Patents by Inventor Tsutomu Satou
Tsutomu Satou 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: 8040940Abstract: A transmitter/receiver device includes: a transmitter unit including a parallel/serial converting circuit, a waveform deteriorating circuit, and a transmitter circuit; and a receiver unit including a receiver circuit, a serial/parallel converting circuit, and an error detecting circuit. The parallel/serial converting circuit converts a transmitter-side parallel signal to a transmitter-side serial signal. The waveform deteriorating circuit deteriorates a signal waveform of the transmitter-side serial signal. The transmitter circuit transmits to the receiver unit the signal whose waveform is deteriorated. The receiver circuit receives, as a receiver-side serial signal, the signal transmitted from the transmitter circuit. The serial/parallel converting circuit converts the receiver-side serial signal to a receiver-side parallel signal. The error detecting circuit detects a bit error rate of the receiver-side parallel signal.Type: GrantFiled: September 26, 2007Date of Patent: October 18, 2011Assignee: Fujitsu Semiconductor LimitedInventor: Tsutomu Satou
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Publication number: 20080240212Abstract: A transmitter/receiver device includes: a transmitter unit including a parallel/serial converting circuit, a waveform deteriorating circuit, and a transmitter circuit; and a receiver unit including a receiver circuit, a serial/parallel converting circuit, and an error detecting circuit. The parallel/serial converting circuit converts a transmitter-side parallel signal to a transmitter-side serial signal. The waveform deteriorating circuit deteriorates a signal waveform of the transmitter-side serial signal. The transmitter circuit transmits to the receiver unit the signal whose waveform is deteriorated. The receiver circuit receives, as a receiver-side serial signal, the signal transmitted from the transmitter circuit. The serial/parallel converting circuit converts the receiver-side serial signal to a receiver-side parallel signal. The error detecting circuit detects a bit error rate of the receiver-side parallel signal.Type: ApplicationFiled: September 26, 2007Publication date: October 2, 2008Inventor: Tsutomu Satou
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Patent number: 7319816Abstract: An optical transmitter transmits a light which alternately exhibits a spectrum line width wider than a Brillouin bandwidth and a spectrum line width narrower than the Brillouin bandwidth. The transmitted light is provided to an optical transmission line so that the transmitted light travels in the transmission line and thereby causes returning light to be generated in the transmission line. An optical detecting section detects the returning light. Disconnection of the transmission line is detected from the detected returning light.Type: GrantFiled: February 13, 2004Date of Patent: January 15, 2008Assignee: Fujitsu LimitedInventors: Tsutomu Satou, Kenji Ota
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Publication number: 20070083940Abstract: The present invention provides a transformed silkworm which has a polynucleotide encoding human collagen within the genomic DNA and produces recombinant human collagen as a part of proteins in the cocoon or the silk gland; a process for producing recombinant human collagen by using this transformed silkworm; and a recombinant vector for use in the generation of the transformed silkworm. Since human collagen is collected from the cocoon discharged by this transformed silkworm or its silk gland, highly pure human collagen can be conveniently obtained in a large amount. Moreover, because the recombinant human collagen produced by the transformed silkworm is safe collagen which is free from any fear of the contamination with pathogens such as viruses or prions and exhibits no antigenicity toward humans. Thus, it can be utilized in various industrial fields including medicines, foods, cosmetics and the like.Type: ApplicationFiled: June 11, 2001Publication date: April 12, 2007Inventors: Katsutoshi Yoshizato, Masahiro Tomita, Tsutomu Satou, Hajime Mori, Toshiki Tamura, Takahiro Adachi, Hiroto Munetsuna
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Publication number: 20040190897Abstract: An optical transmitter transmits a light which alternately exhibits a spectrum line width wider than a Brillouin bandwidth and a spectrum line width narrower than the Brillouin bandwidth. The transmitted light is provided to an optical transmission line so that the transmitted light travels in the transmission line and thereby causes returning light to be generated in the transmission line. An optical detecting section detects the returning light. Disconnection of the transmission line is detected from the detected returning light.Type: ApplicationFiled: February 13, 2004Publication date: September 30, 2004Applicant: Fujitsu LimitedInventors: Tsutomu Satou, Kenji Ota
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Patent number: 6429631Abstract: In the regulated power supply circuit, an overcurrent detection circuit detects the flow of an overcurrent through a transistor acting as an output control element and supplies a result of the detection to a cut-off operation prohibition circuit. During non-startup time of the regulated power supply circuit, the cut-off operation prohibition circuit simply relays a result of the overcurrent detection circuit detecting an overcurrent to a cut-off circuit without introducing any changes to the result. The cut-off circuit increases a base potential of the transistor according to the result of the detection of an overcurrent to cut off the output of the transistor. It is ensured that the output voltage rises even if the overcurrent detection circuit has activated the cut-off circuit upon detection of the overcurrent temporarily passing through the transistor during a startup.Type: GrantFiled: February 28, 2001Date of Patent: August 6, 2002Assignee: Sharp Kabushiki KaishaInventors: Katsumi Inaba, Tomohiro Suzuki, Kohji Hisakawa, Tsutomu Satou
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Patent number: 6396656Abstract: There will be provided a wrong insertion prevention device for a cartridge type recording medium capable of reliably preventing a cartridge type recording medium from being inserted into each unit cell in the reverse direction.Type: GrantFiled: December 10, 1999Date of Patent: May 28, 2002Assignee: NEC CorporationInventor: Tsutomu Satou
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Publication number: 20010017535Abstract: In the regulated power supply circuit, an overcurrent detection circuit detects the flow of an overcurrent through a transistor acting as an output control element and supplies a result of the detection to a cut-off operation prohibition circuit. During non-startup time of the regulated power supply circuit, the cut-off operation prohibition circuit simply relays a result of the overcurrent detection circuit detecting an overcurrent to a cut-off circuit without introducing any changes to the result. The cut-off circuit increases a base potential of the transistor according to the result of the detection of an overcurrent to cut off the output of the transistor. It is ensured that the output voltage rises even if the overcurrent detection circuit has activated the cut-off circuit upon detection of the overcurrent temporarily passing through the transistor during a startup.Type: ApplicationFiled: February 28, 2001Publication date: August 30, 2001Inventors: Katsumi Inaba, Tomohiro Suzuki, Kohji Hisakawa, Tsutomu Satou
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Patent number: 5939163Abstract: An optical information recording medium which records at shorter laser wavelengths and has excellent light resistance and archival stability includes a supporting substrate and a recording layer coated on the substrate. The recording layer includes a metal chelated azo compound, the azo compound having the general formula (I): ##STR1## wherein X is NR.sup.6 group, oxygen or sulphur, wherein R.sup.6 is hydrogen or alkyl; Y is hydroxy, carboxy, or carbamoyl; each of R.sup.1 -R.sup.5 is independently hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkenyl, alkoxy, amino, halogen, nitro, cyano, trifluoromethyl, or carboxy, with the proviso that all of R.sup.1 -R.sup.5 are not simultaneously hydrogen; and the metal is a metal ion of Groups 3-12 of the Periodic Table.Type: GrantFiled: June 23, 1997Date of Patent: August 17, 1999Assignee: Ricoh Co., Ltd.Inventors: Yasunobu Ueno, Tsutomu Satou, Tatsuya Tomura, Noboru Sasa, Yasuhiro Hgashi
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Patent number: 5873735Abstract: An information reproducer which includes reading device for a reading visual information and sound information printed on a printing sheet, a storage device for storing the visual information and the sound information read by the reading device, a display device for selectively displaying the stored visual information on a screen, a visual information designating device for designating a partial area of the visual information displayed on the display screen, a connecting device for connecting the partial area of the visual information designated by the designating device with a part of the sound information corresponding thereto, and a sound information reproducing device for reading, from the storage device, and reproducing the sound information connected with the designated visual information.Type: GrantFiled: December 18, 1995Date of Patent: February 23, 1999Assignee: Sharp Kabushiki KaishaInventors: Satoshi Yamada, Hiroomi Ueda, Seiichi Senoo, Tsutomu Satou
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Patent number: 5260165Abstract: An optical information recording medium is composed of a substrate, and a recording layer formed on the substrate, the recording layer including (a) a first recording layer, (b) an intermediate, and (b) a second recording layer, which are successively overlaid on the substrate, the first recording layer containing as the main component an organic dye having a peak of spectral reflectivity near the wavelength of a light beam for the recording and reproduction of information, the intermediate layer being transparent to the light beam for recording and reproduction of information, and containing a material having a refractive index smaller than the refractive index of the second recording layer, and the second recording layer containing as the main component an organic dye having a peak of spectral absorbance near the wavelength of the light beam for recording and reproduction of information, and having a thickness by which a maximum reflectivity is exhibited.Type: GrantFiled: March 4, 1991Date of Patent: November 9, 1993Assignee: Ricoh Company, Ltd.Inventors: Tsutomu Satou, Keiko Ichinose
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Patent number: D336641Type: GrantFiled: July 18, 1991Date of Patent: June 22, 1993Assignee: Hitachi, Ltd.Inventors: Shinichi Uruma, Masahiro Yaezawa, Tadashi Kitashima, Isao Aburatani, Tsutomu Satou, Daiji Tsuboi