru Iwakami, Shigeki Marubuchi, Tomohiro Okuda
  • Patent number: 7468443
    Abstract: An alkyl ether derivative represented by the general formula: wherein each of R1 and R2 represents one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 is an alkylamino group, an amino group, a hydroxyl group or the like; the ring A is a 5-membered or 6-membered heteroaromatic ring or a benzene ring; each of m and n is an integer of 1 to 6; and p is an integer of 1 to 3, or its salt has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: December 23, 2008
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu
  • Publication number: 20060205709
    Abstract: An alkyl ether derivative represented by the following general formula [1] or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore, is useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy, retinal artery obstruction, retinal venous obstruction, macular degeneration and retinopathy of prematurity.
    Type: Application
    Filed: April 15, 2004
    Publication date: September 14, 2006
    Applicant: TOYAMA CHEMICAL CO., LTD.
    Inventors: Tatsuo Kimura, Noboru Iwakami, Akihito Saitoh
  • Publication number: 20060194781
    Abstract: An alkyl ether derivative represented by the general formula: wherein each of R1 and R2 represents one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 is an alkylamino group, an amino group, a hydroxyl group or the like; the ring A is a 5-membered or 6-membered heteroaromatic ring or a benzene ring; each of m and n is an integer of 1 to 6; and p is an integer of 1 to 3, or its salt has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Application
    Filed: May 3, 2006
    Publication date: August 31, 2006
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu
  • Patent number: 7087594
    Abstract: An alkyl ether represented by the general formula: or its salt. This compound has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 8, 2006
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu
  • Publication number: 20050070521
    Abstract: An alkyl ether derivative represented by the general formula: wherein each of R1 and R2 represents one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkenyl group, an alkenyloxy group, an amino group, an alkylsulfonyl group, an arylsulfonyl group, a carbamoyl group, a heterocyclic group, a hydroxyl group, a carboxyl group, a nitro group, an oxo group and the like; R3 is an alkylamino group, an amino group, a hydroxyl group or the like; the ring A is a 5-membered or 6-membered heteroaromatic ring or a benzene ring; each of m and n is an integer of 1 to 6; and p is an integer of 1 to 3, or its salt has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Application
    Filed: October 18, 2002
    Publication date: March 31, 2005
    Applicant: Toyama Chemical Co., LTD.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu
  • Patent number: 6797726
    Abstract: An N-alkoxyalkyl-N,N-dialkylamine derivative represented by the following general formula [1]: wherein the ring D represents a 5- or 6-membered heterocyclic ring or hydrocarbon ring; R3 and R4, which are the same or different, represent an unsubstituted or substituted alkyl, cycloalkyl or aralkyl group; and R1, R2, R5, R6, R7, R8, m and n are as defined in the specification, or a salt thereof has an anti-hypoxic activity, a nerve-protecting activity and a nerve regeneration promoting activity and is useful for the treatment of neurodegenerative diseases.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: September 28, 2004
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Akihito Saitoh, Noboru Iwakami, Masaya Nakagawa, Sumie Yamaguchi
  • Patent number: RE43676
    Abstract: An alkyl ether represented by the general formula: or its salt. This compound has activity to protect neurons, activity to accelerate nerve regeneration and activity to accelerate neurite extension and hence is useful as a therapeutic agent for diseases in central and peripheral nerves.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 18, 2012
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Akihito Saitoh, Noboru Iwakami, Tamotsu Takamatsu