Patents Assigned to Takasago Perfumery Co., Ltd.
  • Patent number: 4564462
    Abstract: A menthol soap comprising a soap base, menthol, a crack-preventing agent, and a solvent for said menthol.The menthol soap of the present invention gives a superior cold or refreshing feeling when applied on the skin. Furthermore, this menthol soap has such advantages that menthol crystals do not grow and come out to the surface of the soap during the storage of use thereof, and cracks do not develop in the soap.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: January 14, 1986
    Assignees: Takasago Perfumery Co., Ltd., Sunstar K.K.
    Inventors: Hajime Watanabe, Yoshio Tanaka, Seiichi Abe
  • Patent number: 4564708
    Abstract: D-2,2'-bis(diphenylphosphino)-1,1'-binaphthyldioxide and 1-2,2'-bis(diphenylphosphino)-1,1'-binaphthyldioxide are produced by reacting d1-2,2'-bis(diphenylphosphino)-1,1'-binaphthyldioxide with optically active camphor-10-sulfonic acid or optically active 3-bromo-camphor-10-sulfonic acid as a resolving agent in a lower alkyl ester of acetic acid containing a lower alkyl carboxylic acid, thereby forming diastereomeric salts, and optically resolving said diastereomeric salts.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: January 14, 1986
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Misao Yagi, Susumu Akutagawa
  • Patent number: 4520212
    Abstract: Myrcenol is produced in an effecient, high yield and economical process by deaminating 7-hydroxygeranyl dialkylamine or 7-hydroxyneryl dialkylamine with a specific palladium-phosphine-cation complex catalyst represented by the formula[<.cndot.:PdL].sup.+ X.sup.-wherein <.cndot.: represents .eta.-allyl, L represents a tertiary phosphine, and X represents a counter anion.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: May 28, 1985
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Shigeru Mitsuhashi, Hidenori Kumobayashi, Susumu Akutagawa
  • Patent number: 4499620
    Abstract: A foam washing method which comprises forming a large amount of foams by blowing a gas through a concentrated aqueous solution of a detergent, and thereafter bringing said foams into contact with soiled textile goods to separate and remove dirts adhered to fibers of said textile goods.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: February 19, 1985
    Assignee: Takasago Perfumery Co., Ltd.
    Inventor: Motoi Minagawa
  • Patent number: 4459425
    Abstract: 3-l-Menthoxypropane-1,2-diol having the formula: ##STR1##
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: July 10, 1984
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Akira Amano, Michio Moroe, Toshio Yoshida
  • Patent number: 4444982
    Abstract: (+)- or (-)-7-hydroxymethyl-2,6,6-trimethyltricyclo[6,2,1,0.sup.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: April 24, 1984
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tsukasa Nagashima, Toshio Yoshida
  • Patent number: 4434306
    Abstract: A perfume composition is described, which contains at least one compound of bicyclo[2,2,2]octane and bicyclo[2,2,2]octene derivatives represented by the general formula (I) ##STR1## wherein the symbols are the same as defined hereinbefore.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: February 28, 1984
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Toyohiko Kobayashi, Haruki Tsuruta
  • Patent number: 4428868
    Abstract: The novel compound of 5-methyl-2-(2'-oxo-3'-butyl)phenol represented by the formula ##STR1## This compound emits a characteristic sweet fragrance and a perfume composition comprising this compound is also provided.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: January 31, 1984
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Katsuhiro Takahashi, Toshio Yoshida
  • Patent number: 4419292
    Abstract: A process is described for producing polycondensates of .omega.-oxypentadecanoic acid comprising hydrogenolysis of 2-tetrahydrofuran-undecanoic acid or an ester thereof using a mixed catalyst composed of a catalyst for hydrogenation comprising one or more metals of Group VIII of the Periodic Table, copper-chromium, or copper-zinc, and a solid acid catalyst, by heating under pressure with hydrogen.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: December 6, 1983
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tohr Yamanaka, Takashi Imai
  • Patent number: 4347387
    Abstract: A process as described for preparing hydroxycitronellal by isomerizing certain 7-hydroxygeranylamine compound or 7-hydroxynerylamine compounds using a catalyst comprising a divalent palladium compound and a phosphine compound.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: August 31, 1982
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Susumu Akutagawa, Takanao Taketomi
  • Patent number: 4310685
    Abstract: A process for preparing a brassylic diester of the formula:ROOC--CH.sub.2).sub.11 COORwherein R is a lower alkyl group by hydrocracking 6,6'-methylenebis-(6-hexanolide) in an alcohol of the formula:ROH(wherein R is as defined above) in the presence of a metal catalyst and an acid catalyst. A process for producing the hexanolide is also disclosed.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: January 12, 1982
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Kiyohito Sawano, Toyohiko Kobayashi, Haruki Tsuruta
  • Patent number: 4288642
    Abstract: A process for producing .omega.-alkene-1-ols which comprises reacting an .alpha.,.omega.-alkanediol having 4 to 14 carbon atoms with a fatty acid selected from the group consisting of stearic acid, palmitic acid and a mixture of stearic acid and palmitic acid.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: September 8, 1981
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tohr Yamanaka, Takashi Imai
  • Patent number: 4250117
    Abstract: 4-Hydroxy-4-methyl-cyclohexen-2-one-1 having the formula (I): ##STR1##
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: February 10, 1981
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Katsuhiro Takahashi, Shigeru Muraki, Toshio Yoshida
  • Patent number: 4229600
    Abstract: A norbornane or norbornene derivative of the formula (I): ##STR1## wherein the bond represented by the dotted line is present or absent and n is 0 or 1, the norbornane and norbornene derivatives having a characteristic odor of sandalwood oil and useful for perfumery; and a process for the production thereof.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: October 21, 1980
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Toyohiko Kobayashi, Haruki Tsuruta, Toshio Yoshida
  • Patent number: 4214110
    Abstract: A process for producing hydrocarbons having about 10 to 50 carbon atoms with a high yield by subjecting a synthetic polyisoprene rubber to a thermally destructive distillation under a reduced pressure and further a process for producing squalane-like saturated hydrocarbons by catalytically reducing the distillate thus obtained from the synthetic polyisoprene rubber.
    Type: Grant
    Filed: July 23, 1976
    Date of Patent: July 22, 1980
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tatsuo Moroe, Akira Komatsu, Kiyosumi Doi, Mitio Moroe
  • Patent number: 4202906
    Abstract: A chewing gum base containing natural rubber, basic gum additives and a decomposition product obtained by thermally decomposing natural rubber at a temperature of 200.degree. C. to 350.degree. C. in an inert atmosphere and removing low boiling point fractions up to 160.degree. C. at a pressure of approximately 1 mm Hg.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: May 13, 1980
    Assignees: Lotte Co., Ltd., Takasago Perfumery Co., Ltd.
    Inventors: Koichi Ogawa, Shichigoro Tezuka, Yoshinori Sato, Michio Moroe, Haruki Tsuruta, Toshio Yoshida
  • Patent number: 4183831
    Abstract: A perfume composition containing 5-ethyl-4-methyl-methylnicotinate and a method of improving the naturalness of the fragrance of a perfume composition.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: January 15, 1980
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Takaaki Toyoda, Shigeru Muraki
  • Patent number: 4144257
    Abstract: A process for preparing derivatives of isoprene dimers, which are useful as materials for producing perfumes, pharmaceuticals and industrial chemicals, comprising catalytically reacting isoprene with an active methyl-containing compound, such as methacrylonitrile, using bis-.pi.-allyl nickel or bis-cyclooctadiene nickel as a catalyst and triphenyl phosphine, triphenyl phosphite, tributyl arsenic or tricyclohexyl phosphine as a ligand and a tertiaryamine compound as a solvent.
    Type: Grant
    Filed: July 30, 1976
    Date of Patent: March 13, 1979
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Hidenori Kumobayashi, Susumu Akutagawa, Akira Komatsu
  • Patent number: 4134919
    Abstract: A process for producing menthone comprising dehydrogenating citronellol in the presence of a dehydrogenation catalyst at about 150 to about 260.degree. C in an atmosphere of hydrogen under a pressure of 0 to about 5 kg/cm.sup.2. G and a process for producing menthol. Since the dehydrogenation catalyst has a hydrogenating ability, an embodiment additionally includes the ability to ultimately produce menthol in the same reactor without separating the catalyst or adding additional or another catalyst to the system by simply changing the temperature and the hydrogen pressure. Embodiments also include producing menthone and also ultimately menthol utilizing geraniol or a mixture of geraniol and citronellol as a starting material again without catalyst separation or use of additional or another catalyst.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: January 16, 1979
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tohr Yamanaka, Misao Yagi
  • Patent number: 4052457
    Abstract: A novel spiro compound, 3,7,11,11-tetramethyl-spiro[5,5]-undeca-8-ene-1-one for altering the flavor or aroma of tobacco products. The spiro compound is prepared by reacting pulegone and piperylene in a solvent in the presence of a Lewis acid catalyst.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: October 4, 1977
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Akira Nagakura, Michio Moroe, Yasuto Koyama, Haruki Kurihara