Patents by Inventor Masaru Yasui

Masaru Yasui 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: 11978612
    Abstract: A plasma processing apparatus includes a processing chamber in which a sample is subjected to plasma processing, a first radio frequency power supply that supplies radio frequency power for generating plasma, a sample stage on which the sample is mounted, and a second radio frequency power supply that supplies radio frequency power to the sample stage, the plasma processing apparatus further includes a DC power supply that applies a DC voltage, that is changed according to a periodically repeated waveform, to the sample stage, and the waveform of one cycle has a period in which amplitude changes by a predetermined amount or more during a predetermined time. Accordingly, charged particles on a wafer surface are removed, a trench shape with high verticality can be obtained, and damage to a film that is not to be etched inside a trench can be reduced.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: May 7, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Isao Mori, Masaru Izawa, Naoki Yasui, Norihiko Ikeda, Kazuya Yamada
  • Patent number: 11914348
    Abstract: A plant operating condition setting support system for supporting the setting of an operating condition of a plant that performs a process formed by devices includes: control devices that subject controlled devices to feedback control respectively; and an operating condition setting support device that provides integrated support for the setting of the control devices, which perform feedback control tasks respectively and independently. The operating condition setting support device includes: a measured value multiple acquisition unit that acquires measured values indicating states of the controlled devices, respectively; and a control device adjustment parameter determination unit that determines, based on the measured values acquired, control device adjustment parameters used by each of the control devices to determine manipulation variables for control that should be input to the controlled devices, according to a policy learned by deep reinforcement learning.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 27, 2024
    Assignees: CHIYODA CORPORATION, GRIDINC
    Inventors: Takehito Yasui, Shizuka Ikawa, Akifumi Toki, Masaru Sogabe, Yusuke Suwa
  • Patent number: 8300006
    Abstract: Electrophoretic display units (1) comprising pixels (11) situated between common electrodes (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which endanger transistors (12) coupled to the pixel electrodes (5). These increased driving voltage (V6) to the common electrode (6). To protect the transistors (12) against these increased driving voltages, a setting signal (S1, S2) is supplied to the pixel electrode (5) via the transistor (12) for reducing a voltage across the pixel (11) resulting from a transition in the alternating voltage signal (V6). During driving frame periods (Fd) data pulses (D1, D2, D3, D4, D5, D6) are supplied, and during setting frame periods (Fs), the setting signals (S1, S2) are supplied.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: October 30, 2012
    Assignee: E Ink Corporation
    Inventors: Guofu Zhou, Masaru Yasui, Mark Thomas Johnson, Robert Waverly Zehner, Karl Raymond Amundson
  • Patent number: 7688394
    Abstract: It is an object to provide an active matrix liquid crystal display device capable of effectively eliminating flicker with a simple structure.
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: March 30, 2010
    Assignee: TPO Hong Kong Holding Limited
    Inventors: Masaru Yasui, Masahide Inoue, Keitaro Yamashita
  • Patent number: 7492360
    Abstract: An image display device having a voltage supplying device generating a first changing voltage for setting a transistor to an on-state and a second changing voltage for setting a transistor to an off-state to operate so as to establish a first supply mode, a second supply mode and a third supply mode to a plurality of gate buses for determining the corrected common electrode voltage.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: February 17, 2009
    Assignee: TPO Hong Kong Holding Limited
    Inventors: Masakatsu Yamashita, Shuji Hagino, Masaru Yasui
  • Publication number: 20080165302
    Abstract: It is an object to provide an active matrix liquid crystal display device capable of effectively eliminating flicker with a simple structure.
    Type: Application
    Filed: December 26, 2005
    Publication date: July 10, 2008
    Inventors: Masaru Yasui, Masahide Inoue, Keitaro Yamashita
  • Patent number: 7277075
    Abstract: In an RGBW-type liquid crystal display device, luminance is improved by the addition of W sub-pixels while an image is displayed without any change in chromaticity of halftones. Digital corrected values of red, green and blue are obtained by adding a predetermined digital value for driving a W sub-pixel to each of RGB digital values which correspond respectively to pixels of an acquired image. A converting calculation is effected on the digital corrected values such that the ratio of these digital corrected values for red, green and blue is made equal to the ratio of the red, green and blue digital values corresponding to the pixels of said acquired image. The RGBW sub-pixels are driven with the converted values and the predetermined digital value of driving W sub-pixel to thereby display an image.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: October 2, 2007
    Assignee: TPO Hong Kong Holding Limited
    Inventors: Satoshi Hirano, Masaru Yasui, Takeo Kamiya, deceased, Akira Kumiya, legal representative
  • Patent number: 7236206
    Abstract: A video signal interpolation can adapt an image of input video signal to voluntary aspect ratios widely. The invention also allows a display device to uniformly line-sequential scan and uses at least two line-memories (LM1, LM2) which are applied with an input digital video signal and controls writing and reading for these line-memories to generate a video signal subjected to vertical interpolation from a reading output of the line-memories. In the control, any one of the line-memories are circularly selected, and a sample sequence of the input digital video signal is sequentially written into the selected line-memory at its sample rate while sequentially reading out samples of the written sequence at a constant rate which is higher than the sample rate and which is according to a desired ratio of interpolation (vertical expansion ratio), wherein, when one of the line-memories is in writing operation, the other one of the line-memories is repeatedly read out.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: June 26, 2007
    Inventors: Masaru Yasui, Satoshi Hirano, Akira Kamiya, legal representative, Takeo Kamiya, deceased
  • Publication number: 20070052669
    Abstract: An electrophoretic display panel (1), comprises drive means (100) for controlling the potential difference of each picture element (2) to be a reset potential difference for enabling particles (6) to substantially occupy one of the extreme positions, and subsequently to be a grey scale potential difference for enabling the particles (6) to occupy the position corresponding to the image information.
    Type: Application
    Filed: October 5, 2004
    Publication date: March 8, 2007
    Inventors: Guofu Zhou, Masaru Yasui, Mark Johnson
  • Publication number: 20070052641
    Abstract: An object of the invention is to provide the miniaturized gray scale voltage outputting device.
    Type: Application
    Filed: December 22, 2003
    Publication date: March 8, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Shuji Hagino, Masaru Yasui
  • Publication number: 20070013683
    Abstract: Electrophoretic display units (1) comprising pixels (11) situated between common electrodes (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which endanger transistors (12) coupled to the pixel electrodes (5). These increased driving voltage (V6) to the common electrode (6). To protect the transistors (12) against these increased driving voltages, a setting signal (S1, S2) is supplied to the pixel electrode (5) via the transistor (12) for reducing a voltage across the pixel (11) resulting from a transition in the alternating voltage signal (V6). During driving frame periods (Fd) data pulses (D1, D2, D3, D4, D5, D6) are supplied, and during setting frame periods (Fs), the setting signals (S1, S2) are supplied.
    Type: Application
    Filed: September 27, 2004
    Publication date: January 18, 2007
    Inventors: Guofu Zhou, Masaru Yasui, Mark Johnson, Robert Zehner, Karl Amundson
  • Publication number: 20070008278
    Abstract: Electrophoretic display units (100) comprising pixels (11) situated between a common electrode (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which make disturbances more visible. To camouflage such disturbances, instead of one common electrode (6), different counter electrodes (16,17) coupled to different portions (66,67) of the electrophoretic display panel (60) are introduced. First and second counter electrodes (16,17) receive first and second voltage signals (V16, V17) lik˜ alternating voltage signals having opposite phases. First shaking data pulses (V16-VE1, V16-VE3) are supplied to the first portion (66) and second shaking data pulses (V17-VE2, V17-VE4) are supplied to the second portion (67), which first and second shaking data pulses have opposite amplitudes. Setting signals (S1,S2,S3,S4) supplied during setting frame period (FS) reduce voltage swings at pixel electrodes (5).
    Type: Application
    Filed: September 28, 2004
    Publication date: January 11, 2007
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Mark Johnson, Masaru Yasui, Guofu Zhou
  • Publication number: 20060284794
    Abstract: A system implements a method of activating an electrophoretic display (10). First, the system receives image information (14) and generates a plurality of symmetric data frames (70) from the received image information. The symmetric data frames include symmetric pixel data (72) and substantially symmetric data-frame times (74). Thereafter, the system addresses the electrophoretic display (10) based on the symmetric pixel data and the substantially symmetric data-frame times.
    Type: Application
    Filed: August 30, 2004
    Publication date: December 21, 2006
    Inventors: Mark Johnson, Goufu Zhou, Masaru Yasui
  • Publication number: 20060279526
    Abstract: Electrophoretic display units (1,100) are provided with switching circuits (50) to reduce the energy necessary for supplying data pulses (DP1, DP2) to pixels (11) via a data electrode (31,32,33,34). This energy is proportional to a differential voltage to be realised and to a capacitance (13) to be charged or discharged, which is formed by a combination of a capacitance of the pixel (11) and a capacitance of the active matrix. Due to this capacitance of the active matrix being much larger, a relatively large amount of energy is necessary. The switching circuit (50) couples the data electrode (31,32,33,34) to a voltage reference source (REF) like ground between two selection pulses (SP1, SP2) to be supplied sequentially to two respective pixels (11) coupled to the same data electrode (31,32,33,34). This reduces the amount of discharging to be realized by the data drivers (3). As a result, the maximum energy necessary is reduced.
    Type: Application
    Filed: July 6, 2004
    Publication date: December 14, 2006
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Guofu Zhou, Masaru Yasui, Mark Johnson
  • Publication number: 20060244713
    Abstract: The electrophoretic display panel (1) for displaying a picture has a plurality of pixels (2) and drive means (100). Each pixel (2) has two electrodes (3, 4) for receiving a potential difference and charged particles (6) capable of occupying a number of different positions between the electrodes (3, 4). The drive means (100) are able to supply a sequence of potential difference pulses to each pixel (2), each sequence having, to display the picture, a picture pulse for bringing the particles (6) into one of the positions.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 2, 2006
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Guofu Zhou, Masaru Yasui, Mark Johnson
  • Publication number: 20060227407
    Abstract: The electrophoretic display panel (1), for displaying a picture and a subsequent picture, has drive means (100) which are arranged for controlling the potential difference picture potential difference having a picture value and an associated picture duration representing a picture energy for bringing the particles (6) from one the positions for displaying the picture, and subsequently to be an inter-picture potential difference for bringing the particles (6) into one of the extreme positions which is closest to the position of the particles (6) for displaying the subsequent picture, and subsequently to be a subsequent picture potential difference for bringing the particles (6) into one of the positions for displaying the subsequent picture.
    Type: Application
    Filed: May 12, 2004
    Publication date: October 12, 2006
    Inventors: Guofu Zhou, Masaru Yasui, Mark Johnson
  • Publication number: 20060158572
    Abstract: Electrophoretic display units (1) having fixed frame times are driven relatively unflexibly. By introducing line driving signals having timing parameters, the frame rates can be made variable. With variable frame rates, the optical disturbance from shaking pulses (Sh) is reduced and the number of gray values is increased. The timing parameters comprise delays of starts of line driving signals and/or comprise durations of line driving signals. The lines preferably comprise rows. All possible column driving signals and, per column driving signal or per frame, a row delay parameter defining a row delay time, are stored in a memory coupled to the controller (20). Shaking pulses (Sh) are supplied at minimum row delay time, reset pulses (R) are supplied at maximum row delay time, and driving pulses (Dr) are supplied at flexible row delay time, which corresponds with a product of a predefined timeinterval and a step value defined by a number of bits.
    Type: Application
    Filed: July 5, 2004
    Publication date: July 20, 2006
    Inventors: Guofu Zhou, Neculai Ailenei, Masaru Yasui, Mark Johnson
  • Publication number: 20060119567
    Abstract: Electrophoretic display units (1) are driven more flexibly by creating sequences of frame periods in which at least two frame periods of the sequence of frame periods have a different frame period duration and by selecting frame periods from a sequence of frame periods for providing driving pulses to the pixels (11). The number of possible gray values is increased, and the gray values can be generated more accurately. During the rest of the frame periods not chosen for driving the pixel (11), this pixel (11) keeps its gray value due to the bi-stable character. A frame period duration of a frame period is adapted by delaying a start of a next frame period. By supplying data-dependent signals having sections with a positive amplitude and with a negative amplitude, the net driving result is the difference between the sections with the positive and negative amplitudes, to further increase the number of possible gray values.
    Type: Application
    Filed: June 3, 2004
    Publication date: June 8, 2006
    Inventors: Guofu Zhou, Masaru Yasui, Neculai Ailenei, Mark Johnson
  • Publication number: 20060007193
    Abstract: An object of the invention is to provide a image display device in which the component cost and the equipment cost are reduced and a voltage level of a common electrode is easily adjustable to an optimum level.
    Type: Application
    Filed: August 28, 2003
    Publication date: January 12, 2006
    Inventors: Masakatsu Yamashita, Shuji Hagino, Masaru Yasui
  • Patent number: 6954191
    Abstract: This invention relates to an RGBW-typed LCD wherein a proper luminous image can be displayed according to a predetermined calculation with a decoder where some predetermined calculation formulas are embedded. Further, not only RGBW image display but also RGW image display can be used by a predetermined controlling signal.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: October 11, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Satoshi Hirano, Masaru Yasui, Akihiko Miyazaki, Shuji Hagino, Takeo Kamiya