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).
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Patent number: 5133969Abstract: 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: GrantFiled: November 28, 1990Date of Patent: July 28, 1992Assignee: Kurita Water Industries Ltd.Inventors: Ayako Sekikawa, Hideo Sugi, Ryoichi Takahashi, Kenji Tahara
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Patent number: 5082654Abstract: 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: GrantFiled: October 19, 1989Date of Patent: January 21, 1992Assignee: Kurita Water Industries Ltd.Inventors: Hideo Sugi, Ryoichi Takahashi, Kenji Tahara
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Patent number: 5079000Abstract: 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: GrantFiled: November 20, 1989Date of Patent: January 7, 1992Assignee: Kurita Water Industries Ltd.Inventors: Ryoichi Takahashi, Tsuneo Mukai, Shigeyuki Mayama
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Patent number: 5063933Abstract: 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: GrantFiled: June 13, 1990Date of Patent: November 12, 1991Assignee: Kabushiki Kaisha ToshibaInventor: Ryoichi Takahashi
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Patent number: 5060497Abstract: 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: GrantFiled: April 24, 1990Date of Patent: October 29, 1991Assignees: Nissan Motor Co., Ltd., Mitsubishi Jukogyo KabushikiInventors: Ryoichi Takahashi, Tomoyoshi Sato, Hidehiko Tsukamoto, Kazuo Morimoto, Nobutaka Maeda
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Patent number: 5036087Abstract: 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: GrantFiled: January 10, 1989Date of Patent: July 30, 1991Assignee: Kurita Water Industries, Ltd.Inventors: Hideo Sugi, Ayako Sekikawa, Ryoichi Takahashi
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Patent number: 4996220Abstract: 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: GrantFiled: April 9, 1990Date of Patent: February 26, 1991Assignee: Kurita Water Industries Ltd.Inventors: Ayako Sekikawa, Hideo Sugi, Ryoichi Takahashi
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Patent number: 4973700Abstract: 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: GrantFiled: January 10, 1989Date of Patent: November 27, 1990Assignee: Kurita Water Industries Ltd.Inventors: Ayako Sekikawa, Hideo Sugi, Ryoichi Takahashi
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Patent number: 4840439Abstract: 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: GrantFiled: May 24, 1988Date of Patent: June 20, 1989Assignee: Sanden CorporationInventors: Kenichi Nara, Ryoichi Takahashi
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Patent number: 4837516Abstract: 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: GrantFiled: July 22, 1988Date of Patent: June 6, 1989Assignee: Kabushiki Kaisha ToshibaInventor: Ryoichi Takahashi
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Patent number: 4817133Abstract: 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: GrantFiled: September 14, 1987Date of Patent: March 28, 1989Assignee: Sanyo Electric Co., Ltd.Inventors: Ryoichi Takahashi, Seiichi Ogawa, Isao Ohtawara
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Patent number: 4811585Abstract: 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: GrantFiled: March 30, 1987Date of Patent: March 14, 1989Assignees: Nissan Motor Co., Ltd., Mitsubishi Jukogyo Kabushiki KaishaInventors: Ryoichi Takahashi, Tomoyoshi Sato, Hidehiko Tsukamoto, Kazuo Morimoto, Nobutaka Maeda
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Patent number: 4802202Abstract: 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: GrantFiled: September 3, 1987Date of Patent: January 31, 1989Assignee: Sanyo Electric Co., Ltd.Inventors: Ryoichi Takahashi, Seiichi Ogawa, Isao Ohtawara
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Patent number: 4744611Abstract: 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: GrantFiled: April 3, 1986Date of Patent: May 17, 1988Assignee: Sanden CorporationInventors: Fumiyasu Tamura, Kenichi Nara, Ryoichi Takahashi
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Patent number: 4242196Abstract: 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: GrantFiled: October 27, 1978Date of Patent: December 30, 1980Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Sumikin Coke Co., Ltd, Sumitomo Metal Industries, Ltd.Inventors: Takaaki Aiba, Ryoichi Takahashi, Takuji Hosoi, Tutomu Konno
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Patent number: D318486Type: GrantFiled: July 28, 1989Date of Patent: July 23, 1991Assignee: Canon Kabushiki KaishaInventors: Ei Yamamoto, Ryoichi Takahashi, Minoru Aoyama, Mitsuru Sakurai
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Patent number: D319464Type: GrantFiled: December 6, 1989Date of Patent: August 27, 1991Assignee: Canon Kabushiki KaishaInventors: Ryoichi Takahashi, Yutaka Ban, Naoki Fuei, Masataka Isomoto