Patents by Inventor Isao Takahashi
Isao 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: 6013363Abstract: A laminate which contains the following layers:(I) a stretched microporous resin film base layer having an opacity of at least 80%;(Ia) a heat sealable adhesive resin layer on the back side of the base layer;(II) a gas barrier resin film layer on the surface side of the base layer; and(III) an inorganic oxide thin film layer on the surface side of the gas barrier resin film layer,wherein the laminate:(i) has a water vapor permeability of at most 5 g/m.sup.2 .multidot.24 hr, and(ii) has an oxygen permeability of at most 5 cc/m.sup.2 .multidot.24 hr.multidot.atm.The laminate is useful, for example, for packaging a variety of articles, e.g., edible products, in which taste and freshness are desirably preserved during transportation and storage thereof.Type: GrantFiled: March 17, 1998Date of Patent: January 11, 2000Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Isao Takahashi, Junichi Yasuda, Mitsuru Matsuyama
-
Patent number: 5710600Abstract: A composite electronic apparatus consisting of a video and audio signal processing portion including image displaying circuits for displaying images based on a video signal and sound reproducing circuits for reproducing a sound based on an audio signal, a position detecting portion for conducting positional detection to produce position data representing a detected position, a data reproducing portion operative to read information from a record medium and to reproduce map data or video or audio data on the basis of the information read from the record medium, a data processing portion for causing the position data and the map data to be subjected to predetermined data processing, a video signal transmitting portion operative to produce a video signal for image display on the basis of the position data and the map data subjected to the predetermined data processing and to transmit the video signal for image display to the image displaying circuits so that images displayed by the image displaying circuits, andType: GrantFiled: May 11, 1995Date of Patent: January 20, 1998Assignee: Sony CorporationInventors: Masayuki Ishii, Isao Takahashi, Hiroyuki Kojima
-
Patent number: 5627941Abstract: The number of hidden layers is no larger than 2 and a sum is determined for each case. A relationship between the sum of the inputs and teaching data for each case is expressed in a table in a descending order of the sum of inputs for each output of an output layer, and the teacher data for the maximum sum and the number of times of change in the teacher data are considered. A configuration (the number of hidden layers and the number of neurons thereof) is determined based on those data, and the coupling weights can be analytically calculated by using the table. Where the number of times of change of the teacher data is odd, some inputs do not route a second hidden layer.Type: GrantFiled: August 25, 1993Date of Patent: May 6, 1997Assignee: Hitachi, Ltd.Inventors: Isao Takahashi, Fumihiro Endo, Tokio Yamagiwa
-
Patent number: 5598509Abstract: In a recognition/diagnosis method, a relation between total sums of inputs of respective cases and teacher data is listed in the order of magnitude of the total sums of inputs. Based on the value of the teacher data for the input having the maximum total sum and the number of times of change of teacher data in the table are considered, a configuration of a neural network (the number of hidden layers and the number of neurons thereof) is determined. Coupling weights are analytically calculated based on the table.Type: GrantFiled: March 18, 1994Date of Patent: January 28, 1997Assignee: Hitachi, Ltd.Inventors: Isao Takahashi, Fumihiro Endo, Tokio Yamagiwa
-
Patent number: 5521009Abstract: The present invention relates to an insulated wire comprising a conductor and at least two insulating layers provided on the outer periphery of the conductor. The inner insulating layer is provided directly or via another insulation on the outer periphery of the conductor and comprises a polyolefin compound containing 20 to 80 parts by weight of at least one substance selected from ethylene .alpha.-olefin copolymer, ethylene .alpha.-olefin polyene copolymer (.alpha.-olefin having the carbon numbers of C.sub.3 -C.sub.10, polyene being non-conjugated diene).Type: GrantFiled: June 24, 1994Date of Patent: May 28, 1996Assignee: Fujikura Ltd.Inventors: Izumi Ishikawa, Isao Takahashi, Hideo Sunazuka, Akira Yoshino, Masatake Hasegawa, Motohisa Murayama
-
Patent number: 5506766Abstract: Each of the primary coils in the three transformers is assigned to one phase of the 3-phase input. A plurality of input diodes, with the primary coils, constitutes a 3-phase full wave rectifying circuit, which in turn consists of two Y- connection circuits. The main circuit of a switching element is connected between the common connecting points of the Y-connection circuits. An output rectifying circuit is connected to each of the secondary coils in the transformers to rectify, smooth and output the voltage generated on the secondary side due to the flyback effect. By using one main switching element, the input current waveform can be maintained as a sine wave, and variable adjustment of the output voltage can be performed, achieving a reduction in the capacity of the output side capacitor.Type: GrantFiled: March 7, 1995Date of Patent: April 9, 1996Assignee: TDK CorporationInventor: Isao Takahashi
-
Patent number: 5483805Abstract: In order to provide a control apparatus for an air conditioning system for an electric vehicle which achieves smooth switching of operating modes, a decision is made as to whether or not the operating mode set by a means for air conditioning mode setting has been maintained for a specific length of time and also, a decision is made by a means for compressor rotation rate decision making as to whether or not the actual rotation rate of the compressor is at the minimum rotation rate.Type: GrantFiled: December 13, 1994Date of Patent: January 16, 1996Assignees: Nissan Motor Co., Ltd., Zexel CorporationInventors: Kazuo Fujii, Isao Takahashi, Junichiro Hara, Takayoshi Matsuoka
-
Patent number: 5402331Abstract: A power device of improved input power-factor, reduced high frequency noise with rush current upon power source connection restrained, reduced switching loss and improved circuit efficiency is provided by an arrangement in which an output of a full-wave rectifying circuit is subjected to a high-frequency interruption through a switching means, an energy accumulated in an inductor connected to the switching means is applied through another switching means to a smoothing capacitor, and a current from the full-wave rectifying circuit so as to flow to the capacitor is interrupted by still another switching means.Type: GrantFiled: February 24, 1993Date of Patent: March 28, 1995Assignee: Matsushita Electric WorksInventors: Isao Takahashi, Masataka Mitani
-
Patent number: 5385008Abstract: A yarn break detecting device for a spinning machine includes detectors, a feed section and a control section. The detectors each include a pair of electrodes having substantially the same area and adapted to electrically induce a potential depending on static electricity charged on a yarn, a differential amplifier, a waveform shaper and an indicator lamp. The induced potential is then amplified and rectified to turn on the indicator lamp and concurrently fed to a microprocessor in the control section for operation processing, resulting in positions at which yarn break occurs and the number of yarn breaks being indicated.Type: GrantFiled: April 28, 1994Date of Patent: January 31, 1995Assignee: Nippon Selen Co., Ltd.Inventors: Syozaburo Makino, Isao Takahashi, Masanori Kishigami
-
Patent number: 5358786Abstract: The present invention relates to an insulated wire comprising a conductor and at least two insulating layers provided on the outer periphery of the conductor. The inner insulating layer is provided directly or via another insulation on the outer periphery of the conductor and comprises a polyolefin compound containing 20 to 80 parts by weight of at least one substance selected from ethylene .alpha.-olefin copolymer, ethylene .alpha.-olefin polyene copolymer (.alpha.-olefin having the carbon numbers of C.sub.3 -C.sub.10, polyene being non-conjugated diene).Type: GrantFiled: April 22, 1993Date of Patent: October 25, 1994Assignee: Fujikura Ltd.Inventors: Izumi Ishikawa, Isao Takahashi, Hideo Sunazuka, Akira Yoshino, Masatake Hasegawa, Motohisa Murayama
-
Patent number: 5297114Abstract: In the magneto-optic recording/reproduction apparatus, a light beam from a semiconductor laser that can be used with two wavelengths, for recording and reproduction is converged by an objective lens on a magneto-optic disk, a predetermined offset is added to this focusing error signal by an offset adjusting circuit, and the objective lens is driven in the direction of the optical axis based on the focusing error signal to which an offset was added.Type: GrantFiled: November 29, 1991Date of Patent: March 22, 1994Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tsuyoshi Itoh, Isao Okuda, Toshiyuki Kase, Hiroshi Nishikawa, Ryoto Ogawa, Masahiro Oono, Koichi Maruyama, Makoto Iki, Isao Takahashi
-
Patent number: 5213176Abstract: A self-propelled vehicle capable of all directional movement over a floor surface and adapted to be guided along a path such as a semiconductor processing line. The vehicle is provided with at least three wheels having a construction enabling rotational movement in a rotational plane of the wheel and in a direction orthogonal thereto. When at least four wheels are provided, the vehicle is provided with a suspension mechanism for mounting the wheels and a mechanism for maintaining a parallel relationship of the suspension mechanism and a chassis of the vehicle so that slanting of the vehicle body during travel is avoided. Also, the vehicle is provided with a vibration preventing base interposed between the vehicle and a substance mounting base for controlling the proper vibration frequency of the vibration presenting base to be lower than 1/.sqroot.2 of the proper vibration frequency of the vehicle.Type: GrantFiled: December 7, 1990Date of Patent: May 25, 1993Assignee: Hitachi, Ltd.Inventors: Noriyuki Oroku, Takamichi Suzuki, Toyohide Hamada, Minoru Ikeda, Hiroshi Kikuchi, Masayasu Akaiwa, Isao Takahashi, Naoki Takehara, Kazumi Adachi
-
Patent number: 5153518Abstract: The invention relates to a synthetic equivalent test circuit which can generate a 4-parameter transient recovery voltage TRV, for verifying a large current breaking performance of a power circuit breaker. A current source current is supplied to only a testing circuit breaker which is to be tested and an auxiliary circuit breaker. A small current with respect to the current source current is transmitted to the first and second auxiliary switches from a power source. When the small current form the current source or the resonance circuit flows, the first auxiliary switch is opened almost simultaneously with the auxiliary circuit breaker, the testing circuit breaker and operates so as to break the current at the time point of the final zero point of the current source current.Type: GrantFiled: September 7, 1990Date of Patent: October 6, 1992Assignee: Hitachi, Ltd.Inventors: Minori Satoh, Isao Takahashi, Yukio Kurosawa, Kastuichi Kashimura, Kunio Hirasawa
-
Patent number: 5105270Abstract: This invention relates to an image input method and a system therefor for raster-scanning an object which makes periodical movements and for obtaining thermal images thereof. The invention comprises the steps of taking in such periodical movements of the object as trigger signals for each revolution period, controlling the scanning speed of a raster scanning mechanism in accordance with the period of such trigger signals, reading arbitrary and different partial images for each of the raster scanning by the mechanism using the trigger signals as references when synchronization is fully established, and synthesizing imagers for one frame to display thermal images on a TV monitor screen.Type: GrantFiled: March 27, 1990Date of Patent: April 14, 1992Assignee: Nippon Avionics Co., Ltd.Inventors: Isao Takahashi, Akira Sema
-
Patent number: 5065060Abstract: A flywheel type energy storage apparatus for use in an uninterruptible power supply has an induction motor which serves as a generator/motor, in which a rotor (65) of the induction motor is constituted by incorporation of a rotor core (62) and a flywheel (64) with a rotor shaft (56) vertically born by a pivot bearing (55) and a magnetic bearing (67).Type: GrantFiled: March 5, 1990Date of Patent: November 12, 1991Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Isao Takahashi, Kazuhiko Tanaka, Akinori Nishihiro, Takeshi Irino
-
Patent number: 4962976Abstract: A polyphase induction motor is driven from an inverter having a set of switches activated in prescribed on-off patterns to provide forward and reverse voltage vectors and a zero vector for controllably energizing the motor. Memories are provided on which there are written forward voltage vector data for forwardly energizing the motor, reverse voltage vector data for reversely energizing the motor, and zero vector data for de-energizing the motor. The voltage vector data and zero vector data are selectively read out from the memories in order to cause the inverter to generate in real time the corresponding voltage vectors and zero vectors needed for the motor to be quickly revolved to, and set out of rotation exactly in, a desired angular position. For such optimum motor speed control an ideal control curve is predefined which represents the ideal relationship between the motor speed and the difference between the actual and the desired angular position of the motor.Type: GrantFiled: December 4, 1989Date of Patent: October 16, 1990Assignees: Sanken Electric Co., Ltd., Isao TakahashiInventors: Isao Takahashi, Makoto Iwata
-
Patent number: 4946528Abstract: An improved method for producing a protective-coated steel pipe in a construction work site by spirally winding and melt-bonding a belt-like thermoplastic synthetic resin sheet around the outer peripheral surface of a steel pipe, for use as a construction member in corrosive circumstances, the method provides a winding step winding the sheet around the outer peripheral surface of the steel pipe while contacting adjacent side end faces of the sheet in a face-to-face relation to each other and a bonding step of heat melt-bonding the adjacent sheet portions to each other in the contacted state of the respective side end faces while pressing both sheet portions together by a pressing means when they begin to melt. Also disclosed is an equipment used for practicing the said method. According to these method and equipment, the resin of the sheet comes into completely close contact with the steel pipe so the corrosion resistance of the pipe is improved remarkably.Type: GrantFiled: November 14, 1988Date of Patent: August 7, 1990Assignee: Kawasaki Steel CorporationInventors: Isao Takahashi, Toyokazu Sakaki
-
Patent number: 4933831Abstract: An inverter power supply with improved power factor comprises a source of low frequency AC voltage and an inverter having a pair of series connected first and second transistors controlled to alternately turn on and off at a high frequency for providing a high frequency AC voltage to a load. A diode-bridge full-wave rectifier is connected to provide a DC voltage which is charged to at least one capacitor which in turn provides a DC voltage input to the inverter. An inductor, which counteracts the capative reactance of the capacitor for improving the power factor, is inserted in series with the AC voltage source across the input of the diode-bridge rectifier. The first and second transistors of the inverter also operate to interrupt or chop at the high frequency a current fed through the inductor from the AC voltage source so as to charge the capacitor through the rectifier by the inductor.Type: GrantFiled: September 14, 1989Date of Patent: June 12, 1990Assignees: Isao Takahashi, Matsushita Electric Works Ltd.Inventors: Isao Takahashi, Masataka Mitani, Minoru Maehara
-
Patent number: 4866513Abstract: A color contrast correction system for video images obtained from color film provides signals representative of the extent of exposure of the color film and then provides for adjustment of the gamma of the respective RGB signals to correct for over or under exposure of the film.Type: GrantFiled: August 2, 1988Date of Patent: September 12, 1989Assignee: Fuji Photo Film Co., Ltd.Inventor: Isao Takahashi
-
Patent number: 4830686Abstract: The invention relates to a method of manufacturing a high-strength steel sheet by annealing the steel sheet after cold rolling. In order to obtain the low-yield ratio, high-strength steel sheet having high strength and good ductility, resistance to secondary cold-work embrittlement and spot weldability at low cost, the steel sheet containing 0.03-0.15% of P and specified amounts of C, Mn and Al as basic components and optionally containing, as a selective component, at least one element selected from a group of Si, Cr, Mo and B and a group of Nb, Ti, and V in such amounts as to meet the relation formula restricting the total content of Mn, Si, P, Cr and Mo is subjected to annealing under the conditions that the sheet is heated at a temperature of from Ac.sub.1 transformation point to 950.degree. C. for from 10 seconds to 10 minutes and cooled in such a control manner that an average cooling rate between 600.degree. C. and 300.degree. C.Type: GrantFiled: April 22, 1987Date of Patent: May 16, 1989Assignee: Kawasaki Steel CorporationInventors: Koichi Hashiguchi, Akio Tosaka, Toshio Irie, Isao Takahashi