Patents by Inventor Masayoshi Aruga

Masayoshi Aruga 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: 4880823
    Abstract: An injectable composition of nicardipine hydrochloride comprising an aqueous nicardipine hydrochloride solution containing 2-7 w/v % of polyhydric alcohol. This injectable composition can maintain its desired concentration and can be stably stored for a long period of time.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: November 14, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Katayasu Ogawa, Go Ohtani, Shoji Yokota, Masayoshi Aruga
  • Patent number: 4879119
    Abstract: A patch having good transdermal property which utilizes a suppository base e.g. triglyceride of a vegetable saturated fatty acid having 12 to 18 carbon atoms together with a penetration enhancer.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: November 7, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yutaka Konno, Hiroitsu Kawata, Masayoshi Aruga, Takashi Sonobe, Mitsuo Mitomi
  • Patent number: 4788221
    Abstract: Pharmaceutical compositions for intranasal administration comprising (a) calcitonin and (b) at least one absorption enhancer selected from the group consisting of benzyl alcohol, ethanol, thiamine or a salt thereof, salicylic acid or a salt thereof, capric acid or a salt thereof, Macrogol 400, pyridoxal or a salt thereof, malic acid or a salt thereof and pyrophosphoric acid or a salt thereof, in (c) a liquid diluent or carrier, suitable for application to the nasal mucosa.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: November 29, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Seiya Kagatani, Shunji Hasumi, Takashi Sonobe, Masayoshi Aruga
  • Patent number: 4772590
    Abstract: An oily composition of aclarubicin or aclarubicin hydrochloride comprising aclarubicin or aclarubicin hydrochloride; at least one fatty acid selected from saturated medium chain fatty acids, unsaturated medium chain fatty acids and unsaturated long chain fatty acids; and at least one fats and oils selected from iodized oils and vegetable oils.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: September 20, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroitsu Kawata, Shunji Hasumi, Akira Okada, Masayoshi Aruga, Toshimitsu Konno, Ken Iwai, Hiroshi Maeda
  • Patent number: 4772475
    Abstract: A pharmaceutical controlled-release individual unit or multiple units formulation in which the individual unit comprises a granulation product obtained by adding a release controlling agent to a mixture of a physiologically active substance and units-forming substance(s) and granulating and resultant mixture, said granulation product (granules) being substantially not disintegrated but gradually releasing the physiologically active substance in the gastrointestinal tract.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: September 20, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Muneo Fukui, Kouji Tomuro, Shigeru Masuyama, Atsushi Kajiyama, Tamio Hikosaka, Masayoshi Aruga, Saburo Higuchi, Yoshiaki Soeishi
  • Patent number: 4765988
    Abstract: Long acting formulations of amosulalol hydrochloride are provided, wherein the frequency of administering the hypotensive agent is minimized and wherein such formulations are prepared by compounding amosulalol hydrochloride with an enterosoluble material and optionally the inclusion of an organic acid.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: August 23, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Sonobe, Hiroshi Sugiura, Tomoh Itoh, Masayoshi Aruga, Hiroitsu Kawata
  • Patent number: 4758437
    Abstract: A spherical pellet like composition of nicardipine composed of small granular nuclei such as sugar particles coated with amorphous nicardipine or a salt thereof, a pH-dependent additive and a surface active agent. The spherical pellet like composition of nicardipine may have a further coating of a medicament permeating material as an outermost coating. The spherical pellet like composition may be mixed with the spherical pellet like composition coated with the medicament permeating material.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: July 19, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Sonobe, Hiroitsu Kawata, Masayoshi Aruga, Tadayoshi Ohmura, Satoru Yoneya, Chiharu Yamada, Yukio Kubota
  • Patent number: 4724148
    Abstract: Long acting formulations of amosulalol hydrochloride are provided, wherein the frequency of administering the hypotensive agent is minimized and wherein such formulations are prepared by compounding amosulalol hydrochloride with an enterosoluble material and optionally the inclusion of an organic acid.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: February 9, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Sonobe, Hiroshi Sugiura, Tomoh Itoh, Masayoshi Aruga, Hiroitsu Kawata
  • Patent number: 4690952
    Abstract: Pharmaceutical compositions for intranasal administration comprising (a) calcitonin and (b) at least one absorption enhancer selected from the group consisting of benzyl alcohol, ethanol, thiamine or a salt thereof, salicylic acid or a salt thereof, capric acid or a salt thereof, Macrogol 400, pyridoxal or a salt thereof, malic acid or a salt thereof and pyrophosphoric acid or a salt thereof, in (c) a liquid diluent or carrier, suitable for application to the nasal mucosa.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: September 1, 1987
    Assignee: Yamanouchi Pharmaceutical Co., Inc.
    Inventors: Seiya Kagatani, Shunji Hasumi, Takashi Sonobe, Masayoshi Aruga
  • Patent number: 4685911
    Abstract: A patch having good transdermal property which utilizes a suppository base e.g. triglyceride of a vegetable saturated fatty acid having 12 to 18 carbon atoms together with a penetration enhancer.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: August 11, 1987
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yutaka Konno, Hiroitsu Kawata, Masayoshi Aruga, Takashi Sonobe, Mitsuo Mitomi
  • Patent number: 4673564
    Abstract: Sustained release pharmaceutical compositions of a solid medical material which contains an amorphous solid medical material, polyethylene oxide, and at least one basic substance selected from the group consisting of hydroxypropylmethyl cellulose, hydroxypropyl cellulose, methyl cellulose, polyvinyl pyrrolidone, carboxyvinyl polymer, hydroxypropylmethyl cellulose phthalate, cellulose acetate phthalate, methyl meta-acrylate meta-acrylic acid copolymer, polyvinylacetal diethylaminoacetate, dimethylaminoethyl meta-acrylate meta-acrylic acid copolymer, 2-methyl-5-vinylpyridinemethyl acrylate meta-acrylic acid copolymer, citric acid, urea, succinic acid and amino acid, and may further contain one basic substance selected from the group consisting of a surface active agent, polyethylene glycol, propylene glycol, glycerin, a glycerin fatty acid ester and a vegetable oil (first embodiment); and in the case where the solid medical material in nicardipine, the composition may consist only of the amorphous nicardipine o
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: June 16, 1987
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroitsu Kawata, Masayoshi Aruga, Tadayoshi Ohmura, Takashi Sonobe, Satoru Yoneya, Chiharu Sone
  • Patent number: 4637930
    Abstract: A formulation is provided for the transdermal administration of nicardipine hydrochloride. The formulation is comprised of nicardipine hydrochloride dissolved or suspended in a mixed liquid composed of an urea and at least one compound selected from the group consisting of propylene glycol, a monohydric alcohol having 2 to 4 carbon atoms, lactic acid, thioglycol, a middle chain fatty acid glyceride and a sorbitan middle chain fatty acid ester compounded with a transdermal formulation base.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: January 20, 1987
    Assignee: Yamanouchi Pharmaceutical Co, Ltd.
    Inventors: Yutaka Konno, Hiroitsu Kawata, Masayoshi Aruga, Takashi Sonobe, Mitsuo Mitomi
  • Patent number: 4578391
    Abstract: An oily composition of an antitumor drug comprising at least one sparingly oil soluble or water-soluble antitumor drug, at least one fat or oil, and at least one solubilizing adjuvant in an oily vehicle selected from the group consisting of crown ether, lecithin, polyethylene glycol, propylene glycol, vitamin E, polyoxyethylene alkylether, and sucrose esters of fatty acids.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: March 25, 1986
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroitsu Kawata, Tadayoshi Ohmura, Shunji Hasumi, Yutaka Konno, Masayoshi Aruga, Seiki Tashiro, Toshimitsu Konno, Ken Iwai
  • Patent number: 4404183
    Abstract: Sustained release pharmaceutical compositions of a solid medical material which contains an amorphous solid medical material, polyethylene oxide, and at least one basic substance selected from the group consisting of hydroxypropylmethyl cellulose, hydroxypropyl cellulose, methyl cellulose, polyvinyl pyrrolidone, carboxyvinyl polymer, hydroxypropylmethyl cellulose phthalate, cellulose acetate phthalate, methyl meta-acrylate meta-acrylic acid copolymer, polyvinylacetal diethylaminoacetate, dimethylaminoethyl meta-acrylate meta-acrylic acid copolymer, 2-methyl-5-vinylpyridinemethyl acrylate meta-acrylic acid copolymer, citric acid, urea, succinic acid and amino acid, and may further contain one basic substance selected from the group consisting of a surface active agent, polyethylene glycol, propylene glycol, glycerin, a glycerin fatty acid ester and a vegetable oil (first embodiment); and in the case where the solid medical material is nicardipine, the composition may consist only of the amorphous nicardipine o
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: September 13, 1983
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroitsu Kawata, Masayoshi Aruga, Tadayoshi Ohmura, Takashi Sonobe, Satoru Yoneya, Chiharu Sone
  • Patent number: 4380534
    Abstract: A solid microdose drug preparation containing a microdose drug such as formoterol fumarate or .beta.-methyldigoxin coated with wax.In the drug preparation, the stability and the content uniformity of the microdose drug have been improved.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: April 19, 1983
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Muneo Fukui, Yutaka Konno, Yukio Kubota, Masayoshi Aruga, Hiroitsu Kawata
  • Patent number: 4343789
    Abstract: Sustained release pharmaceutical composition of a solid medical material which contains an amorphous solid medical material, polyethylene oxide, and at least one basic substance selected from the group consisting of hydroxypropylmethyl cellulose, hydroxypropyl cellulose, methyl cellulose, polyvinyl pyrrolidone, carboxyvinyl polymer, hydroxypropylmethyl cellulose phthalate, cellulose acetate phthalate, methyl meta-acrylate meta-acrylic acid copolymer, polyvinylacetal diethylaminoacetate, dimethylaminoethyl meta-acrylate meta-acrylic acid copolymer, 2-methyl-5-vinylpyridinemethyl acrylate meta-acrylic acid copolymer, citric acid, urea, succinic acid and amino acid, and may further contain one basic substance selected from the group consisting of a surface active agent, polyethylene glycol, propylene glycol, glycerin, a glycerin fatty acid ester and a vegetable oil (first embodiment): and in the case where the solid medical material is nicardipine, the composition may consist only of the amorphous nicardipine or
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: August 10, 1982
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroitsu Kawata, Masayoshi Aruga, Tadayoshi Ohmura, Takashi Sonobe, Satoru Yoneya, Chiharu Sone
  • Patent number: RE34618
    Abstract: An injectable composition of nicardipine hydrochloride comprising an aqueous nicardipine hydrochloride solution containing 2-7 w/v % of polyhydric alcohol. This injectable composition can maintain its desired concentration and can be stably stored for a long period of time.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: May 24, 1994
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Katayasu Ogawa, Go Ohtani, Shoji Yokota, Masayoshi Aruga