Patents by Inventor Keiji Hayashi

Keiji Hayashi 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).

  • Publication number: 20100321416
    Abstract: A liquid crystal display device including a liquid crystal panel provided with plural gate lines to select a pixel and plural data lines to supply pixel data and a data driver dividing a single frame into plural fields and converting frame data into field data to supply the field data to the data line is provided. When the frame data has a tone change, the data driver performs correction to data of an odd-number field of the frame in a same direction as an increase/decrease direction of the tone change of the frame data, and performs correction to data of an even-number field of the frame in an opposite direction to the increase/decrease direction of the tone change of the frame data.
    Type: Application
    Filed: August 25, 2010
    Publication date: December 23, 2010
    Inventors: Keiji Hayashi, Tetsuya Kobayashi, Ryo Tanaka, Shinpei Nagatani, Kouichi Katagawa
  • Patent number: 7843020
    Abstract: A high withstand voltage transistor is capable of preventing its gate oxidized film from being damaged by a surge voltage/current, and includes: a gate electrode provided in a trench formed on a semiconductor substrate; a source and a drain which are respectively formed on a side of the gate electrode and another side of the gate electrode, and which are a predetermined distance away from the gate electrode; first electric field relaxation layers one of which is formed on a wall of the trench on the side of the source and another one of which is formed on a wall of the trench on the side of the drain; and second electric field relaxation layers one of which is formed between the source and the gate electrode, and another one of which is formed between the drain and the gate electrode.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: November 30, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Keiji Hayashi
  • Publication number: 20100172126
    Abstract: A light source unit includes a chassis, a light diffuser disposed to face the chassis, a light source disposed between the light diffuser and the chassis, and an air passage through which air for cooling the light source flows. The light source is disposed inside the air passage, whereas the light diffuser is disposed outside the air passage. At least a portion of the air passage is partitioned by a partition transparent to light of the light source.
    Type: Application
    Filed: March 19, 2008
    Publication date: July 8, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Keiji Hayashi
  • Publication number: 20100143633
    Abstract: A surface protection sheet including a base layer and a pressure-sensitive adhesive layer which have been formed by coextrusion. The surface protection sheet has satisfactory suitability for unwinding from a roll, etc., and the pressure-sensitive adhesive layer has a smooth surface and satisfactory adhesion to rough surfaces, is free from release ingredient transfer thereto, and hence poses no problem concerning contamination. The surface protection sheet comprises: a base layer comprising a thermoplastic resin; a pressure-sensitive adhesive layer formed on one side of the base layer; and a back treatment layer formed on the other side and comprising a polyethylene resin. The surface protection sheet is characterized in that the base layer, pressure-sensitive adhesive layer, and back treatment layer have been integrally formed by coextrusion molding and the pressure-sensitive adhesive layer contains a noncrystalline polyolefin elastomer in an amount of 50 wt. % or larger.
    Type: Application
    Filed: February 13, 2008
    Publication date: June 10, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventors: Mitsuhiro Kanada, Keiji Hayashi, Ikkou Hanaki, Kooki Ooyama, Takayuki Yamamoto
  • Publication number: 20100141661
    Abstract: A content generation system includes a host terminal and an encode terminal. The host terminal has: a lecture material display unit for displaying a lecture material on a desk top; and a desk top image transmission unit for transmitting a desk top image. The encode terminal has: a lecturer imaging data generation unit which generates lecturer imaging data by capturing a lecture performed by the lecturer; an animation data generation unit which generates animation data from the image on the desk top received from the host terminal in synchronization with the lecturer imaging data; and a content data transmission unit which transmits content data containing the lecturer imaging data and the animation data.
    Type: Application
    Filed: May 21, 2008
    Publication date: June 10, 2010
    Applicant: EARNET CO., LTD
    Inventors: Eiji Kojima, Wai Syou, Tetsuya Nakagishi, Keiji Hayashi
  • Publication number: 20100134524
    Abstract: In one embodiment of the present invention, a display device is disclosed that can realize a wide color reproduction region and high color purity while maintaining a configuration of a display element having a high resolution and a high numerical aperture. The display device includes: an illumination device including a first light source that emits light of a first color and a second light source that emits light of a complementary color with respect to the first color; a gate driver that successively selects each of the scanning lines at a cycle of 0.
    Type: Application
    Filed: May 22, 2008
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Keiji Hayashi, Kentaro Kamada
  • Patent number: 7719502
    Abstract: An MVA liquid crystal display device for displaying motion pictures includes a polymer layer formed on a surface of a vertical alignment film so as to tilt liquid crystal molecules in the liquid crystal layer slightly from a direction perpendicular to the plane of the liquid crystal layer. Further, the MVA liquid crystal display device of such a construction is subjected to overdriving.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: May 18, 2010
    Assignees: Fujitsu Limited, Au Optronics Corporation
    Inventors: Kazutaka Hanaoka, Yohei Nakanishi, Yuichi Inoue, Tsuyoshi Kamada, Keiji Hayashi, Kazuya Ueda
  • Publication number: 20100119242
    Abstract: An objective of one embodiment of the present invention is to reduce abrupt noise derived from infrared light emitted by a light source from a data signal of infrared light received by an infrared communications receiver for use with a display device including a light source without reducing the strength of the data signal. A multiplication factor for the amplitude of abrupt noise outputted by a lamp light-receiving element disposed in the vicinity of lamps of a liquid crystal television is adjusted in order for the amplitude of abrupt noise derived from the lamps and outputted by the lamp light-receiving element to be equalized with the amplitude of abrupt noise derived from the lamps and included in a data signal outputted by a data light-receiving element. Then, the abrupt noise subjected to multiplication factor adjustment is subtracted from the data signal including the abrupt noise, so that only the data signal remains and is transmitted to the liquid crystal television.
    Type: Application
    Filed: June 12, 2008
    Publication date: May 13, 2010
    Inventor: Keiji Hayashi
  • Publication number: 20100119233
    Abstract: An objective of one embodiment of the present invention is to perform infrared communications without error by reducing abrupt noise included in a data signal when a light source of a display device is driven by PWM drive. When a control portion is provided with a drive setting signal for determining whether to drive lamps of a liquid crystal television by pulse width modulation drive or by continuous drive, the control portion sets a threshold in a register for a frequency filter portion based on the provided drive setting signal. Furthermore, upon reception of infrared light from the lamps, the threshold being set is reviewed based on an occurrence frequency for abrupt noise provided by a waveform analysis portion. Thereafter, abrupt noise included in a data signal transmitted from a cell phone is reduced by the frequency filter portion, and then the data signal is transmitted to the liquid crystal television.
    Type: Application
    Filed: June 4, 2008
    Publication date: May 13, 2010
    Inventor: Keiji Hayashi
  • Publication number: 20100109544
    Abstract: A cold cathode tube lamp which can be lighted easily when the ambient temperature is low. The cold cathode tube lamp comprises discharge tubes (1, 40) having a pair of electrodes (12, 13, 42, 43) and being driven when a voltage having an AC component is supplied thereto, and ballast capacitors (2, 3, 50, 60) connected with at least one of the pair of electrodes. The ballast capacitor is arranged to come into thermal contact with the discharge tube and to increase the capacitance as the surface temperature of the ballast capacitor decreases.
    Type: Application
    Filed: July 27, 2007
    Publication date: May 6, 2010
    Inventor: Keiji Hayashi
  • Publication number: 20100061082
    Abstract: A backlight device (8) includes: a blue discharge lamp (9B) and a yellow discharge lamp (9RG) whose light-emission colors are different from each other and that emit light capable of being mixed into white light. A near infrared absorbing filter (near infrared absorbing portion) (10) that absorbs near infrared light is provided on an outer circumferential portion of the discharge lamp (9RG).
    Type: Application
    Filed: December 10, 2007
    Publication date: March 11, 2010
    Inventor: Keiji Hayashi
  • Publication number: 20100019678
    Abstract: A lamp connector allows for checking of a connection between an external electrode of an external electrode tubular lamp and a terminal fitting into which the external electrode is fitted. Because the lamp connector into which an external electrode provided on the outer surface of an end portion of a tubular lamp is fitted includes a terminal fitting which includes a terminal piece and a terminal piece insulated from each other which are to be individually brought into contact with the external electrode, it is possible to easily check conduction between the external electrode and the terminal fitting using a tester. Accordingly, any poor fitting of the lamp into the connector can be readily found and corrected.
    Type: Application
    Filed: May 9, 2007
    Publication date: January 28, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Keiji Hayashi
  • Publication number: 20090317784
    Abstract: A remote delivery system for delivering a lecture content given by an instructor to a remote location preliminarily, converts an instructor's document to an animation file, delivers to a student's terminal, automatically delivers, from the starting of a lecture, image sound data including an image and sound of the instructor, the number of the instructor's document selected by the instructor, location data of a pointer on a screen, character or figure data drawn on a whiteboard by the instructor and animation information included in the instructor's document, and displays on the student's terminal in real time by comparing an instructor document number and an animation information number preliminarily written in the animation file with delivered numbers.
    Type: Application
    Filed: May 19, 2006
    Publication date: December 24, 2009
    Inventors: Wai Syou, Tetsuya Nakagishi, Keiji Hayashi
  • Publication number: 20090268125
    Abstract: In a lighting unit, fluorescent lights and LEDs of different spectroscopic characteristics are alternately arranged in a direction X on an irradiation plane. Light sources of equal light intensity are arranged in a certain pitch for the fluorescent lights such that a uniform light amount is achieved around end portions in the direction X. The LEDs include LEDs aligned on a bottom surface of a chassis and LEDs arranged on an inner sidewall surface of the chassis. As a result, a lighting unit having a uniform amount of light across an entire irradiation plane is achieved.
    Type: Application
    Filed: June 15, 2006
    Publication date: October 29, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kentaro Kamada, Mitsuhiro Moriyasu, Keiji Hayashi, Ryoh Hatakeyama
  • Patent number: 7556762
    Abstract: The invention provides a method of inflation extrusion molding, comprising: introducing one or more resin materials extruded from one or more extruders into a die; subsequently extruding the resin material(s) from the die and inflating the extrudate into a cylindrical shape having a predetermined diameter by blown-film extrusion; and then passing the cylindrical inflated resin material through a space between stabilizers which face each other at a predetermined angle, to deform the cylindrical resin material into a flat tube shape having an elongated elliptic section, thereby producing a film or sheet having a predetermined width, wherein the deformation of the cylindrical inflated resin material into a flat tube shape having an elongated elliptic section is assisted by a guide device to thereby facilitate the deformation.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: July 7, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Kooki Ooyama, Masayoshi Natsume, Keiji Hayashi, Tadao Torii
  • Publication number: 20090149602
    Abstract: A release resin composition that is excellent in thermal stability, for example, during extrusion molding and does not cause problems such as smoking and foaming during preparation of a compound product or extrusion molding and further does not contaminate metal rollers. The release resin composition can be formed into a release layer that does not cause migration of impurities to an adhesive layer being in direct contact with the release layer and therefore does not decrease the adhesive properties of the adhesive layer. The release resin composition includes a release agent (A) of which main component is a polymer compound having a weight average molecular weight of 10000 to 1000000 and containing an aliphatic group having 8 to 30 carbon atoms and includes a thermoplastic polymer (B) containing an olefin monomer and/or a polar monomer as a constitutional unit, wherein the amount of the release agent (A) is 0.1 to 20 parts by weight to 100 parts by weight of the thermoplastic polymer (B).
    Type: Application
    Filed: January 30, 2007
    Publication date: June 11, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Maki Saitou, Shinichirou Kanai, Motohiro Seki, Satoru Yamamoto, Ikkou Hanaki, Keiji Hayashi, Kazuhito Okumura
  • Publication number: 20090140657
    Abstract: A light source device and a display device are disclosed of which high display quality can be maintained by correcting luminance or a color tone without making a user feel strangeness or inconvenience. A light source device is disclosed in at least one embodiment, including light source blocks each of which has red-color light-emitting diodes, green-color light-emitting diodes and blue-color light-emitting diodes and is capable of independently adjusting luminance of the three color diodes, a photo-receiving mechanism arranged to photo-receive light, and a correcting operation control mechanism arranged to calculate correction amounts of the luminance of the light sources in each of the blocks based on photo-receiving amounts of the photo-received light in order to maintain uniform luminance or a uniform color tone among the blocks, wherein the mechanism controls the mechanism to photo-receive the light when a termination operation of the light source device is performed.
    Type: Application
    Filed: October 3, 2006
    Publication date: June 4, 2009
    Inventors: Keiji Hayashi, Kentaro Kamada
  • Patent number: 7541723
    Abstract: A display device includes a backlight having a discharge tube and a reflector. A heat conduction member is attached to the reflector in contact with the discharge tube, so that a part of the discharge tube is locally cooled by the heat conduction member. Liquid mercury is collected at a first position in the discharge tube, and the backlight is assembled so that the heat conduction member or other cooling device is located at the first position. Also, the display device includes an optical sheet having a diffusion portion having projections containing scattering material particles.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: June 2, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Keiji Hayashi, Tetsuya Kobayashi, Tetsuya Hamada, Takeshi Gotoh, Toshihiro Suzuki, Mari Sugawara, Akio Sotokawa, Seiji Hachisuka
  • Publication number: 20090123740
    Abstract: The object of the present invention is provision of a surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face, which can protect the surface of an application object, and does not allow easy development of a dross during laser cutting processing. According to the present invention, a surface protection sheet 1 for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face 2a of a workpiece 2 during a cutting process by irradiation of a laser beam 6 on the workpiece 2 is provided, which contains a substrate layer and an adhesive layer formed on one surface of the substrate layer, wherein the substrate layer is made of a resin material having a melt viscosity measured based on JIS K7199 (1999) at 290° C. of not more than 200 Pa·s, and has a thickness of 0.01-0.12 mm.
    Type: Application
    Filed: June 27, 2006
    Publication date: May 14, 2009
    Inventors: Ikkou Hanaki, Keiji Hayashi, Kazuhito Okumura
  • Publication number: 20090059581
    Abstract: In one embodiment of the present invention, a liquid crystal panel includes a plurality of R sub-pixels that transmit red light, and a plurality of GB sub-pixels that transmit green and blue light. An R backlight emits red light continuously, whereas a G backlight for emitting green light and a B backlight for emitting blue light glow intermittently at mutually exclusive times, each backlight glowing once within one screen display period. A circuit for driving the liquid crystal panel drives the R sub-pixels based on a video signal, and the GB sub-pixels based on either a video signal selected in accordance with the glowing of the G backlight and the B backlight. Red blinking is prevented in such a manner, thereby preventing photosensitive epilepsy. Thus, it is possible to achieve a display device that provides a bright display screen without any adverse effect on the physical condition of humans.
    Type: Application
    Filed: August 25, 2006
    Publication date: March 5, 2009
    Inventors: Keiji Hayashi, Kentaro Kamada