Patents by Inventor Koji Aoyagi
Koji Aoyagi 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: 8221897Abstract: A rolled copper foil according to the present invention includes a crystal grain alignment wherein: when normalized intensity of {200}Cu plane diffraction of a copper crystal in results obtained by an X-ray diffraction pole figure measurement with respect to a rolled surface is plotted against at different values of angle ?, the normalized intensity being obtained during a ? scanning in the pole figure measurement, a ratio of a maximum value A of the normalized intensity with angle ? in a range of 40° to 60° to a maximum value B of the normalized intensity with angle ? in a range of 80° to 90° is equal to or greater than 4; and when the normalized intensity increases with increasing angle ? in a range of 25° to 45°, there is essentially no area in which the normalized intensity increases stepwise.Type: GrantFiled: July 8, 2008Date of Patent: July 17, 2012Assignee: Hitachi Cable, Ltd.Inventors: Takemi Muroga, Yasuyuki Ito, Koji Aoyagi, Yoshiki Yamamoto, Kenji Yokomizo
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Publication number: 20100291402Abstract: A rolled copper foil applied with a recrystallization annealing after a final cold rolling step and having a crystal grain alignment satisfying a ratio of [a]/[b]?3, where [a] and [b] are normalized average intensities of a {111}Cu plane diffraction of a copper crystal by ?-scanning at ?=35° and 74°, respectively, in an X-ray diffraction pole figure measurement to a rolled surface is manufactured by controlling a total working ratio in the final cold rolling step before the recrystallization annealing to be 94% or more; and controlling a working ratio per one pass in the final cold rolling step to be 15 to 50%.Type: ApplicationFiled: July 30, 2010Publication date: November 18, 2010Inventors: Takemi Muroga, Yasuyuki Ito, Koji Aoyagi, Yoshiki Yamamoto, Kenji Yokomizo, Katsumi Nomura
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Patent number: 7789977Abstract: A rolled copper foil applied with a recrystallization annealing after a final cold rolling step and having a crystal grain alignment satisfying a ratio of [a]/[b]?3, where [a] and [b] are normalized average intensities of a {111}Cu plane diffraction of a copper crystal by ?-scanning at ?=35° and 74°, respectively, in an X-ray diffraction pole figure measurement to a rolled surface is manufactured by controlling a total working ratio in the final cold rolling step before the recrystallization annealing to be 94% or more; and controlling a working ratio per one pass in the final cold rolling step to be 15 to 50%.Type: GrantFiled: March 7, 2007Date of Patent: September 7, 2010Assignee: Hitachi Cable, Ltd.Inventors: Takemi Muroga, Yasuyuki Ito, Koji Aoyagi, Yoshiki Yamamoto, Kenji Yokomizo, Katsumi Nomura
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Publication number: 20090017325Abstract: A rolled copper foil according to the present invention includes a crystal grain alignment wherein: when normalized intensity of {200}Cu plane diffraction of a copper crystal in results obtained by an X-ray diffraction pole figure measurement with respect to a rolled surface is plotted against at different values of angle ?, the normalized intensity being obtained during a ? scanning in the pole figure measurement, a ratio of a maximum value A of the normalized intensity with angle ? in a range of 40° to 60° to a maximum value B of the normalized intensity with angle ? in a range of 80° to 90° is equal to or greater than 4; and when the normalized intensity increases with increasing angle ? in a range of 25° to 45°, there is essentially no area in which the normalized intensity increases stepwise.Type: ApplicationFiled: July 8, 2008Publication date: January 15, 2009Inventors: Takemi Muroga, Yasuyuki Ito, Koji Aoyagi, Yoshiki Yamamoto, Kenji Yokomizo
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Publication number: 20080099110Abstract: A rolled copper foil applied with a recrystallization annealing after a final cold rolling step and having a crystal grain alignment satisfying a ratio of [a]/[b]?3, where [a] and [b] are normalized average intensities of a {111}Cu plane diffraction of a copper crystal by ?-scanning at ?=35° and 74°, respectively, in an X-ray diffraction pole figure measurement to a rolled surface is manufactured by controlling a total working ratio in the final cold rolling step before the recrystallization annealing to be 94% or more; and controlling a working ratio per one pass in the final cold rolling step to be 15 to 50%.Type: ApplicationFiled: March 7, 2007Publication date: May 1, 2008Inventors: Takemi Muroga, Yasuyuki Ito, Koji Aoyagi, Yoshiki Yamamoto, Kenji Yokomizo, Katsumi Nomura
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Patent number: 6931344Abstract: A test circuit is incorporated in a device having an output circuit for outputting a signal, and the test circuit carries out a verification of a connection of nodes of the device. The test circuit has a test data generating circuit and a test output buffer connected in parallel with output nodes of the output circuit. The test data generating circuit generates test data for carrying out a verification of a connection of the output nodes, and the test output buffer receives test data from the test data generating circuit and outputs the test data to the output nodes. Similarly, a test circuit is incorporated in a device having an input circuit for inputting a signal, and the test circuit carries out a verification of a connection of nodes of the device. The test circuit has a test data generating circuit and a test input buffer connected in parallel with input nodes of the input circuit.Type: GrantFiled: February 26, 2002Date of Patent: August 16, 2005Assignee: Fujitsu LimitedInventors: Kohtaroh Gotoh, Koji Aoyagi, Kazuhiro Terashima, Shigeru Nishio
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Patent number: 6603285Abstract: A power circuit is provided so that a charge can be normally driven even during replacement of a first battery. This power circuit comprises: first and second batteries for driving a charge; a first battery voltage detection means; a first switch for controlling a second battery power supply path based on an output of the voltage detection means; an overcharge prevention means for preventing an overcharge for the secondary battery caused by the first battery; and a switch controlled by an output of the overcharge prevention means.Type: GrantFiled: September 18, 2001Date of Patent: August 5, 2003Assignee: Sony CorporationInventors: Koji Aoyagi, Kuniharu Onozuka
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Publication number: 20030046015Abstract: A test circuit is incorporated in a device having an output circuit for outputting a signal, and the test circuit carries out a verification of a connection of nodes of the device. The test circuit has a test data generating circuit and a test output buffer connected in parallel with output nodes of the output circuit. The test data generating circuit generates test data for carrying out a verification of a connection of the output nodes, and the test output buffer receives test data from the test data generating circuit and outputs the test data to the output nodes. Similarly, a test circuit is incorporated in a device having an input circuit for inputting a signal, and the test circuit carries out a verification of a connection of nodes of the device. The test circuit has a test data generating circuit and a test input buffer connected in parallel with input nodes of the input circuit.Type: ApplicationFiled: February 26, 2002Publication date: March 6, 2003Applicant: FUJITSU LIMITEDInventors: Kohtaroh Gotoh, Koji Aoyagi, Kazuhiro Terashima, Shigeru Nishio
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Publication number: 20020036479Abstract: A power circuit is provided so that a charge can be normally driven even during replacement of a first battery. This power circuit comprises: first and second batteries for driving a charge; a first battery voltage detection means; a first switch for controlling a second battery power supply path based on an output of the voltage detection means; an overcharge prevention means for preventing an overcharge for the secondary battery caused by the first battery; and a switch controlled by an output of the overcharge prevention means.Type: ApplicationFiled: September 18, 2001Publication date: March 28, 2002Inventors: Koji Aoyagi, Kuniharu Onozuka
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Patent number: 5414544Abstract: Disclosed is a head-mount type display apparatus having an optical system which is of the back-irradiation type by which the user can see an extremely high-quality video image and by which the user makes only in-focus adjustment thereby improving operation convenience. The head-mount type display apparatus includes at least two optical systems each including a light source, a LCD through which the light from the light source is passed, a reflecting plate which reflects the light passing through the LCD, a screen on the back side of which the reflected light from the reflecting plate is focused to form an image and a lens by which the light from the screen is focused to form an image at a viewing point, and a head-mount type member for supporting the two optical systems which are opposed to left and right eyes. According to the preferred embodiment, interference and distortion in the projected images arising from the image of the edges of the LCDs is substantially reduced.Type: GrantFiled: December 20, 1993Date of Patent: May 9, 1995Assignee: Sony CorporationInventors: Koji Aoyagi, Toshio Kimura