Patents by Inventor Naoki Takada
Naoki Takada 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: 8957845Abstract: An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.Type: GrantFiled: June 27, 2013Date of Patent: February 17, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Norio Mamba, Naoki Takada, Yasuyuki Kudo, Tsutomu Furuhashi
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Publication number: 20150017372Abstract: The present invention is to provide a method of manufacturing a resin-encapsulated electronic component and an apparatus for manufacturing a resin-encapsulated electronic component that enable the manufacture of a resin-encapsulated electronic component including a plate-like member in a simple manner at low cost. The method of manufacturing a resin-encapsulated electronic component, the resin-encapsulated electronic component including a plate-like member 13, the method includes: placing a resin 15 on the plate-like member 13; transferring the resin 15 to a position of a die cavity 17a of a molding die in a state where the resin 15 is placed on the plate-like member 13; and performing resin-encapsulation of an electronic component by subjecting the resin 15 to compression molding together with the plate-like member 13 and the electronic component in a state where the electronic component is soaked in the resin 15 placed on the plate-like member 13 in the die cavity 17a.Type: ApplicationFiled: November 8, 2012Publication date: January 15, 2015Applicant: TOWA CORPORATIONInventors: Hiroshi Uragami, Keita Mizuma, Ichitaro Okamoto, Naoki Takada, Mamoru Nakamura, Shinsuke Yasuda
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Publication number: 20140375615Abstract: A gate signal line driving circuit which suppresses noises in a gate signal and a display device which uses the gate signal line driving circuit are provided. A first basic circuit provided to a gate signal line driving circuit includes a HIGH voltage applying switching element which applies a HIGH voltage to gate signal lines in response to a signal HIGH period, and a LOW voltage applying switching circuit which applies a LOW voltage to the gate signal lines in response to a signal LOW period. In response to a signal HIGH period, a switch of the LOW voltage applying switching circuit of the first basic circuit is turned off based on a signal applied to a switch of the HIGH voltage applying switching element of a second basic circuit which assumes a signal HIGH period earlier than the first basic circuit.Type: ApplicationFiled: September 5, 2014Publication date: December 25, 2014Inventors: Takahiro OCHIAI, Mitsuru GOTO, Youzou NAKAYASU, Yuki OKADA, Naoki TAKADA
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Patent number: 8854291Abstract: A gate signal line driving circuit which suppresses noises in a gate signal and a display device which uses the gate signal line driving circuit are provided. A first basic circuit provided to a gate signal line driving circuit includes a HIGH voltage applying switching element which applies a HIGH voltage to gate signal lines in response to a signal HIGH period, and a LOW voltage applying switching circuit which applies a LOW voltage to the gate signal lines in response to a signal LOW period. In response to a signal HIGH period, a switch of the LOW voltage applying switching circuit of the first basic circuit is turned off based on a signal applied to a switch of the HIGH voltage applying switching element of a second basic circuit which assumes a signal HIGH period earlier than the first basic circuit.Type: GrantFiled: May 24, 2010Date of Patent: October 7, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co. Ltd.Inventors: Takahiro Ochiai, Mitsuru Goto, Youzou Nakayasu, Yuki Okada, Naoki Takada
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Publication number: 20140247291Abstract: In a display driver, a first backlight control unit using a histogram and a second backlight control unit using an optical sensor can be used in combination. The display driver includes a PWM generating unit setting a control signal value consisting of a product of a luminance rate of X % and a luminance rate of Y % as a luminance rate of a control signal for controlling a backlight with respect to maximum backlight luminance when a luminance rate of a control signal obtained by first backlight control with respect to the maximum backlight luminance is X % and a luminance rate of a control signal obtained by second backlight control with respect to the maximum backlight luminance is Y %.Type: ApplicationFiled: May 13, 2014Publication date: September 4, 2014Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Naoki TAKADA, Yasuyuki KUDO, Yoshiki KUROKAWA, Goro SAKAMAKI
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Patent number: 8754841Abstract: In a display driver, a first backlight control unit using a histogram and a second backlight control unit using an optical sensor can be used in combination. The display driver includes a PWM generating unit setting a control signal value consisting of a product of a luminance rate of X % and a luminance rate of Y % as a luminance rate of a control signal for controlling a backlight with respect to maximum backlight luminance when a luminance rate of a control signal obtained by first backlight control with respect to the maximum backlight luminance is X % and a luminance rate of a control signal obtained by second backlight control with respect to the maximum backlight luminance is Y %.Type: GrantFiled: January 4, 2013Date of Patent: June 17, 2014Assignee: Renesas Electronics CorporationInventors: Naoki Takada, Yasuyuki Kudo, Yoshiki Kurokawa, Goro Sakamaki
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Patent number: 8674973Abstract: A liquid crystal display device employing a dot inversion drive method includes a pixel array, a data driver circuit, a short circuit, and a scanning circuit. The short circuit is disposed for respective outputs of the data driver circuit, and includes a switching element for connecting each of the outputs to a precharge voltage different from an output voltage. The short circuit includes the switching element disposed in one of a first switching group and a second switching group; the switching element of one of the first switching group and the second switching group is connected to respective pairs of pixel column units including an odd-numbered pixel column and an even-numbered pixel column which are adjacent to each other; and the pairs of pixel column units which are adjacent to each other are each connected to the switching element disposed in respective switching groups different from each other.Type: GrantFiled: July 28, 2010Date of Patent: March 18, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Naoki Takada, Naruhiko Kasai, Norio Mamba, Mitsuru Goto, Shuuichirou Matsumoto
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Publication number: 20140029763Abstract: A digital speaker system that can perform both enhancement of reproduction capability and simplification of construction is provided with a construction using plural speaker units for one audio channel. The digital speaker system has a first signal processor 32A for generating plural driving digital signals SS1 to SS6 from one digital audio signal SB1 into which an input digital audio signal SA is branched, and a second signal processor 32B for generating a single driving digital signal SS7 from the other digital audio signal SB2 into which the input digital audio signal SA is branched, and a speaker unit for one audio channel is constructed by a main speaker unit 22A having a voice coil bobbin 23A with plural voice coils supplied with the plural driving digital signals SS1 to SS6, and a sub speaker unit 22B having a voice coil bobbin 23B with a single voice coil supplied with the single driving digital signal.Type: ApplicationFiled: March 12, 2012Publication date: January 30, 2014Applicant: CLARION CO., LTD.Inventors: Naoki Takada, Kenji Kono, Hiroyuki Tanaka, Masayoshi Uehara
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Patent number: 8608243Abstract: A vehicle seat includes: a holder assembled to a back frame, the holder configured to receive a backrest load of a seated person via a pad member; a vibration device assembled to a rear side of the holder, the vibration device configured to give a local stimulus to a seated person's waist; an air massage device disposed in a through hole formed in a thickness direction of the pad member, the air massage device configured to locally press a seated person's back; and a lumbar support device configured to change a projecting amount of a receiving surface of a seat back, wherein the lumbar support device has a rod configured to be movable between an advancing position and a retreating position to change the projecting amount of the receiving surface of the seat back, and wherein the rod is disposed between the holder and the vibration device.Type: GrantFiled: August 6, 2010Date of Patent: December 17, 2013Assignee: Toyota Boshoku Kabushiki KaishaInventors: Michitaka Maeda, Naoki Takada, Masato Oguri, Masahiro Sanou, Kazuyoshi Fujisaka
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Publication number: 20130285890Abstract: An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the fullscale expansion.Type: ApplicationFiled: June 27, 2013Publication date: October 31, 2013Applicants: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., HITACHI DISPLAYS, LTD.Inventors: Norio MAMBA, Naoki TAKADA, Yasuki KUDO, Tsutomu FURUHASHI
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Patent number: 8552946Abstract: In a display device and a display driver, when a grayscale of a display image is equal to or lower than a specific grayscale value obtained from a histogram of the display image, a display grayscale is extended with a linear function. On the other hand, when a grayscale of a display image is equal to or higher than the specific grayscale value, histogram equalization of a part higher than the specific grayscale value is performed, and the display grayscale is extended with a non-linear function obtained from the histogram equalization.Type: GrantFiled: April 24, 2008Date of Patent: October 8, 2013Assignee: Renesas Electronics CorporationInventors: Yoshiki Kurokawa, Yukari Katayama, Hiroki Awakura, Naoki Takada, Yasuyuki Kudo, Akihito Akai, Goki Toshima, Akihisa Aoyama, Goro Sakamaki
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Publication number: 20130199274Abstract: Provided are a leakage inspection apparatus and a leakage inspection method for inspecting the flow rate of leakage from a tested body disposed in a tested-body chamber 21. The leakage inspection apparatus includes liquid supplying and pressurizing means 11 for supplying a probe liquid to the inside of the tested-body chamber 21 and pressurizing the probe liquid to a high pressure 0.1 MPa or more, vacuum evacuation means 22-b, 23-b and a quadrupole mass spectrometer 34. The tested body 21 is evacuated, the probe liquid is supplied to the inside of the tested body and pressurized to 0.1 MPa or more and the concentration of a probe medium leaked from the tested body and evaporated in a vacuum is measured by the quadrupole mass spectrometer 34, thereby measuring the flow rate of leakage from the tested body. This makes it possible to determine the flow rate of leakage using a liquid as a probe medium and simultaneously possible to perform a pressure tightness inspection at an atmospheric pressure of 0.Type: ApplicationFiled: July 1, 2011Publication date: August 8, 2013Applicants: MARUNAKA CO., LTD., YAMAGUCHI UNIVERSITYInventors: Setsuo Yamamoto, Hiroki Kurisu, Naoki Takada, Mitsugu Nakagawa, Katsushi Tsuge, Yukihiro Ishikawa
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Patent number: 8493305Abstract: An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.Type: GrantFiled: June 12, 2008Date of Patent: July 23, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Norio Mamba, Naoki Takada, Yasuyuki Kudo, Tsutomu Furuhashi
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Patent number: 8451260Abstract: Each shift register includes a first element controlled by a first potential node to supply a first driving voltage to an output terminal, a second element controlled by a second potential node to supply a second driving voltage lower than the first driving voltage to the output terminal, and a third element for controlling the first potential node and the second potential node so as to have opposite potential levels. Voltages are applied to the third element so that a state of A>B and A>C and a state of A<B and A<C, or a state of A>B and A<C and a state of A<B and A>C, or a state of A<B and A>C and a state of A>B and A<C are switched alternately (A: a gate terminal of the third element, B: a voltage applied to a first terminal thereof, C: a voltage applied to a second terminal thereof).Type: GrantFiled: June 24, 2010Date of Patent: May 28, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yuki Okada, Mitsuru Goto, Takahiro Ochiai, Naoki Takada, Youzou Nakayasu
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Publication number: 20130120480Abstract: In a display driver, a first backlight control unit using a histogram and a second backlight control unit using an optical sensor can be used in combination. The display driver includes a PWM generating unit setting a control signal value consisting of a product of a luminance rate of X % and a luminance rate of Y % as a luminance rate of a control signal for controlling a backlight with respect to maximum backlight luminance when a luminance rate of a control signal obtained by first backlight control with respect to the maximum backlight luminance is X % and a luminance rate of a control signal obtained by second backlight control with respect to the maximum backlight luminance is Y %.Type: ApplicationFiled: January 4, 2013Publication date: May 16, 2013Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Naoki TAKADA, Yasuyuki KUDO, Yoshiki KUROKAWA, Goro SAKAMAKI
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Publication number: 20130044146Abstract: In a display device and a display driver, when a grayscale of a display image is equal to or lower than a specific grayscale value obtained from a histogram of the display image, a display grayscale is extended with a linear function. On the other hand, when a grayscale of a display image is equal to or higher than the specific grayscale value, histogram equalization of a part higher than the specific grayscale value is performed, and the display grayscale is extended with a non-linear function obtained from the histogram equalization.Type: ApplicationFiled: October 9, 2012Publication date: February 21, 2013Inventors: Yoshiki KUROKAWA, Yukari KATAYAMA, Hiroki AWAKURA, Naoki TAKADA, Yasuyuki KUDO, Akihito AKAI, Goki TOSHIMA, Akihisa AOYAMA, Goro SAKAMAKI
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Publication number: 20130022219Abstract: There is provided a voice coil speaker containing a bobbin having multilayer voice coils formed thereon in which the bobbin and a circuit board are properly arranged. In a voice coil speaker equipped with a bobbin having multilayer voice coils formed thereon and a diaphragm connected to the bobbin, the bobbin and the diaphragm being provided in a speaker body, an audio signal processing circuit board for processing an audio signal is disposed ahead of the diaphragm, and plural output terminals for outputting to the multilayer voice coils are arranged in the peripheral direction of the audio signal processing circuit board.Type: ApplicationFiled: February 14, 2011Publication date: January 24, 2013Applicant: CLARION CO., LTD.Inventors: Naoki Takada, Hiroyuki Tanaka, Kenji Kono, Masayoshi Uehara
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Patent number: 8339390Abstract: Provided are a power supply circuit and a display device which are capable of enhancing power efficiency even when applied to a display panel whose current consumption varies. The power supply circuit boosts and outputs an input voltage using a booster chopper circuit. A frequency control circuit changes a frequency of a clock signal, which controls a switch of the chopper circuit, in accordance with a load of the power supply circuit. The frequency control circuit divides an operation of the display device into a display effective period at a high load and a vertical retrace period at a low load, based on a vertical synchronizing signal and a horizontal synchronizing signal. The frequency control circuit sets the frequency of the clock signal in a high-load period to be higher than that in a low-load period.Type: GrantFiled: November 25, 2009Date of Patent: December 25, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Naoki Takada, Naruhiko Kasai, Takuya Eriguchi, Yuki Okada, Mitsuru Goto, Yoshihiro Kotani
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Patent number: 8314761Abstract: A processing portion for conversion from RGB to RGBW includes a W generating circuit, a sub-pixel rendering circuit, a W intensity calculating portion which transmits a W intensity setting value to a W generating circuit, and a low power backlight control circuit which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion. A backlight control signal is generated based on the amount of data expansion in the sub-pixel rendering portion. Deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved.Type: GrantFiled: June 15, 2012Date of Patent: November 20, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Naoki Takada, Yasuyuki Kudo, Yoshiki Kurokawa, Norio Mamba, Shinichi Komura
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Publication number: 20120249613Abstract: A processing portion for conversion from RGB to RGBW includes a W generating circuit, a sub-pixel rendering circuit, a W intensity calculating portion which transmits a W intensity setting value to a W generating circuit, and a low power backlight control circuit which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion. A backlight control signal is generated based on the amount of data expansion in the sub-pixel rendering portion. Deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved.Type: ApplicationFiled: June 15, 2012Publication date: October 4, 2012Inventors: Naoki TAKADA, Yasuyuki Kudo, Yoshiki Kurokawa, Norio Mamba, Shinichi Komura