Patents by Inventor Yuji Maeda

Yuji Maeda 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: 4866047
    Abstract: Disclosed herein is a method for inhibiting the formation of urinary calculus by the administration of 24,25-dihydroxycholecarciferol.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: September 12, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideyuki Yamato, Yuji Maeda, Takayoshi Fujii, Yasuhiko Kobayashi, Kenichi Saito, Fumio Hirose, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4628050
    Abstract: Disclosed herein is a pharmaceutical composition in dosage unit form, which comprises a dosage effective for treating nephritic disease of a compound of 24,25-dihydroxycholecalciferol as an active ingredient and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: December 9, 1986
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuji Maeda, Hideyuki Yamato, Takayoshi Fujii, Yasuhiko Kobayashi, Kenichi Saito, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4590184
    Abstract: Disclosed herein is a pharmaceutical composition in dosage unit form, which comprises a dosage effective for treating osteoporosis of a compound of 24,25-dihydroxycholecalciferol and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: May 20, 1986
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuji Maeda, Hideyuki Yamato, Takayoshi Fujii, Yasuhiko Kobayashi, Kenichi Saito, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4534975
    Abstract: Disclosed is a pharmaceutical composition in dosage unit form which comprises a dosage effective for the treatment of pains and pyrexia, hypertension, hypotension, hyperlipemia, inflammatory diseases or diseases due to the functional accentuation of thrombocytes of a compound of 24,25-dihydroxycholecalciferol and a pharmaceutical acceptable carrier or diluent therefor.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: August 13, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideyuki Yamato, Yuji Maeda, Fumisato Yoshino, Kyoya Takahata, Masanori Ikuzawa, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4501737
    Abstract: Disclosed is a pharmaceutical composition in dosage unit form which comprises a dosage effective for the treatment of myodystrophia of a compound of 24,25-dihydroxycholecalciferol and a pharmaceutical acceptable carrier or diluent therefor.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: February 26, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideyuki Yamato, Noriyuki Toyoda, Takayoshi Fujii, Yuji Maeda, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4501738
    Abstract: Disclosed is a pharmaceutical composition in dosage unit form which comprises a dosage effective for the treatment of pains and pyrexia, hypertension, hypotension, hyperlipemia, inflammatory diseases or diseases due to the functional accentuation of thrombocytes of a compound of 24,25-dihydroxycholecalciferol and a pharmaceutical acceptable carrier or diluent therefor.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: February 26, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideyuki Yamato, Yuji Maeda, Fumisato Yoshino, Kyoya Takahata, Masanori Ikuzawa, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4447309
    Abstract: A pH sensor comprising a sleeve assembly having at least first and second spaces, a partition separating the two spaces from each other with a water tight seal, and a barrel including a flange, a reference electrode accommodated in the first space and including a liquid junction, a glass electrode having a sensor unit disposed adjacent to the liquid junction, liquid grounding means mounted adjacent to the liquid junction, and a cable disposed in the second space with a watertight seal, the cable being electrically connected to the reference electrode, glass electrode and liquid grounding means. The pH sensor can be used for continuous flow, immersion or submersion types of installations, and can be fabricated inexpensively and is easily maintained. The sensor unit of the pH sensor can be easily cleaned by a cleaning unit which includes a rotatable shaft to which is connected a vane and a brush at one end.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: May 8, 1984
    Assignee: Yokogawa Hokushin Electric Corporation
    Inventors: Akihiro Morioka, Yuji Maeda, Tetsuro Matsumoto, Masakazu Yukinari, Eiichi Kishida
  • Patent number: 4442093
    Abstract: Pharmaceutical composition in dosage unit form, comprising a therapeutically effective amount of 24,25-dihydroxycholecalciferol and a pharmaceutically acceptable carrier. The compound of 24,25-dihydroxycholecalciferol has anti-hypercalcemic activity, anti-ulcer activity, activity of preventing reduction of immunity, activity of controlling magnesium-metabolism, anti-hyperphosphatemic activity, activity of controlling blood sugar level and anti-tumor activity.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: April 10, 1984
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuji Maeda, Takayoshi Fujii, Yasuhiko Kobayashi, Kenichi Saito, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 4364593
    Abstract: A widely applicable object grasping system for driving mechanical fingers, wherein a motion converting means for converting the rotary motion of a constant speed motor into linear motion and producing variable-speed motion so as to cause the mechanical fingers to approach an object at a higher speed and to grasp the object at a lower speed with increased moment.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: December 21, 1982
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventor: Yuji Maeda
  • Patent number: 4049867
    Abstract: A novel thermosetting resin composition comprising at least one [(2,3-epoxypropoxy)alkyl]trialkoxysilane and at least one selected from polymers, prepolymers, copolymers and coprepolymers of epoxy-group-containing vinyl monomers, which may further contain at least one selected from polymers, prepolymers, copolymers and coprepolymers of vinyl monomers containing no epoxy group, is disclosed. This composition is cured by heating with addition of a ring-opening polymerization catalyst and remarkably improves surface hardness, abrasion resistance, weathering resistance, chemical resistances, heat resistances, etc. of acrylic resins and many other plastic materials without imparing the inherent transparency and other optical properties of these materials when it is applied on the surface of them and cured.
    Type: Grant
    Filed: December 23, 1975
    Date of Patent: September 20, 1977
    Assignees: Japan Atomic Energy Research Institute, Tokyo Optical Company, Ltd.
    Inventors: Akihiko Ito, Isao Kaetsu, Hiroshi Okubo, Masamichi Kato, Koichiro Hayashi, Yuji Maeda
  • Patent number: 3983083
    Abstract: Soft contact lenses comprising a copolymer comprising at least one monomer of the general formula, ##EQU1## wherein X is H or CH.sub.3 and n is 2 or 3, at least one monomer of the general formula, ##EQU2## wherein X is H or CH.sub.3 and m is an integer of 4 to 13, and optionally at least one polymerizable monomer other than the monomers of the above-mentioned two groups are disclosed. These contact lenses are soft and flexible in the non-swollen state and are tougher and less susceptible to microbiological contamination than the hitherto known soft contact lenses. Also a novel process for preparation of these soft contact lenses is disclosed, which comprises cast-polymerizing a mixture of the above-mentioned monomers, cooling the resulting copolymer to a low temperature at which it stands rigid, and shaping the copolymer body into the lens form in the cooled rigid state.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: September 28, 1976
    Assignees: Japan Atomic Energy Research Institute, Tokyo Optical Company Ltd. (Kabushiki Kaisha Tokyo Megane)
    Inventors: Isao Kaetsu, Minoru Kumakura, Akihiko Ito, Yuji Maeda