Patents by Inventor Tatsuya Oyama

Tatsuya Oyama 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: 20210040263
    Abstract: The purpose of the present invention is to provide a high temperature/humidity resistant polycarbonate resin without using bisphenol A as a raw material. The present invention relates to a polycarbonate resin comprising the repeating units of formulas (1), (2) and (3), wherein the content of the repeating unit of formula (3) is 5 mol % to 50 mol %, and the refractive index is 1.570 to 1.600. {In formula (1), R1 and R2 each represent a hydrogen atom or a C1-10 hydrocarbon group.} {In formula (3), n ranges from 0 to 8, and the R symbols are each selected from C1-3 alkyl groups}.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 11, 2021
    Applicant: TEIJIN LIMITED
    Inventors: Tatsuya OYAMA, Kazuyoshi OGASAWARA, Atsushi UMEKI, Keisuke SATO, Manabu MATSUI
  • Publication number: 20210002420
    Abstract: The purpose of the present invention is to provide a polyester resin or polyester carbonate resin, which has high refractive index, while achieving an excellent balance between heat resistance and low birefringence. A polyester resin or a polyester carbonate resin, which contains repeating units represented by the following formulae (1) and (2), and wherein the ratio of the repeating unit represented by formula (1) to the repeating unit represented by formula (2) is 15:85 to 85:15.
    Type: Application
    Filed: March 11, 2019
    Publication date: January 7, 2021
    Applicant: TEIJIN LIMITED
    Inventors: Kyosuke YAMADA, Manabu MATSUI, Takatsune YANAGIDA, Kazuyoshi OGASAWARA, Kazunori NUNOME, Keisuke SATO, Tatsuya OYAMA
  • Patent number: 9989723
    Abstract: An optical fiber ribbon comprises a plurality of optical fiber strands that are arranged side-by-side in one direction and integrated. The optical fiber ribbon comprises a plurality of optical fiber strands that are bonded in parallel. In the optical fiber ribbon, the adjacent optical fiber strands are bonded using a bonding section in which the same are continuously bonded along the entire length thereof and a bonding section in which the same are intermittently bonded at prescribed intervals. In other words, either of the bonding sections is formed between the adjacent optical fiber strands.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: June 5, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yutaka Hoshino, Noboru Okada, Tatsuya Oyama
  • Publication number: 20170299829
    Abstract: An optical fiber ribbon comprises a plurality of optical fiber strands that are arranged side-by-side in one direction and integrated. The optical fiber ribbon comprises a plurality of optical fiber strands that are bonded in parallel. In the optical fiber ribbon, the adjacent optical fiber strands are bonded using a bonding section in which the same are continuously bonded along the entire length thereof and a bonding section in which the same are intermittently bonded at prescribed intervals. In other words, either of the bonding sections is formed between the adjacent optical fiber strands.
    Type: Application
    Filed: January 13, 2015
    Publication date: October 19, 2017
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yutaka Hoshino, Noboru Okada, Tatsuya Oyama
  • Patent number: 8835446
    Abstract: The present invention relates to novel quinazoline derivatives with less skin irritation and an excellent action of strongly suppressing scratching behavior, and pharmaceutical compositions containing a quinazoline derivative as an active ingredient. The present invention is directed to the quinazoline derivatives represented by the general formula [1] or pharmaceutically acceptable salts thereof. In the general formula [1], R1 represents hydrogen or the like; R2 represents hydrogen or the like; R3 and R4 are the same or different and represent hydrogen, alkyl, alkoxy or halogen; R5 is combined with R6 to represent alkylene or represents hydrogen, hydroxy, alkyl, phenyl or alkoxy; R6 represents alkyl, cycloalkyl, phenyl, a 5- to 10-membered aromatic heterocyclic group containing one to three heteroatoms selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, or —N(R6-1)(R6-2).
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: September 16, 2014
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Masahiko Okano, Tatsuya Oyama
  • Publication number: 20130225613
    Abstract: The present invention relates to novel quinazoline derivatives with less skin irritation and an excellent action of strongly suppressing scratching behavior, and pharmaceutical compositions containing a quinazoline derivative as an active ingredient. The present invention is directed to the quinazoline derivatives represented by the general formula [1] or pharmaceutically acceptable salts thereof. In the general formula [1], R1 represents hydrogen or the like; R2 represents hydrogen or the like; R3 and R4 are the same or different and represent hydrogen, alkyl, alkoxy or halogen; R5 is combined with R6 to represent alkylene or represents hydrogen, hydroxy, alkyl, phenyl or alkoxy; R6 represents alkyl, cycloalkyl, phenyl, a 5- to 10-membered aromatic heterocyclic group containing one to three heteroatoms selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, or —N(R6-1) (R6-2).
    Type: Application
    Filed: April 2, 2013
    Publication date: August 29, 2013
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Masahiko OKANO, Tatsuya OYAMA
  • Patent number: 8442371
    Abstract: An optical fiber cable and a tight-buffered optical fiber which suppress an increase in transmission loss in a humid and hot environment and have good manufacturability are disclosed. The tight-buffered optical fiber of the present invention comprises a glass fiber surrounded by a first coating layer and a second coating layer, the second coating layer comprising two or more layers; wherein a pull-out force is 15 N/20 mm or less in at least one pair of layers between the first coating layer and the second coating layer, or between any two layers of the second coating layer.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: May 14, 2013
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Tatsuya Oyama, Toshiaki Ozawa
  • Patent number: 8431586
    Abstract: The present invention relates to novel quinazoline derivatives with less skin irritation and an excellent action of strongly suppressing scratching behavior, and pharmaceutical compositions containing a quinazoline derivative as an active ingredient. The present invention is directed to the quinazoline derivatives represented by the general formula [1] or pharmaceutically acceptable salts thereof. In the general formula [1], R1 represents hydrogen or the like; R2 represents hydrogen or the like; R3 and R4 are the same or different and represent hydrogen, alkyl, alkoxy or halogen; R5 is combined with R6 to represent alkylene or represents hydrogen, hydroxy, alkyl, phenyl or alkoxy; R6 represents alkyl, cycloalkyl, phenyl, a 5- to 10-membered aromatic heterocyclic group containing one to three heteroatoms selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, or —N(R6-1)(R6-2).
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: April 30, 2013
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Masahiko Okano, Tatsuya Oyama
  • Patent number: 8217031
    Abstract: The present invention relates to a compound represented by formula [1] or a pharmaceutically acceptable salt thereof: In formula [1], one of X and Y is CH and the other is oxygen or sulfur; R is hydrogen, etc.; Z is hydrogen, etc.; Ar is phenyl, etc.; and n is 1 or 2 and or m is 1 or 2, excluding compounds where n is 2 and m is 2 simultaneously. Also provided is a pharmaceutical composition comprising a compound of formula [1] or a pharmaceutically acceptable salt thereof as an active ingredient. The composition is usable as an agent for the prevention or treatment of depression, panic disorder, anxiety, obsessive-compulsive disorder, chronic pain, fibromyalgia, obesity, stress urinary incontinence, and overactive bladder.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 10, 2012
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Masato Matsuoka, Tatsuya Oyama
  • Patent number: 8137425
    Abstract: An intake system (10, 20) for a vehicle internal combustion engine is provided in which a first air intake duct (16), having an air intake inlet (16a) to inhale external air, is connected to an air cleaner box (14). A second air intake duct (17, 27) is also connected to the air cleaner box. The air intake inlet is closer to the air cleaner box than the second air intake duct is. The cross section area of a second air intake duct is greater than the cross section area of the first air intake duct. The center axis of the second air intake duct at an end on the side of a second air intake opening (12, 22) intersects with the center axis of the first air intake duct at an end on the side of a first air intake opening (11).
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: March 20, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruhiko Saito, Tatsuya Oyama
  • Patent number: 7758678
    Abstract: A housing of an air cleaner has an air inlet port and an air outlet port, and incorporates an air filter. In the housing, a fuel adsorption filter is arranged downstream of the air filter in such manner as to intersect an air passage. An open portion and a sheet-like adsorption portion are vertically defined in an outer frame of the fuel adsorption filter. The adsorption portion has a fuel adsorbing function. A weir is provided in a boundary between the open portion and the adsorption portion. The weir limits air flow from the upstream side of the adsorption portion to the upstream side of the open portion. A flow straightening plate having a flow straightening function is provided in the open portion.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: July 20, 2010
    Assignees: Toyota Boshoku Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Yoshida, Tatsuya Oyama, Haruhiko Saito, Tohru Ohba, Shinichi Kamiya, Masaki Aihara, Yoichi Ishihara
  • Patent number: 7718663
    Abstract: An object of the present invention is to provide an antipruritic agent having a novel action mechanism. The present invention provides an antipruritic agent comprising a compound represented by the following general formula (1): wherein R1 represents a hydrogen atom or alkyl; the ring Q represents a cyclohexylene group or a phenylene group; A1 and A2 represent a single bond or an alkylene group; E represents —NHCO—; A3 represents a single bond or a divalent saturated or unsaturated aliphatic hydrocarbon group; R3 represents a non-cyclic aliphatic hydrocarbon group; and R4 and R5 are the same or different and each represents a hydrogen atom or alkyl, or a pharmaceutically acceptable salt thereof as an active ingredient.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: May 18, 2010
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Masahiko Okano, Tatsuya Oyama
  • Publication number: 20100086270
    Abstract: An optical fiber cable and a tight-buffered optical fiber which suppress an increase in transmission loss in a humid and hot environment and have good manufacturability are disclosed. The tight-buffered optical fiber of the present invention comprises a glass fiber surrounded by a first coating layer and a second coating layer, the second coating layer comprising two or more layers; wherein a pull-out force is 15N/20 mm or less in at least one pair of layers between the first coating layer and the second coating layer, or between any two layers of the second coating layer.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 8, 2010
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Tatsuya OYAMA, Toshiaki OZAWA
  • Publication number: 20100083928
    Abstract: An intake system (10, 20) for a vehicle internal combustion engine is provided in which a first air intake duct (16), having an air intake inlet (16a) to inhale external air, is connected to an air cleaner box (14). A second air intake duct (17, 27) is also connected to the air cleaner box. The air intake inlet is closer to the air cleaner box than the second air intake duct is. The cross section area of a second air intake duct is greater than the cross section area of the first air intake duct. The center axis of the second air intake duct at an end on the side of a second air intake opening (12, 22) intersects with the center axis of the first air intake duct at an end on the side of a first air intake opening (11).
    Type: Application
    Filed: January 29, 2008
    Publication date: April 8, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Haruhiko Saito, Tatsuya Oyama
  • Publication number: 20100048537
    Abstract: The present invention relates to a compound represented by formula [1] or a pharmaceutically acceptable salt thereof: In formula [1], one of X and Y is CH and the other is oxygen or sulfur; R is hydrogen, etc.; Z is hydrogen, etc.; Ar is phenyl, etc.; and n is 1 or 2 and or m is 1 or 2, excluding compounds where n is 2 and m is 2 simultaneously. Also provided is a pharmaceutical composition comprising a compound of formula [1] or a pharmaceutically acceptable salt thereof as an active ingredient. The composition is usable as an agent for the prevention or treatment of depression, panic disorder, anxiety, obsessive-compulsive disorder, chronic pain, fibromyalgia, obesity, stress urinary incontinence, and overactive bladder.
    Type: Application
    Filed: March 28, 2008
    Publication date: February 25, 2010
    Applicant: Nippon Shinyaku Co., Ltd.
    Inventors: Masato Matsuoka, Tatsuya Oyama
  • Publication number: 20100022566
    Abstract: The present invention relates to novel quinazoline derivatives with less skin irritation and an excellent action of strongly suppressing scratching behavior, and pharmaceutical compositions containing a quinazoline derivative as an active ingredient. The present invention is directed to the quinazoline derivatives represented by the general formula [1] or pharmaceutically acceptable salts thereof. In the general formula [1], R1 represents hydrogen or the like; R2 represents hydrogen or the like; R3 and R4 are the same or different and represent hydrogen, alkyl, alkoxy or halogen; R5 is combined with R6 to represent alkylene or represents hydrogen, hydroxy, alkyl, phenyl or alkoxy; R6 represents alkyl, cycloalkyl, phenyl, a 5- to 10-membered aromatic heterocyclic group containing one to three heteroatoms selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, or —N(R6-1)(R6-2).
    Type: Application
    Filed: October 3, 2006
    Publication date: January 28, 2010
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Masahiko Okano, Tatsuya Oyama
  • Publication number: 20080257160
    Abstract: A housing of an air cleaner has an air inlet port and an air outlet port, and incorporates an air filter. In the housing, a fuel adsorption filter is arranged downstream of the air filter in such manner as to intersect an air passage. An open portion and a sheet-like adsorption portion are vertically defined in an outer frame of the fuel adsorption filter. The adsorption portion has a fuel adsorbing function. A weir is provided in a boundary between the open portion and the adsorption portion. The weir limits air flow from the upstream side of the adsorption portion to the upstream side of the open portion. A flow straightening plate having a flow straightening function is provided in the open portion.
    Type: Application
    Filed: April 16, 2008
    Publication date: October 23, 2008
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro YOSHIDA, Tatsuya OYAMA, Haruhiko SAITO, Tohru OHBA, Shinichi KAMIYA, Masaki AIHARA, Yoichi ISHIHARA
  • Publication number: 20080103163
    Abstract: The present invention relates to an antipruritic agent comprising a nociceptin antagonist as an active ingredient. The nociceptin antagonist can be used as a preventive or remedy for diseases associated with itching (for example, atopic dermatitis and urticaria), local pruritus cutaneous caused by insect excretion and secretion, nodular prurigo, kidney dialysis, diabetes, blood disease, liver disease, kidney disease, incretion and metabolic disorder, viscera malignant tumor, hyperthyroidism, autoimmune disease, multiple sclerosis, neurologic disease, psychoneurosis, allergic conjunctivitis, spring catarrh, atopic keratoconjunctivitis, or itching caused by excess use of laxuries and drugs because it has excellent scratching behavior suppressing effect, that is, antiitching effect and antipruritic effect.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 1, 2008
    Inventors: Tatsuya Oyama, Kyoko Sakano
  • Publication number: 20080103162
    Abstract: The present invention relates to an antipruritic agent comprising a nociceptine antagonist as an active ingredient. The nociceptine antagonist can be used as a preventive or remedy for diseases associated with itching (for example, atopic dermatitis and urticaria), local pruritus cutaneous caused by insect excretion and secretion, nodular prurigo, kidney dialysis, diabetes, blood disease, liver disease, kidney disease, incretion and metabolic disorder, viscera malignant tumor, hyperthyroidism, autoimmune disease, multiple sclerosis, neurologic disease, psychoneurosis, allergic conjunctivitis, spring catarrh, atopic keratoconjunctivitis, or itching caused by excess use of laxuries and drugs because it has excellent scratching behavior suppressing effect, that is, antiitching effect and antipruritic effect.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 1, 2008
    Inventors: Tatsuya Oyama, Kyoko Sakana
  • Patent number: 7163921
    Abstract: The present invention to novel nociceptin receptor agonists which are peptide derivatives represented by the following general formula (1): (in which A is alkylene, —CH2)nCO— or a group expressed by the following formula (2) or (3): wherein n represents an integer of 1 to 8; X and Y are same or different and each represents —CONH— or —CH2NH—; R1, R2 and R3 are same or different and each represents alkyl, aryl or heteroaryl; Z represents —CON(R4)R5 or —CH2N(R4)R5; R4 and R5 are same or different and each represents hydrogen, alkyl, aryl or heteroaryl) or a pharmaceutically acceptable salt thereof. A pharmaceutical composition according to the present invention is useful as a nociceptin receptor agonist.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: January 16, 2007
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Kouichi Ishiyama, Tomohiro Terada, Tatsuya Oyama, Tadaaki Ohgi