Patents by Inventor Wasao Takasugi
Wasao Takasugi 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: 6926794Abstract: The present invention provides an information carrier which has flat surfaces, is excellent in beautiful appearance and permits beautiful necessary printing, and a production process which permits easy and inexpensive production of such an information carrier. An IC chip 1 and a coil 2 connected to the IC chip are embedded in a substrate 3 composed of a nonwoven fabric. The IC chip and the coil are held between two nonwoven fabrics produced according to a conventional production procedure. The laminate of the nonwoven fabrics is fed to a roller or a press and the two nonwoven fabrics are hot-pressed, whereby their mating surfaces are joined with or without an adhesive (including low-melting synthetic resin fiber) incorporated into the webs. After positioning of the coil in the thus obtained raw product of information carrier, the laminate of the nonwoven fabrics and cover sheets is cut to obtain an information carrier of predetermined shape and size.Type: GrantFiled: October 15, 2002Date of Patent: August 9, 2005Assignee: Hitachi Maxell, Ltd.Inventors: Kyouichi Kohama, Ryuzo Fukao, Wasao Takasugi, Kazuhiko Daido, Toshinobu Sueyoshi
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Patent number: 6837438Abstract: In a non-contact IC (integrated circuit) module having an IC chip and a coil, the non-contact IC module communicates with a terminal via a booster unit. A communication system extends a communication distance of data modulated by using a carrier frequency (sub-carrier frequency). A communication auxiliary apparatus is used in a communication between a non-contact information medium and an external appliance.Type: GrantFiled: October 29, 1999Date of Patent: January 4, 2005Assignee: Hitachi Maxell, Ltd.Inventors: Wasao Takasugi, Fumiyuki Inose
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Patent number: 6786407Abstract: A reader and system for a noncontact type information storage medium, capable of providing an easy-to-use user interface for information exchange between the non-contact formation type information storage medium and the reader. A reader for a noncontact type information storage medium for reading data from the medium via an antenna through magnetic induction or magnetic coupling, the reader having a display device for displaying whether a reception of data transmitted from the medium via the antenna is succeeded or failed or for displaying a communication result with the medium.Type: GrantFiled: December 3, 1999Date of Patent: September 7, 2004Assignee: Hitachi Maxell, Ltd.Inventor: Wasao Takasugi
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Publication number: 20030037875Abstract: The present invention provides an information carrier which has flat surfaces, is excellent in beautiful appearance and permits beautiful necessary printing, and a production process which permits easy and inexpensive production of such an information carrier. An IC chip 1 and a coil 2 connected to the IC chip are embedded in a substrate 3 composed of a nonwoven fabric. The IC chip and the coil are held between two nonwoven fabrics produced according to a conventional production procedure. The laminate of the nonwoven fabrics is fed to a roller or a press and the two nonwoven fabrics are hot-pressed, whereby their mating surfaces are joined with or without an adhesive (including low-melting synthetic resin fiber) incorporated into the webs. After positioning of the coil in the thus obtained raw product of information carrier, the laminate of the nonwoven fabrics and cover sheets is cut to obtain an information carrier of predetermined shape and size.Type: ApplicationFiled: October 15, 2002Publication date: February 27, 2003Applicant: Hitachi Maxell, Ltd.Inventors: Kyouichi Kohama, Ryuzo Fukao, Wasao Takasugi, Kazuhiko Daido, Toshinobu Sueyoshi
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Patent number: 6482495Abstract: The present invention provides an information carrier which has flat surfaces, is excellent in beautiful appearance and permits beautiful necessary printing, and a production process which permits easy and inexpensive production of such an information carrier. An IC chip 1 and a coil 2 connected to the IC chip are embedded in a substrate 3 composed of a nonwoven fabric. The IC chip and the coil are held between two nonwoven fabrics produced according to a conventional production procedure. The laminate of the nonwoven fabrics is fed to a roller or a press and the two nonwoven fabrics are hot-pressed, whereby their mating surfaces are joined with or without an adhesive (including low-melting synthetic resin fiber) incorporated into the webs. After positioning of the coil in the thus obtained raw product of information carrier, the laminate of the nonwoven fabrics and cover sheets is cut to obtain an information carrier of predetermined shape and size.Type: GrantFiled: March 12, 1997Date of Patent: November 19, 2002Assignee: Hitachi Maxwell, Ltd.Inventors: Kyouichi Kohama, Ryuzo Fukao, Wasao Takasugi, Kazuhiko Daido, Toshinobu Sueyoshi
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Patent number: 6344824Abstract: A compact noncontact communication semiconductor device having a multidirectional or omnidirectional antenna and usable in a minuscule space to which the applications have conventionally been difficult is provided. The outer peripheral portion of a spherical IC 1 is covered with an insulating layer 4 having a thickness equal to or larger than the diameter of the IC 1, and antenna patterns 2 are formed on the surface of the insulating layer 4. The antenna patterns 2 can be configured either with a winding or by microprocessing using etching or laser beam, for example, for the conductive film formed on the surface of the insulating layer 4. The antenna patterns 2 and the circuit pattern formed on the surface of the IC 1 are interconnected via a through hole 5.Type: GrantFiled: February 5, 2001Date of Patent: February 5, 2002Assignee: Hitachi Maxell, Ltd.Inventors: Wasao Takasugi, Fumiyuki Inose
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Patent number: 5856662Abstract: The present invention is intended to provide an information carrier which has flat surfaces, is excellent in beautiful appearance, and permits necessary printing thereon after the production of the carrier, and a process for producing such a thin information carrier easily in high yield. The substrate 3 of the information storage carrier is composed of a material obtained by infiltrating a resin 8 into a reinforcer 7 made of a sheet-like material deformable in the direction of the thickness. An IC module 1 and a coil 2 are embedded in indents 34 formed by compressing the reinforcer 7 in the direction of the thickness, to smoothen both right and reverse sides of the substrate 3. Cover sheets 4 and 5 are attached to the right and reverse sides, respectively, of the substrate 3 with a bonding layer 6 to obtain the required information storage carrier.Type: GrantFiled: June 28, 1996Date of Patent: January 5, 1999Assignee: Hitachi Maxell, Ltd.Inventors: Kyoichi Kohama, Wasao Takasugi, Kazuhiko Daido
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Patent number: 5574273Abstract: An electromagnetic coupling connector for transferring data by an electromagnetic coupling system, including a plurality of data transfer coils for transferring data, disposed at an end portion of a side surface of the connector, a waveform shaper for shaping a waveform of a data signal received by the data transfer coils, and a connector for transferring the signal obtained by the waveform shaper to an equipment to which the electromagnetic coupling connector is fitted. The electromagnetic coupling connector may include a signal transmission/reception portion and a power transmission or reception portion, the signal transmission/reception portion includes a signal amplification circuit, a waveform shaping circuit, a serial/parallel signal conversion circuit and a parallel/serial signal conversion circuit, the power transmission portion includes an oscillation circuit, and the power reception portion includes a rectification/smoothing circuit and a constant voltage.Type: GrantFiled: June 13, 1994Date of Patent: November 12, 1996Assignee: Hitachi Maxell, Ltd.Inventors: Kazunari Nakagawa, Takeshi Tottori, Wasao Takasugi, Yoshiharu Hino, Takeshi Uchida
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Patent number: 5418353Abstract: A non-contact IC card communication in which power consumption of a driver of a reader/writer is reduced and the size of a power supply circuit for operating the driver is made small. The driver has a low output impedance. A current detecting circuit including a detecting coil magnetically coupled with a transceiver coil of the reader/writer through a magnetic coiling element and a resistor detects a current which flows through the transceiver coil. A voltage drop to be detected is small and is approximately constant for a variation of the transceiver coil current. When data is read from an IC card, a load of the driver is changed. The driver drives the transceiver coil in a constant voltage fashion even if a current flowing through the transceiver coil changes due to the change in load. Input voltages of a rectifying/smoothing circuit and a regulator in the IC card become approximately constant. As a result, the amplitude of a high frequency output voltage of the driver can be made small.Type: GrantFiled: October 19, 1994Date of Patent: May 23, 1995Assignees: Hitachi Maxell, Ltd., NII Data Communications Systems CorporationInventors: Yosuke Katayama, Wasao Takasugi, Toshiharu Ieki, Takashi Takeuchi
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Patent number: 5295485Abstract: An ultrasonic diagnostic system includes a probe composed of a group of transducers for transmitting and receiving an ultrasonic wave, a main system connected with the probe by a cable, a memory card, and a battery pack for supplying power. The ultrasonic diagnostic system further includes a data processing unit and a monitor which are provided separately from the above components. The probe and main system are prepared for each ultrasonic scanning mode. The data processing unit subjects the received signal data recorded in the memory card to sophisticated data processing which cannot be carried out by the main system thereby to display the processing result. An examiner can carry the probe, main system, memory card and the battery pack for supplying power instead of a stethoscope to acquires diagnosis data and can process a suspicious image in diagnosis at bedside or house call using the data processing unit thereby to implement precise diagnosis.Type: GrantFiled: December 8, 1992Date of Patent: March 22, 1994Assignee: Hitachi, Ltd.Inventors: Ryuuichi Shinomura, Wasao Takasugi, Yoshikuni Matsunaga, Kageyoshi Katakura
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Patent number: 4949325Abstract: In a method of recording/reproducing information associated with an apparatus and recording medium, the medium has an alternate formation including tracks of first regions wherein at least an optical record of preformatted pits at a constant time interval is recorded and second regions in which information is recorded so that optical retrieval can be achieved. A clock signal is generated based on the readout signal of the preformatted pits to record an information signal in the second regions, and the clock signal is retarded and used to read out data pits that are the record of the information in the second regions.Type: GrantFiled: March 17, 1988Date of Patent: August 14, 1990Assignee: Hitachi, Ltd.Inventors: Toshiaki Tsuyoshi, Masatoshi Ohtake, Wasao Takasugi, Seiji Yonezawa, Takashi Takeuchi, Tadashi Saitoh
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Patent number: 4872152Abstract: In a light spot position control system and method in which a control of the irradiation position of a light spot such as a focusing control, a jitter correction and/or a tracking control is made through a sampling control, a newly sampled error value is compared with a one-preceding sampled value. When a difference between both the values is within a range of a predetermined width, the newly sampled value is used as a new sample value as it is. When the difference exceeds the range of the predetermined width, a sum of the one-preceding sampled value and the predetermined width is used as a new sample value. Thereby, the influence of erroneous samples is reduced.Type: GrantFiled: December 11, 1987Date of Patent: October 3, 1989Assignee: Hitachi, Ltd.Inventors: Toshiaki Tsuyoshi, Masatoshi Ohtake, Wasao Takasugi, Seiji Yonezawa
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Patent number: 4866692Abstract: A method and an apparatus for recording and reproducing information for use with an optical disk apparatus in which a pit edge recording method is used. According to the pit edge recording method, the leading edge and the trailing edge of a hole pit or a record domain generated during a recording operation are dealt with as information. During the recording, the recording pulse width and the recording power are corrected, and during the reproduction, the variation in the edge position is corrected.Type: GrantFiled: August 17, 1987Date of Patent: September 12, 1989Assignee: Hitachi, Ltd.Inventors: Atsushi Saito, Takeshi Maeda, Hisataka Sugiyama, Wasao Takasugi
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Patent number: 4847822Abstract: An optical information recording and reproducing apparatus of a sampling servo system which effects the tracking by holding the differential output of the reproduced signals of tracking pits that are wobbled toward the right and left relative to the track of the optical disk. Reproduced signals of a plurality of pits arranged maintaining a distance on the track and wobbled toward the right or left in a servo signal region, are compared with each other to detect any abnormal condition in the tracking pits. When the abnormal condition is detected, the tracking signal that is sampled is not used, but instead the tracking signal sampled under the normal condition is continuously used to perform the tracking control.Type: GrantFiled: July 9, 1987Date of Patent: July 11, 1989Assignee: Hitachi, Ltd.Inventors: Wasao Takasugi, Seiji Yonezawa, Toshiaki Tsuyoshi, Masatoshi Ohtake
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Patent number: 4835759Abstract: When recording domains are formed locally on a recording medium and information is recorded and reproduced by using rise and fall in a reproduced waveform obtained from the recording domains as data, timing patterns indicating start of demodulation are recorded for the lead-edge and the tail-edge of the recording domains, respectively; time interval between the timing signal for starting demodulation detected from the rise in the reproduced waveform and the timing signal for starting demodulation detected from the fall in the reproduced waveform is detected; time shifts of the signals detected from the lead-edge and the tail-edge of the recording domains succeeding the timing patterns for starting demodulation by using the time interval thus detected; and the information is stably detected as time sequential data having no jitter.Type: GrantFiled: June 25, 1986Date of Patent: May 30, 1989Assignee: Hitachi, Ltd.Inventors: Atsushi Saito, Takeshi Maeda, Hisataka Sugiyama, Kazuo Shigematsu, Wasao Takasugi
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Patent number: 4817066Abstract: A transmitter/receiver for suppling a pulse power to a transducer and receiving a signal from the transducer comprises a parallel connection of a first circuit including a first switch element connected in series with a power supply having one terminal thereof connected to a common potential point, a second circuit including a second switch element connected in series with a receiver having one end thereof connected to the common potential point, and a third circuit including the transducer having one end thereof connected to the common potential point.Type: GrantFiled: August 27, 1986Date of Patent: March 28, 1989Assignees: Hitachi, Ltd, Hitachi Medical Corp.Inventors: Wasao Takasugi, Ryuichi Shinomura, Takeaki Okabe
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Patent number: 4785442Abstract: A light spot position control system of the invention uses an optical disc in which a servo area and a data area are alternately formed along a rotating direction of a rotary recording medium, wherein error signals obtained from the servo areas are sampled, the latest sample value is compared with at least one-preceding sample value, a check is made to see if the latest sample value is correct or incorrect, and when the latest sample value is decided to be incorrect, the preceding error signal held is directly used as a light spot position control signal without updating the current error signal holding value.Type: GrantFiled: July 10, 1987Date of Patent: November 15, 1988Assignee: Hitachi, Ltd.Inventors: Masatoshi Ohtake, Seiji Yonezawa, Toshiaki Tsuyoshi, Wasao Takasugi, Takashi Takeuchi
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Patent number: 4748611Abstract: In an optical disk, one turn of a recording track is divided into a number of sectors. Each of these sectors is composed of a servo field, which is stored in advance with servo information for tracking, and a data recording area which is to be written with data. A predetermined number of these sectors are joined together to form a plurality of blocks. Each of these blocks is recorded at the data recording areas of its predetermined sectors with identification information for identifying the blocks and phase synchronization loop pull-in information for read out clocks.Type: GrantFiled: April 29, 1986Date of Patent: May 31, 1988Assignee: Hitachi, Ltd.Inventors: Toshiaki Tsuyoshi, Masatoshi Otake, Sachio Kumagai, Kazuo Ichino, Wasao Takasugi, Seiji Yonezawa
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Patent number: 4735211Abstract: An ultrasonic measurement apparatus provided with a probe connected to a Doppler flow meter, and a movement detecting probe, both of which probes are mounted on an actuator, which is driven by a synthesizer which is adapted to repeatedly reproduce a set waveform synchronously with the cardiac motion of a living body, whereby the distance between the probes and a region of interest in the interior of the living body is kept substantially constant irrespective of the movement, which occurs due to the cardiac motion, of the region of interest to enable a measurement signal from the region of interest to be constantly obtained. The movement detecting probe is connected to a M-mode imaging apparatus to thereby make it possible that a M-mode image thereon be monitored to determine whether a suitable waveform is generated by the synthesizer.Type: GrantFiled: January 31, 1986Date of Patent: April 5, 1988Assignee: Hitachi, Ltd.Inventor: Wasao Takasugi
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Patent number: RE35435Abstract: A method and an apparatus for recording and reproducing information for use with an optical disk apparatus in which a pit edge recording method is used. According to the pit edge recording method, the leading edge and the trailing edge of a hole pit or a record domain generated during a recording operation are dealt with as information. During the recording, the recording pulse width and the recording power are corrected, and during the reproduction, the variation in the edge position is corrected.Type: GrantFiled: September 11, 1991Date of Patent: January 28, 1997Assignee: Hitachi, Ltd.Inventors: Atsushi Saito, Takeshi Maeda, Hisataka Sugiyama, Wasao Takasugi