Patents by Inventor Yoshifumi Saeki

Yoshifumi Saeki 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: 10456710
    Abstract: According to one embodiment, the liquid crystal material processing device includes a syringe containing contents composed of a liquid crystal material and the like, having a distal end portion constituting a first discharge pipe, an agitation mechanism agitating the contents of the syringe, a vacuum chamber having a second discharge pipe penetrating the bottom to connect to the first discharge pipe of the syringe. The agitation mechanism agitates the liquid crystal material and the pure water in the syringe, and purifies the liquid crystal material by causing water-soluble impurities to transfer to the pure water. The agitation mechanism agitates the liquid crystal material remaining in the syringe after the water layer has been discharged. The evacuation mechanism evacuates the vacuum chamber and causes the liquid crystal material to be degassed while the remaining liquid crystal material is agitated.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 29, 2019
    Assignee: Japan Display Inc.
    Inventors: Midori Tsukane, Daiichi Suzuki, Yoshifumi Saeki
  • Patent number: 10031382
    Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel which includes a pixel electrode, a liquid crystal layer and an alignment film, and a driver. The driver drives the pixel electrode at a drive frequency of 1 to 20 Hz. The alignment film has a resistivity of 5×1014 ?·cm or more.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 24, 2018
    Assignee: Japan Display Inc.
    Inventors: Daiichi Suzuki, Yoshifumi Saeki, Yukio Tanaka, Noboru Kunimatsu, Hidehiro Sonoda, Masahiro Kosuge
  • Publication number: 20170184929
    Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel which includes a pixel electrode, a liquid crystal layer and an alignment film, and a driver. The driver drives the pixel electrode at a drive frequency of 1 to 20 Hz. The alignment film has a resistivity of 5×1014 ?·cm or more.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 29, 2017
    Applicant: Japan Display Inc.
    Inventors: Daiichi SUZUKI, Yoshifumi Saeki, Yukio Tanaka, Noboru Kunimatsu, Hidehiro Sonoda, Masahiro Kosuge
  • Publication number: 20170184899
    Abstract: The first substrate has a first projection in which a first part extending along a side of the first substrate in the peripheral part of the first substrate and a second part extending from the first part towards an edge of the first substrate are formed. Width of a cross section of the first projection is smaller on its tip end's side than on the first substrate's side. The second substrate has a second projection extending along a side of the second substrate in the peripheral part of the second substrate. Width of a cross section of the second projection is smaller on its tip end's side than on the second substrate's side. The second part of the first projection faces the second projection. The seal member exists between the first projection and the second projection.
    Type: Application
    Filed: November 7, 2016
    Publication date: June 29, 2017
    Inventor: Yoshifumi SAEKI
  • Publication number: 20170014732
    Abstract: According to one embodiment, the liquid crystal material processing device includes a syringe containing contents composed of a liquid crystal material and the like, having a distal end portion constituting a first discharge pipe, an agitation mechanism agitating the contents of the syringe, a vacuum chamber having a second discharge pipe penetrating the bottom to connect to the first discharge pipe of the syringe. The agitation mechanism agitates the liquid crystal material and the pure water in the syringe, and purifies the liquid crystal material by causing water-soluble impurities to transfer to the pure water. The agitation mechanism agitates the liquid crystal material remaining in the syringe after the water layer has been discharged. The evacuation mechanism evacuates the vacuum chamber and causes the liquid crystal material to be degassed while the remaining liquid crystal material is agitated.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 19, 2017
    Applicant: Japan Display Inc.
    Inventors: Midori TSUKANE, Daiichi SUZUKI, Yoshifumi SAEKI
  • Patent number: 9507207
    Abstract: When an alignment film is applied to the whole surface of a substrate, adhesion intensity between a sealing material and the alignment film is further deteriorated. A display device includes an array substrate having a first alignment film, a counter substrate having a second alignment film, a liquid crystal layer in contact with the first alignment film and the second alignment film, and a sealing material for bonding the first alignment film and the second alignment film together, wherein the sealing material is provided with a portion adapted to increase the area of the adhered portion.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 29, 2016
    Assignee: Japan Display Inc.
    Inventors: Yoshifumi Saeki, Noriyoshi Kanda
  • Publication number: 20150168764
    Abstract: When an alignment film is applied to the whole surface of a substrate, adhesion intensity between a sealing material and the alignment film is further deteriorated. A display device includes an array substrate having a first alignment film, a counter substrate having a second alignment film, a liquid crystal layer in contact with the first alignment film and the second alignment film, and a sealing material for bonding the first alignment film and the second alignment film together, wherein the sealing material is provided with a portion adapted to increase the area of the adhered portion.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 18, 2015
    Inventors: Yoshifumi SAEKI, Noriyoshi KANDA
  • Patent number: 4962529
    Abstract: A scrambling method for TV pictures avoids picture deterioration by level compressing only selected horizontal flyback portions of the video signal to effect scrambling. A key signal is superposed on selected horizontal synch signals and, when removed at the decoder, enables level expansion of those horizontal flyback portions compressed in order to allow the TV receiver to effect synchronization. Data signals for enabling or disabling reception of particular programming such as paid programs may be superimposed on other selected horizontal synch signals.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: October 9, 1990
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshifumi Saeki, Shigeru Watanabe
  • Patent number: 4794643
    Abstract: A scrambling method for TV pictures avoids deterioration of the reproduced picture by level compressing only selected horizontal flyback portions according to a randomly selected pattern to prevent synchronization at the receiver. Key signals are added repetitively to a plurality of horizontal synch signals in one frame so as to enable descrambling of the picture at the decoder, even if noise or data error interferes with one or more of the signals.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: December 27, 1988
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshifumi Saeki, Shigeru Watanabe, Ryuichi Todoroki
  • Patent number: 4591951
    Abstract: An electronic component contained in a metal case is attached with an insulation mold at a sealing part and lead wires of the electronic component element are passing through holes on the insulator base, and the end parts of the lead wires are bent in recesses on the insulator base, thereby constituting surface mounting type electronic component.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: May 27, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shigeyoshi Iwamoto, Yoshifumi Saeki, Takashi Kuribayashi, Shinichiro Ishitsuka, Nobukuni Ogino
  • Patent number: 4455570
    Abstract: In a cable television system wherein a polling channel is provided for two-way communications between the center and the terminal units, video data signals are transmitted on request from the center to the terminal units during an otherwise idle period in said polling channel.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: June 19, 1984
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshifumi Saeki, Kenji Yashiro
  • Patent number: 4322745
    Abstract: A television signal scrambling and descrambling method and apparatus for use with a community antenna television system in which the scrambling mode employed is changed from time to time so that one cannot illegally receive the transmitted signals over a long period of time if only one of the scrambling techniques employed is decoded. In the central facility, a plurality of scrambling circuits are provided, one for each scrambling mode desired. A selected one of the scrambling circuits is selected by a switch device which is controlled so as to switch among the scrambling circuits as desired. An identifying signal is transmitted which indicates which of the scrambling circuits is active. In the terminal units at each subscriber's home there is provided a corresponding set of descrambling circuits. The received signal is coupled to the inputs of the descrambling circuits and the appropriate one of the descrambling circuits selected in accordance with the demodulated identifying signal.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: March 30, 1982
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshifumi Saeki, Kazuyoshi Onda
  • Patent number: 4245245
    Abstract: A two-way CATV system having a substantial number of terminals incorporates a central processor and transmitter system which continually interrogates the terminals at high speed, monitoring changes of usage of premium programs and other data while also permitting central control of access to restricted premium programs. For inexpensive but reliable intercommunication, short, fixed word length digital messages are frequency multiplexed onto the cable in both upstream and downstream directions, and subscriber groups are controllably selected in turn, with each subscriber being scanned in what may be an arbitrary order by transmission of unique private messages which are recognized at the terminal and in response to which previously prepared fixed length messages are immediately transmitted in return.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: January 13, 1981
    Assignee: Pioneer Electronic Corporation
    Inventors: Katsuaki Matsumoto, Yoshifumi Saeki, Osamu Tazawa, Minoru Kosaka, Masaki Saito, Hiroki Uemura, Tetuo Kanazashi, Seiji Hashimoto, Tsuyoshi Fujiwara, Tsutomu Fukui, Saburo Takaoka, Tsutomu Suzuki, Shozo Nakamuta, Toshihiko Hosaka, Kuniaki Shiratori, Youichiro Tsuda, Takashi Morii, Sumitaka Matsumura, Morihisa Oka
  • Patent number: 4145716
    Abstract: A descrambler system for a CATV television signal having IF audio, video and synchronizing components that is scrambled by a first amplitude modulation of the IF audio component and a second amplitude modulation of the combined audio, visual and synchronizing components by a key signal having a frequency that is an integral multiple of a 15.75 KHz horizontal synchronizing frequency includes a demodulator responsive to the scrambled signal, a key signal detecting circuit coupled to derive the key signal from the audio portion of the demodulator output and a dynamic limiter circuit coupled to remove noise from the key signal and provide a noise free sine wave key signal to the demodulator. The dynamic limiter circuit is an inexpensive circuit providing the signal processing characteristics of a much more expensive narrow band filter.
    Type: Grant
    Filed: April 22, 1977
    Date of Patent: March 20, 1979
    Assignee: Pioneer Electronic Corporation
    Inventors: Hiroki Uemura, Yoshifumi Saeki
  • Patent number: 4064536
    Abstract: Video signals for television are effectively scrambled and may later be descrambled without the presence of annoying visual disturbances by the introduction of a superposed distorted sine wave in synchronism with the horizontal synchronizing signal, in a "gray sync" mode of operation. Thereafter, the received signal may be normalized and descrambled by compensatory and synchronous modulation. Advantageously, the sinusoidal variation may be imposed both upon aural and visual components of the signal, and the aural AM signal may be utilized as a reference in descrambling the visual component.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: December 20, 1977
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshifumi Saeki, Hiroki Uemura
  • Patent number: 4045732
    Abstract: The operative status of an electrical apparatus unit such as a television receiver, incorporating an AC-DC converter, and drawing a substantial amount of current is sensed while differentiating from the usage of a lower amount of current, as when operating in a standby mode. The sensor distinguishes between the standby current waveform and a distinctly different current waveform generated when the AC-DC converter draws current in the mode in which full power is on. The sensor incorporates a reference current detector responsive to the mean of the absolute value of alternating current flowing through a power line to the electrical unit, and a peak value current detector responsive to the peak value of the periodic signal on the power line. A comparator circuit receives outputs from both detectors, and provides an output signal when the ratio therebetween is in excess of a predetermined value, this condition only applying when the AC-DC converter is operative.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: August 30, 1977
    Assignee: Pioneer Electronic Corporation
    Inventors: Kenji Yashiro, Yoshifumi Saeki