Patents by Inventor Toshio Wakabayashi

Toshio Wakabayashi 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: 11952344
    Abstract: Provided is a heterocyclic compound that can have an antagonistic action on an NMD A receptor containing the NR2B subunit and that is expected to be useful as a prophylactic or therapeutic agent for depression, bipolar disorder, migraine, pain, peripheral symptoms of dementia and the like. A compound represented by the formula (I), wherein each symbol is as defined in the DESCRIPTION, or a salt thereof.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: April 9, 2024
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Yuya Oguro, Makoto Kamata, Shuhei Ikeda, Takeshi Wakabayashi, Norihito Tokunaga, Taku Kamei, Mitsuhiro Ito, Shigemitsu Matsumoto, Hirotaka Kamitani, Takaharu Hirayama, Toshio Tanaka, Hiroshi Banno, Nobuyuki Takakura, Jinichi Yonemori, Takuya Fujimoto
  • Patent number: 6233299
    Abstract: A new transmutation assembly permits an efficient transmutation of a long-lived radioactive material (long-lived FP nuclides such as technetium-99 or iodine-129) which was produced in the nuclear reactor. Wire-type members of a long-lived radioactive material comprised of metals, alloys or compounds including long-lived FP nuclides are surrounded by a moderator material and installed in cladding tubes to form FP pins. The FP pins, and nothing else, are housed in a wrapper tube to form a transmutation assembly. The wire-type members can be replaced by thin ring-type members. The transmutation assemblies can be selectively and at least partly loaded into a core region, a blanket region or a shield region of a reactor core in a fast reactor. From a viewpoint of reducing the influence on the reactor core characteristics, it is optimal to load the transmutation assemblies into the blanket region.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: May 15, 2001
    Assignee: Japan Nuclear Cycle Development Institute
    Inventor: Toshio Wakabayashi
  • Patent number: 5499276
    Abstract: Neptunium of minor actinide nuclides separated from spent fuel is added to fuel of reactor cores (inner reactor cores and/or outer reactor cores) of a fast reactor and americium of the separated minor actinide nuclides and rare earth elements are added to either or both of radial and axial blankets of the fast reactor for burning. Thus, the minor actinide nuclides with long half-lives can be burnt with the fast reactor core with the minimized effects of the rare earth elements. For a burner reactor, americium and rare earth elements may be added to shields for burning. Curium may be added together with americium and rare earth elements. Neptunium is added in amount of 2% to 5% by weight based on the weight of the fuel and the rare earth elements are added in an amount of 50% by weight or less based on the weight of the fuel. A Purex process is used to separate neptunium and a Truex process is used to separate americium and curium.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: March 12, 1996
    Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
    Inventor: Toshio Wakabayashi
  • Patent number: 5446773
    Abstract: The invention provides a heterogeneously loaded type of fast reactor core in which a reduced number of target fuel assemblies containing minor actinide nuclides are heterogeneously dispersed and loaded. A wrapper tube for each of the target fuel assemblies is of the same shape and size as a hexagonal wrapper tube for an ordinary core fuel assembly. Each of target fuel rods within the wrapper tube contains 20 to 50% of minor actinide nuclides, and has a diameter more reduced than that of an ordinary core fuel rod. The number of the ordinary core fuel rods loaded in the ordinary core fuel assembly is 271 while the number of the target fuel rods loaded in the target fuel assembly is 331 or 397. Thirty to 50 such target fuel assemblies are heterogeneously dispersed and loaded in the fast reactor core.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: August 29, 1995
    Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
    Inventor: Toshio Wakabayashi
  • Patent number: 5034414
    Abstract: A nutritional liquid emulsion for transfusion comprising of a mixture of fatty acid esters containing 20-22 carbon atoms which are contained in a purified fish oil selected from the group consisting of sardine oil, cod oil, squid oil, mackerel oil or Euphauciacea oil, of a purified soybean or safflower oil, of purified yolk lecithin or soybean lecithin and the balance water. Said nutritional liquid emulsion for transfusion is well balanced in fatty acid composition and is nutritionally valuable and also possesses antithorombotic activity and antiarteriosclerotic activity.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: July 23, 1991
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Toshio Wakabayashi, Kazuo Okamoto, Akio Kanazawa
  • Patent number: 4906631
    Abstract: Novel amide derivatives are disclosed. As examples of said amide derivatives are mentioned 1-[2-[5-(3-methoxy-4-ethoxycarbonyloxyphenyl)-2,4-pentadienoyl]-aminoethyl ]-4-benzhydroxypiperidine, 1-[2-[3-(3-methoxy-4-ethoxycarbonyloxyphenyl)-2-propenoyl]-4-benzhydroxypi peridine, 1-[3-[-(3-methoxy-4-ethoxycarbonyloxyphenyl)-2,4-pentadienoyl]aminopropyl] -4-benzhydrylpiperazine and the like. These amide derivatives are useful as antiallergic agents.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: March 6, 1990
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Shin Hattori, Makoto Takai, Kazuhiro Omori, Shinji Ozawa, Toshio Wakabayashi
  • Patent number: 4859673
    Abstract: Novel amide derivatives are disclosed. As examples of said amide derivatives are mentioned 1-[2-(5-(3-methoxy-4-benzyloxyphenyl)-2,4-pentadienoyl)aminoethyl]-4-diphe nylmethoxypiperidine, 1-[2-(5-(3-methoxy-4-pentadienoyl)aminoethyl]-4-diphenylmethoxypiperidine and 1-[2-(5-(3-methoxy-4-ethoxymethoxyphenyl)-2,4-pentadienoyl)aminoethyl]-4-d iphenylmethoxypiperidine. These amide derivatives are useful as antiallergic agents.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: August 22, 1989
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Makoto Takai, Kazuhiro Omori, Takahiro Kumonaka, Shinji Ozawa, Toshio Wakabayashi
  • Patent number: 4816486
    Abstract: Novel amide derivatives are disclosed. As examples of said amide derivatives are mentioned N-cyclohexyl-N-methyl-(2-(3-(3-methoxy-4-hydroxyphenyl)-2-(propenoylamino) -3, 5-dibromobenzyl)amine and N-cyclohexyl-N-methyl-(2-(5-(3-methoxy-4-hydroxyphenyl)-2,4-pentadienoylam ino )-3,5-dibromobenzyl)amine. These amide derivatives have a 5-lipoxygenase inhibitory activity and are useful as an antiallergic agent.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: March 28, 1989
    Assignee: Terumo Corporation
    Inventors: Makoto Takai, Noriie Itoh, Shin Hattori, Hirokazu Hasegawa, Toshio Wakabayashi
  • Patent number: 4795752
    Abstract: Novel amide derivatives are disclosed. As examples of said amide derivatives are mentioned 1-[2-[5-(3-methoxy-4-ethoxycarbonyloxyphenyl)-2,4-pentadienoyl]-aminoethyl ]-4-benzhydroxypiperidine, 1-[2-[3-(3-methoxy-4-ethoxycarbonyloxyphenyl)-2-propenoyl]aminoethyl]-4-be nzhydroxypiperidine, 1-[3-[5-(3-methoxy-4-ethoxycarbonyloxyphenyl)-2,4-pentadienoyl]aminopropyl ]-4-benzhydrylpiperazine and the like. These amide derivatives are useful as antiallergic agents.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: January 3, 1989
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Shin Hattori, Makoto Takai, Kazuhiro Omori, Shinji Ozawa, Toshio Wakabayashi
  • Patent number: 4794115
    Abstract: A method of treating or preventing hyperlipemia by administering ethanolamine derivatives. As preferable ethanolamine derivatives are mentioned N-(9,12,15,-octadecatrienoyl)-2-aminoethyl nicotinate, N-(5,8,11,14,17-eicosapentaenoyl)-2-aminoethyl nicotinate and the like. Hyperlipemia is effectively prevented or treated by administering 300-2000 mg per day of said ethanolamine derivative for adults.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: December 27, 1988
    Assignee: Terumo Corporation
    Inventors: Keiko Takahashi, Toshio Wakabayashi
  • Patent number: 4792553
    Abstract: Novel dienyl derivatives are disclosed. As examples of said diene derivative are mentioned 1-benzhydryl-4-(5-phenyl-2,4-pentadienyl)piperazine, 1-(4,4'-difluorobenzhydryl)-4-(5-phenyl-2,4-pentadienyl)piperazine, 1-benzhydryl-4-(5-(3,4,5-trimethoxyphenyl)-2,4-pentadienyl)piperazine, 1-(4,4'-difluorobenzhydryl)-4-(5-(2,4-dimethoxyphenyl)-2,4-pentadienyl)pip erazine, 1-benzhydryl-4-(5-(2,3,4-trimethoxyphenyl)-2,4-pentadienyl)piperazine, 1-(4,4'-difluorobenzhydryl)-4-(5-(2,3,4-trimethoxyphenyl)-2,4-pentadienyl) piperazine and the like. These dienyl derivatives are useful as vasodilators.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: December 20, 1988
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Shin Hattori, Makoto Takai, Toshio Wakabayashi, Yasusi Suwabe, Syozo Miyaoka
  • Patent number: 4788197
    Abstract: Novel pyrazine derivatives are disclosed. The compounds possess a potent platelet aggregation-inhibiting activity and are effective for preventing diseases caused by aggregation of the platelet, for example, myocardial infarction and cerebral thromobsis. Representative examples of the pyrazine derivatives includes 2,3-bis(p-chlorophenyl)-5-methylpyrazine, 2,3-bis(p-methoxyphenyl)-5-methylpyrazine, 2,3-diphenyl-5-benzylpyrazine, 2,3-diphenyl-5-(p-methoxybenzyl)pyrazine, 2,3-bis(p-methoxyphenyl)-5-isopropylpyrazine, 2,3-bis(p-methoxyphenyl)-5-(2-thienylmethyl)pyrazine and 2,3-bis(p-methoxyphenyl)-5,6-dimethylpyrazine.The pyrazine derivatives can be generally prepared by heating a benzil derivative and a 1,2-diaminoethane derivative to produce a dihydropyrazine derivative and heating the resulting compound with sulfur at 100.degree.-180.degree. C.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: November 29, 1988
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Toshio Wakabayashi, Hirokazu Hasegawa, Akihiro Ohta
  • Patent number: 4780560
    Abstract: Novel nitrate derivatives are disclosed. As examples of said nitrate derivative are described N-(.beta.-hydroxyethyl)-5-(3,4,5-trimethoxyphenyl)2,4-pentadienoic acid amide nitrate, N-(.beta.-hydroxyethyl)-3,4,5-trimethoxycinnamic acid amide nitrate and the like. These nitrate derivatives are useful as vasodilators.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: October 25, 1988
    Assignee: Terumo Corporation
    Inventors: Takahiro Kumonaka, Shigeru Taguchi, Yasushi Suwabe, Toshio Wakabayashi
  • Patent number: 4764528
    Abstract: Novel 2,4-pentadienoic acid derivatives are disclosed. As the examples are mentioned 3-(4-carboxy-trans, trans-1,3-butadienyl)-6-exo-(3.alpha.-hydroxy-trans-1-octenyl)-7-endo-hydr oxybicyclo[3.3.0]oct-2-ene, 3-(5-carboxy-trans, trans-2,4-pentadienyl)-6-exo-(3.alpha.-hydroxy-trans-1-octenyl)-7-endo-hyd roxybicyclo[3.3.0]oct-2-ene and the like. These compounds are useful as a platelet aggregation inhibitor, especially as a thrombosis-prophylactic agent.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: August 16, 1988
    Assignee: Teruo Kabushiki Kaisha
    Inventors: Keiko Chiba, Makoto Takai, Toshio Wakabayashi
  • Patent number: 4704393
    Abstract: 5-Fluorouracil derivatives represented by general; formula I: ##STR1## wherein R represents an acyl group derived from an unsaturated higher fatty acid selected from the group consisting of triene higher acids, pentaene higher acids, and hexaene higher fatty acids, can be used as for inhibiting platelet aggregation and an anticancer chemotherapeutic agent. They may be mixed with a pharmaceutically acceptable carrier or a diluent to form a medicinal preparation.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: November 3, 1987
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Toshio Wakabayashi, Keiko Takahashi, Hajime Katayama
  • Patent number: 4673684
    Abstract: According to the invention, there are provided novel amide derivatives and 5-lipoxygenase inhibitors containing the same as an effective ingredient.The above-mentioned compounds of the invention have been demonstrated to posses 5-lipoxygenase-inhibiting activities. These compounds can inhibit the production of leucotrienes such as LTC.sub.4 and LTD.sub.4 which are allergy-inducing factors by inhibiting the activity of 5-lipoxygenase. Accordingly, the amide derivatives can be used as 5-lipoxygenase inhibitors effective for allergic asthma, allergic rhinitis and the like.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: June 16, 1987
    Assignee: Terumo Corporation
    Inventors: Toshio Wakabayashi, Makoto Takai, Shuji Ichikawa, Jun-ichiro Arai, Seiitsu Murota
  • Patent number: 4670261
    Abstract: A parenteral alimentation solution having excellent nutritional properties with preventing problems such as browning which comprises three components of a reducing sugar, amino acids and electrolytes in a specific composition and a specific amount.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: June 2, 1987
    Assignees: Tanabe Seiyaku Co., Ltd., Terumo Kabushiki Kaisha
    Inventors: Masayoshi Samejima, Saburo Matsuda, Toshio Wakabayashi, Naoki Hayakawa
  • Patent number: 4656172
    Abstract: There are disclosed novel piperazine derivatives and vasodilators containing the same. The compounds are useful for controlling or preventing vascular disorders such as cerebral embolism, myocardial infarction and limb arterial obstruction. As typical compounds are mentioned 1-[5-(3,4,5-trimethoxyphenyl)-2,4-pentadienoyl]-4-(pyrrolidinocarbonylmeth yl)-piperazine, 1-[5-(3,4,5-trimethoxyphenyl)-2,4-pentadienoyl]-4-(N-isopropylaminocarbony lmethyl)-piperazine, 1-[5-(3,4,5-trimethoxyphenyl)-2,4-pentadienoyl]-4-(N,N-dimethylaminocarbon ylmethyl)piperazine and 1-[5-(3,4,5-trimethoxyphenyl)-2,4-pentadienoyl]-4-(methylaminocarbonylmeth yl)-piperazine.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: April 7, 1987
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Toshio Wakabayashi, Takahiro Kumonaka, Yasushi Suwabe
  • Patent number: 4619938
    Abstract: Alkanolamine derivatives and platelet aggregation inhibitors containing the same as an active ingredient are disclosed. The alkanolamine derivatives are novel compounds which possess potent platelet aggregation inhibitory activities and effective in preventing diseases such as thrombosis. As typical compounds are mentioned N-5,8,11,14,17-eicosapentaenoyl-2-aminoethanol, N-nicotinoyl-2-aminoethyl-5,8,11,14,17-eicosapentaenoate, N-ethyl-N-5,8,11,14,17-eicosapentaenoyl-2-aminoethanol, N-butyl-N-5,8,11,14,17-eicosapentaenoyl-2-aminoethanol, N-5,8,11,14,17-3-aminopropylnicotinate, (N-ethyl-N-nicotinoyl-2-aminoethyl)-5,8,11,14,17-eicosapentaenoate and the like.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: October 28, 1986
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Keiko Takahashi, Yasushi Suwabe, Toshio Wakabayashi
  • Patent number: 4571334
    Abstract: A composition for curing respiratory diseases which contains a medicine such as antibiotic, chemotherapeutic and anticancer drug for respiratory disease and lung surfactant.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: February 18, 1986
    Assignee: Teijin Limited
    Inventors: Tsunemasa Yoshida, Toshio Wakabayashi, Keizo Matsumoto