Patents by Inventor Kazuhiro Takagi
Kazuhiro Takagi 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: 6498028Abstract: It is an object of the invention to improve a conventional soil percolation technique to thereby provide a method of enriching and isolating decomposing bacteria decomposing an organochlorine agricultural chemical PCNB which is difficult to decompose, in a short time period, and to provide decomposing bacteria for efficiently processing PCNB. To practice the method, an enrichment soil layer 2 is formed by mixing a soil containing an organochlorine agricultural chemical PCNB with a fragmented porous material having an infinite number of micropores and at the same time a greater adsorptivity for adsorbing PCNB than the soil, and an inorganic salt medium 3 containing a carbon and nitrogen source, the carbon and nitrogen source being formed by only PCNB, is circulated through the enrichment soil layer 2, thereby enriching the aerobic bacteria Burkholderia cepacia in the fragmented porous material.Type: GrantFiled: March 24, 2000Date of Patent: December 24, 2002Assignee: National Institute for Agro-Environmental Science Independent Administrative InstituteInventors: Kazuhiro Takagi, Yuuichi Yoshioka
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Publication number: 20020182742Abstract: To provide an examination method of buffer capacity of saliva and an examination instrument of buffer capacity of saliva, by which the buffer capacity of saliva of a subject can be examined simply without being influenced by an amount of saliva and preciously without being influenced by the subjectivity of an examiner, an end portion of an absorptive material in a predetermined shape, containing a pH indicator at least having one or more color transition range of pH 4.0 to 7.0 and an acid, is dipped in saliva to allow the saliva to penetrate into the absorptive material, and a buffer capacity of the saliva is examined from a distance where a color to be exhibited by the pH indicator has changed by the penetrated saliva from a predetermined place of the absorptive material and a distance where the saliva has penetrated from a predetermined place of the absorptive material.Type: ApplicationFiled: April 25, 2002Publication date: December 5, 2002Applicant: GC CorporationInventors: Kazuhiro Takagi, Junichi Okada, Yoshiko Watanabe
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Patent number: 6451580Abstract: A porous material having a greater adsorptivity for adsorbing organic contaminants, such as agricultural chemicals, than a target soil, is fragmented. The fragmented porous material is mixed into a soil which the decomposing bacteria inhabit, thereby forming an enrichment soil layer. Through the enrichment soil layer, there is circulated an inorganic salt medium containing carbon and nitrogen sources formed by only an organic contaminant to be decomposed, thereby rapidly enriching the decomposing bacteria in the fragmented porous material. The fragmented porous material is inoculated into new fragmented porous material to form an enrichment layer consisting of the fragmented porous material only.Type: GrantFiled: August 23, 1999Date of Patent: September 17, 2002Assignee: National Institute for Agro-Environmental Sciences Independent Administrative InstituteInventors: Kazuhiro Takagi, Yuuichi Yoshioka
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Patent number: 6348460Abstract: A 1,2,3-thiadiazole derivative represented by general formula (I): [wherein R1 is hydrogen atom, halogen atom, (C1-C6) alkyl, phenyl, etc., R2 is the following group (A) or group (B): (wherein R3 is halogen atom, cyano, etc., R4 is hydrogen atom, halogen atom, cyano, etc., X and Y, same or different, are oxygen atom or sulfur atom, n is 0-3, R5 is hydrogen atom, (C1-C20) alkyl, etc., R6 is (C1-C20) alkyl, (C2-C20) alkenyl, etc., and m is 0-2)]; a plant disease controller containing said compound as active ingredient; and a method for using said controller.Type: GrantFiled: November 10, 1999Date of Patent: February 19, 2002Assignee: Nihon Nohyaku Co., Ltd.Inventors: Kenji Tsubata, Takashi Shimaoka, Tateki Nishida, Kazuhiro Takagi, Koji Baba, Sohkichi Tajima
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Patent number: 6337341Abstract: A 1,2,3-thiadiazole derivative represented by general formula (I) or a salt thereof: wherein R1 is H, (halo) C1-C4 alkyl, 5- or 6-membered heterocycle containing 1 to 3 same or different O, N or S or the like, A is a group of the following formulas: wherein R2 and R3 are H, halogen, cyano, formyl, alkylthio, alkoxycarbonyl, substituted or unsubstituted phenyl, or the like, or R2 and R3, taken conjointly, may form a 3- to 7-membered ring including a C2-C6 alkylene group which may be intercepted by —O—, —S(O)n— (n is 0-2), —CO— or —NR8— (R8 is H, halogen or the like), B is cyano or an unsubstituted or substituted 5- or 6-membered heterocycle containing 1-3 hetero atoms selected from O, N and S, and m is 0-4; salts thereof; an agrohorticultural disease controller containing said derivative or salt; and method for using said disease controller.Type: GrantFiled: September 19, 2000Date of Patent: January 8, 2002Assignee: Nihon Nohyaku Co., Ltd.Inventors: Kenji Tsubata, Takashi Shimaoka, Osamu Sampei, Yoshitaka Taniyama, Kazuhiro Takagi, Tsutomu Nishiguchi, Sohkichi Tajima
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Patent number: 6313154Abstract: A bis-thiadiazole derivative represented by general formula (I): wherein R1 and R2 represent H, C1-C8 alkyl, halo C1-C4 alkyl, unsubstituted or substituted phenyl, 5- or 6-membered heterocycle containing 1 to 3 hetero atoms selected from O, S and N, or the like; X1 and X2 represent O or S; Y1 and Y2 represent O, S or —N(R3)—; R represents C0-C30 alkylene. —(C)a(R3)(R4)— (R3 and R4 represent H, halogen, OH, C1-C4 alkyl, halo C1-C4 alkyl or the like) or the like; and a is 0 to 30; or a salt thereof, and an agrohorticultural disease controller containing said derivative or salt as an active ingredient.Type: GrantFiled: March 26, 1999Date of Patent: November 6, 2001Assignee: Nihon Nohyaku Co., Ltd.Inventors: Kenji Tsubata, Takashi Shimaoka, Kazuhiro Takagi, Koji Baba, Sohkichi Tajima
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Patent number: 6194444Abstract: A 1,2,3-thiadiazole derivative represented by general formula (I) or a salt thereof: wherein R1 is H, (halo) C1-C4 alkyl, 5- or 6-membered heterocycle containing 1 to 3 same or different O, N or S, A is a group of the following formulas: wherein R2 and R3 are H, halogen, cyano, formyl, alkylthio, alkoxycarbonyl, substituted or unsubstituted phenyl, B is cyano or an unsubstituted or substituted 5- or 6-membered heterocycle containing 1-3 hetero atoms selected from O, N and S, and m is 0-4; an agrohorticultural disease controller containing said derivative.Type: GrantFiled: March 26, 1999Date of Patent: February 27, 2001Assignee: Nihon Nohyaku Co., LTDInventors: Kenji Tsubata, Takashi Shimaoka, Osamu Sampei, Yoshitaka Taniyama, Kazuhiro Takagi, Tsutomu Nishiguchi, Sohkichi Tajima
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Patent number: 5766465Abstract: The present invention is directed to provide a water treatment technology able to perform advanced purification treatment by efficiently removing synthetic organic compounds such as surface activators for use in cleaners and agricultural chemicals present in polluted water having a relatively low load of pollutants such as BOD. In order to accomplish this objective, water to be treated is brought in contact with a assimilable filter medium under aerobic conditions, said assimilable filter medium being composed by adhering a material to be assimilated that has specific assimilability for the target microorganisms to a porous base material such as charcoal. As a result of using this type of assimilable filter medium, specific microorganisms which are highly efficient for removing the synthetic organic pollutants to be removed can be utilized selectively, thereby enabling efficient removal of synthetic organic compounds.Type: GrantFiled: May 2, 1996Date of Patent: June 16, 1998Assignee: Toyo Denka Kogyo Co., Ltd.Inventors: Shinpei Yamamoto, Kazuhiro Takagi, Etutami Kiyotani, Iwane Kagimoto, Shinichi Kariya, Satoshi Matsumoto
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Patent number: 5608109Abstract: The present invention relates to a hydrazine derivative represented by the formula (I): ##STR1## (wherein each of Ar.sup.1 and Ar.sup.2 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted heteroaryl group, or the like, R.sup.1 is an alkyl group or the like, and A is a divalent radical having --C.dbd.N--N-- or --CH--NH--N-- as a fundamental skeleton), which is a useful compound as an agricultural and horticultural insecticide.Type: GrantFiled: December 7, 1994Date of Patent: March 4, 1997Assignee: Nihon Nohyaku Co., Ltd.Inventors: Kazuhiro Takagi, Tetsuji Ohshima, Nobuyoshi Hasegawa, Chiaki Katoh, Atsushi Kanaoka, Hideo Kanno
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Patent number: 5587101Abstract: The object of the present invention is to provide a gas injection nozzle which is used for pouring liquid metal and which is prevented from being blocked in the course of continuous casting. According to the present invention, a gas injection nozzle for pouring liquid metal is provided, wherein(a) the nozzle consists of a porous refractory,(b) the circumference of the nozzle is surrounded by an iron shell which has a gas injection pipe, a band-like space (referred to as a gas pool hereinafter) which extends along the circumference of the nozzle perpendicular to an axis of the nozzle between the porous refractory and the iron shell, and(c) the gas pool is formed as a wavy, band-like space along at least one portion of the circumference of the nozzle.Type: GrantFiled: September 29, 1995Date of Patent: December 24, 1996Assignee: Tokyo Yogyo Kabushiki KaishaInventors: Hirokatsu Hattanda, Mitsukazu Ogiso, Yasuta Koike, Kazuhiro Takagi
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Patent number: 5543573Abstract: The present invention relates to a hydrazinecarboxamide derivative of the general formula (I) shown below: ##STR1## wherein the substituents are as defined in the specification, which has a wide insecticidal spectrum at a low dosage, a process for producing said derivative, and utilization of said derivative as an insecticide.Type: GrantFiled: April 14, 1994Date of Patent: August 6, 1996Assignee: Nihon Nohyaku Co., Ltd.Inventors: Kazuhiro Takagi, Takashi Ohtani, Tateki Nishida, Hiroshi Hamaguchi, Tetsuyoshi Nishimatsu, Atsushi Kanaoka
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Patent number: 5115660Abstract: A method for making sectionally deformed band plate feeds by cold-rolling metal band plate feeds between work rolls wherein at least one of the work rolls has a barrel provided with a circumferential groove, a plurality of metal band plate feeds with substantially equal resistance to deformation, while overlaid one upon another, are rolled together between the work rolls to a reduction ratio of 30% or lower at one feeding operation, and the resulting metal band plate feeds are separated from each other.Type: GrantFiled: August 22, 1990Date of Patent: May 26, 1992Assignee: Nisshin Steel Co., Ltd.Inventors: Jun Kurobe, Kenji Hara, Masayuki Ishihara, Kazuhiro Takagi
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Patent number: 4845232Abstract: A process for producing 1,2,4-triazolin-5-one derivatives represented by the general formula (I) ##STR1## wherein R is a haloalkyl group of 1 to 5 carbon atoms and R.sup.Type: GrantFiled: October 24, 1986Date of Patent: July 4, 1989Assignee: Nihon Nohyaku Co., Ltd.Inventors: Hisanori Matsui, Keiji Sutoh, Moriharu Yamamoto, Kazuhiro Takagi, Kunihiro Yabutani, Kuniaki Taninaka, Mitsuru Kajioka
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Patent number: 4546051Abstract: An aluminum coated steel sheet having excellent formability and corrosion resistance comprising a steel substrate of a recrystallized structure, an Al--Si coating layer of a recrystallized structure on at least one surface of the substrate, and a discontinuous intermediate layer of Al--Fe--Si intermetallic compounds. The product may be conveniently produced by rolling an Al--Si hot dipped steel sheet and annealing the rolled sheet under suitably selected conditions.Type: GrantFiled: June 12, 1984Date of Patent: October 8, 1985Assignee: Nisshin Steel Co., Ltd.Inventors: Yukio Uchida, Kazuhiro Takagi, Kiichiro Katayama, Hisao Kawase
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Patent number: 4309886Abstract: Low carbon steel strip is cold rolled with rolling reduction of 15 to 35% in final cold rolling step and annealed in form of tight coil at temperature of 520 to 600.degree. C. to provide product having grain size number of 4 to 7 and coercive force of not greater than 2.0 Oersted as measured with initial magnetization field of 25 Oersted. The product is especially suitable for manufacturing shadow mask of Braun tube for color TV.Type: GrantFiled: October 11, 1979Date of Patent: January 12, 1982Assignees: Nisshin Steel Co., Ltd., Dai Nippon Printing Co., Ltd.Inventors: Michio Kubota, Takeshi Tsuda, Masahiro Shimose, Kazuhiro Takagi, Yasuo Imamura, Kazunori Kato
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Patent number: 4294632Abstract: Method for overaging hot dip metal coated steel material to improve formability, comprising rapidly heating the material to a temperature of above 300.degree. C. but below that at which the coating is undesirably denatured at heating rate of at least 50.degree. C./sec., followed by controlled slow cooling of cooling rate of not more than 20.degree. C./sec. Total processing time required can be one or two minutes, thus the method can be continuously carried out.Type: GrantFiled: September 24, 1979Date of Patent: October 13, 1981Assignee: Nisshin Steel Co., Ltd.Inventors: Michio Kubota, Kazuhiro Takagi, Yorimasa Mitani
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Patent number: 4271571Abstract: In process for manufacturing shadow mask of Braun tube for color TV comprising steps of subjecting strip of low carbon steel to cold rolling finish, forming holes in the rolled material, cutting it into individual flat masks, annealing each mask at elevated temperatures, conditioning the annealed mask and press-forming the mask into desired shape, the improvement residing in controlling the finish cold rolling reduction within the range between 10 and 35%, whereby the annealing temperature is reduced to 520.degree. to 750.degree. C. The process is applicable to steel strip material containing up to 0.10% by weight of carbon.Type: GrantFiled: October 11, 1979Date of Patent: June 9, 1981Assignees: Nisshin Steel Co., Ltd., Dai Nippon Printing Co. Ltd.Inventors: Takeshi Tsuda, Michio Kubota, Kazuhiro Takagi, Masahiro Shimose, Yasuo Imamura, Kazunori Kato