Patents by Inventor Yasushi Takeda
Yasushi Takeda 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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Publication number: 20070033783Abstract: A solid electrolytic capacitor of the present invention includes an anode element made of a sintered body of a valve-action metal; a dielectric coating, a solid electrolyte layer, and a cathode lead layer, sequentially formed on a surface of the anode element; and an anode lead member made of a conductive metal projecting from the anode element, the anode lead member having a base end thereof embedded in the anode element, the base end being formed such that a cross section thereof perpendicular to a direction extending inwardly of the anode element has a contour with four rounded rectangular corners.Type: ApplicationFiled: January 31, 2006Publication date: February 15, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventor: Yasushi Takeda
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Patent number: 6975446Abstract: An optical amplifier has a gain flatness which is maintained to be substantially constant regardless of temperature changes. The optical amplifier includes an EDF amplifying section and a Raman amplifying section, the Raman amplifying section having a temperature dependent gain profile which enables compensating for the temperature dependent gain profile of the EDF amplifying section. The Raman amplifying section includes a wavelength lock grating whose transmission wavelengths shift toward the short wavelength side as the temperature increases. The wavelength lock grating is preferably disposed to have the same temperature as that of an EDF of the EDF amplifying section. A method for compensating for temperature dependency of gain flatness of an optical amplifier and an optical transmission path including an optical amplifier are also disclosed.Type: GrantFiled: August 29, 2003Date of Patent: December 13, 2005Assignee: Fujikura Ltd.Inventors: Yasushi Takeda, Noriaki Shimada, Tetsuya Sakai, Akira Wada
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Publication number: 20050241411Abstract: An ultrasonic flowmeter 10 comprises: a trigger oscillator 14; a pulse receiver 16; a transducer 20 for casting an ultrasonic pulse toward a measurement line ML within a fluid tube 22 according to an electric signal from the pulse receiver 16; a signal processing unit 27 for performing signal processing for ultrasonic echo signals corresponding to a reflected wave received by the transducer 20; a flow-speed distribution calculating member 28 for calculating the position and speed of each ultrasonic reflector positioned along the measurement line ML by analyzing the ultrasonic echo signals subjected to signal processing; and a flow calculating member 29, wherein the signal processing unit 27 includes a filtering processing member 25 for performing filtering processing for the ultrasonic echo signals and an AD converter 17 for performing AD conversion.Type: ApplicationFiled: May 22, 2003Publication date: November 3, 2005Applicant: KEIO UNIVERSITYInventors: Koichi Hishida, Yasushi Takeda, Michitsugu Mori
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Publication number: 20050245827Abstract: A doppler ultrasonic flowmeter 10A includes: a Udflow unit 13 for calculating the speed of a great number of reflectors 25 contained in a fluid 12 to be measured; a flow-speed distribution calculating element 70 for calculating the flow-speed distribution of the fluid 12 to be measured within a fluid tube 11 by performing computation processing for the flow-speed data of the reflectors 25 received from the Udflow unit 13; a center position detecting element 71 for detecting the center position of the fluid tube 11; a flow-speed distribution calculating member 67 having an area selecting element 72 which allows the user to select a division area within the fluid tube 11 in units of the division area; the flow-speed distribution being calculated for the selected division area using the reflectors 25; and a flow calculating member 68 for measuring the flow by further performing computation processing for the flow-speed distribution of the fluid 12 to be measured.Type: ApplicationFiled: June 3, 2003Publication date: November 3, 2005Applicants: THE TOKYO ELECTRIC POWER COMPANY, INCORPORATED, Yasushi TAKEDAInventors: Yasushi Takeda, Michitsugu Mori
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Patent number: 6931945Abstract: A Doppler type ultrasonic flowmeter has an ultrasonic transmitting means for emitting ultrasonic pulses from an ultrasonic transducer into a fluid pipe, a flow velocity profile measuring means for receiving an ultrasonic echo reflected from a measurement region in the fluid pipe thereby to measure a flow velocity profile of a fluid to be measured, a fluid flow rate computing means for calculating the flow rate thereof on the basis of the flow velocity profile of the fluid to be measured, and a frequency selecting and setting means for automatically selecting a fundamental frequency of an ultrasonic wave that causes a resonant transmission phenomenon to take place from the ultrasonic transducer. The frequency selecting and setting means controls the operation of the ultrasonic transmitting means such that an ultrasonic wave of a selected optimum frequency is emitted from the ultrasonic transducer.Type: GrantFiled: October 25, 2002Date of Patent: August 23, 2005Assignees: The Tokyo Electric Power Company, IncorporatedInventors: Yasushi Takeda, Michitsugu Mori
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Publication number: 20050011279Abstract: A Doppler type ultrasonic flowmeter has an ultrasonic transmitting means for emitting ultrasonic pulses from an ultrasonic transducer into a fluid pipe, a flow velocity profile measuring means for receiving an ultrasonic echo reflected from a measurement region in the fluid pipe thereby to measure a flow velocity profile of a fluid to be measured, a fluid flow rate computing means for calculating the flow rate thereof on the basis of the flow velocity profile of the fluid to be measured, and a frequency selecting and setting means for automatically selecting a fundamental frequency of an ultrasonic wave that causes a resonant transmission phenomenon to take place from the ultrasonic transducer. The frequency selecting and setting means controls the operation of the ultrasonic transmitting means such that an ultrasonic wave of a selected optimum frequency is emitted from the ultrasonic transducer.Type: ApplicationFiled: October 25, 2002Publication date: January 20, 2005Inventors: Yasushi Takeda, Michitsugu Mori
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Publication number: 20040162792Abstract: An object of the present invention is to offer an optimization method for power generation cost and optimization system for power generation cost that enable the transmission company to use the alternative fuel stably at the lowest possible burden.Type: ApplicationFiled: February 13, 2004Publication date: August 19, 2004Inventors: Syouzou Satou, Yasushi Takeda
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Publication number: 20040042062Abstract: An optical amplifier has a gain flatness which is maintained to be substantially constant regardless of temperature changes. The optical amplifier includes an EDF amplifying section and a Raman amplifying section, the Raman amplifying section having a temperature dependent gain profile which enables compensating for the temperature dependent gain profile of the EDF amplifying section. The Raman amplifying section includes a wavelength lock grating whose transmission wavelengths shift toward the short wavelength side as the temperature increases. The wavelength lock grating is preferably disposed to have the same temperature as that of an EDF of the EDF amplifying section. A method for compensating for temperature dependency of gain flatness of an optical amplifier and an optical transmission path including an optical amplifier are also disclosed.Type: ApplicationFiled: August 29, 2003Publication date: March 4, 2004Applicant: FUJIKURA LTD.Inventors: Yasushi Takeda, Noriaki Shimada, Tetsuya Sakai, Akira Wada
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Publication number: 20020094866Abstract: A sound controller has a volume controller, which adjusts the output level of a sound processor unit, and a CPU, which sets the gains (or ON/OFF condition) of the volume controller responsive to a scene or situation in a video game, thereby enabling generation of sound that is responsive to individual scenes and situations in the video game, and enabling effective audible enactment for a user of various scenes and situations in the video game.Type: ApplicationFiled: December 20, 2001Publication date: July 18, 2002Inventors: Yasushi Takeda, Noriyuki Henmi, Isamu Terasaka, Yoshikazu Kawatani
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Publication number: 20020068626Abstract: In the disclosed invention, a second object symbolizing the shadow of a first object in a virtual space, the shape, motion, and the like of the second object can be controlled independently of the first object, and the first and second objects are set to be personalized virtual characters in a 3D virtual space of a video game, so that a video game or the like having unexpectedness which is supposed to be impossible in a conventional expressing method of a 3D graphic animation, joyfulness, and wide game properties (good entertainment properties).Type: ApplicationFiled: October 2, 2001Publication date: June 6, 2002Inventors: Yasushi Takeda, Noriyuki Henmi
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Patent number: 6374166Abstract: A combustion temperature (Tc) in an exhaust hydrogen combustor (5) is calculated (step S10). An exhaust temperature (Te) of the exhaust hydrogen combustor (5) is detected by a temperature sensor (69) (step S20). An absolute value of the difference between the detected exhaust temperature (Te) and the calculated temperature (Tc) is taken, and if this temperature difference is greater than a prescribed value (T1), a fuel cell system is judged as having an abnormality (step S40) so that the vehicle should be stopped. If the temperature difference, however, is not greater than another prescribed value (T2), which is greater than the former value (T1), a switch is made to limp-home control.Type: GrantFiled: May 5, 2000Date of Patent: April 16, 2002Assignee: Nissan Motor Co., Ltd.Inventor: Yasushi Takeda
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Patent number: 6202400Abstract: To improve the thermal efficiency when an exhaust heat recovery type combined cycle plant having a gas turbine and a steam turbine in combination is operated at a partial load, the gas turbine exhaust is recirculated and returned to the compressor, and the combustion temperature is prevented from being lowered at the partial load. Preferably, the temperature is maintained constant. In this way, the thermal efficiency during operation at partial load can be improved.Type: GrantFiled: March 9, 2000Date of Patent: March 20, 2001Assignee: Hitachi, Ltd.Inventors: Motoaki Utamura, Shinichi Hoizumi, Yasushi Takeda, Toshihiko Sasaki, Hideaki Komatsu, Seiichi Kirikami, Takeshi Suzumura, Tetsuo Sasada, Takashi Ikeguchi, Shigehisa Sugita
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Patent number: 6189591Abstract: A wafer sheet expanding apparatus comprises an expanding mechanism, a rotating mechanism for the expanding mechanism, a motor, a power transfer mechanism. The expanding mechanism has a support ring, an expanding ring, and a movement mechanism. The support ring has a hole at a central part thereof and a circular annulus portion formed projectively on an outer-peripheral portion of the hole and an upper end for supporting a wafer sheet retained by a wafer ring. The expanding ring is disposed opposite the support ring and has an annular portion that is loosely fitted over the circular annulus portion. The movement mechanism causes relative movement of the support ring and the expanding ring. The expanding mechanism stretches the wafer sheet by relative movement of the support ring and the expanding ring. The power transfer mechanism connects the movement mechanism and the rotating mechanism to a motor selectively.Type: GrantFiled: January 22, 1999Date of Patent: February 20, 2001Assignee: Shibaura Mechatronics CorporationInventors: Makoto Ariye, Yasushi Takeda
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Patent number: 6173562Abstract: To improve the thermal efficiency when an exhaust heat recovery type combined cycle plant having a gas turbine and a steam turbine in combination is operated at a partial load, the gas turbine exhaust is recirculated and returned to the compressor, and the combustion temperature is prevented from being lowered at the partial load. Preferably, the temperature is maintained constant. In this way, the thermal efficiency during operation at partial load can be improved.Type: GrantFiled: February 12, 1998Date of Patent: January 16, 2001Assignee: Hitachi, Ltd.Inventors: Motoaki Utamura, Shinichi Hoizumi, Yasushi Takeda, Toshihiko Sasaki, Hideaki Komatsu, Seiichi Kirikami, Takeshi Suzumura, Tetsuo Sasada, Takashi Ikeguchi, Shigehisa Sugita
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Patent number: 5923135Abstract: Described are control apparatus and method for a motor applicable to an electric vehicle in which a motor drive circuit having a plurality of arms, each arm including same series-connected semiconductor switching devices for controllably switching a voltage applied thereacross from a DC power supply so as to apply an AC power to the motor, is associated with the motor, switching operations of the respective semiconductor switching devices so as to regulate a driving of the motor according to a torque instruction inputted thereto are controlled, a temperature having a correlation to a junction temperature of at least one semiconductor switching device is detected, the detected temperature is read, the junction temperature of the semiconductor switching device from the detected temperature is estimated, a determination is made whether the estimated junction temperature is above an allowable limit of the junction temperature, and an output of the motor drive circuit to the motor is adjusted so that the estimatedType: GrantFiled: November 25, 1997Date of Patent: July 13, 1999Assignee: Nissan Motor Co., LtdInventor: Yasushi Takeda
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Patent number: 5905046Abstract: A water-disintegrable sheet having biodegradability. The sheet comprises one or more kinds of biodegradable synthetic fibers, and one or more kinds of natural fibers and/or regenerated fibers, all the fibers being bound together by a binder such that the binding power of the binder will be substantially lost in water. The sheet has a given degree of tensile strength and good softness, coupled with a required degree of liquid absorbency, and still has some biodegradation property. Therefore, the sheet can be flushed in a flush toilet without involving any appreciable increase in the volume of solid residues in a septic tank and/or in a sewage disposal plant and is therefore suitable for use in the form of a wet wiper in particular.Type: GrantFiled: April 23, 1997Date of Patent: May 18, 1999Assignees: Uni-Charm Corporation, Unitika Ltd.Inventors: Yasushi Takeda, Toshiya Okubo, Chieko Arita, Chizu Otani, Yoshishige Yoshioka, Fumio Matsuoka, Naoji Ichise
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Patent number: 5794431Abstract: To improve the thermal efficiency when an exhaust heat recovery type combined cycle plant having a gas turbine and a steam turbine in combination is operated at a partial load, the gas turbine exhaust is recirculated and returned to the compressor, and the combustion temperature is prevented from being lowered at the partial load. Preferably, the temperature is maintained constant. In this way, the thermal efficiency during operation at partial load can be improved.Type: GrantFiled: December 6, 1995Date of Patent: August 18, 1998Assignee: Hitachi, Ltd.Inventors: Motoaki Utamura, Shinichi Hoizumi, Yasushi Takeda, Toshihiko Sasaki, Hideaki Komatsu, Seiichi Kirikami, Takeshi Suzumura, Tetsuo Sasada, Takashi Ikeguchi, Shigehisa Sugita
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Patent number: 5516026Abstract: A pellet bonding apparatus is disclosed, which comprises a wafer stage, a pellet removal/transfer mechanism, a pellet position correcting mechanism, and a bonding mechanism. In the wafer stage, the wafer ring unit can be rotated through an angle corresponding to each of a plurality of areas, into which a pellet group of a wafer ring unit provided on the wafer stage can be divided. The pellet position correcting mechanism rotates a rotary table through a predetermined angle irrespective of whether the wafer ring unit has been rotated or not, whereby pellet position correction is made such that the pellet has the same orientation at all times when being removed by the bonding mechanism. A sheet expander can set the wafer ring unit on the wafer stage. It has an expander ring with an end formed with air stream outlet ports.Type: GrantFiled: October 20, 1994Date of Patent: May 14, 1996Assignee: Toshiba Automation Co., Ltd.Inventors: Makoto Ariye, Yasushi Takeda, Katsuyoshi Kawabe
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Patent number: 5227222Abstract: An in-mold decorated illumination panel including an indicator sheet, an ink printed layer formed on a back surface of the indicator sheet, the ink printed layer having a printed indicator portion, and a molded layer formed on a back surface of the ink printed layer by injection molding, wherein the printed indicator portion is illuminated from the back surface of the ink printed layer to effect indication of the printed indicator portion on a front surface of the indicator sheet. An ink dissolution preventing sheet is interposed between the ink printed layer and the molded layer for preventing ink of the printed indicator portion from being dissolved away by pressure of a molding material in the injection molding.Type: GrantFiled: January 21, 1992Date of Patent: July 13, 1993Assignee: Alps Electric Co., Ltd.Inventors: Yasuaki Ogawa, Yasushi Takeda, Akira Sakai, Takejirou Takeda, Akihiro Nakamura, Hiroyuki Miyaguchi
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Patent number: 4961984Abstract: A TAB film tape carrier used for making semiconductor devices is described. This TAB film tape carrier comprises a substrate, and copper foil wiring on the substrate and having a predetermined lead form patterned by laminating and etching, the copper foil wiring being made of rolling copper recrystallized by annealing treatment.Type: GrantFiled: June 30, 1989Date of Patent: October 9, 1990Assignee: Kabushiki Kaisha ToshibaInventor: Yasushi Takeda