Patents by Inventor Katsuyuki Funahata
Katsuyuki Funahata 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).
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Patent number: 8640616Abstract: The present invention provides a printing apparatus and a printing method capable of washing a printing plate with a high degree of cleanliness. The present invention is a printing apparatus and a printing method, wherein: the printing apparatus comprises a print roll, a coater that is placed below the print roll and forms ink on the print roll, a first base placed above the print roll, a first stage placed on the bottom face of the first base, a first printing plate placed on the bottom face of the first stage, a print object to which the ink formed on the print roll is transcribed, a first stage placed on the top or bottom face of the print object, and a washer for washing the first printing plate; the washer has a washing device; and a spray nozzle of the washing device is directed to the side where the first base exists.Type: GrantFiled: February 4, 2011Date of Patent: February 4, 2014Assignee: Hitachi, Ltd.Inventor: Katsuyuki Funahata
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Patent number: 8013953Abstract: An object of the present invention is to provide a liquid crystal display device having a wide view angle, reduced power consumption and high quality with an absorption axis of a polarizing plate and an optical axis of a retardation plate made to coincide with high accuracy without using expensive equipment and complicated steps. On a transparent substrate 11 is formed a retardation film 21 that is self-organized due to irregularities on a surface of a metal wire 12 formed on a wire grid polarizer to thereby generate a retardation.Type: GrantFiled: January 17, 2008Date of Patent: September 6, 2011Assignee: Hitachi, Ltd.Inventors: Masaki Matsumori, Yasushi Tomioka, Katsuyuki Funahata
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Publication number: 20110185932Abstract: The present invention provides a printing apparatus and a printing method capable of washing a printing plate with a high degree of cleanliness. The present invention is a printing apparatus and a printing method, wherein: the printing apparatus comprises a print roll, a coater that is placed below the print roll and forms ink on the print roll, a first base placed above the print roll, a first stage placed on the bottom face of the first base, a first printing plate placed on the bottom face of the first stage, a print object to which the ink formed on the print roll is transcribed, a first stage placed on the top or bottom face of the print object, and a washer for washing the first printing plate; the washer has a washing device; and a spray nozzle of the washing device is directed to the side where the first base exists.Type: ApplicationFiled: February 4, 2011Publication date: August 4, 2011Inventor: Katsuyuki FUNAHATA
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Patent number: 7859527Abstract: A reference voltage line is synchronously scanned with scanning of a scanning signal line, voltage of the reference voltage line is set to be the voltage of a common electrode, the second transistor is set to be OFF state during the reference voltage line is set in the common voltage for a pixel wherein a node between an image signal memory and said second transistor is set in a voltage so that said second transistor becomes OFF and the voltage of image signal line is set to be high voltage level when the voltage of the scanning signal line changes from low voltage level to high voltage level for the pixel wherein the node between the image signal memory and the second transistor is set in a voltage so that said second transistor becomes ON.Type: GrantFiled: September 21, 2004Date of Patent: December 28, 2010Assignee: Hitachi Displays, Ltd.Inventors: Shoichi Hirota, Susumu Edo, Hiroki Kaneko, Tetsuya Oshima, Tatsuya Sugita, Shinichi Komura, Katsuyuki Funahata
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Publication number: 20080284949Abstract: An object of the present invention is to provide a liquid crystal display device having a wide view angle, reduced power consumption and high quality with an absorption axis of a polarizing plate and an optical axis of a retardation plate made to coincide with high accuracy without using expensive equipment and complicated steps. On a transparent substrate 11 is formed a retardation film 21 that is self-organized due to irregularities on a surface of a metal wire 12 formed on a wire grid polarizer to thereby generate a retardation.Type: ApplicationFiled: January 17, 2008Publication date: November 20, 2008Inventors: Masaki Matsumori, Yasushi Tomioka, Katsuyuki Funahata
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Publication number: 20080252841Abstract: A spacer includes a spacer seat formed on an array substrate and a spacer member formed on the spacer seat. A front end of the spacer member is a curved surface. The spacer seat is formed during a process for producing the array substrate. The spacer member is formed by a reverse printing or inkjet process.Type: ApplicationFiled: April 9, 2008Publication date: October 16, 2008Inventors: Katsuyuki Funahata, Kiyosi Satou, Kotaro Araya, Yasushi Tomioka
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Patent number: 7277143Abstract: A low cost transflective type liquid crystal display is provided which can display a bright image with high contrast under both indoor and outdoor illumination environments. The liquid crystal display performing transmission type display and reflection type display, includes: a plurality of pixels surrounded on a substrate 10 by a plurality of gate electrodes 11 and a plurality of source electrodes 15 arranged perpendicularly to the gate electrodes; a switching element 19 arranged in each pixel and disposed neat at the intersection between each gate electrode and each source electrode; and a pixel electrode 16 connected to the switching element, wherein the pixel electrode is constituted of a transparent conductive layer and a conductive member 17 having a light reflection function and electrically connected to the transparent conductive layer.Type: GrantFiled: September 20, 2002Date of Patent: October 2, 2007Assignee: Hitachi Displays, Ltd.Inventors: Katsuyuki Funahata, Makoto Abe, Osamu Itoh, Shinichi Komura
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Publication number: 20050264728Abstract: A low cost transflective type liquid crystal display is provided which can display a bright image with high contrast under both indoor and outdoor illumination environments. The liquid crystal display performing transmission type display and reflection type display, includes: a plurality of pixels surrounded on a substrate 10 by a plurality of gate electrodes 11 and a plurality of source electrodes 15 arranged perpendicularly to the gate electrodes; a switching element 19 arranged in each pixel and disposed neat at the intersection between each gate electrode and each source electrode; and a pixel electrode 16 connected to the switching element, wherein the pixel electrode is constituted of a transparent conductive layer and a conductive member 17 having a light reflection function and electrically connected to the transparent conductive layer.Type: ApplicationFiled: September 20, 2002Publication date: December 1, 2005Inventors: Katsuyuki Funahata, Makoto Abe, Osamu Itoh, Shinichi Komura
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Patent number: 6894671Abstract: A display apparatus is capable of adapting sufficiently to an increase in the display frequency even when using an optical modulation element which has a fairly low response speed and can rewrite an image at a high speed. The display apparatus separately performs mapping of display data for an optical modulation element of each pixel and application of gradation information. The display apparatus divides a display period of one frame into a plurality of sub-frames, controls the input value for the optical modulation element independently per each sub-frame in the plurality of sub-frames, and displays an image with a gradation display using the optical modulation element.Type: GrantFiled: March 27, 2001Date of Patent: May 17, 2005Assignee: Hitachi, Ltd.Inventors: Tsunenori Yamamoto, Ikuo Hiyama, Shinichi Komura, Tetsuya Aoyama, Hajime Akimoto, Katsuyuki Funahata, Kazuhiro Kuwabara
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Publication number: 20050068279Abstract: A reference voltage line is synchronously scanned with scanning of a scanning signal line, voltage of the reference voltage line is set to be the voltage of a common electrode, the second transistor is set to be OFF state during the reference voltage line is set in the common voltage for a pixel wherein a node between an image signal memory and said second transistor is set in a voltage so that said second transistor becomes OFF and the voltage of image signal line is set to be high voltage level when the voltage of the scanning signal line changes from low voltage level to high voltage level for the pixel wherein the node between the image signal memory and the second transistor is set in a voltage so that said second transistor becomes ON.Type: ApplicationFiled: September 21, 2004Publication date: March 31, 2005Inventors: Shoichi Hirota, Susumu Edo, Hiroki Kaneko, Tetsuya Oshima, Tatsuya Sugita, Shinichi Komura, Katsuyuki Funahata
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Publication number: 20040211329Abstract: The invention provides a pattern forming method and a pattern forming apparatus which can form a micro pattern at a low cost. The pattern forming apparatus has a member in which a printing pattern is formed on a surface and at least the surface having the printing pattern formed thereon is siliconized, a resin supplying means for supplying a resin to one face of the surface having the pattern formed thereon in the member, and a supporting means for supporting a subject to be printed so as to transcribe the resin supplied to the member on the subject to be printed. The siliconization is achieved by arranging a silicone rubber, a silicone resin or a silicone sheet on the surface of the member. The member is formed, for example, in a cylindrical shape.Type: ApplicationFiled: February 19, 2004Publication date: October 28, 2004Inventors: Katsuyuki Funahata, Tetsurou Minemura
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Patent number: 6803980Abstract: A reflective liquid crystal display apparatus with pixels includes a first electrode substrate, a second electrode substrate and a liquid crystal layer. The first electrode substrate includes a polymer layer having plural protrusions or depressions arranged randomly formed on a glass substrate, and a reflective layer, color filters, transparent electrodes, and an alignment layer formed and laminated sequentially on the polymer layer. The second electrode substrate, includes transparent electrodes and an alignment layer formed and laminated on a glass substrate, and arranged so that the alignment layer faces the alignment layer on the first electrode substrate. The liquid crystal layer is formed by filling a liquid crystal composition into an interval between the first and second electrode substrates. Portions of the reflective layer corresponding to the portions of each pixel other than apertures of each pixel are colored black.Type: GrantFiled: August 16, 2002Date of Patent: October 12, 2004Assignee: Hitachi, Ltd.Inventors: Katsuyuki Funahata, Shinichi Komura, Kazuhiro Kuwabara, Osamu Itou, Katsumi Kondo, Makoto Yoneya, Makoto Abe
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Patent number: 6600536Abstract: A reflection type liquid crystal display apparatus can avoid degradation of a reflection surface or an electrode terminal, provide a multiple color display with high color purity, and reduce fluctuation of voltage due to loss of a drive voltage or capacitive coupling, even when a color filter is provided on a substrate on the side of a reflection plate, thereby to realize a bright display having a high contrast.Type: GrantFiled: March 27, 2000Date of Patent: July 29, 2003Assignee: Hitachi, Ltd.Inventors: Kazuhiro Kuwabara, Shinichi Komura, Osamu Itou, Katsuyuki Funahata
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Patent number: 6538711Abstract: A liquid crystal display device includes two electrode substrates and a liquid crystal layer laid between these substrates. One electrode is composed of a glass substrate with a plastics layer having plural convex portions or convex and concave portions randomly formed thereon and a lamination of a reflector, an insulating and flatting layer, a transparent electrode, and alignment layer formed on the plastics layer. The other electrode substrate is composed of a glass substrate and a lamination of a transparent electrode and alignment layer formed on the glass substrate. Both of the electrode substrates are located in a manner to allow the alignment layer of them to be opposed to each other.Type: GrantFiled: January 11, 2002Date of Patent: March 25, 2003Assignee: Hitachi, Ltd.Inventors: Katsuyuki Funahata, Shinichi Komura, Kazuhiro Kuwabara, Osamu Itou, Katsumi Kondo
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Publication number: 20020191134Abstract: A reflective liquid crystal display apparatus with pixels includes a first electrode substrate, a second electrode substrate and a liquid crystal layer. The first electrode substrate includes a polymer layer having plural protrusions or depressions arranged randomly formed on a glass substrate, and a reflective layer, color filters, transparent electrodes, and an alignment layer formed and laminated sequentially on the polymer layer. The second electrode substrate, includes transparent electrodes and an alignment layer formed and laminated on a glass substrate, and arranged so that the alignment layer faces the alignment layer on the first electrode substrate. The liquid crystal layer is formed by filling a liquid crystal composition into an interval between the first and second electrode substrates. Portions of the reflective layer corresponding to the portions of each pixel other than apertures of each pixel are colored black.Type: ApplicationFiled: August 16, 2002Publication date: December 19, 2002Inventors: Katsuyuki Funahata, Shinichi Komura, Kazuhiro Kuwabara, Osamu Itou, Katsumi Kondo, Makoto Yoneya, Makoto Abe
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Patent number: 6476890Abstract: A reflective color liquid crystal display apparatus, which can obtain bright images with a contrast in when viewed from any direction, is provided at a low cost. The reflective color liquid crystal display apparatus has an inside reflector and is able to produce bright images with a high contrast because unnecessary reflecting light from non-aperture portions can be decreased, and its aperture ratio can be determined approximately only by intervals of the reflective layer and intervals between the transparent electrodes. This can be accomplished by removing a reflective layer corresponding to black a matrix layer, adding a black matrix function to a polymer layer having protrusions and depressions under the reflective layer, and making a composition of its element so that a black matrix layer is not formed on the reflective layer, but only color filters are formed.Type: GrantFiled: October 22, 1999Date of Patent: November 5, 2002Assignee: Hitachi, Ltd.Inventors: Katsuyuki Funahata, Shinichi Komura, Kazuhiro Kuwabara, Osamu Itou, Katsumi Kondo, Makoto Yoneya, Makoto Abe
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Publication number: 20020054259Abstract: A liquid crystal display device includes two electrode substrates and a liquid crystal layer laid between these substrates. One electrode is composed of a glass substrate with a plastics layer having plural convex portions or convex and concave portions randomly formed thereon and a lamination of a reflector, an insulating and flatting layer, a transparent electrode, and alignment layer formed on the plastics layer. The other electrode substrate is composed of a glass substrate and a lamination of a transparent electrode and alignment layer formed on the glass substrate. Both of the electrode substrates are located in a manner to allow the alignment layer of them to be opposed to each other.Type: ApplicationFiled: January 11, 2002Publication date: May 9, 2002Inventors: Katsuyuki Funahata, Shinichi Komura, Kazuhiro Kuwabara, Osamu Itou, Katsumi Kondo
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Patent number: 6331845Abstract: A liquid crystal active matrix display device includes a first substrate having a thin film transistor formed thereon. A light-screening film 1 is located on the first substrate in a manner to be overlapped with an ITO. The display device includes a second substrate having a color filter and a light-screening film 2 formed thereon. The second substrate is opposed to the first substrate. The light-screening film 2 extends from the uncontrollable area by a certain value depending on a voltage from the external, resulting in improving a numerical aperture.Type: GrantFiled: September 14, 1999Date of Patent: December 18, 2001Assignees: Hitachi, LTD, Hitachi Haramachi Semi-conductor, LTDInventors: Masaaki Kitajima, Makoto Tsumura, Yoshiro Mikami, Katsuyuki Funahata, Yoshiharu Nagae, Yoko Wakui, Ryuichi Saito, Makoto Matsui, Fumiaki Nemoto
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Publication number: 20010048420Abstract: A display apparatus is capable of adapting to sufficiently increase display frequency even with an optical modulation element which has fairly low response speed and can rewrite image at high speed. The display apparatus of a system separately performs mapping of display data for optical modulation element of each pixel and application of gradation information. The display apparatus divides a display period of one frame into a plurality of sub-frames, controls input value for the optical modulation element independently per each sub-frame in the plurality of sub-frames, and displays image with gradation display by the optical modulation element.Type: ApplicationFiled: March 27, 2001Publication date: December 6, 2001Inventors: Tsunenori Yamamoto, Ikuo Hiyama, Shinichi Komura, Tetsuya Aoyama, Hajime Akimoto, Katsuyuki Funahata, Kazuhiro Kuwabara
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Patent number: 6222598Abstract: A backlight device having a light source, a waveguide provided close to the light source, this waveguide being a wedge-shaped waveguide so constructed that the incident light from the light source can be greatly changed in its direction and made to exit therefrom, a polarizing beam splitter provided on the light-exiting side of the wedge-shaped waveguide, and a light converter disposed on the light-exiting side of the polarizing beam splitter. This backlight device is used for liquid crystal displays.Type: GrantFiled: July 8, 1999Date of Patent: April 24, 2001Assignee: Hitachi, Ltd.Inventors: Ikuo Hiyama, Katsuyuki Funahata, Katsumi Kondo