Patents by Inventor Tatsuyuki Naruchi

Tatsuyuki Naruchi 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: 5229422
    Abstract: An extemporaneous kit of pharmaceutical substance-containing fat emulsion which consists of a fat emulsion and (a) a pharmaceutical substance composition containing pharmaceutical substance and at least one solvent selected from the group consisting of water, liquid polyalkylene glycols, liquid alkylethanolamines, and liquid polyhydric alcohols, or (b) a pharmaceutical substance composition containing pharmaceutical substance and saccharides and/or 30 amino acids as an excipient, and a process for preparation of a pharmaceutical substance-containing fat emulsion therefrom.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: July 20, 1993
    Assignee: Teijin Limited
    Inventors: Ken Takahashi, Yuji Makino, Yoshiki Suzuki, Tatsuyuki Naruchi
  • Patent number: 4472428
    Abstract: Novel 5- or 7-monohalogenated or 5,7-dihalogenated .sup.6 -PGI.sub.1 and 5- or 7-monohalogenated or dihalogenated PGI.sub.2 (except 5-monofluorinated PGI.sub.2). The novel halogenated prostacyclins are useful for controlling vascular actions and also in organ transplantation, extra-corporeal circulation and the like. The present invention also provides processes for preparing the novel halogenated prostacyclins.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: September 18, 1984
    Assignee: Teijin Limited
    Inventors: Takeshi Toru, Kiyoshi Bannai, Takeo Oba, Toshio Tanaka, Noriaki Okamura, Kenzo Wantanabe, Seizi Kurozumi, Akira Ohtsu, Tatsuyuki Naruchi
  • Patent number: 4421914
    Abstract: A compound selected from thiazolo[3,2-a]pyrimidines or their enolate derivatives represented by the following general formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different, and each represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 3 to 10 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted cycloaliphatic group having 3 to 8 carbon atoms, a substituted or unsubstituted phenylalkyl group or a substituted or unsubstituted acyl group having 2 to 7 carbon atoms, provided that R.sup.1 and R.sup.2 are not simultaneously hydrogen atoms or substituted or unsubstituted acyl groups having 2 to 7 carbon atoms; and R.sup.1 and R.sup.2, when taken together, may form, with the nitrogen atom to which they are bonded, a 5- or 6-membered ring which may further contain one or more hetero atoms;and acid addition salts of these compounds.
    Type: Grant
    Filed: October 14, 1981
    Date of Patent: December 20, 1983
    Assignee: Teijin Limited
    Inventors: Noriaki Okamura, Takeshi Toru, Takeo Oba, Toshio Tanaka, Kiyoshi Bannai, Kenzo Watanabe, Seizi Kurozumi, Tatsuyuki Naruchi, Keiji Komoriya
  • Patent number: 4402975
    Abstract: A compound represented by the following formula ##STR1## wherein R.sup.1 represents a hydrogen atom, an acyl group or an alkoxycarbonyl group; X.sup.1 represents an alkylene group having 3 to 6 carbon atoms, a 1,4-cyclohexylene group, or a 1,4-phenylene group, the alkylene group may be substituted by an alkyl group having 1 to 6 carbon atoms, and the 1,4-phenylene group may be substituted by 1 or 2 substituents selected from halogen atoms and alkoxy groups having 1 to 6 carbon atoms; R.sup.2 represents a hydrogen atom or a hydroxyl group and R.sup.3 represents hydrogen atom, or R.sup.2 and R.sup.3 together may form an oxo group (.dbd.O), and when X.sup.1 is other than the 1,4-phenylene group, R.sup.2 represents a hydrogen atom and R.sup.3 represents a bond between the carbon atoms to which R.sup.3 is bonded and that carbon atom of X.sup.1 which is adjacent to said carbon atom; X.sup.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: September 6, 1983
    Assignee: Teijin Limited
    Inventors: Toru Takeshita, Kenji Hoshina, Akira Ohtsu, Tatsuyuki Naruchi
  • Patent number: 4383996
    Abstract: A derivative of thiazolo [3,2-a] pyrimidine expressed by formula (I) ##STR1## (where R indicates a phenyl group or a benzyl group which has a halogen atom, a lower alkyl or lower alkyloxy group as a substituent group, an alicyclic group or an arylethyl group), and a process for the preparation of a compound of formula (I) comprising cyclizing a compound expressed by formula (II) by application of heat ##STR2## (where a definition of R is as same as that given in case of formula (I) and R' indicates a halogen atom or lower alkyloxy group). A drug which contains this compound as active ingredient is useful for curing autoimmune diseases such as rheumatoid arthritis, nephritis, etc.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: May 17, 1983
    Assignee: Teijin Limited
    Inventors: Takeo Oba, Kiyoshi Bannai, Toshio Tanaka, Kenzo Watanabe, Tatsuyuki Naruchi, Keiji Komoriya, Seizi Kurozumi, Kenji Hoshina
  • Patent number: 4364941
    Abstract: A method for regulating the bone metabolism of a warm-blooded animal, which comprises administering pharmaceutically effective amounts of 1.alpha., 24-dihydroxycholecalciferol (1.alpha., 24-DHCC) and 24,25-dihydroxycholecalciferol (24,25-DHCC) to said warm-blooded animal, and a pharmaceutical composition comprising 1.alpha.,24-DHCC, 24,25-DHCC and a pharmaceutically acceptable carrier.According to the invention, a condition of abnormal bone metabolism requiring long-term therapy, such as osteoporosis, can be safely treated by administering 1.alpha., 24-DHCC and 24,25-DHCC over a long period of time because no substantial adverse effect of 1.alpha., 24-DHCC on the metabolis of 24,25-DHCC is observed.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: December 21, 1982
    Assignees: Teijin Limited, Teijin Pharmaceutical Co., Ltd.
    Inventors: Mamoru Kiyoki, Hiroyoshi Endo, Tatsuyuki Naruchi, Yoshinobu Hashimoto