Patents by Inventor Yuzo Nishinaka
Yuzo Nishinaka 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: 8421788Abstract: It is an object of the present invention to provide an image display apparatus which enables cost reduction while being free from electromagnetic interference problems. A power supply circuit comprises, on a single circuit board, an AC inlet to which a power cord is connected from an external AC power supply, a filter circuit to which an inductance element is connected to suppress leakage of electromagnetic waves to the outside of the image display apparatus, and a switch which switches on/off an AC output supplied from the filter circuit. The circuit board of the power supply circuit is entirely covered by electromagnetic shielding means to shield electromagnetic waves. The electromagnetic shielding means is composed of, for example, a first shielding section which surrounds the lateral side of the circuit board and a second shielding section which covers the upper side of the circuit board. The second shielding section is formed of a part of the flat section of a rear cover of the image display apparatus.Type: GrantFiled: November 27, 2006Date of Patent: April 16, 2013Assignee: Hitachi, Ltd.Inventors: Hidenao Kubota, Yuzo Nishinaka, Yuki Iwane, Yutaka Yamada, Katsunobu Kimura
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Patent number: 8320119Abstract: For improving a cooling efficiency of a display panel in a flat-type image display, various substrates and an image display element are disposed within a thin-sized housing thereof, including: a display panel; a chassis supporting the display panel from a rear surface side thereof; a front surface-side cover on a front side of the display panel; a rear surface-side cover on a rear side of the display panel; an image display element connected to the display panel; a display driver substrate connected to the display panel, and on a surface thereof opposite to the chassis are provided circuit parts; a power source substrate, supplying driving power to the display driver substrate and the image display element, and on a surface thereof opposite to the chassis are provided circuit parts thereof; and a first insulator board opposite to the display driver substrates and the power source substrate of the chassis.Type: GrantFiled: December 30, 2009Date of Patent: November 27, 2012Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Nobuyuki Isoshima, Kohei Miyoshi, Mika Ri, Yutaka Yamada, Toshihiro Tsutsui, Teppei Tanaka, Hidenao Kubota, Yuzo Nishinaka
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Patent number: 8085259Abstract: The present invention improves the reliability of a display apparatus by suppressing the temperature rise of the display apparatus mounted on a wall. The display apparatus is provided with a wall mount switch to detect a wall mount member if the wall mount member is attached to the rear of the display apparatus. If it is detected by the wall mount switch that the display apparatus is mounted on a wall, the display power supplied to a display unit is set lower than normal by a power controller. This suppresses the temperature rise of the apparatus mounted on a wall.Type: GrantFiled: April 24, 2009Date of Patent: December 27, 2011Assignee: Hitachi, Ltd.Inventors: Hidenao Kubota, Yuzo Nishinaka, Yutaka Yamada
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Patent number: 7813127Abstract: There is provided a digital broadcasting receiver apparatus in which a temperature in the area surrounding a removable HDD does not become a high temperature during an operation regardless of whether it is disposed horizontally or vertically. A component with a large heat generating quantity and a component with a small heat generating quantity are installed in respective spaces inside a case. An adapter of the removable HDD is mounted to dispose the removable HDD in a space in which a component with a small heat generating quantity is mounted, thereby preventing the temperature in the area surrounding the removable HDD from becoming a high temperature.Type: GrantFiled: December 4, 2008Date of Patent: October 12, 2010Assignee: Hitachi, Ltd.Inventors: Jun Nishikawa, Toru Inoue, Shinji Nishi, Yuzo Nishinaka, Toru Watanabe, Yoshiharu Yamashita
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Publication number: 20100194787Abstract: White noise images and white noise-like pattern images are discerned by making use of the fact that the address current is increased when such an image is entered and detecting the address current by an address current detection circuit. When the detected address current exceeds a given value ? and persists for a given period of time, a CPU controls a contrast control circuit to lower the contrast of the video signal, thus reducing the power consumption of an address driver circuit.Type: ApplicationFiled: November 9, 2009Publication date: August 5, 2010Inventors: Toshihiro TSUTSUI, Hidenao Kubota, Hirohito Kuriyama, Yuzo Nishinaka
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Publication number: 20100172098Abstract: A flat-type image display, such as, a plasma display, a LCD display, an OLED display, etc.Type: ApplicationFiled: December 30, 2009Publication date: July 8, 2010Inventors: Nobuyuki Isoshima, Kohei Miyoshi, Mika Ri, Yutaka Yamada, Toshihiro Tsutsui, Teppei Tanaka, Hidenao Kubota, Yuzo Nishinaka
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Publication number: 20100053140Abstract: The present invention improves the reliability of a display apparatus by suppressing the temperature rise of the display apparatus mounted on a wall. The display apparatus is provided with a wall mount switch to detect a wall mount member if the wall mount member is attached to the rear of the display apparatus. If it is detected by the wall mount switch that the display apparatus is mounted on a wall, the display power supplied to a display unit is set lower than normal by a power controller. This suppresses the temperature rise of the apparatus mounted on a wall.Type: ApplicationFiled: April 24, 2009Publication date: March 4, 2010Inventors: Hidenao Kubota, Yuzo Nishinaka, Yutaka Yamada
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Publication number: 20090147463Abstract: There is provided a digital broadcasting receiver apparatus in which a temperature in the area surrounding a removable HDD does not become a high temperature during an operation regardless of whether it is disposed horizontally or vertically. A component with a large heat generating quantity and a component with a small heat generating quantity are installed in respective spaces inside a case. An adapter of the removable HDD is mounted to dispose the removable HDD in a space in which a component with a small heat generating quantity is mounted, thereby preventing the temperature in the area surrounding the removable HDD from becoming a high temperature.Type: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Inventors: Jun NISHIKAWA, Toru Inoue, Shinji Nishi, Yuzo Nishinaka, Toru Watanabe, Yoshiharu Yamashita
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Publication number: 20070165017Abstract: It is an object of the present invention to provide an image display apparatus which enables cost reduction while being free from electromagnetic interference problems. A power supply circuit comprises, on a single circuit board, an AC inlet to which a power cord is connected from an external AC power supply, a filter circuit to which an inductance element is connected to suppress leakage of electromagnetic waves to the outside of the image display apparatus, and a switch which switches on/off an AC output supplied from the filter circuit. The circuit board of the power supply circuit is entirely covered by electromagnetic shielding means to shield electromagnetic waves. The electromagnetic shielding means is composed of, for example, a first shielding section which surrounds the lateral side of the circuit board and a second shielding section which covers the upper side of the circuit board. The second shielding section is formed of a part of the flat section of a rear cover of the image display apparatus.Type: ApplicationFiled: November 27, 2006Publication date: July 19, 2007Inventors: Hidenao Kubota, Yuzo Nishinaka, Yuki Iwane, Yutaka Yamada, Katsunobu Kimura
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Patent number: 6262779Abstract: A display apparatus for a television or computer terminal having a cathode ray tube with a deflection coil. The display apparatus includes a signal processing circuit which compresses a display period in a horizontal scanning period of an input video signal and which expands a blanking interval of the horizontal scanning period of the video signal, the signal processing circuit providing an output of the video signal to the cathode ray tube, and a horizontal retrace interval expansion circuit which expands a horizontal retrace line interval of a horizontal deflection current for the deflection coil of the cathode ray tube in accordance with the blanking period expanded by the signal processing circuit. The cathode ray tube displays the input video signal in accordance with the output of the signal processing circuit and the output of the horizontal retrace interval expansion circuit.Type: GrantFiled: February 10, 1999Date of Patent: July 17, 2001Assignee: Hitachi, LTDInventors: Masato Sugiyama, Makoto Onozawa, Kazuhiro Kaizaki, Mitsuo Nakajima, Yuzo Nishinaka, Junji Motoshima
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Patent number: 6108045Abstract: A display apparatus includes a luminance change detecting unit for detecting change of luminance of a cathode ray tube, a deflection size control quantity adjusting unit connected to the luminance change detecting unit for stabilizing a deflection size by changing a deflection size correcting quantity at different rates of change for a low luminance range and a high luminance range, respectively, on the basis of the detected change of luminance. The deflection size control quantity adjusting unit generates a proper deflection size control quantity adjusting voltage by synthesizing a high frequency component and a low frequency component contained in a signal indicating the luminance change with different gains, respectively.Type: GrantFiled: July 22, 1999Date of Patent: August 22, 2000Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.Inventors: Makoto Onozawa, Hironori Fukuda, Yuzo Nishinaka, Junji Motoshima
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Patent number: 6011593Abstract: A display apparatus includes a luminance change detecting unit for detecting change of luminance of a cathode ray tube, a deflection size control quantity adjusting unit connected to the luminance change detecting unit for stabilizing a deflection size by changing a deflection size correcting quantity at different rates of change for a low luminance range and a high luminance range, respectively, on the basis of the detected change of luminance. The deflection size control quantity adjusting unit generates a proper deflection size control quantity adjusting voltage by synthesizing a high frequency component and a low frequency component contained in a signal indicating the luminance change with different gains, respectively.Type: GrantFiled: August 8, 1997Date of Patent: January 4, 2000Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.Inventors: Makoto Onozawa, Hironori Fukuda, Yuzo Nishinaka, Junji Motoshima