Patents by Inventor Yoshiaki Sakurai

Yoshiaki Sakurai 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: 9086590
    Abstract: A liquid crystal display device of the invention includes: a rectangular polarizer attached to a liquid crystal display panel; a frame-shaped frame having four sides; a first bonding layer arranged only at a position biased toward any of edges on an upper surface of the polarizer, and bonding the polarizer to the liquid crystal display panel; and a second bonding layer arranged only at a position biased toward any of edges on a lower surface of the polarizer, and bonding the frame to the polarizer.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 21, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Yoshiaki Sakurai, Eiji Oohira
  • Publication number: 20140125912
    Abstract: A liquid crystal display device of the invention includes: a rectangular polarizer attached to a liquid crystal display panel; a frame-shaped frame having four sides; a first bonding layer arranged only at a position biased toward any of edges on an upper surface of the polarizer, and bonding the polarizer to the liquid crystal display panel; and a second bonding layer arranged only at a position biased toward any of edges on a lower surface of the polarizer, and bonding the frame to the polarizer.
    Type: Application
    Filed: October 18, 2013
    Publication date: May 8, 2014
    Applicant: Japan Display Inc.
    Inventors: Yoshiaki SAKURAI, Eiji OOHIRA
  • Patent number: 8035780
    Abstract: A liquid crystal display device which can prevent the generation of bubbles on an adhesive surface between a liquid crystal display panel and a face plate which protects the liquid crystal display panel is provided. In mounting the face plate on an upper polarizer of the liquid crystal display panel by way of an adhesive material, a picture frame is formed on a periphery of the face plate for enhancing design property. Although the picture frame is formed by printing black ink, a quantity of Si present in the black ink is set to not more than 0.7% and not less than 0.01% thus preventing the generation of bubbles attributed to defective adhesion between the face plate and the adhesive material.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: October 11, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hidenao Kubota, Yoshiaki Nakamura, Hiroaki Miwa, Shinji Tanabe, Yoshiaki Sakurai
  • Publication number: 20110211136
    Abstract: A liquid crystal display device which can prevent the generation of bubbles on an adhesive surface between a liquid crystal display panel and a face plate which protects the liquid crystal display panel is provided. In mounting the face plate on an upper polarizer of the liquid crystal display panel by way of an adhesive material, a picture frame is formed on a periphery of the face plate for enhancing design property. Although the picture frame is formed by printing black ink, a quantity of Si present in the black ink is set to not more than 0.7% and not less than 0.01% thus preventing the generation of bubbles attributed to defective adhesion between the face plate and the adhesive material.
    Type: Application
    Filed: May 9, 2011
    Publication date: September 1, 2011
    Inventors: Hidenao Kubota, Yoshiaki Nakamura, Hiroaki Miwa, Shinji Tanabe, Yoshiaki Sakurai
  • Patent number: 8009252
    Abstract: A liquid crystal display device of the present invention includes: a liquid crystal layer that is held between first and second substrates; an upper polarization plate that is disposed on an outer side of the first substrate; and a protection plate that is fixed to and disposed on an outer side of the upper polarization plate, wherein the upper polarization plate has a structure where an outer peripheral portion of the upper polarization plate is not fixed to the protection plate.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: August 30, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Masayuki Yanagihara, Yoshiaki Sakurai, Masato Sawahata
  • Patent number: 7969538
    Abstract: A liquid crystal display device which can prevent the generation of bubbles on an adhesive surface between a liquid crystal display panel and a face plate which protects the liquid crystal display panel is provided. In mounting the face plate on an upper polarizer of the liquid crystal display panel by way of an adhesive material, a picture frame is formed on a periphery of the face plate for enhancing design property. Although the picture frame is formed by printing black ink, a quantity of Si present in the black ink is set to not more than 0.7% and not less than 0.01% thus preventing the generation of bubbles attributed to defective adhesion between the face plate and the adhesive material.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: June 28, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hidenao Kubota, Yoshiaki Nakamura, Hiroaki Miwa, Shinji Tanabe, Yoshiaki Sakurai
  • Publication number: 20090225258
    Abstract: A liquid crystal display device of the present invention includes: a liquid crystal layer that is held between first and second substrates; an upper polarization plate that is disposed on an outer side of the first substrate; and a protection plate that is fixed to and disposed on an outer side of the upper polarization plate, wherein the upper polarization plate has a structure where an outer peripheral portion of the upper polarization plate is not fixed to the protection plate.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Inventors: Masayuki Yanagihara, Yoshiaki Sakurai, Masato Sawahata
  • Publication number: 20090190071
    Abstract: A liquid crystal display device which can prevent the generation of bubbles on an adhesive surface between a liquid crystal display panel and a face plate which protects the liquid crystal display panel is provided. In mounting the face plate on an upper polarizer of the liquid crystal display panel by way of an adhesive material, a picture frame is formed on a periphery of the face plate for enhancing design property. Although the picture frame is formed by printing black ink, a quantity of Si present in the black ink is set to not more than 0.7% and not less than 0.01% thus preventing the generation of bubbles attributed to defective adhesion between the face plate and the adhesive material.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Inventors: Hidenao Kubota, Yoshiaki Nakamura, Hiroaki Miwa, Shinji Tanabe, Yoshiaki Sakurai
  • Publication number: 20030222838
    Abstract: The present invention realizes a liquid crystal display device which forms a miniaturized low dielectric strength drive circuit on a substrate on which a display part is also formed. Apart from a drive circuit which supplies gray scale voltages to pixels, a circuit which lowers the pixel potential and realizes alternating driving is provided. Signals of positive polarity are written in a pixel electrode and, after writing, the potential of the pixel electrode is lowered using the capacitance connected to the pixel electrode. Further, between the circuit which lowers the pixel potential and a display region, a pull-up circuit for assisting off-switching is provided for reducing rounding of waveforms of scanning signals is provided.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 4, 2003
    Inventors: Haruhisa Iida, Iwao Takemoto, Hideki Nakagawa, Yoshiaki Sakurai, Shigeo Adachi
  • Patent number: 6105417
    Abstract: Gas sensor materials composed of carbon mixture or metal-containing carbon mixture obtained as evaporated matter by arc discharge which occurs by passing an alternating current or a direct current with electric current density of 0.8 to 3.5 A/mm.sup.2 on discharge surfaces of carbon electrodes or metal-containing carbon electrodes in an inert gas under a pressure of 0.1 to 600 torr.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: August 22, 2000
    Assignees: Osaka Prefecture, Daido Hoxan Inc.
    Inventors: Toshikazu Nosaka, Yoshiaki Sakurai, Kazuki Natsukawa, Tsutomu Yotsuya, Shunsaku Kawabata, Katsumi Nishida, Kazuhiro Nishikawa, Kiyohiro Mori, Hiromi Kiyama, Yoshinori Omori
  • Patent number: 5398201
    Abstract: A circuit technique suitable to attain a high speed of a memory which is constructed in a manner such that memory cells include a field effect transistor and peripheral circuits include a bipolar transistor and a field effect transistor. According to the invention, a bipolar transistor whose collector is connected to a differential amplifier and which supplies a current to the differential amplifier in accordance with a signal which is inputted to a base or an emitter is added, and a bipolar transistor to supply a current only when writing to bit lines is connected. According to the invention, a high speed of the access time when information is read out by switching the selection bit line is accomplished. Further, the charge/discharge time of the bit line when information is written is reduced and a high speed of the writing time can be also accomplished.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: March 14, 1995
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Hiroaki Nambu, Noriyuki Homma, Kunihiko Yamaguchi, Hisayuki Higuchi, Kazuo Kanetani, Youji Idei, Ken'ichi Ohata, Yoshiaki Sakurai, Masanori Odaka, Goro Kitsukawa
  • Patent number: 5255225
    Abstract: A semiconductor integrated circuit device including a level conversion circuit in which the simplifying of the circuit and the increasing of the speed of operation have been attained is provided.A pair of complementary output signals amplified to a required signal level by a current switch circuit including differential transistors which receive an input signal and a reference voltage are inputted into a pair of emitter follower circuits. An emitter follower output transistor is driven by an output signal from one emitter follower circuit, while an N-channel MOSFET provided between the output transistor and a current source used as a load is driven by an output signal from the other emitter follower circuit, to obtain a level-amplified output signal from an emitter of the output transistor.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: October 19, 1993
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Hiroaki Nambu, Noriyuki Homma, Kunihiko Yamaguchi, Kazuo Kanetani, Hisayuki Higuchi, Youji Idei, Kenichi Ohata, Yoshiaki Sakurai, Masanori Odaka, Goro Kitsukawa, Nobuo Tamba, Masayuki Ohayashi, Toshiro Hiramoto, Kayoko Saito
  • Patent number: 5163022
    Abstract: The disclosure includes feeding a current I.sub.R to only BIT lines selected, or feeding current I.sub.R transiently to only the BIT lines switched from unselected to selected states; and a sense amplifier for detecting the difference between the currents flowing in selected BIT lines to read out stored information, wherein current I.sub.R and cell current I.sub.cell have a relation of I.sub.R >I.sub.cell. The BiC MOS memory has high speed, low power and high integration density. Diodes are provided between the memory cell and the BIT lines.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: November 10, 1992
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Noriyuki Homma, Hiroaki Nambu, Kunihiko Yamaguchi, Tohru Nakamura, Youji Idei, Kazuo Kanetani, Kenichi Ohhata, Yoshiaki Sakurai, Hisayuki Higuchi
  • Patent number: 5086414
    Abstract: A semiconductor circuit having a plurality of circuit blocks, each having latch circuits each one thereof being controlled by an internally provided clock signal for preventing malfunction of the circuit. Each circuit is provided with the latch function so that the cycle time is made shorter than the access time. Moreover, the latch means are driven in such a manner that the adjoining ones are prevented from being put to through-state simultaneously, whereby malfunction is prevented.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: February 4, 1992
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Hiroaki Nambu, Noriyuki Homma, Kunihiko Yamaguchi, Kazuo Kanetani, Youji Idei, Kenichi Ohhata, Yoshiaki Sakurai, Jun Etoh
  • Patent number: 4986666
    Abstract: A semiconductor memory device capable of operating at high speeds, and a sense circuit and a decoder circuit that can be suitably used for the memory device. A latch function is imparted to at least either one of the decoder circuit or the sense circuit in the semiconductor memory device.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: January 22, 1991
    Assignees: Hitachi Device Engineering Co., Ltd., Hitachi Ltd.
    Inventors: Noriyuki Homma, Hisayuki Higuchi, Yoji Idei, Hiroaki Nambu, Yoshiaki Sakurai
  • Patent number: 4034998
    Abstract: A mounting apparatus for releasably mounting attachments on a vehicle body, the apparatus comprising a bracket for securing to the vehicle body and a connecting member for securing to an attachment for the vehicle, the bracket comprising two vertically spaced projections each having an upwardly facing notch, and the connecting member having a respective pin for engaging with the notch of each projection to support the connecting member on the bracket and a locking member movable transversely of the upper projection and engageable with a contact surface formed on an underside of the upper projection to lock the respective pin in the upper projection.
    Type: Grant
    Filed: October 29, 1975
    Date of Patent: July 12, 1977
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Katsuhiko Iijima, Yoshiaki Sakurai