Patents by Inventor Shuichi Furuya

Shuichi Furuya 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: 6004954
    Abstract: This invention relates to a compound of the following formula or a salt thereof, their production and use. ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, a group bonding through a carbon atom, a group bonding through a nitrogen atom, a group bonding through an oxygen atom, or a group bonding through a sulfur atom; R.sup.3 represents hydrogen, halogen, a group bonding through a carbon atom, a group bonding through a nitrogen atom, a group bonding through an oxygen atom, or a group bonding through a sulfur atom; W represents an oxygen atom or sulfur atom; A represents a group forming a nitrogen-containing condensed ring at the 3,4- of a 1,4-thiazine ring; R.sup.1 and R.sup.2 may be combined to form a bivalent hydrocarbon group interrupted by one or more hetero atoms or an alkylene group.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: December 21, 1999
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Seiichi Tanida, Yoshikazu Ohta
  • Patent number: 6001850
    Abstract: The present thienopyridine derivatives and composition having gonadotropin-releasing hormone antagonistic activity are useful as prophylactic or therapeutic agents for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, cancer of uterine cervix, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, polycystic ovary syndrome and acne vulgaris; is effective as a fertility controlling agent in both sexes (e.g.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: December 14, 1999
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Hirokazu Matsumoto, Yoji Hayase, Nobuhiro Suzuki, Takashi Imada
  • Patent number: 5977132
    Abstract: The prolactin production inhibition agent of the present invention containing a condensed cyclic compound, which is characterized by containing a condensed bicyclic structure of an optionally substituted homo or hetero 5- to 7-membered ring with an optionally substituted homo or hetero 5- to 7-membered ring, or a salt thereof, can be used, as a medicine, for the prophylaxis or therapy of diseases accompanied with an excess prolactin production or diseases having enhanced reactivity with prolactin, or is useful for inhibiting puerperal lactation, and also useful as a prophylactic or therapeutic agent of galactorrhea, hyperprolactinemic ovulation disturbance, amenorrhea-galactorrhea syndrome, prolactinoma, and besides, interbrain tumor, and acromegaly, pituitary gigantism.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: November 2, 1999
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Nobuhiro Suzuki, Hirokazu Matsumoto, Shuichi Furuya
  • Patent number: 5817819
    Abstract: A gonadotropin-releasing hormone antagonistic composition, which comprises an optionally substituted condensed-bicyclic compound consisting of a homo or hetero 5 to 7 membered ring and a homo or hetero 5 to 7 membered ring is effective as a propylactic or therapeutic agent for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, cancer of uterine cervix, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, polycystic ovary syndrome and acne vulgaris; is effective as a fertility controlling agent in both sexes (e.g.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: October 6, 1998
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Nobuo Choh, Koichi Kato, Shuji Hinuma
  • Patent number: 5807869
    Abstract: The present quinoline derivatives and compositions having gonadotropin-releasing hormone antagonistic activity are useful as propylactics or therapeutic agent for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, uterine or cervical cancer, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, polycystic ovary syndrome and acne vulgaris; are effective as a fertility controlling agent in both sexes (e.g.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: September 15, 1998
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Nobuo Choh, Satoshi Sasaki
  • Patent number: 5744479
    Abstract: The present thienopyrimidine derivatives and compositions having gonadotropin-releasing hormone antagonistic activity are useful as propylactics or therapeutic agents for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, uterine cervical cancer, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, polycystic ovary syndrome and acne vulgaris; are effective as a fertility controlling agent in both sexes (e.g.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: April 28, 1998
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Nobuo Choh, Masataka Harada, Satoshi Sasaki
  • Patent number: 5654309
    Abstract: Pyridopyrimidine derivatives of the formula (A), wherein n denotes an integer of 0 to 3, Q stands for --(CH.sub.2).sub.m --, --O--, --S(O).sub.P -- or --N--, and R.sup.1 to R.sup.5 stand for substituents, where R.sup.3 is an optionally substituted phenyl, naphthyl, pyridyl, quinolyl, quinolonyl, or thienyl group; or its salt are described. Preparation and use of the derivatives for an antagonistic agent for an endothelin receptor are shown. An endothelin receptor antagonist including the derivative is effective as a therapeutic composition of acute renal insufficiency, myocardial infarction, hypertension, cerebral infarction, angina pectoris, arteriosclerosis, hepatopathy, pulmonary hypertension, bronchial asthma, organohypofunction occurring during operation of transplantation of organs.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Tetsuya Ohtaki
  • Patent number: 4873127
    Abstract: A heat transfer tube comprising an inner tube formed of copper or steel, an intermediate layer having a uniform thickness, mounted on the outer periphery of the inner tube and formed of a low melting point metal such as solder, tin or lead and an outer tube of lead or lead alloy mounted on the intermediate layer on the inner tube and metallurgically bonded with the intermediate layer when the low melting point metal is melted.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: October 10, 1989
    Assignee: The Fukura Electric Company, Ltd.
    Inventors: Kagetoshi Onodera, Tatsuya Koizumi, Toshiyuki Kato, Junji Sotani, Masauki Momo, Shuichi Furuya
  • Patent number: 4327801
    Abstract: This invention relates to an improvement in a heat exchanger of the type using heat pipes which permits reduction in size of the heat exchanger and enhancement in heat exchange efficiency and more particularly to a cylindrical heat exchanger principally comprising a cylindrical or polygonal tubular casing provided with openings in the middle parts of its upper and lower sides and in its circumferential side, a transverse partition plate which divides the inside of the casing into upper and lower parts and a group of vertical heat pipes arranged to pierce through the peripheral portion of the partition plate in an annular plan configuration as a whole.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: May 4, 1982
    Assignee: The Furukawa Electric Company, Ltd.
    Inventors: Tatsuya Koizumi, Shuichi Furuya, Koji Matsumoto, Kensuke Karasawa
  • Patent number: 4206807
    Abstract: This invention relates to an improvement in a heat exchanger of the type using heat pipes which permits reduction in size of the heat exchanger and enhancement in heat exchange efficiency and more particularly to a cylindrical heat exchanger principally comprising a cylindrical or polygonal tubular casing provided with openings in the middle parts of its upper and lower sides and in its circumferential side, a transverse partition plate which divides the inside of the casing into upper and lower parts and a group of vertical heat pipes arranged to pierce through the peripheral portion of the partition plate in an annular plan configuration as a whole.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: June 10, 1980
    Assignee: The Furukawa Electric Company Ltd.
    Inventors: Tatsuya Koizumi, Shuichi Furuya, Koji Matsumoto, Kensuke Karasawa