Patents by Inventor Dai Yoneya
Dai Yoneya 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: 7726820Abstract: A cabinet of a projection type display unit includes a base cabinet on which main component parts are mounted, and a top cover made from sheet metal which is mounted so as to cover the base cabinet, wherein a rear face portion of the top cover is formed in the shape of a curved surface being laid-down U-shaped in side view. The U-shaped curved surface is formed on an ergonomic basis, so that the rear face portion can be gripped securely even with one hand. On the back side of the top cover, bosses are integrally formed by use of a resin which is a different material from the sheet metal of the top cover, and the base cabinet and the top cover are fixed by fastening screws to the bosses from the base cabinet side.Type: GrantFiled: May 25, 2006Date of Patent: June 1, 2010Assignee: Sony CorporationInventors: Nobuyuki Hara, Shinichi Ueda, Makoto Nagata, Yoshihisa Wada, Dai Yoneya, Osamu Onodera
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Patent number: 7425793Abstract: Disclosed herein is a lamp cooling device for cooling a lamp including a light emission source for emitting light, a front transparent plate, a reflector for reflecting light emitted by the light emission source toward the front transparent plate, the light emission source being disposed in an intralamp space surrounded by the front transparent plate and the reflector, said lamp cooling device including: a duct having joint ports defined in respective opposite ends thereof and communicating with said intralamp space, said duct having a continuously extending portion between said opposite ends which is disposed in a space outside of said intralamp space, for circulating a gas through said duct and said intralamp space in isolated relation to the space outside of said intralamp space.Type: GrantFiled: March 21, 2006Date of Patent: September 16, 2008Assignee: Sony CorporationInventors: Motohisa Haga, Kei Yamaoka, Kazuya Terasaki, Yukio Ito, Takuji Ohkubo, Hiroshi Hasegawa, Katsuhiro Yamashita, Masataka Oonishi, Dai Yoneya, Satoru Miwa, Shigeyasu Nakagawa
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Patent number: 7320523Abstract: A liquid crystal panel in which temperature rise of the liquid crystal panel is sufficiently restrained by cooling the panel by means of a cooling liquid, and exudation of the cooling liquid toward the liquid crystal material is prevented. Disclosed are cover members attached to the liquid crystal panel that form cavities on the light entrance and exit sides of the panel. The cover members are such that a sealed portion of the liquid crystal material is not in contact with the cavities. The cover members are light transmitting. The cavities are filled with the cooling liquid.Type: GrantFiled: May 10, 2005Date of Patent: January 22, 2008Assignee: Sony CorporationInventors: Takuji Ohkubo, Dai Yoneya, Yoshiro Asano, Hiroaki Fujii
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Patent number: 7237905Abstract: In an LCD projector or other projection type display apparatus which uses a lamp such as a xenon lamp for a light source, the lamp is cooled efficiently without increasing ambient noises or without causing the whole apparatus to become large-sized, and at the same time the lifetime and the reliability of a fan which cools the lamp is made improved. When fans 3 and 4 which are disposed on a front side of the lamp mounted with a heat sink 1 rotate, external air of ordinary temperature is taken inlet and guided into ducts 5 and 6 so as to be blown onto the front face of the lamp by means of the fans 3 and 4. Then, high temperature air which was warmed by being blown onto the lamp is exhausted from an outlet to the outside.Type: GrantFiled: July 8, 2004Date of Patent: July 3, 2007Assignee: Sony CorporationInventors: Akihito Yajima, Hiroshi Nagai, Masami Sato, Yuji Kawasaki, Daisuke Shirato, Yoshihiko Okamura, Dai Yoneya, Takuji Ohkubo
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Publication number: 20070070298Abstract: An armor cabinet of a projection type display unit includes a base cabinet on which main component parts are mounted, and a top cover made from sheet metal which is mounted so as to cover the base cabinet, wherein a rear face portion composed of the top cover is formed in the shape of a curved surface being laid-down U-shaped in side view. At the time of carrying the projection type display unit, the rear face portion in the U-shaped curved surface shape is just fitted to the palm on an ergonomic basis, and the grip can range to the fingertips, so that the rear face portion can be gripped assuredly and securely even with one hand. On the back side of the top cover, bosses are integrally formed by use of a resin which is a different material from the sheet metal of the top cover, and the base cabinet and the top cover are fixed by fastening screws to the bosses from the base cabinet side.Type: ApplicationFiled: May 25, 2006Publication date: March 29, 2007Inventors: Nobuyuki Hara, Shinichi Ueda, Makoto Nagata, Yoshihisa Wada, Dai Yoneya, Osamu Onodera
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Publication number: 20060232973Abstract: Disclosed herein is a lamp cooling device for cooling a lamp including a light emission source for emitting light, a front transparent plate, a reflector for reflecting light emitted by the light emission source toward the front transparent plate, the light emission source being disposed in an intralamp space surrounded by the front transparent plate and the reflector, said lamp cooling device including: a duct having joint ports defined in respective opposite ends thereof and communicating with said intralamp space, said duct having a continuously extending portion between said opposite ends which is disposed in a space outside of said intralamp space, for circulating a gas through said duct and said intralamp space in isolated relation to the space outside of said intralamp space.Type: ApplicationFiled: March 21, 2006Publication date: October 19, 2006Inventors: Motohisa Haga, Kei Yamaoka, Kazuya Terasaki, Yukio Ito, Takuji Ohkubo, Hiroshi Hasegawa, Katsuhiro Yamashita, Masataka Oonishi, Dai Yoneya, Satoru Miwa, Shigeyasu Nakagawa
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Publication number: 20050270495Abstract: A liquid crystal panel is provided in which rise in temperature of the liquid crystal panel is sufficiently restrained by cooling the liquid crystal panel by means of cooling liquid and exudation of the cooling liquid toward a liquid crystal material is prevented. Cover members 5 and 9 are attached to a liquid crystal panel 1 where the cover members form cavities on the light entering side and on the light emitting side of the liquid crystal panel 1, respectively, cover the liquid crystal panel 1 such that a sealed portion 4 of the liquid crystal material is not in contact with the cavities, and transmit light entering the liquid crystal panel 1 and light emitted from liquid crystal panel 1; and the cavities are filled with cooling liquid CL.Type: ApplicationFiled: May 10, 2005Publication date: December 8, 2005Inventors: Takuji Ohkubo, Dai Yoneya, Yoshiro Asano, Hiroaki Fujii
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Patent number: 6962418Abstract: A projector 10 projects an image onto a set of screens 14 for image formation. The set of screens 14 includes a first screen 50 and second screens 54 and 56. The projector includes a housing 20, a first screen fixture 74 and a second screen fixture 76. The housing 20 has an opening 30 for fitting the first screen 50 therein. The first screen fixture 74 positions the first screen 50 in the housing opening 30 and fixes an inner surface of the first screen 50 adhesively to the housing 20. The second screen fixture 76 is positioned between the first screen 50 and the first screen fixture 74, and fixes the second screens 54 and 56 between itself and the inside of the first screen 50.Type: GrantFiled: March 21, 2005Date of Patent: November 8, 2005Assignee: Sony CorporationInventors: Kenichiro Utsumi, Dai Yoneya
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Publication number: 20050162739Abstract: A projector 10 projects an image onto a set of screens 14 for image formation. The set of screens 14 includes a first screen 50 and second screens 54 and 56. The projector includes a housing 20, a first screen fixture 74 and a second screen fixture 76. The housing 20 has an opening 30 for fitting the first screen 50 therein. The first screen fixture 74 positions the first screen 50 in the housing opening 30 and fixes an inner surface of the first screen 50 adhesively to the housing 20. The second screen fixture 76 is positioned between the first screen 50 and the first screen fixture 74, and fixes the second screens 54 and 56 between itself and the inside of the first screen 50.Type: ApplicationFiled: March 21, 2005Publication date: July 28, 2005Inventors: Kenichiro Utsumi, Dai Yoneya
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Patent number: 6876492Abstract: A projector 10 projects an image onto a set of screens 14 for image formation. The set of screens 14 includes a first screen 50 and second screens 54 and 56. The projector includes a housing 20, a first screen fixture 74 and a second screen fixture 76. The housing 20 has an opening 30 for fitting the first screen 50 therein. The first screen fixture 74 positions the first screen 50 in the housing opening 30 and fixes an inner surface of the first screen 50 adhesively to the housing 20. The second screen fixture 76 is positioned between the first screen 50 and the first screen fixture 74, and fixes the second screens 54 and 56 between itself and the inside of the first screen 50.Type: GrantFiled: May 10, 2002Date of Patent: April 5, 2005Assignee: Sony CorporationInventors: Kenichiro Utsumi, Dai Yoneya
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Publication number: 20050036116Abstract: In an LCD projector or other projection type display apparatus which uses a lamp such as a xenon lamp for a light source, the lamp is cooled efficiently without increasing ambient noises or without causing the whole apparatus to become large-sized, and at the same time the lifetime and the reliability of a fan which cools the lamp is made improved. When fans 3 and 4 which are disposed on a front side of the lamp mounted with a heat sink 1 rotate, external air of ordinary temperature is taken in from an inlet and guided into ducts 5 and 6 so as to be blown onto the front face of the lamp by means of the fans 3 and 4. Then, high temperature air which was warmed by being blown onto the lamp is exhausted from an outlet to the outside.Type: ApplicationFiled: July 8, 2004Publication date: February 17, 2005Inventors: Akihito Yajima, Hiroshi Nagai, Masami Sato, Yuji Kawasaki, Daisuke Shirato, Yoshihiko Okamura, Dai Yoneya, Takuji Ohkubo
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Publication number: 20020181098Abstract: A projector 10 projects an image onto a set of screens 14 for image formation. The set of screens 14 includes a first screen 50 and second screens 54 and 56. The projector includes a housing 20, a first screen fixture 74 and a second sceen fixture 76. The housing 20 has an opening 30 for fitting the first screen 50 therein. The first screen fixture 74 positions the first screen 50 in the housing opening 30 and fixes an inner surface of the first screen 50 adhesively to the housing 20. The second screen fixture 76 is positioned between the first screen 50 and the first screen fixture 74, and fixes the second screens 54 and 56 between itself and the inside of the first screen 50.Type: ApplicationFiled: May 10, 2002Publication date: December 5, 2002Inventors: Kenichiro Utsumi, Dai Yoneya
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Patent number: 6130658Abstract: Disclosed is a flat display allowed to facilitate a maintenance work for a back light unit contained in the flat display. The flat display includes a frame, display unit, back light unit, and chassis. The frame is positioned on the front side and has a window portion. The display unit, which is of a transmission type and is formed in a flat shape, is assembled from the rear side to the frame in such a manner as to be matched with the window portion to form an image screen. The chassis is positioned on the rear side and is engaged with the frame while putting the display unit therebetween to form a flat containing space on the back surface side of the display unit. The back light unit 3 is a surface light source which is pre-assembled using a flat case, and is removably insertable in the containing space. The back light unit functions to illuminate the transmission type display unit from the back surface side.Type: GrantFiled: September 30, 1997Date of Patent: October 10, 2000Assignee: Sony CorporationInventors: Koichi Yamamoto, Dai Yoneya, Takayoshi Omori
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Patent number: 6089739Abstract: As regards a surface light source device for use with back-light or the like of a transmissive display panel, the efficiency of the cooling structure for the device will be improved and dust and dirt will be prevented from adhering. The surface-light source device has a housing, a diffuser panel, a reflective plate, lamps, and an electric circuit portion. The housing has a window portion located ahead, a base portion located behind and side portions forming a flat space by connecting the two. The diffuser panel is mounted to the window portion of the housing. The reflective plate is supported by the side portions and partitions the flat space into a closed space ahead and an open space behind to be interposed therebetween. The lamps are housed in the closed space, and are positioned right above the reflective plate and right under the diffuser panel to radiate light toward the diffuser panel. The electric circuit portion is housed in the open space, and is electrically connected to the lamps to light them up.Type: GrantFiled: December 4, 1998Date of Patent: July 18, 2000Assignee: Sony CorporationInventors: Koichi Yamamoto, Dai Yoneya, Takayoshi Omori, Akihiro Suzuki
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Patent number: 5993027Abstract: As regards a surface light source device for use with back-light or the like of a transmissive display panel, the efficiency of the cooling structure for the device will be improved and dust and dirt will be prevented from adhering.The surface light source device has a housing, a diffuser panel, a reflective plate, lamps, and an electric circuit portion. The housing has a window portion located ahead, a base portion located behind and side portions forming a flat space by connecting the two. The diffuser panel is mounted to the window portion of the housing. The reflective plate is supported by the side portions and partitions the flat space into a closed space ahead and an open space behind to be interposed therebetween. The lamps are housed in the closed space, and are positioned right above the reflective plate and right under the diffuser panel to radiate light toward the diffuser panel. The electric circuit portion is housed in the open space, and is electrically connected to the lamps to light them up.Type: GrantFiled: September 30, 1997Date of Patent: November 30, 1999Assignee: Sony CorporationInventors: Koichi Yamamoto, Dai Yoneya, Takayoshi Omori, Akihiro Suzuki