Patents by Inventor Koichi Uchiyama
Koichi Uchiyama 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: 6963318Abstract: An image display medium (1) has a structure, where a film body (2) having a number of fine film pieces (2a) provided corresponding to display pixels is held between a supporting member (3) and a covering member (4). The supporting member (3) is provided a number of movable spaces (5) provided to individually move the fine film pieces (2a) of the film body (2). Further, on the film body (2), selective switching is made between a state where each fine film piece (2a) is adsorbed and held on the covering member (4) to shut out a light, and a state where each fine film piece (2a) is adsorbed and held on a spacing wall (5a) of the supporting member (3) to transmit a light, so that an image is displayed.Type: GrantFiled: August 15, 2002Date of Patent: November 8, 2005Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 6679167Abstract: An image display medium 1 includes a film body 2 having a number of microscopic film pieces 2a. The film body 2 is sandwiched between a supporting member 3 having receiving spaces 5 and a cover member 4. The image display medium 1 is brought into contact with a rotary drum 26 of an image generating apparatus. Corresponding to a perforated image in a stencil sheet 101 attached to the rotary drum 26, the respective microscopic film pieces 2a of the film body 2 are selectively absorbed to the cover member 4 or partitions 5a of the supporting member 3.Type: GrantFiled: March 7, 2003Date of Patent: January 20, 2004Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Publication number: 20030177920Abstract: An image display medium 1 includes a film body 2 having a number of microscopic film pieces 2a. The film body 2 is sandwiched between a supporting member 3 having receiving spaces 5 and a cover member 4. The image display medium 1 is brought into contact with a rotary drum 26 of an image generating apparatus. Corresponding to a perforated image in a stencil sheet 101 attached to the rotary drum 26, the respective microscopic film pieces 2a of the film body 2 are selectively absorbed to the cover member 4 or partitions 5a of the supporting member 3.Type: ApplicationFiled: March 7, 2003Publication date: September 25, 2003Inventor: Koichi Uchiyama
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Patent number: 6546128Abstract: In forming a color image, a covering device is placed upon a color area having a plurality of colors regularly arranged. The color area is light reflective and s formed of stripes. The covering device is formed of strips whose phase substantially matches the stripes of the color area and printed on the color area. A color is presented by a color mixture of colors not covered by the covering device in the color area, wherein the color mixture is a subtractive color mixture.Type: GrantFiled: May 9, 1996Date of Patent: April 8, 2003Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Publication number: 20030043092Abstract: An image display medium (1) has a structure, where a film body (2) having a number of fine film pieces (2a) provided corresponding to display pixels is held between a supporting member (3) and a covering member (4). The supporting member (3) is provided a number of movable spaces (5) provided to individually move the fine film pieces (2a) of the film body (2). Further, on the film body (2), selective switching is made between a state where each fine film piece (2a) is adsorbed and held on the covering member (4) to shut out a light, and a state where each fine film piece (2a) is adsorbed and held on a spacing wall (5a) of the supporting member (3) to transmit a light, so that an image is displayed.Type: ApplicationFiled: August 15, 2002Publication date: March 6, 2003Inventor: Koichi Uchiyama
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Publication number: 20020098314Abstract: Disclosed are a stencil sheet which can smoothly and accurately be perforated even by a small amount of energy while having a required strength and a stencil plate produced from which is easy to control the amount of an ink to be dislocated to an object to be printed and has such an advantage that setoff is small, printability and definition of printed images are excellent, jamming is not caused, and wrinkles are not formed when stencil printing is performed by using the stencil plate; a process for producing the stencil sheet; and a process for producing a stencil plate;Type: ApplicationFiled: January 17, 2002Publication date: July 25, 2002Applicant: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 6346959Abstract: An image forming apparatus is used for forming a print image on a color image forming sheet on which a plurality of units is formed in a regular pattern. Each unit is formed of plural color areas for showing one color portion. The image forming apparatus includes a storing device for storing image plotting data showing color-plotted images; a control device for translating the image plotting data into print image data including plural groups of digits corresponding to the color areas in one unit; a detecting device for detecting a position of the color image forming sheet on the image forming apparatus and outputting a detection signal upon detection of the position; and a recording device for selectively covering the plural color areas on the color image forming sheet according to the print image data and the detection signal from the detecting means. Thus, the color-plotted image is produced on the color image forming sheet.Type: GrantFiled: October 31, 1996Date of Patent: February 12, 2002Assignee: Riso Kagaku CorporationInventors: Koichi Uchiyama, Noboru Inamine
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Patent number: 6089152Abstract: In a stencil printing method, an image on a printing material is formed by forcing ink to pass through perforations formed in a stencil sheet and to transfer onto the printing material. The method includes preparing ink transfer device having a surface made of an elastically deformable material; applying ink on the surface of the ink transfer device; and pressing the surface of the ink transfer device against the stencil sheet. Thus, a part of the ink transfer device having the ink deforms to enter into the perforations, thereby transferring the ink onto the printing material through the perforations of the stencil sheet to conduct printing on the printing material.Type: GrantFiled: July 13, 1998Date of Patent: July 18, 2000Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 6089150Abstract: In a stencil printing machine, one surface of a stencil sheet with a perforated image is placed in contact with an upper surface of a printing material. Ink is provided on the other surface of the stencil sheet. Suction force is exerted on a bottom surface of the printing material, so that the ink is allowed to pass through the perforated image and then transfer to the upper surface of the printing material, thereby completing stencil printing.Type: GrantFiled: September 24, 1998Date of Patent: July 18, 2000Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 6053100Abstract: A stencil printing machine includes a main body; a covering openably attached to a surface of the main body and enclosing a space between the main body and the covering for storing a printing sheet and a stencil sheet therein; a flexible sheet attached to the covering so as to face the stencil sheet; a pressure reducing device disposed under the main body so as to communicate with the space and reducing pressure in the space; and a manual operating device for operating the pressure reducing device when being pressed downwardly from an operation start position that is substantially in the same level as the covering.Type: GrantFiled: April 9, 1999Date of Patent: April 25, 2000Assignee: Riso Kagaku CorporationInventors: Koichi Uchiyama, Junnosuke Katsuyama
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Patent number: 6035778Abstract: A stencil printing plate is formed by perforating a film of a stencil sheet, and disposing a solid material on perforations of the film. The solid material includes a solvent soluble ink. when the solvent is supplied to the solid material, ink in the solid material is transferred to a sheet through the perforations.Type: GrantFiled: May 26, 1998Date of Patent: March 14, 2000Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 5932318Abstract: A color image forming sheet is formed of a sheet substrate and a color area having plural colors. The plural colors are arranged in a regular pattern on the surface of the substrate so that a ground color of the substrate surface is exposed in a regular pattern, in which a desired color is presented by a color mixture when part of the sheet surface is covered.Type: GrantFiled: November 21, 1996Date of Patent: August 3, 1999Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 5721794Abstract: An optical switch comprises a pair of optical interrupters 31 and 32, a shutter 41 and a switch knob 61. The optical interrupters are composed of light-emitting elements 11 and 12 and optical fibers 21 and 22. The optical fiber of each optical interrupter is positioned coaxial to the light path of the light-emitting element and faces the light-emitting element with a predetermined space. The shutter 41 has at least one slit 42 to allow light passage and is provided slidable perpendicularly across the light path of the optical interrupters, and the switch knob 61 slides the shutter 41. The optical switch is turned on or off through the operation of the switch knob 61 as the slit 42 of the shutter 41 is positioned in the light paths of the optical interrupters, allowing the light to pass through the slit, or as the barrier portion of the shutter 41 is positioned in the light paths of the optical interrupters, blocking the light.Type: GrantFiled: November 22, 1996Date of Patent: February 24, 1998Assignee: Kel CorporationInventors: Koichi Uchiyama, Ryuichi Tagashira
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Patent number: 5457826Abstract: A whirlpool bath with an inverter-controlled circulating pump comprises a bathtub body, a circulating pump driven by a power-operated motor, a hot water circulation path disposed between the bathtub body and the circulating pump, the hot water circulation path comprising a hot water suction path and a hot water forced-feed path, the hot water forced-feed path having at least one terminal end which communicates with the interior of the bathtub body, at least one blow-off nozzle which is mounted on the terminal end of the hot water forced-feed path, an air intake portion connected to the hot water forced-feed path to permit blowing of bubbling hot water into the bathtub body from the blow-off nozzles, an inverter interposed between a drive circuit of the power-operated motor of the circulating pump and a power source and an electrical insulation means protecting the transfer of high frequency components of inverter-produced current to the hot water in the bathtub body.Type: GrantFiled: December 6, 1993Date of Patent: October 17, 1995Assignee: Toto Ltd.Inventors: Hisato Haraga, Yasutoshi Inatomi, Takashi Obata, Mituaki Hashida, Koichi Uchiyama, Kenji Moriyama
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Patent number: 5245714Abstract: A whirlpool bath is provided with a bathtub body, a circulating pump, a hot water circulation path disposed between said bathtub body and said circulating pump, a plurality of blow-off nozzles which are mounted on said respective terminal ends of the hot water circulation path, and an air intake portion connected to the hot water circulation path to permit blowing of air-mixed hot water into said bathtub body from the blow-off nozzles and control means for selectively controlling the degree of opening of each blow-off nozzle, the degree of opening of the air intake portion and the number of revolutions of said circulating pump to provide blow-off of the hot water in various modes which are different in the blow-off amount and pressure. Namely, the whirlpool bath is capable of giving various kinds of massaging effect including a stimulating effect and a relaxing effect to a bather.Type: GrantFiled: December 27, 1989Date of Patent: September 21, 1993Assignee: Toto Ltd.Inventors: Hisato Haraga, Yasutoshi Inatomi, Takashi Obata, Mituaki Hasida, Koichi Uchiyama, Kenji Moriyama
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Patent number: 5244620Abstract: A mold forming method includes steps of preparing a master having pores corresponding to an original image, holding the master under a predetermined tension, applying a mold forming material to the master, and hardening the mold forming material to produce a mold having an image corresponding to the original.Type: GrantFiled: April 30, 1991Date of Patent: September 14, 1993Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama
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Patent number: 5144702Abstract: A blow-off nozzle structure capable of automatically varying the blow-off volume of water comprises a tubular nozzle casing defining a blow-off flow forming passage therein, the passage forming a blow-off opening at a front end thereof and a hot water inlet opening at a rear end thereof, a valve seat formed in the midst of the blow-off flow forming passage, a valve element capable of being extended to or retracted from said valve seat so as to adjust the degree of opening of said valve seat, an air mixing portion defined in the blow-off flow forming passage and disposed at a position in front of the valve seat, the air mixing portion communicated with an air intake portion which has one end opened to atmosphere, and an automatic valve-element reciprocating means capable of moving said valve element toward or away from said valve seat.Type: GrantFiled: December 27, 1989Date of Patent: September 8, 1992Assignee: Toto Ltd.Inventors: Hisato Haraga, Yasutoshi Inatomi, Takashi Obata, Mituaki Hashida, Koichi Uchiyama, Kenji Moriyama
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Patent number: 5000089Abstract: A picture forming method in which a picture forming material having fluidity at least under a predetermined condition is forced to pass through a memographic plate having an original image in pores, to form a sterographic picture corresponding to said original image of said memeographic plate.Type: GrantFiled: January 3, 1990Date of Patent: March 19, 1991Assignee: Riso Kagaku CorporationInventor: Koichi Uchiyama