Patents by Inventor Yasuo Sato

Yasuo Sato 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: 7197378
    Abstract: A coordination controller prevents the deterioration of electric power quality in an electric power system, such as in terms of voltage values, that can be caused when distributed power resources connected in parallel to the electric power system are operated without restrictions. A distributed power resource 103 includes means 112 for communicating with the outside of an electric power facility, means 116 for monitoring the current time, means 115 for synchronizing with the outside time, means 112 for receiving a control schedule for an electric power-consuming apparatus or electric power generating apparatus, and a coordination controller 101 for implementing the control schedule according to the time obtained by the time monitoring means 116.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: March 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yasuo Sato, Masahiro Watanabe, Kenji Ogawa
  • Patent number: 7173913
    Abstract: An object of the present invention is to provide a multiple spanning tree system in which a plurality of spanning trees are constructed in a ring system to effectively use a band of the ring system. A plurality of bridge protocol processing sections are provided in a node device to enable a plurality of bridge protocol processings to be performed in a transmission path connected to one node device. Thereby, a plurality of spanning trees can be constructed and a root bridge can be placed every each node device.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: February 6, 2007
    Assignee: NEC Corporation
    Inventor: Yasuo Sato
  • Patent number: 7102687
    Abstract: An image data conversion processing device including an issue unit, plural line storing units, and a generating unit for converting to a television signal image data stored in plural kinds of developing formats in a storing unit. The image data comprises plural lines, and the television signal comprises a predetermined number of lines. The issue unit issues a transmission instruction of image data to the storing unit in accordance with a period specified by a ratio of the number of lines of the image data to be converted and the number of lines of the television signal. The plural line storing units cyclically store the image data transmitted from the storing unit line by line on the basis of the transmission instruction of the issue unit.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: September 5, 2006
    Assignee: Fujitsu Limited
    Inventors: Makoto Nakamoto, Satoshi Nakamura, Akinori Takayama, Kazunori Takahashi, Akio Takigami, Yasuo Sato, Chiaki Ito, Yoichi Aoki
  • Publication number: 20060187984
    Abstract: A semiconductor light emitting device capable of realizing a long life, a method of manufacturing the same, and an optical module using the semiconductor light emitting device are provided. The semiconductor light emitting device has an active layer, in which a well layer made of a Ga1-xInxNyAs1-y-zSbz mixed crystal (0?x<1, 0<y<1, 0?z<1, and 0<y+z<1) and a barrier layer made of a GaNvAs1-v mixed crystal (0?v<1) are layered. The impurity concentration of hydrogen in the active layer is 3×1019 cm?3 or less, and the impurity concentration of aluminum in the active layer is 1×1018 cm?3 or less. Thereby, the operating current is inhibited from increasing, and a long life can be realized. The hydrogen concentration can be decreased by decreasing the flow rate of the organic nitrogen compound used as a raw material of nitrogen when the active layer is grown.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 24, 2006
    Inventors: Yasuo Sato, Jugo Mitomo, Mikihiro Yokozeki, Tomonori Hino, Hironobu Narui
  • Publication number: 20060158049
    Abstract: The heat-generating components of an integrated motor system are disposed proximate the motor body, for efficient heat dissipation, and the heat-sensitive components are segregated therefrom, physically and thermally.
    Type: Application
    Filed: January 18, 2005
    Publication date: July 20, 2006
    Inventors: Seiki Suzuki, Yasuo Sato, Akihiko Hoda, Chikara Sugawara, Yoshinari Araki, Eiji Oi, Hung Vu
  • Patent number: 7045516
    Abstract: A compound represented by the following general formula (1): wherein R1 represents a halogen atom, R2 represents hydrogen atom or a lower alkyl group, and R3 represents hydrogen atom, a lower alkyl group, a lower alkoxyl group, a hydroxy lower alkyl group, a halogen atom, or a substituted or unsubstituted amino group, wherein a substituent on the amino group is selected from the group consisting of a lower alkyl group, a lower alkenyl group, a lower alkylcarbonyl group, and an amino protective group, or a salt thereof. The compound of the present invention or a salt thereof is useful as an active ingredient of medicaments for preventive and/or therapeutic treatment of conditions of irritable bowel syndrome and digestive tract functional disorder, or condition of diarrhea.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: May 16, 2006
    Assignee: Koichi Shudo
    Inventors: Sojiro Shiokawa, Yasuo Sato, Masaaki Izumi, Satoshi Yoshida, Tomoko Ito, Tetsutaro Niisato, Hiroshi Murakami
  • Patent number: 7024634
    Abstract: The present invention provides a display control system for controlling data which is displayed on a screen of a display unit. The system includes a pointing device for pointing to a position on the screen of the display unit, a deleting unit for gradually deleting elements of data from the screen of the display unit as if the elements were gradually being sucked at the position pointed to by the pointing device, and a density controller for controlling the density of elements remaining on the screen of the display unit so that the density is gradually decreased in accordance with suction of the elements.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 4, 2006
    Assignee: Fujitsu Limited
    Inventors: Toru Okawa, Ryuichi Matsukura, Yasuo Sato
  • Patent number: 6995229
    Abstract: The present invention relates to a polymer having a melt tension (MT (g)) substantially the same as or lower than that of a conventional polymer which is substantially the same as the polymer in the recurring unit of the main skeleton, the molecular weight, the molecular weight distribution and the crystallinity, and having a flow activation energy (Ea (KJ/mol)) larger than a value obtained by adding 5 KJ/mol to the Ea value of the conventional polymer. A preferred example of the polymer is a branched polyolefin comprising 50 to 100% by mol of recurring units derived from ethylene and 0 to 50% by mol of recurring units derived from an ?-olefin of 3 to 20 carbon atoms and having the following properties: the flow activation energy (Ea (KJ/mol)) and the ?-olefin content (C (% by weight)) satisfy a specific relation, and the melt tension (MT (g)) and the melt flow rate (MFR (g/10 min)) satisfy a specific relation. This branched polyolefin is excellent in moldability and mechanical strength.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: February 7, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Norio Kashiwa, Shinichi Kojoh, Shingo Matsuo, Junji Saito, Terunori Fujita, Makoto Mitani, Mamoru Takahashi, Yasuo Sato
  • Publication number: 20050205873
    Abstract: In a method for making a compound semiconductor including a substrate and a compound semiconductor layer having a lattice mismatch ratio of 2% or more relative to the substrate, the method includes a first epitaxial growth step of forming a buffer layer on the substrate, the buffer layer having a predetermined distribution of lattice mismatch ratios in the thickness direction so as to reduce strain; and a second epitaxial growth step of forming the compound semiconductor layer on the buffer layer. The first epitaxial growth step is carried out by metal organic chemical vapor deposition at a deposition temperature of 600° C. or less.
    Type: Application
    Filed: March 14, 2005
    Publication date: September 22, 2005
    Inventors: Yasuo Sato, Tomonori Hino, Hironobu Narui
  • Publication number: 20050182587
    Abstract: A circuit quality evaluation method obtains an indicator linked to the quality of a circuit by applying information representing a minimum delay margin of a path passing through an assumed fault site, a machine cycle, and a delay fault occurrence frequency. Further, the circuit quality evaluation method evaluates the quality of the circuit based on the indicator.
    Type: Application
    Filed: February 9, 2005
    Publication date: August 18, 2005
    Applicant: SEMICONDUCTOR TECHNOLOGY ACADEMIC RESEARCH CENTER
    Inventors: Yasuo Sato, Shuji Hamada, Toshiyuki Maeda, Atsuo Takatori, Yasuyuki Nozuyama
  • Patent number: 6910190
    Abstract: The present invention provides a display control system for controlling data which is displayed on a screen of a display unit. The system includes a pointing device for pointing to a position on the screen of the display unit, a deleting unit for gradually deleting elements of data from the screen of the display unit as if the elements were gradually being sucked at the position pointed to by the pointing device, and a density controller for controlling the density of elements remaining on the screen of the display unit so that the density is gradually decreased in accordance with suction of the elements.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: June 21, 2005
    Assignee: Fujitsu Limited
    Inventors: Toru Okawa, Ryuichi Matsukura, Yasuo Sato
  • Publication number: 20050096797
    Abstract: A system for managing energy consumption has a data storage module, a calculation module and an operation planning module. The data storage module stores an operational past record of a unit belonging to a facility to be managed by the system. The calculation module calculates wasteful energy consumption for the unit based on the operational past record stored in the data storage module. The operation planning module generates an operational plan for the unit belonging to the facility based on the wasteful energy consumption calculated by the calculation module.
    Type: Application
    Filed: July 30, 2004
    Publication date: May 5, 2005
    Inventors: Masahiro Matsubara, Yasushi Harada, Yasuo Sato, Nobuhisa Kobayashi, Junichi Yamada
  • Patent number: 6867226
    Abstract: This invention provides a serotonin 5-HT3 receptor partial activator which has a serotonin 5-HT3 receptor activating action, in addition to its serotonin 5-HT3 receptor antagonism, and does not cause constipation as a side effect. Particularly, based on the finding that newly synthesized benzoxazole derivatives typified by the compounds of the following formula (2) have strong serotonin 5-HT3 receptor antagonism and serotonin 5-HT3 receptor activating action, this invention provides these benzoxazole derivatives as serotonin 5-HT3 receptor partial activators.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: March 15, 2005
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Yasuo Sato, Megumi Yamada, Kazuko Kobayashi, Katsuyoshi Iwamatsu, Fukio Konno, Koichi Shudo
  • Patent number: 6844967
    Abstract: A screen unit includes a semipermeable screen sheet sandwiched between a first transparent sheet and a second transparent sheet. The semipermeable screen sheet transmits and reflects a projected image in a constant percentage. The first transparent sheet such as an acrylic sheet wider than the semipermeable screen sheet. The second transparent sheet is the same as the first transparent sheet.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: January 18, 2005
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Nishinihon-Denken Inc.
    Inventors: Kohei Teramoto, Yasuo Sato, Yoshinori Sakakibara
  • Publication number: 20040207264
    Abstract: A coordination controller prevents the deterioration of electric power quality in an electric power system, such as in terms of voltage values, that can be caused when distributed power resources connected in parallel to the electric power system are operated without restrictions. A distributed power resource 103 includes means 112 for communicating with the outside of an electric power facility, means 116 for monitoring the current time, means 115 for synchronizing with the outside time, means 112 for receiving a control schedule for an electric power-consuming apparatus or electric power generating apparatus, and a coordination controller 101 for implementing the control schedule according to the time obtained by the time monitoring means 116.
    Type: Application
    Filed: August 22, 2003
    Publication date: October 21, 2004
    Inventors: Yasuo Sato, Masahiro Watanabe, Kenji Ogawa
  • Patent number: 6794585
    Abstract: A method includes the steps of forming a first metal foil (82) on a surface of an insulator substrate (1a), drilling, with a thermosetting resin film (84) temporarily fixed to an opposite surface of the substrate, a through hole (86) simultaneously in the first foil, the substrate, and the resin film, simultaneously heating and vacuum-pressing the first foil, the substrate, the resin film, and a second metal foil (87) brought into contact with the resin film to obtain an intermediate board in which a bottom of the through hole is covered with the second foil and has a corner with a corner rounded portion (93) formed by the resin film, and forming a metal plating layer (95) on the first and the second foils, on the bottom and an inner wall of the through hole, and on the corner rounded portion to obtain a final printed wiring board.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: September 21, 2004
    Assignee: Japan Radio Co., LTD
    Inventors: Shigetoshi Abe, Tomoko Kato, Yasuo Sato, Takashi Itagaki, Kenji Matsumoto
  • Publication number: 20040181491
    Abstract: A method, equipment and a program that present uncertain factors such as the demand variation of electric power, electric power unit price and fuel unit price in stochastic models, provide the analytical means of the correlation between return and risk by which the results can be quantitatively given, have GUI means to do trail and error evaluation of the combinations of various conditions regarding to the interrupt operation plan and electric power trade contract plan and have an amendment means by which the amendment of plans is cooperated with the analytical means of the correlation between return and the risk has been proposed. The system enables to comprehend the correlation between returns and risk that the present operating schedule involves.
    Type: Application
    Filed: October 30, 2003
    Publication date: September 16, 2004
    Applicant: HITACHI, LTD.
    Inventors: Yasuo Sato, Yasushi Harada, Toshiyuki Sawa, Mitsuo Tsurugai, Shigeru Tamura
  • Patent number: 6714251
    Abstract: An image data conversion processing device including an issue unit, plural line storing units and a generating unit for converting to a television signal image data stored in plural kinds of developing formats in a storing unit. The image data comprises plural lines, and the television signal comprises a predetermined number of lines. The issue unit issues a transmission instruction of image data to the storing unit in accordance with a period specified by a ratio of the number of lines the image data to be converted and the line number of the television signal. The plural line storing units cyclically store the image data transmitted from the storing unit line by line on the basis of the transmission instruction of the issue unit.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: March 30, 2004
    Assignee: Fujitsu Limited
    Inventors: Makoto Nakamoto, Satoshi Nakamura, Akinori Takayama, Kazunori Takahashi, Akio Takigami, Yasuo Sato, Chiaki Ito, Yoichi Aoki
  • Publication number: 20040032938
    Abstract: A communication control method for preventing contention for an originating telephone number among a plurality of terminal devices. A terminal device directly connected with a telephone line is provided with means for setting whether or not to execute an originating telephone number receiving sequence at the terminal device and, when the execution of the originating telephone number receiving sequence is set for the terminal device, the sequence is executed at the device and a connection between the telephone line and the other terminal device is cut off; when the execution of the sequence is not set for the device, the sequence is not executed at the device and the other terminal device is connected with the telephone line to execute the sequence at the connected other device.
    Type: Application
    Filed: August 13, 2003
    Publication date: February 19, 2004
    Applicant: Fujitsu Limited
    Inventors: Toshihiro Asami, Katsutoshi Yano, Tomoyoshi Takebayashi, Yasuo Sato, Tomoharu Matsushita, Shigeki Yamamoto, Tomonori Yasumoto
  • Patent number: 6649542
    Abstract: A method of writing data into a memory cell of a non-volatile semiconductor memory device includes setting a write voltage applied to portions of the memory cells depending upon a value of write data, and applying, to a gate electrode, a voltage by which an electric charge is allowed to tunnel through an insulating film on a lower side of a dialectric film that captures the electric charge corresponding to a data value. The amount of electric charge captured is easily and reliably adjusted in order to store desired multi-value digital data, while preventing occurrence of data corruption.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: November 18, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Hirotomo Miura, Yasuo Sato