Patents by Inventor Kiyoshi Kuroi
Kiyoshi Kuroi 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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Publication number: 20140268063Abstract: A lighting device includes a light source that emits a first light flux of a first wavelength band, a fluorescence light emitting element including a phosphor layer which produces, when excited by light of the first wavelength band, light of a second wavelength band, a polarization separation element that has a polarization separation function for light of the first wavelength band and transmits or reflects light of the second wavelength band, a retardation film disposed in an optical path between the polarization separation element and the phosphor layer, a first reflector disposed in an optical path between the retardation film and the phosphor layer, and a second reflector that reflects the light produced by the phosphor layer. The first reflector reflects part of the first light flux toward the polarization separation element, and transmits the other part of the first light flux toward the phosphor layer.Type: ApplicationFiled: March 7, 2014Publication date: September 18, 2014Applicant: Seiko Epson CorporationInventors: Koichi AKIYAMA, Kiyoshi KUROI
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Patent number: 8649091Abstract: A screen unit includes a screen, a screen holding unit which holds the upper end of the screen, a screen winding unit around which the screen is wound, a pantograph mechanism which expands and stores the screen, and adjusting units which control the position of the upper end of the screen when the screen is expanded. The adjusting units have a support member which has a screw portion, and an adjusting screw member rotatably provided on the corresponding support member. The support member shifts in accordance with rotation of the adjusting screw member.Type: GrantFiled: February 7, 2012Date of Patent: February 11, 2014Assignee: Seiko Epson CorporationInventor: Kiyoshi Kuroi
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Patent number: 8254025Abstract: A screen unit includes a flexible screen, a pantograph mechanism which expands and stores the screen, a motor which shifts one end of the pantograph mechanism to stretch and contract the pantograph mechanism, and a wire. The screen unit further includes a housing which accommodates these components, and a cover which opens and closes at the time of expansion and storage of the screen. One end of the wire is held by the electric motor, and the other end of the wire is held by the cover, so that the cover can be closed in accordance with the contraction of the pantograph mechanism effected by the motor.Type: GrantFiled: January 25, 2012Date of Patent: August 28, 2012Assignee: Seiko Epson CorporationInventor: Kiyoshi Kuroi
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Publication number: 20120206801Abstract: A screen unit includes a screen, a screen holding unit which holds the upper end of the screen, a screen winding unit around which the screen is wound, a pantograph mechanism which expands and stores the screen, and adjusting units which control the position of the upper end of the screen when the screen is expanded. The adjusting units have a support member which has a screw portion, and an adjusting screw member rotatably provided on the corresponding support member. The support member shifts in accordance with rotation of the adjusting screw member.Type: ApplicationFiled: February 7, 2012Publication date: August 16, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Kiyoshi Kuroi
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Publication number: 20120200915Abstract: A screen unit includes a flexible screen, a pantograph mechanism which expands and stores the screen, a motor which shifts one end of the pantograph mechanism to stretch and contract the pantograph mechanism, and a wire. The screen unit further includes a housing which accommodates these components, and a cover which opens and closes at the time of expansion and storage of the screen. One end of the wire is held by the electric motor, and the other end of the wire is held by the cover, so that the cover can be closed in accordance with the contraction of the pantograph mechanism effected by the motor.Type: ApplicationFiled: January 25, 2012Publication date: August 9, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Kiyoshi KUROI
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Patent number: 8184369Abstract: A screen unit includes: a screen having a first side, a second side, and a pair of crossing sides which cross the first side and the second side; a winding shaft holding the first side and functioning as a shaft around which the screen is wound; a supporting portion supporting the second side; a pair of string-shaped members provided between the winding shaft and the supporting portion and disposed outside the pair of the crossing sides of the screen in the directions along the pair of the crossing sides; and a plurality of connecting members provided on the pair of the crossing sides to connect the screen and the pair of the string-shaped members, wherein the pair of the crossing sides are curved toward the inside of the screen, and cushioning members are provided in such a manner as to cover at least the pair of the string-shaped members.Type: GrantFiled: November 23, 2010Date of Patent: May 22, 2012Assignee: Seiko Epson CorporationInventor: Kiyoshi Kuroi
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Patent number: 8169702Abstract: A screen unit includes: a screen member; a first support member which supports one end of the screen member; a second support member which supports the other end of the screen member; a stretching and contracting device which expands the screen member; and a tensioning member disposed on the side opposite to the side where the screen member is provided with respect to the stretching and contracting device to apply tension in a direction substantially parallel with the direction from the first support member to the second support member.Type: GrantFiled: February 18, 2011Date of Patent: May 1, 2012Assignee: Seiko Epson CorporationInventors: Kiyoshi Kuroi, Hiroyuki Shindo
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Publication number: 20110199678Abstract: A screen unit includes: a screen member; a first support member which supports one end of the screen member; a second support member which supports the other end of the screen member; a stretching and contracting device which expands the screen member; and a tensioning member disposed on the side opposite to the side where the screen member is provided with respect to the stretching and contracting device to apply tension in a direction substantially parallel with the direction from the first support member to the second support member.Type: ApplicationFiled: February 18, 2011Publication date: August 18, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Kiyoshi KUROI
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Publication number: 20110141559Abstract: A screen unit includes: a screen having a first side, a second side, and a pair of crossing sides which cross the first side and the second side; a winding shaft holding the first side and functioning as a shaft around which the screen is wound; a supporting portion supporting the second side; a pair of string-shaped members provided between the winding shaft and the supporting portion and disposed outside the pair of the crossing sides of the screen in the directions along the pair of the crossing sides; and a plurality of connecting members provided on the pair of the crossing sides to connect the screen and the pair of the string-shaped members, wherein the pair of the crossing sides are curved toward the inside of the screen, and cushioning members are provided in such a manner as to cover at least the pair of the string-shaped members.Type: ApplicationFiled: November 23, 2010Publication date: June 16, 2011Applicant: Seiko Epson CorporationInventor: Kiyoshi Kuroi
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Publication number: 20110132557Abstract: A screen unit includes: a screen which has a first side and a second side opposing to each other in a first direction and extending substantially in parallel with each other; a first supporting portion extending along the first side to support the first side; a second supporting portion extending along the second side to support the second side; and a plurality of connecting mechanisms each of which extends between the first supporting portion and the second supporting portion, and expands and contracts in the first direction to move the second supporting portion close to and away from the first supporting portion, wherein the plurality of connecting mechanisms are disposed in parallel with the first supporting portion, and are located almost linearly symmetric with respect to a center line connecting approximately the center of the first side and approximately the center of the second side.Type: ApplicationFiled: December 7, 2010Publication date: June 9, 2011Applicant: Seiko Epson CorporationInventors: Kiyoshi Kuroi, Hidetoshi Hashizume
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Publication number: 20110011542Abstract: A screen includes: a screen base body, wherein the screen base body includes a plurality of substrates, each of the substrates has a sheet part and a connecting part provided at least one of the surfaces of the sheet part, the connecting part of one of the substrates is detachably connected with the connecting part of the other substrate, and when the screen is used the screen base body is produced by connecting the connecting parts of the respective substrates such that the substrates can be combined.Type: ApplicationFiled: May 14, 2010Publication date: January 20, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Kiyoshi KUROI
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Patent number: 7864418Abstract: A screen includes a screen main body, having flexibility, onto which an image light is projected; a first support and a second support which, extending one along each of a pair of opposed edges of the screen main body, each support one of the pair of edges; an auxiliary support which, being disposed between the first support and the second support, extends parallel to the first support and the second support, and supports a pair of intersecting edges intersecting with the pair of edges of the screen main body; and linkage mechanisms which, bridging adjacent supports, among the first support, second support, and auxiliary support, as well as regulating a movement of the adjacent supports in an out-of-plane direction of a projection surface of the screen main body, extend and contract in a direction in which the adjacent supports face each other, bringing the adjacent supports closer to and away from each other.Type: GrantFiled: May 15, 2009Date of Patent: January 4, 2011Assignee: Seiko Epson CorporationInventors: Kiyoshi Kuroi, Hiroyuki Shindo
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Publication number: 20090302176Abstract: A screen includes a screen main body, having flexibility, onto which an image light is projected; a first support and a second support which, extending one along each of a pair of opposed edges of the screen main body, each support one of the pair of edges; an auxiliary support which, being disposed between the first support and the second support, extends parallel to the first support and the second support, and supports a pair of intersecting edges intersecting with the pair of edges of the screen main body; and linkage mechanisms which, bridging adjacent supports, among the first support, second support, and auxiliary support, as well as regulating a movement of the adjacent supports in an out-of-plane direction of a projection surface of the screen main body, extend and contract in a direction in which the adjacent supports face each other, bringing the adjacent supports closer to and away from each other.Type: ApplicationFiled: May 15, 2009Publication date: December 10, 2009Applicant: Seiko Epson CorporationInventors: Kiyoshi Kuroi, Hiroyuki Shindo
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Patent number: D596219Type: GrantFiled: December 8, 2008Date of Patent: July 14, 2009Assignee: Seiko Epson CorporationInventors: Yoshihiro Tatara, Kiyoshi Kuroi
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Patent number: D609263Type: GrantFiled: December 8, 2008Date of Patent: February 2, 2010Assignee: Seiko Epson CorporationInventors: Yoshihiro Tatara, Kiyoshi Kuroi