Patents by Inventor Masayasu Kakinuma
Masayasu Kakinuma 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: 20080252812Abstract: An optical element covering member is provided which can suppress degradation in display performance caused by warping and undulation. The optical element covering member includes at least one optical element, a support medium supporting the optical element; and a covering member covering the optical element and the support medium. In the above optical element covering member, the covering member has a Vicat softening point of more than 85° C., and at least one surface of the covering member, which covers the support medium, has a coefficient of thermal expansion in the range of 85% to 160% of the coefficient of thermal expansion of the support medium.Type: ApplicationFiled: April 8, 2008Publication date: October 16, 2008Applicant: SONY CORPORATIONInventors: Eiji Ohta, Toru Abiko, Masayasu Kakinuma, Ken Hosoya, Taku Ishimori, Shigehiro Yamakita, Shogo Shinkai
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Patent number: 7423809Abstract: A reflective screen is provided. A reflective screen that displays an image by reflecting light from a light source includes a reflective sheet, a light-scattering sheet, and an adhesive layer bonding the reflective sheet to the light-scattering sheet. The adhesive layer contains a coloring material that absorbs light in a particular wavelength region.Type: GrantFiled: June 16, 2005Date of Patent: September 9, 2008Assignee: Sony CorporationInventors: Yoshihiro Oshima, Masayasu Kakinuma, Hideya Chubachi, Hiroshi Hayashi, Kazuhito Shimoda, Shina Kirita
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Patent number: 7408709Abstract: A screen for displaying an image by projection light includes: a selectively reflective layer having reflection properties with respect to light in a specific wavelength region corresponding to the projection light, and having absorption properties with respect to light in a wavelength region other than the specific wavelength region. And the selectively reflective layer includes an optical multilayer film having a dielectric film and a light-absorbing thin film having transmission properties, and a reflective layer for reflecting light which has passed through the optical multilayer film.Type: GrantFiled: March 17, 2005Date of Patent: August 5, 2008Assignee: Sony CorporationInventors: Kazuhito Shimoda, Masayasu Kakinuma, Takashi Watanabe, Shunichi Kajiya
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Patent number: 7190516Abstract: There is provided a screen, which, with a simple configuration, is capable of effectively utilizing light projected thereon and realizing an even luminance distribution on the screen. This screen has a diffusion layer whose diffusion characteristic expressed as a luminance distribution with respect to a scattering angle of incident light incident at an angle of 0° is varied such that the peak position of the luminance distribution is shifted towards a greater value of scattering angle in the direction of the central portion of the screen the greater the distance from the central portion of the screen is. The present invention also provides an optical film suitable for use in such a screen, and a manufacturing method therefor.Type: GrantFiled: March 20, 2006Date of Patent: March 13, 2007Assignee: Sony CorporationInventors: Hideya Chubachi, Masayasu Kakinuma, Hiroshi Hayashi, Kazuhito Shimoda, Tomoharu Mukasa, Shina Kuriki
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Publication number: 20070035827Abstract: A reflective screen includes a light reflecting layer, and a light diffusing layer provided on the light reflecting layer. The light diffusing layer has the diffusion property that in one (A axis) of two perpendicular axial directions on a light diffusion plane, a luminance distribution curve versus incidence angle is asymmetric with respect to the zero-incidence-angle axis, and the side on which the incidence angle (half-luminance incidence angle) with half of a peak luminance on the A axis in the normal direction to the screen plane is small faces in a direction in which external light has the highest strength.Type: ApplicationFiled: June 26, 2006Publication date: February 15, 2007Applicant: Sony CorporationInventors: Kazuhito Shimoda, Shunichi Kajiya, Takashi Watanabe, Masayasu Kakinuma, Hiroyuki Kiso, Hideya Chubachi, Hiroshi Hayashi, Ken Hosoya, Akiko Murakami, Ko Ishikawa, Shinichi Kondo
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Patent number: 7095557Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.Type: GrantFiled: April 5, 2005Date of Patent: August 22, 2006Assignee: Sony CorporationInventors: Junichi Ohsako, Masayasu Kakinuma, Hideya Chubachi, Hiroshi Hayashi
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Publication number: 20060158726Abstract: There is provided a screen, which, with a simple configuration, is capable of effectively utilizing light projected thereon and realizing an even luminance distribution on the screen. This screen has a diffusion layer whose diffusion characteristic expressed as a luminance distribution with respect to a scattering angle of incident light incident at an angle of 0° is varied such that the peak position of the luminance distribution is shifted towards a greater value of scattering angle in the direction of the central portion of the screen the greater the distance from the central portion of the screen is. The present invention also provides an optical film suitable for use in such a screen, and a manufacturing method therefor.Type: ApplicationFiled: March 20, 2006Publication date: July 20, 2006Inventors: Hideya Chubachi, Masayasu Kakinuma, Hiroshi Hayashi, Kazuhito Shimoda, Tomoharu Mukasa, Shina Kuriki
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Patent number: 7057809Abstract: A clear image unaffected by the brightness of the projection environment. The projection screen according to the present invention is a projection screen for projecting thereupon narrow-band tricolor wavelength band light to display an image, and comprises an optical thin film (3) which has high reflection properties regarding the narrow-band tricolor wavelength band light, and has high transmission properties regarding at least visible wavelength band light other than the wavelength band light, on a screen base (2). With the projection screen according to the present invention configured as above, the optical thin film (3) serves as a so-called band filter. That is to say, the optical thin film (3) particularly reflects narrow-band tricolor wavelength band light and transmits light of other wavelengths, thereby functioning as a narrow-band tricolor wavelength bandwidth filter acting to separate these.Type: GrantFiled: March 14, 2003Date of Patent: June 6, 2006Assignee: Sony CorporationInventors: Shigeo Kubota, Junichi Ohsako, Masayasu Kakinuma, Kazuhito Shimoda
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Patent number: 7019899Abstract: There is provided a screen, which, with a simple configuration, is capable of effectively utilizing light projected thereon and realizing an even luminance distribution on the screen. This screen has a diffusion layer whose diffusion characteristic expressed as a luminance distribution with respect to a scattering angle of incident light incident at an angle of 0° is varied such that the peak position of the luminance distribution is shifted towards a greater value of scattering angle in the direction of the central portion of the screen the greater the distance from the central portion of the screen is. The present invention also provides an optical film suitable for use in such a screen, and a manufacturing method therefor.Type: GrantFiled: May 23, 2005Date of Patent: March 28, 2006Assignee: Sony CorporationInventors: Hideya Chubachi, Masayasu Kakinuma, Hiroshi Hayashi, Kazuhito Shimoda, Tomoharu Mukasa, Shina Kuriki
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Patent number: 7016111Abstract: There is provided a screen, which, with a simple configuration, is capable of effectively utilizing light projected thereon and realizing an even luminance distribution on the screen. This screen has a diffusion layer whose diffusion characteristic expressed as a luminance distribution with respect to a scattering angle of incident light incident at an angle of 0° is varied such that the peak position of the luminance distribution is shifted towards a greater value of scattering angle in the direction of the central portion of the screen the greater the distance from the central portion of the screen is. The present invention also provides an optical film suitable for use in such a screen, and a manufacturing method therefor.Type: GrantFiled: January 20, 2004Date of Patent: March 21, 2006Assignee: Sony CorporationInventors: Hideya Chubachi, Masayasu Kakinuma, Hiroshi Hayashi, Kazuhito Shimoda, Tomoharu Mukasa, Shina Kuriki
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Publication number: 20060050198Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.Type: ApplicationFiled: September 2, 2005Publication date: March 9, 2006Applicant: Sony CorporationInventors: Shina Kirita, Junichi Ohsako, Toshitaka Kawashima, Masayasu Kakinuma, Shuichi Haga
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Publication number: 20050280898Abstract: A reflective screen is provided. A reflective screen that displays an image by reflecting light from a light source includes a reflective sheet, a light-scattering sheet, and an adhesive layer bonding the reflective sheet to the light-scattering sheet. The adhesive layer contains a coloring material that absorbs light in a particular wavelength region.Type: ApplicationFiled: June 16, 2005Publication date: December 22, 2005Inventors: Yoshihiro Oshima, Masayasu Kakinuma, Hideya Chubachi, Hiroshi Hayashi, Kazuhito Shimoda, Shina Kirita
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Publication number: 20050219691Abstract: There is provided a screen, which, with a simple configuration, is capable of effectively utilizing light projected thereon and realizing an even luminance distribution on the screen. This screen has a diffusion layer whose diffusion characteristic expressed as a luminance distribution with respect to a scattering angle of incident light incident at an angle of 0° is varied such that the peak position of the luminance distribution is shifted towards a greater value of scattering angle in the direction of the central portion of the screen the greater the distance from the central portion of the screen is. The present invention also provides an optical film suitable for use in such a screen, and a manufacturing method therefor.Type: ApplicationFiled: May 23, 2005Publication date: October 6, 2005Inventors: Hideya Chubachi, Masayasu Kakinuma, Hiroshi Hayashi, Kazuhito Shimoda, Tomoharu Mukasa, Shina Kuriki
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Publication number: 20050207007Abstract: A screen for displaying an image by projection light includes: a selectively reflective layer having reflection properties with respect to light in a specific wavelength region corresponding to the projection light, and having absorption properties with respect to light in a wavelength region other than the specific wavelength region. And the selectively reflective layer includes an optical multilayer film having a dielectric film and a light-absorbing thin film having transmission properties, and a reflective layer for reflecting light which has passed through the optical multilayer film.Type: ApplicationFiled: March 17, 2005Publication date: September 22, 2005Inventors: Kazuhito Shimoda, Masayasu Kakinuma, Takashi Watanabe, Shunichi Kajiya
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Publication number: 20050180002Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.Type: ApplicationFiled: April 5, 2005Publication date: August 18, 2005Applicant: Sony CorporationInventors: Junichi Ohsako, Masayasu Kakinuma, Hideya Chubachi, Hiroshi Hayashi
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Patent number: 6894835Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.Type: GrantFiled: July 7, 2003Date of Patent: May 17, 2005Assignee: Sony CorporationInventors: Junichi Ohsako, Masayasu Kakinuma, Hideya Chubachi, Hiroshi Hayashi
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Publication number: 20050018285Abstract: A clear image unaffected by the brightness of the projection environment. The projection screen according to the present invention is a projection screen for projecting thereupon narrow-band tricolor wavelength band light to display an image, and comprises an optical thin film (3) which has high reflection properties regarding the narrow-band tricolor wavelength band light, and has high transmission properties regarding at least visible wavelength band light other than the wavelength band light, on a screen base (2). With the projection screen according to the present invention configured as above, the optical thin film (3) serves as a so-called band filter. That is to say, the optical thin film (3) particularly reflects narrow-band tricolor wavelength band light and transmits light of other wavelengths, thereby functioning as a narrow-band tricolor wavelength bandwidth filter acting to separate these.Type: ApplicationFiled: March 14, 2003Publication date: January 27, 2005Inventors: Shigeo Kubota, Junichi Ohsako, Masayasu Kakinuma, Kazuhito Shimoda
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Publication number: 20040196551Abstract: There is provided a screen, which, with a simple configuration, is capable of effectively utilizing light projected thereon and realizing an even luminance distribution on the screen. This screen has a diffusion layer whose diffusion characteristic expressed as a luminance distribution with respect to a scattering angle of incident light incident at an angle of 0° is varied such that the peak position of the luminance distribution is shifted towards a greater value of scattering angle in the direction of the central portion of the screen the greater the distance from the central portion of the screen is. The present invention also provides an optical film suitable for use in such a screen, and a manufacturing method therefor.Type: ApplicationFiled: January 20, 2004Publication date: October 7, 2004Inventors: Hideya Chubachi, Masayasu Kakinuma, Hiroshi Hayashi, Kazuhito Shimoda, Tomoharu Mukasa, Shina Kuriki
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Publication number: 20040061935Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.Type: ApplicationFiled: July 7, 2003Publication date: April 1, 2004Applicant: Sony CorporationInventors: Junichi Ohsako, Masayasu Kakinuma, Hideya Chubachi, Hiroshi Hayashi
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Patent number: 6579422Abstract: A whole organic EL display fabricating apparatus is provided inside a vacuum chamber. In this case, a first patterning unit B through a third patterning unit D for sequentially forming luminescent layer patterns of GREEN, BLUE, and RED on an anode pattern on a strip-shaped flexible substrate 1, and a fourth patterning unit E for forming a cathode pattern on the subsequent stage are provided. The first patterning unit B is provided with a first cooling can 21 and a vacuum vapor deposition unit below for forming the luminescent layer pattern of GREEN. The structures of the second patterning unit through the fourth patterning unit are similar to that of the first patterning unit. In fabricating a display, the substrate 1 is caused to travel from the first cooling can 21 toward a fourth cooling can 64 by the roll-to-roll system.Type: GrantFiled: March 6, 2001Date of Patent: June 17, 2003Assignee: Sony CorporationInventor: Masayasu Kakinuma