Patents by Inventor Tetsuya Iwamoto
Tetsuya Iwamoto 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: 7908866Abstract: An object of the present invention is to provide a gas turbine combustor with improved fatigue resistance of a combustor. It is possible to intentionally reduce a stiffness of each of flanges of upper and lower walls of an end portion (outlet) of the tail pipe of the gas turbine combustor. It is possible to reduce a stiff difference between the upper and lower walls of the end portion (outlet) of the tail pipe section and side walls. Thus, it is possible to reduce compulsion deformation caused due to thermal stress generated in the end portion (outlet) of the tail pipe section on the operation of the conventional gas turbine combustor, and to reduce high stress easy to generate in the side plate. As a result, the gas turbine combustor with high fatigue resistance can be realized.Type: GrantFiled: March 17, 2006Date of Patent: March 22, 2011Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Eigo Kato, Mitsuru Kondo, Tatsuo Ishiguro, Masaki Ono, Tetsu Konishi, Tetsuya Iwamoto
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Patent number: 7853365Abstract: A system manages an optimal load distribution of a total output of a power plant composed of a plurality of units. Plant specifications data of each unit required for optimal load distribution is input and stored. Optimal load distribution calculating carries out a calculation based on data stored. The result of the calculation is stored. A sending-end characteristic curve, a fuel cost curve, a curve of the load optimally distributed to each unit versus the total output, a fuel cost curve for the total output, and fuel cost curves for comparison between a conventional load distribution and the optimal load distribution based on stored data are displayed. An optimal load distribution schedule displays a power transmission time schedule table, a power transmission time schedule curve, and a fuel cost comparison table for different operating schemes.Type: GrantFiled: April 30, 2008Date of Patent: December 14, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Tetsuya Iwamoto, Tsuneo Watanabe
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Publication number: 20090276103Abstract: To provide an operation schedule that minimizes the fuel cost that involves a minimum number of input parameters, is calculated offline, and is arranged taking into account the output distribution among a plurality of units that minimizes the fuel cost.Type: ApplicationFiled: April 30, 2008Publication date: November 5, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tetsuya IWAMOTO, Tsuneo Watanabe
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Patent number: 7358629Abstract: The rotational torque of an electromagnetic actuator having a stator and rotor, such as a stepping motor, is increased. The electromagnetic actuator includes a rotor (30) having multiple magnetic poles (Nr1, Nr2, Nr3, Nr4, Nr5, Sr1, Sr2, Sr3, Sr4, Sr5) on a circumferential surface (31) and a plurality of stators (10, 20) in an electromagnet form. The stator (10, 20) has a pair of magnetic poles (13, 14, 23, 24) facing the circumferential surface (31) of the rotor (30), and an auxiliary yoke (40, 50) made of a soft magnetic material member extending in a circumferential direction (A) over an angular range (?1, ?2) larger than a spread angle (?) of the magnetic poles (Nr, Sr) of the rotor (30) in the circumferential direction (A) is provided between the pair of magnetic poles (13, 14, 23, 24).Type: GrantFiled: August 27, 2004Date of Patent: April 15, 2008Assignee: Seiko Precision Inc.Inventors: Masami Yamamoto, Akihiro Ito, Masato Tanaka, Shinji Morinaga, Tetsuya Iwamoto
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Publication number: 20080010989Abstract: An object of the present invention is to provide a gas turbine combustor with improved fatigue resistance of a combustor. It is possible to intentionally reduce a stiffness of each of flanges of upper and lower walls of an end portion (outlet) of the tail pipe of the gas turbine combustor. It is possible to reduce a stiff difference between the upper and lower walls of the end portion (outlet) of the tail pipe section and side walls. Thus, it is possible to reduce compulsion deformation caused due to thermal stress generated in the end portion (outlet) of the tail pipe section on the operation of the conventional gas turbine combustor, and to reduce high stress easy to generate in the side plate. As a result, the gas turbine combustor with high fatigue resistance can be realized.Type: ApplicationFiled: March 17, 2006Publication date: January 17, 2008Inventors: Eigo Kato, Mitsuru Kondo, Tatsuo Ishiguro, Masaki Ono, Tetsu Konishi, Tetsuya Iwamoto
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Publication number: 20070018513Abstract: The rotational torque of an electromagnetic actuator having a stator and rotor, such as a stepping motor, is increased. The electromagnetic actuator includes a rotor (30) having multiple magnetic poles (Nr1, Nr2, Nr3, Nr4, Nr5, Sr1, Sr2, Sr3, Sr4, Sr5) on a circumferential surface (31) and a plurality of stators (10, 20) in an electromagnet form. The stator (10, 20) has a pair of magnetic poles (13, 14, 23, 24) facing the circumferential surface (31) of the rotor (30), and an auxiliary yoke (40, 50) made of a soft magnetic material member extending in a circumferential direction (A) over an angular range (?1, ?2) larger than a spread angle (?) of the magnetic poles (Nr, Sr) of the rotor (30) in the circumferential direction (A) is provided between the pair of magnetic poles (13, 14, 23, 24).Type: ApplicationFiled: August 27, 2004Publication date: January 25, 2007Inventors: Masami Yamamoto, Akihiro Ito, Masato Tanaka, Shinji Morinaga, Tetsuya Iwamoto
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Patent number: 7012964Abstract: Data indicative of a transfer mode of a transmission packet may be inserted into a payload portion contained in a serial digital transfer interface (SDTI) transmission packet. Also, data indicative of a timing mode of the transmission packet may be inserted into this payload portion. As the transfer mode, there may be provided a synchronous transfer mode and an isochronous transfer mode in addition to an asynchronous transfer mode. A timing mode may prescribe a timing mode in which a transmission packet may be transferred in synchronism with a field of a transmission frame. There may be provided a normal mode using a first field, an advanced mode using a second field and a dual mode using both fields. Depending upon the manner in which the timing mode is set, a system delay between the transmission and the reception can be minimized.Type: GrantFiled: April 16, 1999Date of Patent: March 14, 2006Assignees: Sony Corporation, Sony United Kingdom LimitedInventors: Hiroshi Nakano, Yasuo Iwasaki, Yoshihiro Murakami, Tetsuya Iwamoto, Katsumi Tahara, Hitoshi Sakamoto, James Hedley Wilkinson
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Patent number: 6834083Abstract: This invention relates to a data transmission method or the like for use in transmitting video data, audio data or the like. There is transmitted a serial digital transfer interface transmission packet in which an interval of each line of a video frame comprises an end synchronizing code area into which an end synchronizing code is inserted, an ancillary data area into which ancillary data is inserted, a start synchronizing code area into which a start synchronizing code is inserted and a payload area. Into the payload area, there are inserted first data containing extension data having stream information and second data containing main data comprising video data and/or audio data at the picture unit of video data.Type: GrantFiled: March 26, 2001Date of Patent: December 21, 2004Assignees: Sony Corporation, Sony United Kingdom LimitedInventors: Katsumi Tahara, Yasuo Iwasaki, Tetsuya Iwamoto, James Hedley Wilkinson
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Patent number: 6611652Abstract: An AV data input/output controlling circuit is connected through a data bus to a synchronous-asynchronous conversion circuit and through a control bus to a recording and reproduction controlling circuit. The AV data input/output controlling circuit inputs and outputs audio and/or video data of a normal data rate. The AV data input/output controlling circuit also inputs and outputs audio and/or video data of a higher data rate than usual. In the data recording and reproducing apparatus, audio and/or video data is transferred through a data bus synchronized with a reference synchronization signal S28 etc., the audio and/or video data input from an external unit is recorded in a storage device, and the audio and/or video data recorded in the storage device is reproduced and supplied to the outside.Type: GrantFiled: October 31, 1997Date of Patent: August 26, 2003Assignee: Sony CorporationInventors: Tetsuya Iwamoto, Yoshinori Suzuki, Hiroshi Inamura, Atsumu Soda, Tatsuji Yamazaki, Junichi Ogikubo, Soichiro Niho, Nirokazu Ito, Hiroyuki Fujita, Yuichi Kojima
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Patent number: 6292623Abstract: An image data reproducing method which is possible to obtain a search picture with high quality, a reproducing speed control apparatus, and a recording/reproducing apparatus by finding search speed that it is possible to reproduce image data as much as possible by using the most effectively plural reproducing heads in reproducing a search picture and by setting to the speed.Type: GrantFiled: November 10, 1997Date of Patent: September 18, 2001Assignee: Sony CorporationInventors: Akira Sugiyama, Tetsuya Iwamoto
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Patent number: 6115535Abstract: A non-tracking type audio and video data recording and reproducing apparatus and method adapted for use in performing an editing operation wherein data (overlying data) of a unit or group is inserted over previously recorded data (underlying data). During a recording operation, an error correction code(s) is added to the overlying data, the underlying data located in the area wherein the overlying data is to be recorded may be erased, and the overlying data for the tracks other than the first and last tracks thereof is recorded. During reproduction, the reproduced error correction codes and data of the unit of the tracks other than the first and last tracks thereof are utilized to obtain the overlying data of the first and last tracks which are not recorded. Such arrangement may prevent the erroneous reproduction of the underlying and overlying data at the boundaries of the underlying and overlying data.Type: GrantFiled: December 29, 1997Date of Patent: September 5, 2000Assignee: Sony CorporationInventors: Tetsuya Iwamoto, Mikio Kita
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Patent number: 6069995Abstract: A video data recording and reproducing apparatus with which the quality of the video is not lowered even if the compressed video data is recorded in an overlapped manner without accurate matching of boundaries of the GOP's, wherein a recording position control unit controls a recording system so that the recording start position is made earlier by exactly an amount of one GOP where the recording start position of the top data is recorded from the position immediately before the recording start GOP of the bottom data, the recording end position is made later by exactly the amount of one GOP where the recording of the recording end position of the top data in ended at the position immediately before the recording end GOP of the bottom data, and the recording start position is made later by exactly the amount of one GOP where the recording of the recording end position of the top data is ended at the position two GOP's before the recording start GOP of the bottom data.Type: GrantFiled: May 22, 1997Date of Patent: May 30, 2000Assignee: Sony CorporationInventors: Akira Sugiyama, Tetsuya Iwamoto
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Patent number: 5974225Abstract: A video data recording apparatus which divides video data which has been compressed and encoded in units of groups of pictures (GOPs) comprised of the video data of a predetermined plurality of frames into a plurality of data blocks of a predetermined format, adding a GOP identifying code for identifying a GOP of compressed and encoded video data, recording on a predetermined number of slanted tracks on the tape the plurality of data blocks. Also, a video data reproduction apparatus which reproduces the video data recorded by the video data recording apparatus by simple tracking control.Type: GrantFiled: July 2, 1998Date of Patent: October 26, 1999Assignee: Sony CorporationInventors: Tetsuya Iwamoto, Akira Sugiyama, Hiroshi Inamura, Atsumu Soda, Junichi Ogikubo
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Patent number: 5966494Abstract: Digital video tape recorder which includes a color framing sequence as part of a recorded control signal during standard recording, and which maintains synchronous color framing and/or continuous groups of pictures in two different editing modes in which a newly-suppled video signal is recorded on a magnetic tape already having stored thereon a previously recorded video signal. In a normal recording mode, a color framing signal indicating the occurrence of a newly supplied picture is detected in a supplied video signal. A video control signal that includes the detected color framing signal is generated and is recorded in a control track of the magnetic tape and the video signal is recorded in synchronization with the detected color framing signal in successive oblique tracks on the magnetic tape.Type: GrantFiled: March 4, 1997Date of Patent: October 12, 1999Assignee: Sony CorporationInventor: Tetsuya Iwamoto
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Patent number: 5940574Abstract: A recording system adds a track identification (ID) data for identifying each of the slant tracks, in units of GOP, on a tape during the recording of compressed video and audio data. A tape transport is controlled as a function of a longitudinal control signal recorded on a longitudinal track of the tape if a playback control head can normally reproduce the control signal. If, however, the playback control head cannot reproduce the longitudinal control signal, the tape transport is controlled as a function of a slant control signal containing the track ID data previously recorded on the tape. Hence, the tape transport is accurately maintained even if a problem occurs with the playback control head.Type: GrantFiled: March 13, 1997Date of Patent: August 17, 1999Assignee: Sony CorporationInventors: Tetsuya Iwamoto, Hiroshi Inamura
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Patent number: 5857058Abstract: A video data recording apparatus which divides video data which has been compressed and encoded in units of groups of pictures (GOPs) comprised of the video data of a predetermined plurality of frames into a plurality of data blocks of a predetermined format, adding a GOP identifying code for identifying a GOP of compressed and encoded video data, recording on a predetermined number of slanted tracks on the tape the plurality of data blocks. Also, a video data reproduction apparatus which reproduces the video data recorded by the video data recording apparatus by simple tracking control.Type: GrantFiled: June 6, 1996Date of Patent: January 5, 1999Assignee: Sony CorporationInventors: Tetsuya Iwamoto, Akira Sugiyama, Hiroshi Inamura, Atsumu Soda, Junichi Ogikubo