Patents by Inventor Takao Ichihara
Takao Ichihara 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: 10162469Abstract: [Object] In a touch screen in which an electrode portion is formed on a base film, a pattern of the electrode portion is made less visible. [Solution] A touch screen 1 includes a first base film 11, a first transparent electrode 15, a second base film 13, a second transparent electrode 17, and a second intermediate base film 21. The first transparent electrode 15 is formed on the first base film 11. The second base film 13 is placed to face the first base film 11. The second transparent electrode 17 is formed on the second base film 13. The second intermediate base film 21 has a retardation value of 3000 nm or more and is placed so that a contraction direction thereof and contraction directions of the first base film 11 and the second base film 13 are matched.Type: GrantFiled: November 18, 2015Date of Patent: December 25, 2018Assignee: NISSHA PRINTING CO., LTD.Inventors: Takashi Yokoyama, Takao Ichihara, Kenji Okumura, Kazuhiro Nishikawa
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Publication number: 20170277299Abstract: [Object] In a touch screen in which an electrode portion is formed on a base film, a pattern of the electrode portion is made less visible. [Solution] A touch screen 1 includes a first base film 11, a first transparent electrode 15, a second base film 13, a second transparent electrode 17, and a second intermediate base film 21. The first transparent electrode 15 is formed on the first base film 11. The second base film 13 is placed to face the first base film 11. The second transparent electrode 17 is formed on the second base film 13. The second intermediate base film 21 has a retardation value of 3000 nm or more and is placed so that a contraction direction thereof and contraction directions of the first base film 11 and the second base film 13 are matched.Type: ApplicationFiled: November 18, 2015Publication date: September 28, 2017Inventors: Takashi YOKOYAMA, Takao ICHIHARA, Kenji OKUMURA, Kazuhiro NISHIKAWA
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Patent number: 9716455Abstract: A power conversion device includes an inverter which can convert between DC and AC power by turning on and off bridge-connected semiconductor switching elements with free wheel diodes connected in reverse parallel; and a rotating electric machine, such as an AC generator or motor, which is connected to the AC terminals of the inverter, where when the DC voltage of the inverter is below a specified value when starting the machine, the speed of the machine is detected in a condition where the DC voltage of the inverter is boosted to at least a specified value of the induced voltage of the machine, by intermittently turning on and off at least one of the switching elements, so as to accurately detect the speed of the machine and stably start it even when the DC voltage of the inverter is lower than the induced voltage of the machine.Type: GrantFiled: April 7, 2015Date of Patent: July 25, 2017Assignee: FUJI ELECTRIC CO., LTD.Inventors: Nobuo Itoigawa, Takao Ichihara
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Publication number: 20150214876Abstract: A power conversion device includes an inverter which can convert between DC and AC power by turning on and off bridge-connected semiconductor switching elements with free wheel diodes connected in reverse parallel; and a rotating electric machine, such as an AC generator or motor, which is connected to the AC terminals of the inverter, where when the DC voltage of the inverter is below a specified value when starting the machine, the speed of the machine is detected in a condition where the DC voltage of the inverter is boosted to at least a specified value of the induced voltage of the machine, by intermittently turning on and off at least one of the switching elements, so as to accurately detect the speed of the machine and stably start it even when the DC voltage of the inverter is lower than the induced voltage of the machine.Type: ApplicationFiled: April 7, 2015Publication date: July 30, 2015Applicant: FUJI ELECTRIC CO., LTD.Inventors: Nobuo ITOIGAWA, Takao ICHIHARA
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Patent number: 9066721Abstract: A gutclamper includes two hard rod-like bodies having flexible belts on one ends, a joint at which the rod-like bodies are joined, and at least one through hole made in one of the belts. The gut tract is clipped by using the two hard rod-like bodies and the joint as a pivot. By clipping the gut tract by side surfaces of the rod-like bodies, it can be clipped while the width of the gut is pressed and widened, so that the gut is prevented from being excessively clamped and torn. In addition, the two rod-like bodies are made different in length from each other, a through hole is made in the belt connected to the shorter rod-like body, and the tip end of the longer rod-like body is fit into the through hole and locked, so that reliable clipping is realized without an excessive burden being placed on an operator.Type: GrantFiled: September 22, 2005Date of Patent: June 30, 2015Assignee: National University Corporation Kobe UniversityInventors: Takao Ichihara, Moriatsu Takada, Yoshikazu Kuroda
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Patent number: 8274768Abstract: The inverter device includes an IGBT bridge circuit, a drive block which has an upper arm photocoupler and a lower arm photocoupler, and a control block including a CPU which generates gate signals and supplies them to the photocouplers. The control block includes an upper arm shutdown circuit and lower arm shutdown circuit which individually shutdown the gate signals of the upper arm and lower arm IGBTs in accordance with shutdown signals input from the exterior, and the shutdown circuits carry out a shutdown operation in accordance with the shutdown signals, which have mutually inverted logics.Type: GrantFiled: June 7, 2010Date of Patent: September 25, 2012Assignee: Fuji Electric Co., Ltd.Inventors: Kenichiro Ueki, Takao Ichihara
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Publication number: 20100309589Abstract: The inverter device includes an IGBT bridge circuit, a drive block which has an upper arm photocoupler and a lower arm photocoupler, and a control block including a CPU which generates gate signals and supplies them to the photocouplers . The control block includes an upper arm shutdown circuit and lower arm shutdown circuit which individually shutdown the gate signals of the upper arm and lower arm IGBTs in accordance with shutdown signals input from the exterior, and the shutdown circuits carry out a shutdown operation in accordance with the shutdown signals, which have mutually inverted logics.Type: ApplicationFiled: June 7, 2010Publication date: December 9, 2010Applicant: FUJI ELECTRIC SYSTEMS CO., LTD.Inventors: Kenichiro Ueki, Takao Ichihara
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Publication number: 20090138024Abstract: A convenient surgical auxiliary tool for covering of exo-serous membrane exposed tumor, capable of preventing any man-caused dissipation of tumor cells attributed to surgical manipulation in the digestive organs, etc. There is provided a surgical auxiliary tool comprising a pair of frame members having the respective free end portions rotatably coupled with each other; an accommodation bag having its rim of opening portion fixed to the coupled pair of frame members; and a locking part disposed at substantially the center of the frame members and capable of maintaining the closed state of the pair of frame members. By virtue of this construction, the intestine on the periphery of an area of infiltration of the serous membrane can be pinched by means of the pair of frame members having the respective free end portions rotatably coupled with each other.Type: ApplicationFiled: August 3, 2006Publication date: May 28, 2009Applicant: National University Corporation Kobe UniversityInventors: Takao Ichihara, Moriatsu Takada
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Patent number: 7504796Abstract: A running pattern of one cycle in a preset industrial machine is observed by a current detector and a temperature rise value estimating unit that are additionally provided in a traditional inverter device. The temperature rise value estimating unit derives a maximum temperature rise estimate value for each constituent element in the case where the running pattern is periodically repeated, on the basis of observation data of the one cycle and a temperature rise model of each constituent element of the inverter device.Type: GrantFiled: February 7, 2007Date of Patent: March 17, 2009Assignee: Fuji Electric FA Components & Systems Co., Ltd.Inventor: Takao Ichihara
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Publication number: 20070265644Abstract: A gutclamper includes two hard rod-like bodies having flexible belts on one ends, a joint at which the rod-like bodies are joined, and at least one through hole made in one of the belts. The gut tract is clipped by using the two hard rod-like bodies and the joint as a pivot. By clipping the gut tract by side surfaces of the rod-like bodies, it can be clipped while the width of the gut is pressed and widened, so that the gut is prevented from being excessively clamped and torn. In addition, the two rod-like bodies are made different in length from each other, a through hole is made in the belt connected to the shorter rod-like body, and the tip end of the longer rod-like body is fit into the through hole and locked, so that reliable clipping is realized without an excessive burden being placed on an operator.Type: ApplicationFiled: September 22, 2005Publication date: November 15, 2007Applicant: National University Corporaton KOBE UniversityInventors: Takao Ichihara, Moriatsu Takada, Yoshikazu Kuroda
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Publication number: 20070205742Abstract: A running pattern of one cycle in a preset industrial machine is observed by a current detector and a temperature rise value estimating unit that are additionally provided in a traditional inverter device. The temperature rise value estimating unit derives a maximum temperature rise estimate value for each constituent element in the case where the running pattern is periodically repeated, on the basis of observation data of the one cycle and a temperature rise model of each constituent element of the inverter device.Type: ApplicationFiled: February 7, 2007Publication date: September 6, 2007Inventor: Takao Ichihara
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Patent number: 5770300Abstract: A metallic printed board is formed by laminating an insulation layer on the surface of a metallic sheet as a base, and then electronic parts are mounted on the conductor pattern formed on the surface of the insulation layer. A double-sided printed board mounted thereon electronic parts is placed in parallel. Both the printed boards are supported and fixed monolithically by filling the space between the printed boards with an insulation resin and curing the resin. Furthermore, an insulation resin is laminated on the surface of the printed board in such a manner that the resin may cover the mounted electronic parts, and cured. The heat generated from the electronic parts can be efficiently transmitted to the insulation resins by using a resin having a high thermal conductivity for both of the insulation resins, and the heat is then emitted from the surfaces of the metallic sheet or the insulation resin.Type: GrantFiled: December 3, 1996Date of Patent: June 23, 1998Assignee: Fuji Electric Co., Ltd.Inventors: Kenji Okamoto, Yukio Nakajima, Kazuhiko Imamura, Takao Ichihara
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Patent number: 5684687Abstract: A driver circuit for an inverter includes a switching circuit formed of a first switching element and a second switching element connected in series, which are turned on and off in complementary with one another; a first DC power supply connected parallel to the switching circuit; a first driver circuit connected to the first switching element for driving the same; a second driver circuit connected to the second switching element for driving the same; a second DC power supply connected to the second driver circuit for supplying electric power to the second driver circuit; and a first capacitor connected to the first driver circuit and having a charge-up path communicating with the second DC power supply. During an ON-period of the second switching element, the first capacitor is charged up through the second DC power supply and supplies electric power to the first driver circuit.Type: GrantFiled: December 11, 1995Date of Patent: November 4, 1997Assignee: Fuji Electric Co., Ltd.Inventor: Takao Ichihara
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Patent number: 5672414Abstract: A metallic printed board is formed by laminating an insulation layer on the surface of a metallic sheet as a base, and then electronic parts are mounted on the conductor pattern formed on the surface of the insulation layer. A double-sided printed board mounted thereon electronic parts is placed in parallel. Both the printed boards are supported and fixed monolithically by filling the space between the printed boards with an insulation resin and curing the resin. Furthermore, an insulation resin is laminated on the surface of the printed board in such a manner that the resin may cover the mounted electronic parts, and cured. The heat generated from the electronic parts can be efficiently transmitted to the insulation resins by using a resin having a high thermal conductivity for both of the insulation resins, and the heat is then emitted from the surfaces of the metallic sheet or the insulation resin.Type: GrantFiled: June 21, 1994Date of Patent: September 30, 1997Assignee: Fuji Electric Co., Ltd.Inventors: Kenji Okamoto, Yukio Nakajima, Kazuhiko Imamura, Takao Ichihara
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Patent number: 5499177Abstract: An inverter device with a circuit for generating pulse width modulation (PWM) signal is formed of an inverter section and a circuit. The circuit includes an U/D counter 4 for regulating a control cycle of a PWM waveform, a register 1C for storing on-timing information of the PWM waveform, and a register 1D for storing off-timing information of the PWM waveform. The circuit is actuated by one of first and second modes. In the first mode, the PWM waveform is outputted by comparing an output of the counter 4 with the respective outputs of the registers 1C, 1D. In the second mode, the counter 4 counts down a signal, and after reaching zero, the counter counts up again, which is made within one cycle and is compared with only the output of the register 1C to output the PWM waveform. In the second mode, the reset level is not calculated, so that load to CPU is relieved, and the carrier cycle is shortened.Type: GrantFiled: October 26, 1994Date of Patent: March 12, 1996Assignee: Fuji Electric Co., Ltd.Inventor: Takao Ichihara
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Patent number: 5404116Abstract: A circuit for generating pulse width modulation (PWM) signal is formed of an U/D counter 4 for regulating a control cycle of a PWM waveform, a register 1C for storing on-timing information of the PWM waveform, and a register 1D for storing off-timing information of the PWM waveform. The circuit is actuated by one of first and second modes. In the first mode, the PWM waveform is outputted by comparing output of the counter 4 with the respective outputs of the registers 1C, 1D. In the second mode, the counter 4 counts down a signal, and after reaching zero, the counter counts up again, which is made within one cycle and is compared with only the output of the register 1C to output the PWM waveform. In the second mode, the reset level is not calculated, so that load to CPU is relieved, and the carrier cycle is shortened.Type: GrantFiled: April 20, 1993Date of Patent: April 4, 1995Assignee: Fuji Electric Co., Ltd.Inventor: Takao Ichihara