Patents by Inventor Takafumi Kawaguchi

Takafumi Kawaguchi 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).

  • Patent number: 8571704
    Abstract: A substrate transfer apparatus that reduces the quantity of sensors used to detect the position of a substrate so as to simplify the structure and lower costs. The substrate transfer apparatus transfers a substrate (S) between a core chamber (11) and a peripheral chamber (12 or 13). A transfer robot (15) is arranged in the core chamber. The transfer robot includes a hand (17) for carrying the substrate and is capable of extending/drawing and pivoting the hand. A sensor (19) detects an edge surface of the substrate. The sensor is arranged at a position that the edge surface of the substrate passes by when the hand is extended/drawn between the core chamber and the peripheral chamber and that the edge surface of the substrate passes by when the hand is pivoted in the core chamber.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: October 29, 2013
    Assignee: ULVAC, Inc.
    Inventors: Takafumi Kawaguchi, Kenji Ago, Toshio Koike
  • Patent number: 8366375
    Abstract: There are provided a rotation introduction mechanism which transmits a rotating motion on the atmosphere side into vacuum, is arranged simply, has a low sliding resistance, and has a long life, a substrate transfer apparatus, a substrate transfer apparatus having a small pivot radius and generating a smaller amount of dusts, and a vacuum processing apparatus. A lubricant holding member is attached to a vacuum seal mechanism. The substrate transfer apparatus is arranged such that a first link mechanism includes a first arm and a fourth arm, a second link mechanism includes a second arm and a third arm, the first arm is fixedly attached to a first drive shaft, the first arm is fixedly attached to a second drive shaft, the third arm is rotatably attached to the first drive shaft, and the fourth arm is rotatably attached to the second drive shaft. The vacuum processing apparatus includes the substrate transfer apparatus.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 5, 2013
    Assignee: ULVAC, Inc.
    Inventors: Kazuhiro Musha, Hirofumi Minami, Takafumi Kawaguchi
  • Patent number: 8134675
    Abstract: A liquid crystal display device includes at least: a liquid crystal display panel; a light source provided on a back side of the liquid crystal display panel; and a frame accommodating the liquid crystal display panel and the light source and having an upper opening and a lower opening in an upper portion and a lower portion of the frame, respectively. The liquid crystal display panel includes a TFT substrate provided on a side of the light source, a CF substrate, a liquid crystal layer interposed between the TFT substrate and the CF substrate, a thin film driving circuit formed on the TFT substrate for driving the liquid crystal layer, and a front polarizing plate provided on a front surface of the CF substrate and having an overhanging portion overhanging from a periphery of the CF substrate. The front polarizing plate covers the upper opening of the frame and the overhanging portion is fixed to an upper end surface of the frame.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takafumi Kawaguchi, Takahiro Yamamoto
  • Publication number: 20100265425
    Abstract: A liquid crystal display device includes at least: a liquid crystal display panel; a light source provided on a back side of the liquid crystal display panel; and a frame accommodating the liquid crystal display panel and the light source and having an upper opening and a lower opening in an upper portion and a lower portion of the frame, respectively. The liquid crystal display panel includes a TFT substrate provided on a side of the light source, a CF substrate, a liquid crystal layer interposed between the TFT substrate and the CF substrate, a thin film driving circuit formed on the TFT substrate for driving the liquid crystal layer, and a front polarizing plate provided on a front surface of the CF substrate and having an overhanging portion overhanging from a periphery of the CF substrate. The front polarizing plate covers the upper opening of the frame and the overhanging portion is fixed to an upper end surface of the frame.
    Type: Application
    Filed: May 1, 2006
    Publication date: October 21, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takafumi Kawaguchi, Takahiro Yamamoto
  • Publication number: 20100135751
    Abstract: There are provided a rotation introduction mechanism which transmits a rotating motion on the atmosphere side into vacuum, is arranged simply, has a low sliding resistance, and has a long life, a substrate transfer apparatus, a substrate transfer apparatus having a small pivot radius and generating a smaller amount of dusts, and a vacuum processing apparatus. A lubricant holding member is attached to a vacuum seal mechanism. The substrate transfer apparatus is arranged such that a first link mechanism includes a first arm and a fourth arm, a second link mechanism includes a second arm and a third arm, the first arm is fixedly attached to a first drive shaft, the first arm is fixedly attached to a second drive shaft, the third arm is rotatably attached to the first drive shaft, and the fourth arm is rotatably attached to the second drive shaft. The vacuum processing apparatus includes the substrate transfer apparatus.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 3, 2010
    Inventors: Kazuhiro Musha, Hirofumi Minami, Takafumi Kawaguchi
  • Patent number: 7719506
    Abstract: A display device includes a display panel including a bus line section; and at least one driver for driving the bus line section included in the display panel. Each of the at least one driver includes an amplifier for generating a non-driving signal based on an input signal, the non-driving signal not contributing to driving of the bus line section.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: May 18, 2010
    Inventors: Taketoshi Nakano, Takafumi Kawaguchi, Toshihiro Yanagi, Keishi Nishikubo
  • Publication number: 20100121487
    Abstract: A substrate transfer apparatus that reduces the quantity of sensors used to detect the position of a substrate so as to simplify the structure and lower costs. The substrate transfer apparatus transfers a substrate (S) between a core chamber (11) and a peripheral chamber (12 or 13). A transfer robot (15) is arranged in the core chamber. The transfer robot includes a hand (17) for carrying the substrate and is capable of extending/drawing and pivoting the hand. A sensor (19) detects an edge surface of the substrate. The sensor is arranged at a position that the edge surface of the substrate passes by when the hand is extended/drawn between the core chamber and the peripheral chamber and that the edge surface of the substrate passes by when the hand is pivoted in the core chamber.
    Type: Application
    Filed: February 27, 2008
    Publication date: May 13, 2010
    Applicant: ULVAC, INC.
    Inventors: Takafumi Kawaguchi, Kenji Ago, Toshio Koike
  • Publication number: 20100109220
    Abstract: Object To provide a substrate assembly apparatus capable of simplifying a structure of the apparatus and performing appropriate detachment of a substrate constantly. Solving Means A substrate assembly apparatus according to the present invention includes a support base and a holding mechanism. The support base is for supporting a lower substrate. The holding mechanism includes a holding surface and a functional element. The holding surface is for holding an upper surface of an upper substrate. The functional element is provided on the holding surface and has a holding force variable in accordance with a magnitude of a voltage. The holding mechanism causes a lower surface of the upper substrate to face an upper surface of the lower substrate supported by the support base. With this structure, it becomes possible to electrically control the holding force with respect to the substrate and simplify the structure of the holding mechanism.
    Type: Application
    Filed: April 15, 2008
    Publication date: May 6, 2010
    Applicant: ULVAC, INC.
    Inventors: Kazuhiro Musha, Hirofumi Minami, Takafumi Kawaguchi
  • Patent number: 7645112
    Abstract: A transport apparatus which can properly transmit a rotary driving force of a rotating motor to a transport arm and can correctly detect an angle of rotation of a rotary driving shaft, thereby transporting an object to be transported in a transport unit to a correct position. The transport apparatus includes: a housing having an airtight structure; first to third driving shafts that are provided in the housing to be independently rotatable around a predetermined coaxial rotary shaft; permanent magnets arranged at predetermined positions of the first to third driving shafts, respectively; and electromagnetic coils provided in the housing to correspond to the respective permanent magnets. Driving currents are supplied to the electromagnetic coils based on predetermined information, so as to move the first to third driving shafts. The object to be transported is transported by first and second linkages fixed to the first to third driving shafts.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: January 12, 2010
    Assignee: Ulvac Inc.
    Inventors: Hirofumi Minami, Kenji Ago, Takafumi Kawaguchi, Toshio Koike, Junpei Yuyama
  • Patent number: 7572093
    Abstract: A transport apparatus includes first and second linkages. The first linkage includes first and third arms that can be rotated around a coaxial rotary shaft of first through third driving shafts coaxially arranged, and transports a first carrier. The second linkage includes a second arm and the third arm that can be rotated around the coaxial rotary shaft of the first through third driving shafts, and transports a second carrier. The first and second linkages are arranged to allow the first and second carriers to move beyond the coaxial rotary shaft of the first through third driving shafts without interfering with each other.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: August 11, 2009
    Assignee: ULVAC Inc.
    Inventors: Hirofumi Minami, Kenji Ago, Takafumi Kawaguchi, Toshio Koike, Junpei Yuyama
  • Patent number: 7369124
    Abstract: A liquid crystal panel (500) is provided with a connection switching circuit (502) for connecting a video signal line driving circuit (300) to a plurality of video signal lines (Ls). The connection switching circuit (502) includes analog switches (SWi) that correspond to the video signal lines (Ls) and one side of each of the analog switches (SWi) is connected to one of the video signal lines (Ls). The video signal lines (Ls) are grouped together into groups of two video signal lines (Ls) that are spaced apart by one video signal line. The groups of video signal lines (Ls) respectively correspond to output terminals (TSj) of the video signal line driving circuit (300). The other sides of the analog switches (SWi) connected to the video signal lines (Ls) of the same group are connected to one another, and connected to one output terminal (TSj).
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: May 6, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Taketoshi Nakano, Ken Inada, Takafumi Kawaguchi
  • Patent number: 7295178
    Abstract: A display apparatus of the present invention is provided with (i) a second memory for storing therein data of one frame for a whole display area of a display section, (ii) a first memory, provided in addition of the second memory, for storing therein data of one frame for a partial display area, (iii) a control section for causing the data respectively read out from the memories, to be respectively written in the display areas to which the data correspond to, and casing the partial display area to move to an predetermined position within a display screen of the display section, when a predetermined time lapses. The display apparatus has an improved display quality by moving the partial display area without affecting an image displayed in an area other than the partial display area.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: November 13, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Taketoshi Nakano, Toshihiro Yanagi, Takafumi Kawaguchi
  • Patent number: 7113180
    Abstract: A plurality of column electrode driving circuits is used in a matrix type display device including a plurality of row electrode driving circuits each for driving a plurality of row electrodes and the plurality of column electrode driving circuits each for driving a plurality of column electrodes.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: September 26, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Taketoshi Nakano, Takafumi Kawaguchi, Toshihiro Yanagi, Keishi Nishikubo
  • Patent number: 7112594
    Abstract: Compounds represented by the following general formula (I) wherein ring A is benzene, cyclohexane, pyridine, piperidine, a derivative thereof, imidazole, a derivative thereof, etc.; the ring B represents benzene, cyclohexane, pyrrole or a derivative thereof, furan, thiophene, etc.; R1, R2 and R3 represent each hydrogen, alkyl, halogen, hydroxyl, alkoxy, etc.; W represents hydrogen, alkyl or hydroxycarbonylalkyl; X represents halogen, cyano, nitro, etc.; X? represents hydrogen, halogen, etc.; and Y represents alkyl, hydroxyalkyl, hydroxycarbonylalkyl, aminoalkyl, etc.; salt thereof, and drugs comprising these compounds. Because of having an exellent effect of inhibiting activated lymphocyte proliferation, these compounds are usefull as preventives or remedies for various autoimmune diseases.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: September 26, 2006
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Hiroyuki Ushio, Youichiro Naito, Naoki Sugiyama, Takafumi Kawaguchi, Makio Ohtsuki, Kenji Chiba
  • Patent number: 7098901
    Abstract: A display device includes a display panel including a bus line section; and at least one driver for driving the bus line section included in the display panel. Each of the at least one driver includes an amplifier for generating a non-driving signal based on an input signal, the non-driving signal not contributing to driving of the bus line section.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: August 29, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Taketoshi Nakano, Takafumi Kawaguchi, Toshihiro Yanagi, Keishi Nishikubo
  • Publication number: 20060187159
    Abstract: A display device includes a display panel including a bus line section; and at least one driver for driving the bus line section included in the display panel. Each of the at least one driver includes an amplifier for generating a non-driving signal based on an input signal, the non-driving signal not contributing to driving of the bus line section.
    Type: Application
    Filed: April 5, 2006
    Publication date: August 24, 2006
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Taketoshi Nakano, Takafumi Kawaguchi, Toshihiro Yanagi, Keishi Nishikubo
  • Patent number: 7015218
    Abstract: The present invention relates to a compound of the formula wherein R1 is substituted aryl, heteroaryl and the like, R2 and R3 are hydrogen, alkyl, halogen, hydroxyl group and the like, Q is N, CH and the like, W is hydrogen, alkyl, hydroxycarbonylalkyl and the like, X is halogen, cyano, nitro, amino and the like, X? is hydrogen, halogen, cyano, nitro, and Y is alkyl, hydroxyl group, alkoxy, mercapto and the like and a salt thereof, and a medicine containing the said compound. The compound of the present invention shows a superior inhibitory effect on activated lymphocytes proliferation and is useful as an agent for the prophylaxis or treatment of various autoimmune diseases.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: March 21, 2006
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Hiroyuki Ushio, Seigo Ishibuchi, Youichiro Naito, Naoki Sugiyama, Takafumi Kawaguchi, Kenji Chiba, Makio Ohtsuki, Yoichi Naka
  • Publication number: 20050286993
    Abstract: A transport apparatus which can properly transmit a rotary driving force of a rotating motor to a transport arm and can correctly detect an angle of rotation of a rotary driving shaft, thereby transporting an object to be transported in a transport unit to a correct position. The transport apparatus includes: a housing having an airtight structure; first to third driving shafts that are provided in the housing to be independently rotatable around a predetermined coaxial rotary shaft; permanent magnets arranged at predetermined positions of the first to third driving shafts, respectively; and electromagnetic coils provided in the housing to correspond to the respective permanent magnets. Driving currents are supplied to the electromagnetic coils based on predetermined information, so as to move the first to third driving shafts. The object to be transported is transported by first and second linkages fixed to the first to third driving shafts.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 29, 2005
    Applicant: ULVAC, INC.
    Inventors: Hirofumi Minami, Kenji Ago, Takafumi Kawaguchi, Toshio Koike, Junpei Yuyama
  • Patent number: 6980186
    Abstract: A liquid crystal panel having pixel-forming portions that are assigned dispersedly to two mutually adjacent rows of pixels sandwiching the scanning signal line Lg from above and below, in a horizontally periodical pattern having a cycle of “up down, up” or “down, up, down” as to which of the up row and the down row is selected in the assignment of three pixel electrodes. This staggered structure provides a quasi dot inversion driving method while reducing vertical shadow when displaying e.g. the “checker back”.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: December 27, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Taketoshi Nakano, Asahi Yamato, Takafumi Kawaguchi
  • Publication number: 20050232744
    Abstract: A transport apparatus includes first and second linkages. The first linkage includes first and third arms that can be rotated around a coaxial rotary shaft of first through third driving shafts coaxially arranged, and transports a first carrier. The second linkage includes a second arm and the third arm that can be rotated around the coaxial rotary shaft of the first through third driving shafts, and transports a second carrier. The first and second linkages are arranged to allow the first and second carriers to move beyond the coaxial rotary shaft of the first through third driving shafts without interfering with each other.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 20, 2005
    Applicant: ULVAC, INC.
    Inventors: Hirofumi Minami, Kenji Ago, Takafumi Kawaguchi, Toshio Koike, Junpei Yuyama