Patents Assigned to Takasago Perfumery Co., Ltd.
  • Patent number: 5205443
    Abstract: An actuator for liquid ejection which is provided with a plug for closing the ejection spout disposed at the distal portion thereof. This actuator is capable of preventing a residual liquid which is left inside the actuator after an ejection operation from being contacted with an outer atmosphere, thereby preventing the denaturing or degradation of the liquid. Further, it is capable of preventing a ejection spout from being stopped up and of preventing a filmy cover or block to be made. This plug is mounted on an elastic rod-like member disposed in and along the liquid-discharging passage, and is adapted to be moved backward, thus opening the ejection spout as the elastic rod-like member is forced to bend by an actuating rod when the actuator is pushed downward.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: April 27, 1993
    Assignees: Takasago Perfumery Co., Ltd., Kabushiki Kaisha Tatsumi Kogyo
    Inventors: Ryosuke Inui, Susumu Matsubara
  • Patent number: 5085353
    Abstract: An actuator for liquid ejection which is provided with a plug for closing the ejection spout disposed at the distal portion thereof. This actuator is capable of preventing a residual liquid which is left inside the actuator after an ejection operation from being contacted with an outer atmosphere, thereby preventing the denaturing or degradation of the liquid. Further, it is capable of preventing an ejection spout from being stopped up and of preventing a filmy cover or block to be made. This plug is mounted on an elastic rod-like member disposed in and along the liquid-discharging passage, and is adapted to be moved backward, thus opening the ejection spout as the elastic rod-like member is forced to bend by an actuating rod when the actuator is pushed downward.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: February 4, 1992
    Assignees: Takasago Perfumery Co., Ltd., Kabushiki Kaisha Tatsumi Kogyo
    Inventors: Ryosuke Inui, Susumu Matsubara
  • Patent number: 4962242
    Abstract: A process for producing an optically active alcohol represented by formula (I): ##STR1## wherein R.sub.1 is an alkyl group having from 2 to 11 carbon atoms, an alkenyl group having from 3 to 11 carbon atoms, an alkadienyl group having from 6 to 11 carbon atoms, a cyclohexyl group, an cyclohexylmethyl group, or a cyclohexylethyl group, provided that the olefin in the alkenyl group or alkadienyl group is not conjugated to the olefin at the 2-position thereof; and * means an asymmetric carbon atom,is disclosed, comprising subjecting an olefinic alcohol represented by formula (II): ##STR2## wherein R.sub.1 is the same as defined above to asymmetric hydrogenation in the presence of, as a catalyst, a ruthenium-optically active phosphine complex.According to the process of the invention, the desired optically active alcohols which are useful not only as intermediates for the manufacture of perfumes and vitamin E but also as liquid crystal materials can be produced with high optical purities.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: October 9, 1990
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Nobuo Yamada, Toshiyuki Takezawa, Noboru Sayo, Misao Yagi, Hidenori Kumobayashi, Susumu Akutagawa, Hidemasa Takaya, Shinichi Inoue, Ryoji Noyori
  • Patent number: 4885274
    Abstract: The perfume composition containing 4- (or 5-)-acyl-1,1- (or 3,3-)-[a] compound, which is a novel compound expressed by the formula I, has noble musk fragrance. In addition, this perfume composition has characteristics that it is excellent in both quality and strength of the fragrance, of high safety and capable of being manufactured with low costs.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: December 5, 1989
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Nobuo Yamada, Toyohiko Kobayashi
  • Patent number: 4851537
    Abstract: A process for preparing an N-acyltetrahydroisoquinoline represented by formula (II) ##STR1## wherein A represents a phenylene ring substituted with a hydroxyl group, a lower alkoxy group, an acetoxy group, or a benzyloxy group; R represents a hydrogen atom, a lower alkyl group, or a phenyl group; and X represents a hydrogen atoms, a phenyl group, or a phenyl group substituted with a hydroxyl group, a lower alkoxy group, or an acetoxy group, which comprises asymmetrically hydrogenating an N-acyl-1-methylenetetrahydroisoquinoline or N-acyl-1-benzylidenetetrahydroisoquinoline represented by formula (I) ##STR2## wherein A, R, and X are as defined above, in the presence of an optically active ruthenium-phosphine complex as a catalyst. The process exclusively and efficiently provides a useful isomer of the N-acyltetrahydroisoquinoline of high purity which is useful as an intermediate for synthesizing isoquinoline type alkaloids as pharmaceuticals without involving optical resolution of a racemate.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: July 25, 1989
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Ryoji Noyori, Masato Kitamura, Hidemasa Takaya, Hidenori Kumobayashi, Susumu Akutagawa
  • Patent number: 4769243
    Abstract: A method for preparing green aroma compounds is disclosed wherein raw soybeans are ground at a temperature of 60.degree. C. or less, unsaturated fatty acid are added thereto form a mixture, and the mixture is stirred at a temperature of 5.degree. to 60.degree. C. while supplying air or oxygen to form green aroma compounds.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: September 6, 1988
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tsuneyoshi Kanisawa, Hideichi Itoh
  • Patent number: 4751163
    Abstract: A 1,1,4,4-tetraphenyl-1,3-butadiene derivatives represented by formula (I): ##STR1## wherein R.sub.1 represents a di-lower alkylamino group, and R.sub.2 represents a hydrogen atom or a di-lower alkylamino group, is disclosed, which has useful characteristics such as excellent static charge retention ability. An electrophotographic light-sensitive material using the foregoing derivative can satisfy the requirements, e.g., for high sensitivity, low residual potential, less light fatigue even after repeated use, and excellent durability.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: June 14, 1988
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Toshimitsu Hagiwara, Haruki Tsuruta
  • Patent number: 4739084
    Abstract: A ruthenium-phosphine complex having a 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl or its derivative as a ligand and carboxyl groups bonded to the ruthenium atom thereof is disclosed. The complex is inexpensive and exhibits excellent performances as a catalyst for various organic syntheses, and particularly for asymmetric hydrogenation.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: April 19, 1988
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Hidemasa Takaya, Tetsuo Ohta, Ryoji Noyori, Nobuo Yamada, Toshiyuki Takezawa, Noboru Sayo, Takanao Taketomi, Hidenori Kumobayashi, Susumu Akutagawa
  • Patent number: 4739085
    Abstract: A ruthenium-phosphine complex represented by formula (I):[RuH.sub.l (R-BINAP).sub.m ]X.sub.n' (I)wherein R-BINAP is a tertiary phosphine represented by formula (II): ##STR1## R is a hydrogen atom or a methyl group; X is a ClO.sub.4, BF.sub.4, or PF.sub.6 ; and when l is 0, then m is 1 and n' is 2, and when l is 1, then m is 2 and n' is 1, is disclosed. The complex is inexpensive and exhibits excellent performances as a catalyst for various organic syntheses, and particularly for asymmetric hydrogenation.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: April 19, 1988
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Hidemasa Takaya, Tetsuo Ohta, Ryoli Noyori, Noboru Sayo, Hidenori Kumobayashi, Susumu Akutagawa
  • Patent number: 4738951
    Abstract: A perfume composition is disclosed, containing methyl l-3,7-dimethyl-7-hydroxyoctylideneanthranilate of the following formula (I): ##STR1## The perfume composition of the invention is less allergenic and safer than those containing the corresponding d- or dl-form. Further, the perfume composition has a less irritating odor and imparts a clean and green note.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: April 19, 1988
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Takeshi Yamamoto, Kazutoshi Sakurai, Susumu Watanabe, Atsushi Kinosaki
  • Patent number: 4705895
    Abstract: A phosphine compound represented by formula: ##STR1## wherein R represents a hydrogen atom or an acetyl group; and Ph represents a phenyl group. The phosphine compound is capable of forming a complex with a metallic element, e.g., rhodium, ruthenium, palladium, etc., which exhibits high performances as a catalyst for asymmetric syntheses.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: November 10, 1987
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Tamon Okano, Hidenori Kumobayashi, Susumu Akutagawa, Jitsuo Kiji, Hisatoshi Konishi, Keiichi Fukuyama, Yasunobu Shimano
  • Patent number: 4695631
    Abstract: A process for the preparation of enamines or imines by isomerization of allylamine derivatives is described. Allylamine derivatives represented by formula (I): ##STR1## are isomerized using as a catalyst a rhodium complex represented by formula (IV):[Rh(olefin)L].sup.+ X.sup.- (IV)to form enamines or imines represented by, respectively, formula (II) or formula (III): ##STR2## All of the symbols in the above formulae are as described. These enamines or imines are useful intermediates for the preparation of a number of organic compounds.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: September 22, 1987
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Seinosuke Otsuka, Kazuhide Tani, Tsuneaki Yamagata, Susumu Akutagawa, Hidenori Kumobayashi, Misao Yagi
  • Patent number: 4691037
    Abstract: A ruthenium-phosphine complex represented by the formula (I)Ru.sub.x H.sub.y Cl.sub.z (R--BINAP).sub.2 (S).sub.p (I)wherein R--BINAP represents tertiary phosphine represented by the formula (II) ##STR1## R which is the same represents hydrogen, methyl or t-butyl, S represents tertiary amine, y represents 0 or 1, and when y is 0, x represents 2, z represents 4 and p represents 1, and when y is 1, x represents 1, z represents 1 and p represents 0.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: September 1, 1987
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Sadao Yoshikawa, Masahiko Saburi, Takao Ikariya, Youichi Ishii, Susumu Akutagawa
  • Patent number: 4678603
    Abstract: A cologne composition such as eau de cologne which is characterized in comprising grape wine having a reduced acidity for example of pH 5.0 to 6.0. The grape wine may be included in the cologne composition in an amount of 10 to 35% by weight based on the whole composition.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: July 7, 1987
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Hiroshi Ishii, Bunichiro Hosoda
  • Patent number: 4634588
    Abstract: Deodorant of natural origin, which is useful in the fields of foodstuff, cosmetics and toiletry. This deodorant is derived from brewed wine or residual fermentation materials produced in the manufacture of brewed wine. In one aspect, this deodorant is manufactured from the brewed wine by evaporating water and alcohols from the brewed wine to obtain residual product as a deodorant. In another aspect, the residual fermentation materials are first extracted with ethanol to obtain an ethanol-extracted liquid, which is then heated to evaporate water and alcohol therefrom to obtain the product. This deodorant may further contain amino acid and/or salts of amino acid.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: January 6, 1987
    Assignee: Takasago Perfumery Co. Ltd.
    Inventor: Michio Moroe
  • Patent number: 4612190
    Abstract: A growth inhibitor for cariogenic bacteria which comprises containing therein dihydroguaiaretic acid as an active ingredient. In particular, the effect of growth inhibition to Streptococcus mutans RIMD 3125001 strain can be obtained at a concentration of 1/50,000.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: September 16, 1986
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Toshiya Sato, Kenichi Asano, Yuzo Yamaguchi
  • Patent number: 4605750
    Abstract: A novel rhodium-phosphine complex represented by the formula (I):[Rh(BINAP).sub.2 ].sup.+ Y.sup.-wherein BINAP represents 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl, and Y represents ClO.sub.4, PF.sub.6, BF.sub.4, PCl.sub.6 or B(C.sub.6 H.sub.4) is described. This complex can be used as a catalyst for various organic syntheses and also for asymmetric syntheses such as an asymmetric isomerization reaction and an asymmetric hydrogenation reaction. Due to its high activity, the complex is very useful as a catalyst.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: August 12, 1986
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Hidenori Kumobayashi, Susumu Akutagawa
  • Patent number: 4604474
    Abstract: A novel rhodium-phosphine complex represented by the formula[Rh(p-Tolyl BINAP).sub.2 ].sup.+ Y.sup.-wherein p-Tolyl BINAP represents 2,2'-bis(di-p-tolylphosphino)-1,1'-binaphthyl, and Y represents ClO.sub.4, PF.sub.6, BF.sub.4 or PCl.sub.6 is described. This complex can be used as a catalyst for various organic syntheses and also for asymmetric syntheses such as an asymmetric isomerization reaction and an asymmetric hydrogenation reaction. Due to its high activity, the complex is very useful as a catalyst.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: August 5, 1986
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Hidenori Kumobayashi, Susumu Akutagawa
  • Patent number: 4590215
    Abstract: A growth inhibitor for cariogenic bacteria which comprises containing therein l-.alpha.-cadinol as an active ingredient. In particular, the effect of growth inhibition to Streptococcus mutans IPCR 1009 strain can be produced at a concentration of 1/50,000.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: May 20, 1986
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Yuzo Yamaguchi, Toshiya Sato
  • Patent number: 4582635
    Abstract: A perfume-containing resin which is produced by polymerizing diethylene glycol bis(allyl carbonate) in the presence of a perfume. The resin emits a well-balanced fragrance over a long period of time.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: April 15, 1986
    Assignees: Takasago Perfumery Co., Ltd., Asahi Glass Co., Ltd.
    Inventors: Shigemasa Furuuchi, Shigehiro Katsuragi, Kiyohito Sawano