Patents by Inventor Ryoichi Takahashi

Ryoichi Takahashi 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: 5133969
    Abstract: An antimicrobial composition comprises a clathrate compound containing a water-soluble microbicide, and a dispersion medium.For example, the composition may comprise of a clathrate compound containing a water-soluble microbicide and having a particle size of 200 mesh at maximum, said clathrate compound being formed of 5-chloro-2-methyl-4-isothiazoline-3-one and at least one polymolecular host compound selected from the group consisting of 1, 1-di (2,4-dimethylphenyl)-2-propyne-1-ol; 1,1,6,6-tetra(2,4-dimethylphenyl)-2,4-hexadiyne-1,6-diol; 1,1-bis(4-hydroxyphenyl)cyclohexane; N,N,N',N'-tetra(cyclohexyl)-[1,1'biphenyl]-2,2'-dicarboxyamide; 2,2'-methylenebis(4-chlorophenol), deoxycholic acid; and 2,5-di-tert-butylhydroquinone and a dispersion medium.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: July 28, 1992
    Assignee: Kurita Water Industries Ltd.
    Inventors: Ayako Sekikawa, Hideo Sugi, Ryoichi Takahashi, Kenji Tahara
  • Patent number: 5082654
    Abstract: A clathrate compound which comprises diethyltoluamide and a polymolecular host compound capable of taking up diethyltoluamide.The host compound is bisphenol compounds. Diethyltoluamide is stabilized by forming the clathrate compound.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: January 21, 1992
    Assignee: Kurita Water Industries Ltd.
    Inventors: Hideo Sugi, Ryoichi Takahashi, Kenji Tahara
  • Patent number: 5079000
    Abstract: A composition for killing harmful organisms, which contains a clathrate compound composed of one or more natural essential oils and/or derivatives thereof selected from the group consisting of the following substances (1) to (22) and a polymolecular host compound capable of including the natural essential oils and/or derivatives thereof:(1) hinoki oil;(2) 1,8-cineole;(3) l-.alpha.-terpineole;l-carbone;(5) l-menthone;(6) d-pulegone;(7) citronellal;(8) linelool oxide;(9) d,l-citronellol;(10) 3,3,5-trimethylcyclohexanol;(11) l-perillaldehyde;(12) l-carveol;(13) myrtenal;(14) peppermint oil;(15) eucalyptus oil;(16) cinnamic aldehyde;(17) .alpha.-bromo-cinnamic aldehyde;(18) salicylaldehyde;(19) benzaldehyde;(20) paraphenyl-propionaldehyde;(21) paratolualdehyde; and(22) l-menthol.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: January 7, 1992
    Assignee: Kurita Water Industries Ltd.
    Inventors: Ryoichi Takahashi, Tsuneo Mukai, Shigeyuki Mayama
  • Patent number: 5063933
    Abstract: In a magnetic resonance imaging apparatus for use in magnetic resonance diagnosis of a patient, there is provided a transmitter-receiver coil affixed to a holding member or bracket which is movably supported by three easily hand bendable, flexible members which rigidly hold the position in which they are bent. The lower extremity of each flexible member is mounted upon a fixing member which can be moved longitudinally along a patient support or table for placement of the coil.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: November 12, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ryoichi Takahashi
  • Patent number: 5060497
    Abstract: A pair of dies are provided of which die faces are formed with depressions sequentially brought into engagement with a particular portion of a workpiece as the workpiece rolls between the die faces. By compressing the workpiece while driving the same to roll between the die faces, an excess metal of the workpiece is caused to flow into the depressions sequentially for thereby forming an asymmetrical part of the article.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: October 29, 1991
    Assignees: Nissan Motor Co., Ltd., Mitsubishi Jukogyo Kabushiki
    Inventors: Ryoichi Takahashi, Tomoyoshi Sato, Hidehiko Tsukamoto, Kazuo Morimoto, Nobutaka Maeda
  • Patent number: 5036087
    Abstract: A clathrate compound comprising a water-soluble microbicide and at least one of (a) a bisphenol compound represented by formula (I) and (b) deoxycholic acid represented by formula (II):(a) bisphenol compound ##STR1## where X is a halogen atom, and R is a methylene, ethylidene, propylidene or isopropylidene group;(b) deoxycholic acid ##STR2##
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: July 30, 1991
    Assignee: Kurita Water Industries, Ltd.
    Inventors: Hideo Sugi, Ayako Sekikawa, Ryoichi Takahashi
  • Patent number: 4996220
    Abstract: A clathrate compound is produced if a powdery host compound which reacts with a microbicide to form the clathrate compound is added into an aqueous solution of the microbicide. If the microbicide is separated from the clathrate compound, a microbicide of high purity can be obtained.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: February 26, 1991
    Assignee: Kurita Water Industries Ltd.
    Inventors: Ayako Sekikawa, Hideo Sugi, Ryoichi Takahashi
  • Patent number: 4973700
    Abstract: A clathrate compound is produced if a powdery host compound which reacts with a microbicide to form the clathrate compound is added into an aqueous solution of the microbicide. If the microbicide is separated from the clathrate compound, a microbicide of high purity can be obtained.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: November 27, 1990
    Assignee: Kurita Water Industries Ltd.
    Inventors: Ayako Sekikawa, Hideo Sugi, Ryoichi Takahashi
  • Patent number: 4840439
    Abstract: The present invention is directed to a display cabinet provided with a compartment. The compartment is divided into at least two spaces by a shelf for storing and displaying merchandise. The shelf is provided with a frame element which is slidably supported thereon. The frame element is supported on the shelf with a gap therebetween and determines the storage space for merchandise when the frame is placed in its normal position. When the frame element is pulled forward, the merchandise on the shelf is gathered by the frame and pushed to the front of the shelf for easy access. This also forms a space for loading additional merchandise in the back of the shelf. A stopper element is disposed at the front of the shelf to prevent merchandise from falling off the shelf when the frame element is pulled forward.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: June 20, 1989
    Assignee: Sanden Corporation
    Inventors: Kenichi Nara, Ryoichi Takahashi
  • Patent number: 4837516
    Abstract: A tuning device for an NMR imaging apparatus capable of functioning responsively and accurately in the presence of a strong magnetic field. The device includes LC circuit formed by coils and tuners including variable capacitors, and ultrasonic motors which tunes the LC circuits to a resonant frequency by adjusting the variable capacitors. An NMR imaging apparatus including this tuning device is also disclosed.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: June 6, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ryoichi Takahashi
  • Patent number: 4817133
    Abstract: According to the party selecting circuit arrangement of a telephone of the present invention, an owner of the telephone can avoid a mischievous call or an erroneous call since it is so arranged that a call sound is discharged through the speaker only when the number given by the party other than the owner of the telephone is coincident with the telephone number stored as a secret number in the memory circuit of the telephone. Moreover, the party selecting circuit arrangement according to the present invention enables the owner of the telephone to identify the other party before he or she answers the call since an indicating element which indicates the number of the auto-dialing operation button provided correspondingly to the memory circuit storing the secret telephone number is turned on only at the above-described time.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: March 28, 1989
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryoichi Takahashi, Seiichi Ogawa, Isao Ohtawara
  • Patent number: 4811585
    Abstract: A pair of dies are provided of which die faces are formed with depressions sequentially brought into engagement with a particular portion of a workpiece as the workpiece rolls between the die faces. By compressing the workpiece while driving the same to roll between the die faces, an excess metal of the workpiece is caused to flow into the depressions sequentially for thereby forming an asymmetrical part of the article.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: March 14, 1989
    Assignees: Nissan Motor Co., Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Ryoichi Takahashi, Tomoyoshi Sato, Hidehiko Tsukamoto, Kazuo Morimoto, Nobutaka Maeda
  • Patent number: 4802202
    Abstract: A telephone call selector in a telephone which comprises a memory circuit for storing a plurality of telephone numbers; an automatic dialing device operable to read out one of the telephone numbers from the memory circuit and to output a dialed signal representative of such one of the telephone numbers; a comparator for comparing a number, corresponding to a DTMF signal transmitted from a calling party subsequent to the receipt of a ringing signal generated from a local telephone of the calling party, with any one of identifier codes; and a loudspeaker device for emitting ringing sounds when the the number corresponding to the DTMF signal coincides with such one of the identifier codes. The telephone numbers stored in the memory circuit are utilized as the respective identifier codes.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: January 31, 1989
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryoichi Takahashi, Seiichi Ogawa, Isao Ohtawara
  • Patent number: 4744611
    Abstract: A display case is provided with a compartment which stores merchandise for display and is divided into at least two chambers by a partition plate to enable storing different types of merchandise, each of which types is to be held under a predetermined temperature. These chambers communicate with one another through a communication gap which is defined between the partition plate and the window of the case and the opening and closing of the gap is controlled by a sealing mechanism to vary the temperature conditions within each chamber. The sealing mechanism includes a sealing element which is movably engaged with the partition plate and a retaining element is fastened on the partition plate to hold the selected position of the sealing element. Thus, the opening and closing control of the gap is easily operated without interfering with the visibility of the merchandise.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: May 17, 1988
    Assignee: Sanden Corporation
    Inventors: Fumiyasu Tamura, Kenichi Nara, Ryoichi Takahashi
  • Patent number: 4242196
    Abstract: The mass production system disclosed herein provides a method for producing highly aromatic petroleum pitch, comprising, preheating a liquefied petroleum residuum to a temperature of 450.degree.-520.degree. C. by passing the same through a tubular heater for 0.5-15 minutes, feeding the preheated residuum into a reaction vessel, thermally cracking the same by introducing an inert gas heated to a temperature of 400.degree.-2,000.degree. C. through a heating furnace into the reaction vessel for direct contact with the residuum for 0.5-10 hours, and adjusting to be coincident the ratio of the number of feeding flow lines for the preheated residuum from the tubular heater into the reaction vessels to the total number of reaction vessels with the ratio of the charging time .theta.C required for charging one reaction vessel with one feeding flow of preheated residuum to the total time .theta.T required for carrying out one batch of the thermal cracking in one reaction vessel.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: December 30, 1980
    Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Sumikin Coke Co., Ltd, Sumitomo Metal Industries, Ltd.
    Inventors: Takaaki Aiba, Ryoichi Takahashi, Takuji Hosoi, Tutomu Konno
  • Patent number: D318486
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: July 23, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ei Yamamoto, Ryoichi Takahashi, Minoru Aoyama, Mitsuru Sakurai
  • Patent number: D319464
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: August 27, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoichi Takahashi, Yutaka Ban, Naoki Fuei, Masataka Isomoto