Patents by Inventor Mutsumi Kimura

Mutsumi Kimura 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: 7726013
    Abstract: A circuit board manufacturing method, including forming a transfer chip, the forming of the transfer chip including, forming a wiring above a first substrate, forming a plurality of first pad electrodes so as to be connected to the wiring and so as to be included in the transfer chip, and joining the transfer chip with a member such that the plurality of first pad electrodes contact the member.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: June 1, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Mutsumi Kimura
  • Patent number: 7710364
    Abstract: A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display quality simultaneously, the arrangement is provided such that if the second TFT which performs the “on-off” function of the current for the luminescent element is of an N channel type, the potential of the common power supply line (“com”) is lowered below the potential of the opposite electrode (“op”) of the luminescent element to obtain a higher gate voltage (“Vgcur”).
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: May 4, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tokuroh Ozawa, Mutsumi Kimura
  • Publication number: 20100097410
    Abstract: A display device having a scanning line, a data line, a power supply line, and a pixel. The pixel having a first transistor supplied with a selecting pulse of a scanning signal, a holding capacitor having a first electrode and a second electrode that holds an image signal from the data line and the first thin film transistor. The pixel also having a second transistor controlled by the image signal, a gate of the second transistor being electrically connected to the second electrode, and a luminescent element provided between a pixel electrode and an opposite electrode opposed to the pixel electrode driven by current that flows between the pixel electrode and the opposite electrode. A potential of the gate electrode of the second transistor being able to be shifted by supplying to the first electrode of the holding capacitor with a predetermined signal after the selecting pulse becomes non-selective.
    Type: Application
    Filed: November 13, 2009
    Publication date: April 22, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tokuroh OZAWA, Mutsumi KIMURA
  • Publication number: 20100066652
    Abstract: A display device having a substrate, a power supply line, and a pixel electrode. The display device also having a transistor having a gate electrode and electrically coupled between the power supply line and the pixel electrode, a opposite electrode, and an organic semiconductor film disposed between the pixel electrode and the opposite electrode. The display device further having a holding capacitor having a first electrode electrically coupled to the gate electrode of the transistor, a second electrode, and a first insulation film disposed between the first electrode and second electrode and a second insulation film. The holding capacitor of the display device being disposed between the substrate and the second insulation film and at a part of the second insulation film being disposed between the pixel electrode and the substrate.
    Type: Application
    Filed: October 27, 2009
    Publication date: March 18, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tokuroh Ozawa, Mutsumi Kimura
  • Publication number: 20100024533
    Abstract: It is an object of the present invention to provide a sensor that can detect various types of volatile organic compounds (VOCs), such as acetone, propylene, and alcohols, an environmental contaminant, odor, and the like. The present invention is a sensor comprising a sensor element having at least two types or more of polymer films adsorbing a target substance, measurement means that measures the adsorption properties of the target substance adsorbed on the polymer films, and recognition means that performs multivariate analysis on the measured adsorption properties to recognize the target substance.
    Type: Application
    Filed: September 22, 2009
    Publication date: February 4, 2010
    Applicants: SHINSHU UNIVERSITY, OLYMPUS CORPORATION
    Inventors: Mutsumi Kimura, Ye Liu, Toshihiro Hirai, Midori Takasaki, Takashi Mihara
  • Publication number: 20090167148
    Abstract: An electroluminescent device including a substrate, a transistor disposed above the substrate, the transistor including a gate electrode, a silicon film opposing the gate electrode, and a gate insulating film between the gate electrode and the silicon film. The electroluminescent device including a first interlayer insulation film covering the transistor, a second interlayer insulation film disposed above the first interlayer insulation film, and a pixel electrode disposed above the second interlayer insulation film and electrically connected to the transistor. The electroluminescent device including an organic EL layer disposed between the pixel electrode and a counter electrode, and a capacitor including a first electrode formed by the same material as the silicon film and a second electrode formed by the same material as the gate electrode.
    Type: Application
    Filed: February 26, 2009
    Publication date: July 2, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mutsumi Kimura, Tomoyuki Itoh
  • Publication number: 20090072758
    Abstract: A method for producing an organic EL display device is disclosed. The display device comprises a substrate, a transistor disposed on the substrate, a flattened inter-layer insulation film covering the transistor, a pixel electrode, and an organic EL layer.
    Type: Application
    Filed: October 23, 2008
    Publication date: March 19, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mutsumi Kimura, Tomoyuki Itoh
  • Publication number: 20090053396
    Abstract: An object of the invention is to improve patterning accuracy while maintaining low cost, high throughput and a high degree of freedom of an optical material in a matrix type display device and a manufacturing method thereof. In order to achieve the object, a difference in height, a desired distribution of liquid repellency and affinity to liquid, or a desired potential distribution is formed by utilizing first bus lines in a passive matrix type display device or utilizing scanning lines, signal lines, common current supply lines, pixel electrodes, an interlevel insulation film, or a light shielding layer in an active matrix type display device. A liquid optical material is selectively coated at predetermined positions by utilizing the difference in height, the desired distribution of liquid repellency and affinity to liquid, or the desired potential distribution.
    Type: Application
    Filed: August 27, 2008
    Publication date: February 26, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mutsumi Kimura, Hiroshi Kiguchi
  • Publication number: 20080316152
    Abstract: A transistor circuit is provided including a driving transistor where conductance between the source and the drain is controlled in response to a supplied voltage, and a compensating transistor where the gate is connected to one of the source and the drain, the compensating transistor being connected so as to supply input signals to the gate of the driving transistor through the source and drain. In a transistor circuit where conductance control in a driving transistor is carried out in response to the voltage of input signals, it is possible to control the conductance by using input signals of a relatively low voltage and a variance in threshold characteristics of driving transistors is compensated. With this transistor circuit, a display panel that can display picture images with reduced uneven brightness is achieved.
    Type: Application
    Filed: August 13, 2008
    Publication date: December 25, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mutsumi Kimura, Yojiro Matsueda, Tokuroh Ozawa, Michael Quinn
  • Publication number: 20080246700
    Abstract: A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display quality simultaneously, the arrangement is provided such that if the second TFT which performs the “on-off” function of the current for the luminescent element is of an N channel type, the potential of the common power supply line (“com”) is lowered below the potential of the opposite electrode (“op”) of the luminescent element to obtain a higher gate voltage (“Vgcur”).
    Type: Application
    Filed: June 10, 2008
    Publication date: October 9, 2008
    Applicant: Seiko Epson Corporation
    Inventors: Tokuroh Ozawa, Mutsumi Kimura
  • Patent number: 7405712
    Abstract: Aspects of the invention can provide a method for driving an electro-optical device, an electro-optical device and electronic equipment that can solve the insufficient supply of the data current and current fluctuation. In the driving method, a data current can be applied to a plurality of pixels provided to a display panel unit with same value through the data line regardless of grayscale data. Upon supply of the data current, in the pixel, a transistor selected in reproduction can be turned on such that a drive current corresponding to the data current output from a driving transistor is supplied to an organic EL element, thereby emitting light. A light-off signal can be supplied to the pixel at predetermined timing such that the organic EL element emits light only in the light-emitting period computed based on the grayscale data.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: July 29, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Mutsumi Kimura, Hiroyuki Hara
  • Patent number: 7362322
    Abstract: A display apparatus is provided with a current driving type light-emitting device and a driving device for controlling a driving current flowing through the light-emitting device for each pixel of the display apparatus. The display apparatus consists of power source units for supplying power for causing a driving current to flow via the driving device to the light-emitting device via a power source wire, and signal wire driving units for supplying a data signal to the driving device via signal wires. In addition, voltage adjusting units adjust a voltage for the power source units or a data signal from the signal wire driving units so that a quantity of a driving current flowing through the light-emitting device when a data signal of a predetermined voltage is supplied to the driving device via signal wires or a quantity of emitted light emitted from the light-emitting device comes close to a predetermined reference value.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: April 22, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Mutsumi Kimura, Tatsuya Shimoda, Hiroshi Kiguchi
  • Patent number: 7315295
    Abstract: The invention provides a method for implementing a multi-level display of an electro-optical device according to a time ratio gray-scale method without providing reset lines. In an electro-optical device that includes, at an intersection of a scanning line and a data line, an electro-optical element, a driving transistor that drives the electro-optical element, and a switching transistor that controls the driving transistor, a gray-scale is obtained by performing a plurality of set-reset operations.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: January 1, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Mutsumi Kimura
  • Patent number: 7253793
    Abstract: A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display quality simultaneously, the arrangement is provided such that if the second TFT which performs the “on-off” function of the current for the luminescent element is of an N channel type, the potential of the common power supply line (“com”) is lowered below the potential of the opposite electrode (“op”) of the luminescent element to obtain a higher gate voltage (“Vgcur”).
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: August 7, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Tokuroh Ozawa, Mutsumi Kimura
  • Patent number: 7242441
    Abstract: To lower the cost of manufacturing a display device, the present invention comprises a step of forming on a first substrate a release layer that releases when subjected to a specific energy, a step of forming on the release layer a plurality of pixel circuits for driving the pixels of the electro-optical device, a step of causing at least one of the pixel circuits formed on the first substrate to face the position on a second circuit, used for disposing the pixel circuits, where the pixel circuits are to be disposed, and electrically connecting that pixel circuit to the second substrate, and a step of imparting energy to a part of the release layer where the pixel circuits to be released are provided, and releasing the one pixel circuit from the first substrate along with the second substrate.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: July 10, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Mutsumi Kimura, Hiroyuki Hara
  • Patent number: 7236164
    Abstract: In a display device in accordance with the present invention, each pixel includes a plurality of luminescent elements having different luminous intensities to represent gray scales by controlling the turning ON/OFF of the luminescent elements. A digital signal is transmitted to each pixel to carry out control by thin film transistors connected in series with the luminescent elements. The luminous intensities of the luminescent elements are the geometric progressions of a common ratio of 2. The ON resistance of the thin film transistors is set to be lower than the ON resistance of the luminescent elements, while the OFF resistance of the thin film transistors is set to be higher than the OFF resistance of the luminescent elements. These features have reduced the nonuniformity in the luminous intensities of the luminescent elements caused by the nonuniformity in the conductance of the transistors, thus achieving improved image quality.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: June 26, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Mutsumi Kimura
  • Patent number: 7221339
    Abstract: A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display quality simultaneously, the arrangement is provided such that if the second TFT which performs the “on-off” function of the current for the luminescent element is of an N channel type, the potential of the common power supply line (“com”) is lowered below the potential of the opposite electrode (“op”) of the luminescent element to obtain a higher gate voltage (“Vgcur”).
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: May 22, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Tokuroh Ozawa, Mutsumi Kimura
  • Patent number: 7215403
    Abstract: The invention reduces the resistance of a feed line in a display device (electro-optical device), and reduces the loss in the current supply to a light-emitting element, etc. In an electro-optical device including an electro-optical element and a driver circuit to drive the electro-optical element, a wiring board used for the electro-optical device includes a feed line film to supply the driver circuit with current to put the electro-optical element into operation; a signal line film to supply the driver circuit with a level signal to determine intensity of the current to be supplied to the electro-optical element; and an operation line film to supply the driver circuit with an operation instruction signal to instruct whether to put the electro-optical element into operation, and the feed line film constitutes an upper layer among the feed line film, the signal line film, and the operation line film.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: May 8, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Mutsumi Kimura
  • Publication number: 20070090368
    Abstract: The invention enhances a production yield of a display device (an electro-optical device). The invention provides a method of manufacturing an electro-optical device including a display region in which a plurality of basic pixels are arranged, each basic pixel including a plurality of color pixels. The method includes: forming on a first substrate lines to drive a plurality of electro-optical elements respectively constituting the color pixels, correspondingly to the arrangement of the basic pixels; forming on a second substrate, as a chip to be transferred to each basic pixel, a drive circuit to drive the plurality of electro-optical elements which constitutes the plurality of color pixels of the basic pixels to obtain a plurality of basic-pixel driving chips; and transferring step of transferring the respective basic-pixel driving chips from the second substrate onto the first substrate, and connecting the drive circuits to regions of the lines corresponding to the basic pixels.
    Type: Application
    Filed: December 18, 2006
    Publication date: April 26, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Mutsumi Kimura
  • Patent number: 7196240
    Abstract: Methods and equipment are provided for making polybichlorophenyl non-toxic. Methods include a first oxidation step, in which polybichlorophenyl is burned, and a second oxidation step, in which exhaust gas from the first oxidation step is oxidized by contact with metallic phthalocyanines or metallic phthalocyanine derivatives and with an oxygen supply compound. Equipment includes a first furnace for burning a polybichlorophenyl-containing oil with an auxiliary fuel and a second oxidation reaction unit. The second oxidation reaction unit connects to the first furnace under seal, and includes metallic phthalocyanine or metallic phthalocyanine derivative solution supply source and an oxygen supply compound supply source.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: March 27, 2007
    Assignees: Ueda Textile Science Foundation
    Inventors: Hirofusa Shirai, Mutsumi Kimura, Kenji Hanabusa, Kunihiro Hamada, Toshihiro Hirai