Patents by Inventor Kenta Seki
Kenta Seki 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: 9170451Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: GrantFiled: July 24, 2014Date of Patent: October 27, 2015Assignee: JAPAN DISPLAY INC.Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Kouji Noguchi, Kenta Seki
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Publication number: 20150212374Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.Type: ApplicationFiled: January 22, 2015Publication date: July 30, 2015Applicant: Japan Display Inc.Inventors: Seiji UEJIMA, Hidemasa YAMAGUCHI, Yoshitaka OZEKI, Takeyuki TSURUMA, Kenta SEKI, Toshiaki FUKUSHIMA
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Publication number: 20150103289Abstract: A display device includes a display section in which a plurality of pixels are arrayed in a matrix, a plurality of scan lines which select pixels, a plurality of signal lines which supply image signals to the selected pixels, and color filters that are arranged so as to correspond to color displays of the pixels. In the device, the display section includes an effective pixel portion and a frame portion that surrounds the effective pixel portion, and the frame portion and a wiring circuit of the effective pixel portion are covered with light-shielding layers, the light-shielding layers being separated from each other at a certain separation location in the display section, and a plurality of color filters having different colors are arranged by being stacked at the separation location.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Inventors: Kenta Seki, Seiji Uejima, Ryo Yamaoka, Hidemasa Yamaguchi
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Patent number: 8934073Abstract: A display device includes a display section in which a plurality of pixels are arrayed in a matrix, a plurality of scan lines which select pixels, a plurality of signal lines which supply image signals to the selected pixels, and color filters that are arranged so as to correspond to color displays of the pixels. In the device, the display section includes an effective pixel portion and a frame portion that surrounds the effective pixel portion, and the frame portion and a wiring circuit of the effective pixel portion are covered with light-shielding layers, the light-shielding layers being separated from each other at a certain separation location in the display section, and a plurality of color filters having different colors are arranged by being stacked at the separation location.Type: GrantFiled: November 21, 2012Date of Patent: January 13, 2015Assignee: Japan Display West Inc.Inventors: Kenta Seki, Seiji Uejima, Ryo Yamaoka, Hidemasa Yamaguchi
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Publication number: 20140333877Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: ApplicationFiled: July 24, 2014Publication date: November 13, 2014Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Kouji Noguchi, Kenta Seki
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Patent number: 8823907Abstract: An image display apparatus including an image display panel includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: GrantFiled: August 16, 2013Date of Patent: September 2, 2014Assignee: Japan Display West Inc.Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Kouji Noguchi, Kenta Seki
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Patent number: 8698562Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: GrantFiled: July 19, 2013Date of Patent: April 15, 2014Assignee: Renesas Electronics CorporationInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai
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Publication number: 20130329172Abstract: An image display apparatus including an image display panel includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: ApplicationFiled: August 16, 2013Publication date: December 12, 2013Applicant: Japan Display West Inc.Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Kouji Noguchi, Kenta Seki
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Patent number: 8605238Abstract: An image display apparatus including an image display panel includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: GrantFiled: March 11, 2011Date of Patent: December 10, 2013Assignee: Japan Display West Inc.Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Kouji Noguchi, Kenta Seki
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Publication number: 20130300505Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: ApplicationFiled: July 19, 2013Publication date: November 14, 2013Applicant: Renesas Electronics CorporationInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai
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Publication number: 20130250204Abstract: A display device includes a display section in which a plurality of pixels are arrayed in a matrix, a plurality of scan lines which select pixels, a plurality of signal lines which supply image signals to the selected pixels, and color filters that are arranged so as to correspond to color displays of the pixels. In the device, the display section includes an effective pixel portion and a frame portion that surrounds the effective pixel portion, and the frame portion and a wiring circuit of the effective pixel portion are covered with light-shielding layers, the light-shielding layers being separated from each other at a certain separation location in the display section, and a plurality of color filters having different colors are arranged by being stacked at the separation location.Type: ApplicationFiled: November 21, 2012Publication date: September 26, 2013Applicant: JAPAN DISPLAY WEST, INC.Inventors: Kenta Seki, Seiji Uejima, Ryo Yamaoka, Hidemasa Yamaguchi
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Patent number: 8514022Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: GrantFiled: November 15, 2012Date of Patent: August 20, 2013Assignee: Renesas Electronics CorporationInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai
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Patent number: 8508299Abstract: There is a need to provide a high-frequency power amplifier capable of reducing a talk current and reducing a phase deviation in output. The high-frequency power amplifier includes differently sized first through fifth power amplification transistors and impedance matching circuits for example. The high-frequency power amplifier changes a signal path to be used in accordance with a power specification signal. The high-frequency power amplifier uses a signal path from the first transistor to the second transistor in high power mode. The high-frequency power amplifier uses a signal path from the first transistor to the third transistor in medium power mode. The high-frequency power amplifier uses a signal path from the fourth transistor to the fifth transistor in low power mode. The high-frequency power amplifier is configured so that each of the signal paths includes the same number of stages of power amplification transistors and impedance matching circuits.Type: GrantFiled: February 17, 2012Date of Patent: August 13, 2013Assignee: Renesas Electronics CorporationInventors: Takayuki Kawano, Kenta Seki, Satoshi Sakurai
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Patent number: 8452424Abstract: In a case where a position command path for a control position of a load 5 that is equivalent to a moving object is set by issuing a position command Rc(z), a gain for one of a high-frequency component, a specified frequency, and a specified frequency width is constrained. This means that a resonant frequency can be constrained, and that after the position command Rc(z) arrives at a target position, a position detection signal Y(z) can also arrive at the target position in a set number of steps. It is therefore possible to perform positioning at high speed and with high precision by constraining a resonance mode of a mechanism that includes the moving object, and a feed-forward control can be performed that meets target positioning times that are set for various types of operating patterns.Type: GrantFiled: February 26, 2009Date of Patent: May 28, 2013Assignee: National Univeristy Corporation Nagoya Institute of TechnologyInventors: Noriaki Hirose, Hiromu Hirai, Kenta Seki
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Publication number: 20130069725Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: ApplicationFiled: November 15, 2012Publication date: March 21, 2013Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai
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Patent number: 8330545Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: GrantFiled: March 19, 2012Date of Patent: December 11, 2012Assignee: Renesas Electronics CorporationInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai
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Patent number: 8269748Abstract: A display is provided. The display includes at least one display cell having a display circuit; at least one light receiving cell including a light receiving element; a light emitting section operative to radiate light to the side of a display surface; and at least one transparent plate disposed on the front side in the display relative to a region in which the light emitting section is disposed and regions in which the display cell and the light receiving cell are formed, wherein an antireflection layer is formed on a most face-side surface of the display.Type: GrantFiled: December 8, 2008Date of Patent: September 18, 2012Assignee: Sony CorporationInventors: Daisuke Takama, Kenta Seki
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Publication number: 20120229217Abstract: There is a need to provide a high-frequency power amplifier capable of reducing a talk current and reducing a phase deviation in output. The high-frequency power amplifier includes differently sized first through fifth power amplification transistors and impedance matching circuits for example. The high-frequency power amplifier changes a signal path to be used in accordance with a power specification signal. The high-frequency power amplifier uses a signal path from the first transistor to the second transistor in high power mode. The high-frequency power amplifier uses a signal path from the first transistor to the third transistor in medium power mode. The high-frequency power amplifier uses a signal path from the fourth transistor to the fifth transistor in low power mode. The high-frequency power amplifier is configured so that each of the signal paths includes the same number of stages of power amplification transistors and impedance matching circuits.Type: ApplicationFiled: February 17, 2012Publication date: September 13, 2012Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Takayuki KAWANO, Kenta SEKI, Satoshi SAKURAI
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Publication number: 20120176197Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: ApplicationFiled: March 19, 2012Publication date: July 12, 2012Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai
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Patent number: 8154344Abstract: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.Type: GrantFiled: June 22, 2011Date of Patent: April 10, 2012Assignee: Renesas Electronics CorporationInventors: Masao Kondo, Yoshikuni Matsunaga, Kenta Seki, Satoshi Sakurai