Patents by Inventor Hiroshi Nakajima
Hiroshi Nakajima 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: 5848635Abstract: A continuous casting device includes a pair of cooling rolls (1, 2) that rotate in opposite directions to each other. A pair of side weirs (11) have inner surfaces (11a) that covers the end surfaces (1a, 2a) of the cooling rolls (1, 2) and circular surfaces (12b) that covers the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2). At least one of the side weirs (11) is movable in an axial direction of the cooling rolls (1, 2). The continuous casting device also includes electromagnets for forming a magnetic flux in a direction parallel with a contact surface of the side weirs (11) with the molten metal (4) the contact surface extending along the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) at the portions opposite to the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) of the side weirs (11).Type: GrantFiled: July 25, 1996Date of Patent: December 15, 1998Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Tatsufumi Aoi, Noriyuki Kawada, Hiroshi Nakajima, Kenichi Unoki, Motomi Nakashima, Youichi Wakiyama
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Patent number: 5834916Abstract: A control unit for an industrial robot comprising a speed command device for outputting a speed command signal for the industrial robot and a servo control device which outputs to a servo motor of each of a plurality of axes of rotation of the industrial robot, in response to the speed command signal, an electric current corresponding to the speed command signal. The servo control performs feedback control of the industrial robot, in response to a signal from an encoder of each of the axes of rotation of the industrial robot, so as to actuate the servo motor at a speed designated by the speed command signal. The speed command device includes a comparison member for comparing an actual speed of the industrial robot calculated from a pulse train of a signal returning from the encoder with the speed designated by the speed command signal.Type: GrantFiled: August 20, 1996Date of Patent: November 10, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigeru Shimogama, Hiroshi Nakajima, Yoshinori Sasaki
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Patent number: 5812998Abstract: A grouped data base 10 includes a plurality of sub-databases 10A, in which data have been stored, for respective ones of data sets having specific classification data ("male", "female", "annual income of 20,000,000 yen or more"). The grouped data base 10 is searched in accordance with a given search condition. Given search conditions are stored successively in a search-result data base 11. The sub-data bases 10A contained in the grouped data base 10 are reorganized so as to be in line with those given search conditions that have a high frequency of occurrence.Type: GrantFiled: March 29, 1996Date of Patent: September 22, 1998Assignee: Omron CorporationInventors: Yasuhiro Tsutsumi, Toshihiro Tashima, Hiroshi Nakajima
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Patent number: 5796618Abstract: A machining information determination system and method for operating the same in which control data and optimum machining information of a machine tool can be determined automatically from the comparison of a model having the shape of a workpiece before machining and a model having the shape of the workpiece after machining. A CAD apparatus creates before- and after-machining workpiece shape information based on before- and after-machining models of the workpiece. Information regarding the material of the workpiece and stage of machining to be applied to the workpiece is entered via an input unit. Based on the information from the CAD apparatus and the input unit, a machining determination apparatus determines the optimum machining information for machining the workpiece. The optimum machining information and the information from the CAD apparatus is inputted into a CAM apparatus, which creates NC data, applied to the workpiece via a machine tool.Type: GrantFiled: April 7, 1995Date of Patent: August 18, 1998Assignee: Omron CorporationInventors: Tadasu Maeda, Koji Ota, Masaki Arao, Taiji Sogou, Hiroshi Nakajima, Norichika Miyamoto, Susumu Ishiguro, Motoji Hayashi
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Patent number: 5784119Abstract: In a video decoding device, a system decoding section analyzes header information included in multiplex data and performs various operations, including the separation of data, on the basis of the header information. An STC (System Time Clock) counter generates, based on an SCR (System Clock Reference)/PCR (Program Clock Reference) which is time reference data included in the multiplex data, a system clock synchronous to the system clock of a coding device. A video decoding section decodes video data included in the multiplex data in response to the system clock. Also, the video decoding section generates a clock for video display synchronous to the system clock and outputs the decoded video data in response to the clock for video display.Type: GrantFiled: February 26, 1996Date of Patent: July 21, 1998Assignee: Oki Electric Industry Co., Ltd.Inventors: Yasumasa Noda, Eiitsu Goto, Hiroshi Nakajima
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Patent number: 5758030Abstract: The present invention provides an apparatus and method in which it is possible to set information retrieval conditions wherein the user's intention in performing retrieval is reflected satisfactorily, and in which fuzzy retrieval can be performed in accordance with the retrieval conditions thus set. According to the present invention, the user, in the setting of retrieval conditions, is capable of freely connecting preconditions, which represent the desired conditions with regard to attribute signals in a data base, using one or a plurality of MEAN, MIN and MAX operations. Accordingly, it is possible to set retrieval conditions that fully reflect the intentions of the user. Moreover, fuzzy retrieval processing in accordance with retrieval conditions set by the user is executed and retrieved results reflecting the intentions of the user are obtained.Type: GrantFiled: December 10, 1996Date of Patent: May 26, 1998Assignee: Omron CorporationInventor: Hiroshi Nakajima
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Patent number: 5751918Abstract: A robot includes a robot body to which the procedure of a task is teachable, a teaching portion, an operating portion, a control portion, and a changeover portion. The teaching portion includes a signal generating portion for generating a drive signal for driving the robot body, and a deadman switch which indicates by its opened/closed state whether the procedure of the task is being taught to the robot body or not. The operating portion generates a start signal for starting the robot body. The control portion receives the drive signal and a signal indicating the opened/closed state of the deadman from the teaching portion and the start signal from the operating portion. The changeover portion operates so that the start signal from the operating portion is prevented from being supplied to the control portion when the teaching portion is electrically connected to the control portion.Type: GrantFiled: February 21, 1997Date of Patent: May 12, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigeru Shimogama, Hiroshi Nakajima, Kazunori Matsumoto
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Patent number: 5680606Abstract: Data stored in a data base (21) includes crisp numbers expressed by definite numerical values, fuzzy numbers expressed by attaching "about" to numerical values, and fuzzy labels represented by fuzzy language. Status codes are used to distinguish these types of data, and data is stored in the data base (21) upon attaching the status codes thereto. Membership function data accessed using data and the status codes attached thereto is stored in a fuzzy data dictionary (22). When a retrieval condition has been given, data related to this retrieval condition is retrieved in the data base (21). If this data is data involving a fuzzy concept, the membership function data corresponding to this data is extracted from the fuzzy data dictionary (22). Fuzzy-retrieval execution means (20) calculates the degree of membership of the membership function data with respect to the retrieval condition and outputs the result through an output unit (24).Type: GrantFiled: December 22, 1993Date of Patent: October 21, 1997Assignee: Omron CorporationInventors: Hiroshi Nakajima, Toshimi Kudo, Motoji Hayashi
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Patent number: 5663322Abstract: The present invention is directed to diadenosine tetraphosphate (AP4A) tetrasodium salt dodecahydrate crystals represented by the following structure: ##STR1## Compared with the conventional amorphous anhydride of AP4A tetrasodium salt, the AP4A tetrasodium salt dodecahydrate crystals of the present invention have a low hygroscopicity and very stable physical properties. During storage, they are scarcely affected by environmental humidity. Thus, the present crystals can be easily handled as a medicine or a starting material for preparing a medicine, which broadens their application range.Type: GrantFiled: January 4, 1996Date of Patent: September 2, 1997Assignee: Unitika Ltd.Inventors: Tatsuo Katayama, Yoshihiro Nishikawa, Mayumi Hayashi, Hiroshi Nakajima, Masahiro Ozaki, Daiichi Watanabe
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Patent number: 5651100Abstract: A threshold value is set in advance for each of a number of conclusions. Possibility values of conclusions obtained from an approximate reasoning apparatus are compared with the corresponding threshold values, and a conclusion whose possibility value is equal to or greater than its threshold value is outputted (displayed). When information indicative of an error is entered with regard to a conclusion whose possibility value is equal to or greater than the corresponding threshold value but which actually does not hold true, or a conclusion whose possibility value is less than the corresponding threshold value but which actually does hold true, the threshold value concerning the conclusion that has produced the error is revised dynamically. The weights of conclusions are set. By multiplying the possibility value of a conclusion from an approximate reasoning apparatus by the weight set for this conclusion, a score is calculated for every conclusion.Type: GrantFiled: June 12, 1991Date of Patent: July 22, 1997Assignee: Omron CorporationInventors: Motoji Hayashi, Hiroshi Nakajima
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Patent number: 5646283Abstract: This invention relates to a novel tetracyclic compound represented by formula (I): ##STR1## or its pharmacologically-acceptable salt. The compound of this invention has strong immunosuppressive activity, and is useful as an immunosuppressive agent and as an agent for treating autoimmune disease.Type: GrantFiled: May 22, 1995Date of Patent: July 8, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Fumio Suzuki, Yoshisuke Nakasato, Hiroshi Tsumuki, Soichiro Sato, Tadafumi Tamura, Hiroshi Nakajima
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Patent number: 5610045Abstract: A process is described for cultivating thermophilic bacteria of the genus Bacillus having the ability to produce acetate kinase, wherein said cultivation is carried out continuously at a dilution rate (D) in the range from about 0.9 .mu..sub.max to 1.0 .mu..sub.max, wherein D is the dilution rate (1/hr), and .mu..sub.max is the maximum specific growth rate (1/hr), to thereby produce bacterial cells having a high content of acetate kinase.Type: GrantFiled: June 2, 1995Date of Patent: March 11, 1997Assignee: Unitika Ltd.Inventors: Masao Kageyama, Toyohiko Suga, Kenzo Motosugi, Hiroshi Nakajima
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Patent number: 5583966Abstract: The present invention provides an apparatus and method in which it is possible to set information retrieval conditions wherein the user's intention in performing retrieval is reflected satisfactorily, and in which fuzzy retrieval can be performed in accordance with the retrieval conditions thus set. According to the present invention, the user, in the setting of retrieval conditions, is capable of freely connecting preconditions, which represent the desired conditions with regard to attribute signals in a data base, using one or a plurality of MEAN, MIN and MAX operations. Accordingly, it is possible to set retrieval conditions that fully reflect the intentions of the user. Moreover, fuzzy retrieval processing in accordance with retrieval conditions set by the user is executed and retrieved results reflecting the intentions of the user are obtained.Type: GrantFiled: March 14, 1994Date of Patent: December 10, 1996Assignee: Omron CorporationInventor: Hiroshi Nakajima
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Patent number: 5571524Abstract: An agent for curing ischemic myocardial disease which contains an effective amount of diadenosine 5',5'"-p.sup.1,p.sup.4 -tetraphosphate (Ap4A) of formula (I): ##STR1## or a pharmaceutically-acceptable salt thereof.Type: GrantFiled: June 6, 1995Date of Patent: November 5, 1996Assignees: Unitika Ltd., Fujirebio, Inc.Inventors: Masafumi Kitakaze, Masatsugu Hori, Takenobu Kamada, Hiroshi Nakajima, Akihiro Sekine, Tetsuaki Yamaura
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Patent number: 5571683Abstract: A .beta.-glucan detection reagent includes a horseshoe crab hemocyte lysate containing an endotoxin neutralizing peptide and a chromogenic substrate. The reagent provides a very sensitive method for detecting .beta.-glucans and is therefore useful as a diagnostic agent such as for detection of nosomycosis.Type: GrantFiled: October 12, 1994Date of Patent: November 5, 1996Assignee: Maruha CorporationInventors: Hiroshi Nakajima, Hisashi Yamamoto, Junko Cho
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Patent number: 5556138Abstract: Connection of two dividing flanges by joining of protrusion and depression, protrusion and depression, and protrusion and notch, in addition to tightening and joining by means of self-tapping screw to create the connecting flange. At this time, the hexagonal nut is located beforehand in the insertion hole created on dividing flange, and the hexagonal bolt passed from the connecting flange on the side for connection is screwed to the hexagonal nut.Type: GrantFiled: March 28, 1995Date of Patent: September 17, 1996Assignee: Nippondenso Co., Ltd.Inventors: Hiroshi Nakajima, Toshio Tsuboko
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Patent number: 5501965Abstract: This invention relates to a process for the production of fructose 2,6-bisphosphate which comprises effecting reactions among (i) fructose 6-phosphate, (ii) glucose, (iii) fructose or (iv) glucose 6-phosphate, ATP and a phosphate donor, in the presence of (i) fructose 6-phosphate 2-kinase (PFK 2) and an enzyme which converts ADP into ATP (ADP/ATP converting enzyme), (ii) PFK 2, an ADP/ATP converting enzyme, hexokinase or glucokinase and glucose 6-phosphate isomerase, (iii) PFK 2, an ADP/ATP converting enzyme and hexokinase or glucokinase, or (iv) PFK 2, an ADP/ATP converting enzyme and glucose 6-phosphate isomerase; to a process for the production of fructose 2,6-bisphosphate which comprises allowing diesterase to coexist in a solution containing fructose 1,2-cyclic, 6-bisphosphate; and to a process for the purification of fructose 2,6-bisphosphate which comprises adding zinc salt to a solution containing fructose 2,6-bisphosphate, removing formed precipitate of impurities and adding a zinc salt to the resultType: GrantFiled: March 16, 1994Date of Patent: March 26, 1996Assignee: Unitika Ltd.Inventors: Ken Iwata, Tatsuo Katayama, Hiroshi Nakajima
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Patent number: 5453497Abstract: A novel process for producing derivatives of the anti-tumor agent N.sup.4 -acyl-5'-deoxy-5-fluorocytidine using the novel 5'-deoxy-5-fluoro-N.sup.4, 2'-0,3'-0-triacylcytidine derivatives as intermediates is provided.5-Deoxy-1,2,3-tri-0-acyl-.beta.-D-ribofuranoside is reacted with 5-fluorocytosine to produce 5'-deoxy-2',3'-di-0-acyl-5-fluorocytidine, followed by acylation, to produce the novel intermediate 5'-deoxy-5-flouro-N.sup.4,2'-0,3'-0-triacylcytidine. The acyl radicals of this intermediate are selectively de-0-acylated to obtain N.sup.4 -acyl-5'-deoxy-5-fluorocytidine derivatives. From fluorocytosine, N.sup.4 -acyl-5'-deoxy-5-fluorocytidine derivatives can be obtained through few steps in high yield, an in satisfactory purity.Type: GrantFiled: December 16, 1993Date of Patent: September 26, 1995Assignees: Hoffmann-La Roche Inc., Fuji Kagaku Kogyo Kabushiki KaishaInventors: Takashi Kamiya, Makoto Ishiduka, Hiroshi Nakajima
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Patent number: 5439986Abstract: A thermo-curable resin composition which contains (a) an aromatic polyamide oligomer having polymerizable unsaturated group(s) at both terminals or within side chain(s), (b) a maleimide compound and (c) an epoxy resin; and a copper foil laminate which comprises impregnating said composition into substrates, followed by bonding by co-pressing copper foils is provided. The copper-clad laminate of the present invention has excellent adhesiveness to copper foil, heat resistance and electrical properties.Type: GrantFiled: November 16, 1993Date of Patent: August 8, 1995Assignee: Showa Highpolymer Co., Ltd.Inventors: Tadayuki Hosogane, Hiroshi Nakajima, Eiichiro Takiyama
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Patent number: 5434255Abstract: A process for the purification of fructose 1,6-diphosphate which comprises subjecting a fructose 1,6-diphosphate-containing solution to anion exchange column chromatography to separate fructose 1,6-diphosphate therefrom, and subsequently subjecting the resulting FDP fraction to a desalting treatment, so as to provide a highly purified FDP preparation useful as a pharmaceutical drug and the like in a high yield.Type: GrantFiled: March 26, 1993Date of Patent: July 18, 1995Assignee: Unitika Ltd.Inventors: Tatsuo Katayama, Hayato Ishihara, Kenji Okada, Masaaki Onda, Hiroshi Nakajima