Patents by Inventor Hitoshi Taniguchi
Hitoshi Taniguchi 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: 7205722Abstract: A plasma display panel comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for coverring the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.Type: GrantFiled: December 14, 2005Date of Patent: April 17, 2007Assignee: Pioneer CorporationInventors: Chiharu Koshio, Kimio Amemiya, Toshihiro Komaki, Hitoshi Taniguchi, Tatsuro Sakai, Kosuke Masuda
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Patent number: 7202604Abstract: A plasma display panel comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for coverring the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.Type: GrantFiled: February 27, 2002Date of Patent: April 10, 2007Assignee: Pioneer CorporationInventors: Chiharu Koshio, Kimio Amemiya, Toshihiro Komaki, Hitoshi Taniguchi, Tatsuro Sakai, Kosuke Masuda
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Publication number: 20070076142Abstract: In order to solve the problem that sufficient center brightness is not always obtained in a conventional liquid crystal TV and a liquid crystal monitor, a backlight module of the invention includes a plurality of cold cathode fluorescent lamps (CFL) and a diffusing reflector below, the distance between the respective CFLs is arranged so that a central portion is narrow and an end portion is wide, and the backlight module includes a triangular sectional projection structure on at the diffusing reflector only between the CFLs between which the distance is the widest, in the end portion. According to the invention, enhancement of the center brightness without increasing consumption power, reduction in the number of CFLs, and cost reduction accompanying it are achieved.Type: ApplicationFiled: September 27, 2006Publication date: April 5, 2007Inventors: Tetsuya Ohshima, Hitoshi Taniguchi, Takayuki Ota, Fumihiko Hieda, Naotoshi Sumiya
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Publication number: 20070040506Abstract: A plasma display panel comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for covering the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.Type: ApplicationFiled: October 25, 2006Publication date: February 22, 2007Inventors: Chiharu Koshio, Kimio Amemiya, Toshihiro Komaki, Hitoshi Taniguchi, Tatsuro Sakai, Kosuke Masuda
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Patent number: 7148625Abstract: A plasma display panel comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for coverring the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.Type: GrantFiled: December 14, 2005Date of Patent: December 12, 2006Assignee: Pioneer CorporationInventors: Chiharu Koshio, Kimio Amemiya, Toshihiro Komaki, Hitoshi Taniguchi, Tatsuro Sakai, Kosuke Masuda
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Publication number: 20060097637Abstract: A plasma display panel comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for coverring the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.Type: ApplicationFiled: December 14, 2005Publication date: May 11, 2006Inventors: Chiharu Koshio, Kimio Amemiya, Toshihiro Komaki, Hitoshi Taniguchi, Tatsuro Sakai, Kosuke Masuda
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Publication number: 20060097639Abstract: A plasma display panel comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for coverring the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.Type: ApplicationFiled: December 14, 2005Publication date: May 11, 2006Inventors: Chiharu Koshio, Kimio Amemiya, Toshihiro Komaki, Hitoshi Taniguchi, Tatsuro Sakai, Kosuke Masuda
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Publication number: 20050276069Abstract: A liquid crystal display apparatus having a diffusion plate and/or a prism sheet disposed between a liquid crystal display device and a plurality of light emission portions. Each light emission portion is constituted by an optical guide and one or more light emitting devices. The optical guide has a light reflection surface formed in a substrate and a light transmission surface brought into tight contact with the light reflection surface. The light emitting devices are integrated with the optical guide. Then, the light reflection surface is a scatter reflection surface, and an average angle between the light reflection surface and the light transmission surface is set to range from 7° to 23°. Thus, obtained is a thin-type liquid crystal display apparatus high in luminance of light outgoing to the front surface of the display apparatus and superior in uniformity of outgoing angle distribution or luminance distribution.Type: ApplicationFiled: May 11, 2005Publication date: December 15, 2005Inventors: Hitoshi Taniguchi, Tsunenori Yamamoto, Ikuo Hiyama
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Patent number: 6958790Abstract: A liquid crystal display apparatus having a light conductor plate, a liquid crystal cell arranged on a front surface side of the light conductor plate, and a light source arranged on a side surface of the light conductor plate so as to light the liquid crystal cell from a back surface side thereof. The light conductor plate has an incident surface for a light from the light source, a light emitting surface for emitting the input light to the liquid crystal cell, and a plurality of dots constituted by small projecting portions or small recess portions for changing a moving direction of the light from the incidence surface toward a direction of the light emitting surface. The dots are formed in at least one of the light emitting surface and a surface of the light conductor plate opposite to the light emitting surface and have a particular configuration.Type: GrantFiled: October 1, 2004Date of Patent: October 25, 2005Assignee: Hitachi, Ltd.Inventors: Hitoshi Taniguchi, Yasuo Hira, Yuji Mori
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Patent number: 6873106Abstract: A plasma display panel includes: a plurality of row electrode pairs (X, Y) provided on a front glass substrate (10); a protective layer (12) on the front glass substrate (10); and a plurality of column electrodes (D) provided in a back substrate (13) at intersections with the row electrode pairs (X, Y) to form discharge cells (C) in the discharge space (S). An ultraviolet region light emissive layer (17) having persistence characteristics allowing continuous emission of ultraviolet light as a result of excitation by ultraviolet rays having 0.1 msec or more of a wavelength is provided at a site facing each discharge cell (C) between the front glass substrate (10) and the back glass substrate (13).Type: GrantFiled: May 23, 2001Date of Patent: March 29, 2005Assignees: Pioneer Corporation, Shizuoka Pioneer CorporationInventors: Kimio Amemiya, Nobuhiko Saegusa, Chiharu Koshio, Hitoshi Taniguchi
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Publication number: 20050055706Abstract: The present invention relates to a disc drive apparatus capable of preventing skew or wobble from occurring when a spindle motor is attached to a base. The disc drive apparatus according to the present invention comprises: a turntable 22 which holds an optical disc 2; a spindle motor which rotatively drives the turntable 22; an optical pick-up 20 which writes/reads signals on or from the optical disc 2; guide shafts 42a and 42b which slidably supports the optical pick-up 20 in the radial direction of the optical disc 2, and a base 15 to which a spindle motor 23 and both end portions of each of the guide shafts 42a and 42b, wherein the spindle motor 23 is attached to the base 15 through a spacer member 28 which performs positioning of the turntable 22 in the vertical direction thereof relative to the base 15.Type: ApplicationFiled: July 14, 2004Publication date: March 10, 2005Inventors: Kiyoshi Omori, Hidekazu Seto, Takashi Aoyama, Hitoshi Taniguchi
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Publication number: 20050041178Abstract: A liquid crystal display apparatus having a light conductor plate, a liquid crystal cell arranged on a front surface side of the light conductor plate, and a light source arranged on a side surface of the light conductor plate so as to light the liquid crystal cell from a back surface side thereof. The light conductor plate has an incident surface for a light from the light source, a light emitting surface for emitting the input light to the liquid crystal cell, and a plurality of dots constituted by small projecting portions or small recess portions for changing a moving direction of the light from the incidence surface toward a direction of the light emitting surface. The dots are formed in at least one of the light emitting surface and a surface of the light conductor plate opposite to the light emitting surface and have a particular configuration.Type: ApplicationFiled: October 1, 2004Publication date: February 24, 2005Inventors: Hitoshi Taniguchi, Yasuo Hira, Yuji Mori
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Publication number: 20040208093Abstract: A disk recorder/player (1) including a skew adjusting means of a thin design is provided which includes a base (101), a disk rotation driving mechanism (102) for an optical disk (4), an optical pickup (103), first and second guide shafts (105, 106) to support the optical pickup (103) at opposite ends of the latter, an optical pickup moving means (104) guided by the first and second guide shafts (105, 106) in moving the optical pickup (103) radially of the optical disk (4), an elastic member (126) put in contact with the first and second guide shafts (105, 106) to force the first and second guide shafts (105, 106) in a direction generally perpendicular to the main side of the optical disk (4), an adjusting screw (127) put into contact with the first and second guide shafts (105, 106) from the opposite side of the elastic member (126) to move the first and second guide shafts (105, 106) in a direction opposite to the direction of forcing by the elastic member (126), and a skew adjusting means (109) which adjustType: ApplicationFiled: January 22, 2004Publication date: October 21, 2004Applicant: Sony CorporationInventors: Kiyoshi Omori, Hidehiko Yamamoto, Masazumi Shiozawa, Hitoshi Taniguchi, Kazuya Sunami, Hiroshi Kawashima
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Patent number: 6803977Abstract: A liquid crystal display apparatus having a light conductor plate, a light source arranged on a side surface of the light conductor plate so as to light a liquid crystal cell arranged on a front surface side of the light conductor plate from a back surface side thereof. The light conductor plate having an incident surface for a light from the light source, a light emitting surface for emitting the input light to the liquid crystal cell, and a plurality of dots constituted by small projecting portions or small recess portions for changing a moving direction of the light from the incidence surface toward a direction of the light emitting surface, the dots being formed in the light emitting surface and a surface of the light conductor plate opposite to the light emitting surface with each of the dots having a height or depth within a range of 2 to 100 &mgr;m.Type: GrantFiled: November 13, 2003Date of Patent: October 12, 2004Assignee: Hitachi, Ltd.Inventors: Hitoshi Taniguchi, Yasuo Hira, Yuji Mori
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Patent number: 6727963Abstract: The present invention provides a liquid crystal display apparatus having a high brightness and a less number of constituent parts. By forming a plurality of dots each constituted by a small projecting portion or a small recess portion for changing a light at a predetermined angle from an incident surface of a light conductor plate toward a direction of a transmitting surface and properly controlling an angle of incline of a cross section, it is possible to irradiate an illuminating light having a suitable angle distribution from a light emitting surface toward a display element, thereby improving a brightness of the liquid crystal display apparatus.Type: GrantFiled: January 28, 2000Date of Patent: April 27, 2004Assignee: Hitachi, Ltd.Inventors: Hitoshi Taniguchi, Yasuo Hira, Yuji Mori
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Publication number: 20040070701Abstract: A liquid crystal display apparatus having a light conductor plate, a light source arranged on a side surface of the light conductor plate so as to light a liquid crystal cell arranged on a front surface side of the light conductor plate from a back surface side thereof. The light conductor plate having an incident surface for a light from the light source, a light emitting surface for emitting the input light to the liquid crystal cell, and a plurality of dots constituted by small projecting portions or small recess portions for changing a moving direction of the light from the incidence surface toward a direction of the light emitting surface, the dots being formed in the light emitting surface and a surface of the light conductor plate opposite to the light emitting surface with each of the dots having a height or depth within a range of 2 to 100 &mgr;m.Type: ApplicationFiled: November 13, 2003Publication date: April 15, 2004Inventors: Hitoshi Taniguchi, Yasuo Hira, Yuji Mori
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Patent number: 6717635Abstract: A liquid crystal display device having a light guide plate and a light source disposed on one of side surfaces of the light guide plate so that external light is transmitted through the light guide plate and enters a liquid-crystal display portion. A plurality of dots each constituted by a small recess or protrusion portion reflecting light from the light source toward the liquid crystal display portion are formed in or on another surface of the light guide plate opposite to the liquid crystal display portion. Each of the dots have a substantially V-shape in section with an inclination angle of the section being in a range of 35° to 43°.Type: GrantFiled: September 10, 2002Date of Patent: April 6, 2004Assignees: Hitachi, Ltd., Nitto Denko CorporationInventors: Hitoshi Taniguchi, Yasuo Hira, Toshihiko Ariyoshi, Seiji Umemoto
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Patent number: 6703782Abstract: In a surface-discharge-type alternating-current plasma display panel, a discharge cell is divided into two cells: a display discharge cell C1 providing for a sustaining discharge between transparent electrodes Xa, Ya of row electrodes X, Y; and an addressing discharge cell C2 which is opposite a bus electrode Yb of the row electrode Y, giving rise to an addressing discharge in association with a column electrode D, to provide for the addressing discharge between the bus electrode Yb of the row electrode Y and a column electrode D. The display discharge cells C1 and the addressing discharge cells C2 of the discharge cells are interposed in alternate positions in the column direction so as to arrange the addressing discharge cells C2 in a back-to-back position in the column direction.Type: GrantFiled: December 2, 2002Date of Patent: March 9, 2004Assignees: Pioneer Corporation, Pioneer Display Products CorporationInventors: Eishiro Otani, Chiharu Koshio, Hitoshi Taniguchi
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Patent number: 6704070Abstract: A method for manufacturing a light guide plate having dots on one surface thereof includes forming an oxide film on a crystal plane of a silicon substrate, forming a resist film on the oxide film, and forming a dot pattern in the oxide film by using the resist film as a mask, anisotropically etching the silicon substrate by using the oxide film as a mask, forming a metal film on the silicon substrate, stripping the metal film off so as to produce a stamper or a replica thereof, and transferring the dots onto a surface of a film or a plastic sheet or plate by using the stamper or the replica.Type: GrantFiled: September 10, 2002Date of Patent: March 9, 2004Assignees: Hitachi, Ltd., Nitto Denko CorporationInventors: Hitoshi Taniguchi, Yasuo Hira, Toshihiko Ariyoshi, Seiji Umemoto
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Patent number: 6700634Abstract: Light directional diffusing elements such as hologram elements are formed on the upper surface or lower surface of a light guide plate near the light source, and dots are formed of multiple small protrusions or small depressions on the light guide plate upper or lower surface to change the direction the light transmits from the input surface of the upper surface of light guide plate to a specified angle to irradiate towards a display element, to obtain a liquid crystal display technology for an easy to assemble backlit lighting device with greater brightness and fewer dark spots.Type: GrantFiled: February 25, 2002Date of Patent: March 2, 2004Assignee: Hitachi, Ltd.Inventors: Hitoshi Taniguchi, Yasuo Hira, Tetsuo Suzuki