Patents by Inventor Shinya Yamakawa
Shinya Yamakawa 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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Publication number: 20070002227Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: August 22, 2006Publication date: January 4, 2007Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 7151581Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: August 4, 2005Date of Patent: December 19, 2006Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 7126157Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: GrantFiled: August 19, 2004Date of Patent: October 24, 2006Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Publication number: 20060231840Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: ApplicationFiled: June 8, 2006Publication date: October 19, 2006Applicant: Sharp Kabushiki KaishaInventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Patent number: 6999680Abstract: A WDM transmission system including a plurality of WDM optical network and a central controller communicably connected to the plural WDM optical network via a plurality of monitor/control lines respectively, the central controller includes variation factor monitoring means for monitoring one or more variation factors of preemphasis on each WDM optical network and preemphasis controlling means for controlling a status of the preemphasis by adjusting the setting for the preemphasis performed on each WDM network via respective one of monitor/control lines. Therefore, preemphasis performed each of the plural WDM optical network can be automatically executed without boosting costs and loads on elements of each WDM optical network. Stabilized transmission of a WDM signal can be performed in each of the plural WDM optical network with ease without manual setting.Type: GrantFiled: March 5, 2002Date of Patent: February 14, 2006Assignee: Fujitsu LimitedInventor: Shinya Yamakawa
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Publication number: 20050270455Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: August 4, 2005Publication date: December 8, 2005Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 6950159Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: August 20, 2004Date of Patent: September 27, 2005Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 6933988Abstract: An active matrix substrate includes: a plurality of scan lines and signal lines on a transparent insulative substrate which cross each other; a plurality of switching elements formed at predetermined intersections of the scan lines and signal lines, the switching elements being electrically connected to the scan lines and signal lines; a connection electrode electrically connected to a corresponding one of the switching elements; an interlayer insulating film formed over the scan lines, the signal lines, the connection electrode, and the switching elements; a contact hole formed in the interlayer insulating film over the connection electrode; and a pixel electrode at each intersection, the pixel electrode being electrically connected to the connection electrode through the contact hole, wherein each of the scan lines and signal lines includes an opaque electrode layer; and the contact hole is formed such that a portion of the contact hole exists outside the connection electrode.Type: GrantFiled: March 8, 2002Date of Patent: August 23, 2005Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Ohgami, Shinya Yamakawa
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Publication number: 20050023557Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: ApplicationFiled: August 19, 2004Publication date: February 3, 2005Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Publication number: 20050018118Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: August 20, 2004Publication date: January 27, 2005Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 6819379Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: August 13, 2001Date of Patent: November 16, 2004Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 6797982Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: GrantFiled: August 24, 2001Date of Patent: September 28, 2004Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Publication number: 20030081282Abstract: A WDM transmission system including a plurality of WDM optical network and a central controller communicably connected to the plural WDM optical network via a plurality of monitor/control lines respectively, the central controller includes variation factor monitoring means for monitoring one or more variation factors of preemphasis on each WDM optical network and preemphasis controlling means for controlling a status of the preemphasis by adjusting the setting for the preemphasis performed on each WDM network via respective one of monitor/control lines. Therefore, preemphasis performed each of the plural WDM optical network can be automatically executed without boosting costs and loads on elements of each WDM optical network. Stabilized transmission of a WDM signal can be performed in each of the plural WDM optical network with ease without manual setting.Type: ApplicationFiled: March 5, 2002Publication date: May 1, 2003Applicant: FUJITSU LIMITEDInventor: Shinya Yamakawa
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Publication number: 20020127857Abstract: An active matrix substrate includes: a plurality of scan lines and signal lines on a transparent insulative substrate which cross each other; a plurality of switching elements formed at predetermined intersections of the scan lines and signal lines, the switching elements being electrically connected to the scan lines and signal lines: a connection electrode electrically connected to a corresponding one of the switching elements; an interlayer insulating film formed over the scan lines, the signal lines, the connection electrode, and the switching elements: a contact hole formed in the interlayer insulating film over the connection electrode: and a pixel electrode at each intersection, the pixel electrode being electrically connected to the connection electrode through the contact hole, wherein each of the scan lines and signal lines includes an opaque electrode layer; and the contact hole is formed such that a portion of the contact hole exists outside the connection electrode.Type: ApplicationFiled: March 8, 2002Publication date: September 12, 2002Inventors: Hiroyuki Ohgami, Shinya Yamakawa
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Publication number: 20020079501Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: ApplicationFiled: August 24, 2001Publication date: June 27, 2002Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Patent number: 6411348Abstract: An active matrix is furnished with an insulating substrate; a plurality of scanning lines and signal lines provided on the insulating substrate in a matrix pattern; pixel electrodes provided in areas enclosed by the scanning lines and signal lines, respectively; switching elements electrically connected to the scanning lines, signal lines, and pixel electrodes, respectively; a resistance control element for electrically connecting two lines selected arbitrary from the scanning lines and signal lines while controlling its own resistance value in response to a voltage applied thereto. According to the above arrangement, it has become possible to increase a margin of the active matrix substrate for the static electricity and improve the production yield without increasing the number of the producing steps.Type: GrantFiled: June 26, 1997Date of Patent: June 25, 2002Assignee: Sharp Kabushiki KaishaInventors: Katsuhiro Kawai, Shinya Yamakawa, Masaya Okamoto, Takayuki Shimada, Mikio Katayama
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Publication number: 20010055082Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: August 13, 2001Publication date: December 27, 2001Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Publication number: 20010045996Abstract: An active matrix is furnished with an insulating substrate; a plurality of scanning lines and signal lines provided on the insulating substrate in a matrix pattern; pixel electrodes provided in areas enclosed by the scanning lines and signal lines, respectively; switching elements electrically connected to the scanning lines, signal lines, and pixel electrodes, respectively; a resistance control element for electrically connecting two lines selected arbitrary from the scanning lines and signal lines while controlling its own resistance value in response to a voltage applied thereto. According to the above arrangement, it has become possible to increase a margin of the active matrix substrate for the static electricity and improve the production yield without increasing the number of the producing steps.Type: ApplicationFiled: June 26, 1997Publication date: November 29, 2001Inventors: KATSUHIRO KAWAI, SHINYA YAMAKAWA, MASAYA OKAMOTO, TAKAYUKI SHIMADA, MIKIO KATAYAMA
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Patent number: 6295109Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: December 28, 1998Date of Patent: September 25, 2001Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 6184960Abstract: A method for producing a substrate of a reflection type liquid crystal display device is provided. The method includes the steps of: forming the input portion for inputting a signal from outside and the connecting electrode on the substrate on which the reflective electrode is formed; forming a protective film on the connecting electrode; forming an interlayer insulator under the condition that the protective film on the connecting electrode is exposed; patterning the interlayer insulator; forming a reflective electrode film on the interlayer insulator; patterning the reflective electrode film to form the reflective electrode; and removing the protective film on the connecting electrode to expose the connecting electrode.Type: GrantFiled: December 30, 1998Date of Patent: February 6, 2001Assignee: Sharp Kabushiki KaishaInventors: Yutaka Sawayama, Koji Taniguchi, Shinya Yamakawa, Atsushi Ban, Yoshihiro Okada, Atsuhito Murai, Takayuki Shimada