Patents by Inventor Shiro Suyama
Shiro Suyama 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: 9251577Abstract: The present invention provides a method for providing information and an apparatus for providing information with which information can be secretly displayed, and further, a display technique with a lot of sense of fun can attract keen interest from people around a display such as digital signage. A method for providing information using an apparatus for providing information that displays information using a light array includes: switching and displaying an information array and a concealment array in a display cycle in which a person cannot sense an information display array of the information array using the apparatus for providing information. The information array includes the information display array concerning information to be provided, and the concealment array is generated so that the information display array becomes invisible when the concealment array overlaps with the information array.Type: GrantFiled: March 2, 2012Date of Patent: February 2, 2016Assignee: The University of TokushimaInventors: Hirotsugu Yamamoto, Shiro Suyama
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Publication number: 20140085336Abstract: The present invention provides a method for providing information and an apparatus for providing information with which information can be secretly displayed, and further, a display technique with a lot of sense of fun can attract keen interest from people around a display such as digital signage. A method for providing information using an apparatus for providing information that displays information using a light array includes: switching and displaying an information array and a concealment array in a display cycle in which a person cannot sense an information display array of the information array using the apparatus for providing information. The information array includes the information display array concerning information to be provided, and the concealment array is generated so that the information display array becomes invisible when the concealment array overlaps with the information array.Type: ApplicationFiled: March 2, 2012Publication date: March 27, 2014Inventors: Hirotsugu Yamamoto, Shiro Suyama
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Publication number: 20140061702Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence and a carrier substrate. A first and a second electrical contact layer are arranged at least regionally between the carrier substrate and the semiconductor layer sequence and are electrically insulated from each other by an electrically insulating layer. A minor layer is arranged between the semiconductor layer sequence and the carrier substrate. The semiconductor chip comprises a transparent encapsulation layer covering side surfaces of the semiconductor layer sequence, side surfaces of the minor layer and side surfaces of the electrically insulating layer facing towards the side surfaces of the semiconductor chip.Type: ApplicationFiled: March 15, 2012Publication date: March 6, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Hirotsugu Yamamoto, Shiro Suyama
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Patent number: 8576141Abstract: A three-dimensional display device includes a plurality of transmissive display units arranged in different depth positions in view from an observer and a moiré vanishing element for diffusing light. The moiré vanishing element has a spatial frequency characteristic to cut off a spatial frequency more than a spatial frequency having a cycle being twice as large as an interval of boundaries of pixels forming a first transmissive display unit arranged behind the moiré vanishing element in the view from the observer.Type: GrantFiled: December 13, 2006Date of Patent: November 5, 2013Assignee: Nippon Telegraph and Telephone CorporationInventors: Hideaki Takada, Munekazu Date, Shiro Suyama, Masahiro Ueno
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Patent number: 7538774Abstract: A virtual viewpoint image generation method for generating a virtual viewpoint image that is an image of an object viewed from a virtual viewpoint based on plural images of the object taken by plural cameras. Projection planes having a multi-layered structure are set on the images of the object, corresponding to a projection point of a projection plane. Color information of each projection point is determined based on color information of corresponding points, for each of the projection points overlapping when viewed from a reference viewpoint in a space. A degree of probability that the object exists at a distance corresponding to a position of the projection point is determined based on a degree of correlation of the corresponding points.Type: GrantFiled: June 18, 2004Date of Patent: May 26, 2009Assignee: Nippon Telegraph and Telephone CorporationInventors: Yutaka Kunita, Akihiko Hashimoto, Shiro Suyama
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Publication number: 20090079662Abstract: A three-dimensional display device includes a plurality of transmissive display units arranged in different depth positions in view from an observer and a moiré vanishing element for diffusing light. The moiré vanishing element has a spatial frequency characteristic to cut off a spatial frequency more than a spatial frequency having a cycle being twice as large as an interval of boundaries of pixels forming a first transmissive display unit arranged behind the moiré vanishing element in the view from the observer.Type: ApplicationFiled: December 13, 2006Publication date: March 26, 2009Applicant: Nippon Telegraph and Telephone CorporationInventors: Hideaki Takada, Munekazu Date, Shiro Suyama, Masahiro Ueno
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Patent number: 7336244Abstract: An optical device includes a transparent material layer having a desired curved surface configuration, a layer including a variable refractive index material having a dielectric constant anisotropy, at least two transparent electrodes arranged to sandwich the transparent material layer and the variable refractive index material, and a driving device supplying a voltage including driving frequencies f1 and f2 between the transparent electrodes. The difference ?? in the dielectric constant of the variable refractive index material due to the anisotropy is positive at one of the driving frequencies and negative at the other driving frequency.Type: GrantFiled: February 23, 2004Date of Patent: February 26, 2008Assignee: Nippon Telegraph and Telephone CorporationInventors: Shiro Suyama, Munekazu Date, Shigeto Kohda, Kinya Kato, Shigenobu Sakai
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Publication number: 20070122027Abstract: A virtual viewpoint image generation method for generating a virtual viewpoint image that is an image of an object viewed from a virtual viewpoint based on plural images of the object taken by plural cameras is provided.Type: ApplicationFiled: June 18, 2004Publication date: May 31, 2007Applicant: NIPPON TELEGRAPH AND TELEPHONE CORP.Inventors: Yutaka Kunita, Akihiko Hashimoto, Shiro Suyama
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Patent number: 7209097Abstract: An optical device includes a transparent material layer having a desired curved surface configuration, a layer including a variable refractive index material having a dielectric constant anisotropy, at least two transparent electrodes arranged to sandwich the transparent material layer and the variable refractive index material, and a driving device supplying a voltage including driving frequencies f1 and f2 between the transparent electrodes. The difference ?? in the dielectric constant of the variable refractive index material due to the anisotropy is positive at one of the driving frequencies and negative at the other driving frequency.Type: GrantFiled: February 23, 2004Date of Patent: April 24, 2007Assignee: Nippon Telegraph and Telephone CorporationInventors: Shiro Suyama, Munekazu Date, Shigeto Kohda, Kinya Kato, Shigenobu Sakai
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Patent number: 7148859Abstract: A three-dimensional representation method for generating a three-dimensional image by displaying two-dimensional images on a plurality of image planes located at different depth positions wherein two-dimensional images are generated in which an object to be presented is projected, along the line of sight of an observer, onto the plurality of image planes located at different depth positions as seen from the observer, the brightness levels of the generated two-dimensional images are changed individually for each image plane and the generated two-dimensional images are displayed on the plurality of image planes.Type: GrantFiled: November 12, 2002Date of Patent: December 12, 2006Assignee: Nippon Telegraph and Telephone CorporationInventors: Shiro Suyama, Hideaki Takada, Kazutake Uehira
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Patent number: 7002532Abstract: A three-dimensional representation method for generating a three-dimensional image by displaying two-dimensional images on a plurality of image planes located at different depth positions wherein two-dimensional images are generated in which an object to be presented is projected, along the line of sight of an observer, onto the plurality of image planes located at different depth positions as seen from the observer, the brightness levels of the generated two-dimensional images are changed individually for each image plane and the generated two-dimensional images are displayed on the plurality of image planes.Type: GrantFiled: November 12, 2002Date of Patent: February 21, 2006Assignee: Nippon Telegraph & Telephone CorporationInventors: Shiro Suyama, Hideaki Takada, Kazutake Uehira
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Patent number: 6950078Abstract: A three-dimensional representation method for generating a three-dimensional image by displaying two-dimensional images on a plurality of image planes located at different depth positions wherein two-dimensional images are generated in which an object to be presented is projected, along the line of sight of an observer, onto the plurality of image planes located at different depth positions as seen from the observer, the brightness levels of the generated two-dimensional images are changed individually for each image plane and the generated two-dimensional images are displayed on the plurality of image planes.Type: GrantFiled: November 12, 2002Date of Patent: September 27, 2005Assignee: Nippon Telegraph and Telephone CorporationInventors: Shiro Suyama, Hideaki Takada, Kazutake Uehira
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Patent number: 6940473Abstract: A three-dimensional representation method for generating a three-dimensional image by displaying two-dimensional images on a plurality of image planes located at different depth positions wherein two-dimensional images are generated in which an object to be presented is projected, along the line of sight of an observer, onto the plurality of image planes located at different depth positions as seen from the observer, the brightness levels of the generated two-dimensional images are changed individually for each image plane and the generated two-dimensional images are displayed on the plurality of image planes.Type: GrantFiled: November 12, 2002Date of Patent: September 6, 2005Assignee: Nippon Telegraph and Telephone CorporationInventors: Shiro Suyama, Hideaki Takada, Kazutake Uehira
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Patent number: 6836314Abstract: An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a first electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. There is an optical control layer which changes in scattering degree or diffraction efficiency by an electric field applied by said first electrode and said second electrode.Type: GrantFiled: July 8, 2003Date of Patent: December 28, 2004Assignee: Nippon Telegraph and Telephone CorporationInventors: Munekazu Date, Shiro Suyama, Kinya Kato, Kazutake Uehira
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Patent number: 6819393Abstract: An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a first electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. At least one of said first electrode and said second electrode has a periodic structure for inducing a fine periodic structure for light diffraction in said optical control layer.Type: GrantFiled: July 8, 2003Date of Patent: November 16, 2004Assignee: Nippon Telegraph and Telephone CorporationInventors: Munekazu Date, Shiro Suyama, Kinya Kato, Kazutake Uehira
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Publication number: 20040164927Abstract: An optical device includes a transparent material layer having a desired curved surface configuration, a layer including a variable refractive index material having a dielectric constant anisotropy and having a property in which a sign of a difference &Dgr;&egr; in dielectric constant due to the anisotropy is reversed at driving frequencies f1 and f2, at least two transparent electrodes arranged to sandwich the transparent material layer and the layer including the variable refractive index material, and a driving device supplying a voltage including the driving frequencies f1 and f2 between the transparent electrodes.Type: ApplicationFiled: February 23, 2004Publication date: August 26, 2004Applicant: Nippon Telegraph And Telephone CorporationInventors: Shiro Suyama, Munekazu Date, Shigeto Kohda, Kinya Kato, Shigenobu Sakai
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Publication number: 20040160389Abstract: An optical device includes a transparent material layer having a desired curved surface configuration, a layer including a variable refractive index material having a dielectric constant anisotropy, at least two transparent electrodes arranged to sandwich the transparent material layer and the variable refractive index material, and a driving device supplying a voltage including driving frequencies f1 and f2 between the transparent electrodes. The difference &Dgr;&egr; in the dielectric constant of the variable refractive index material due to the anisotropy is positive at one of the driving frequencies and negative at the other driving frequency.Type: ApplicationFiled: February 23, 2004Publication date: August 19, 2004Applicant: Nippon Telegraph And Telephone CorporationInventors: Shiro Suyama, Munekazu Date, Shigeto Kohda, Kinya Kato, Shigenobu Sakai
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Publication number: 20040095524Abstract: An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a fist electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. A plurality of third electrodes are provided through the substrate. Each of the third electrode has a first end part connecting to the second electrode and a second end part exposed to the other side of the substrate. A further light absorption film may be disposed between the reflection film and the second electrode.Type: ApplicationFiled: July 8, 2003Publication date: May 20, 2004Applicant: Nippon Telegraph and Telephone CorporationInventors: Munekazu Date, Shiro Suyama, Kinya Kato, Kazutake Uehira
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Patent number: 6714174Abstract: An optical device includes a transparent material layer having a desired curved surface configuration, a layer including a variable refractive index material having a dielectric constant anisotropy, at least two transparent electrodes arranged to sandwich the transparent material layer and the variable refractive index material, and a driving device supplying a voltage including driving frequencies f1 and f2 between the transparent electrodes. The difference &Dgr;∈ in the dielectric constant of the variable refractive index material due to the anisotropy is positive at one of the driving frequencies and negative at the other driving frequency.Type: GrantFiled: December 11, 2001Date of Patent: March 30, 2004Assignee: Nippon Telegraph and Telephone CorporationInventors: Shiro Suyama, Munekazu Date, Shigeto Kohda, Kinya Kato, Shigenobu Sakai
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Patent number: 6618104Abstract: An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a fist electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. A plurality of third electrodes are provided through the substrate. Each of the third electrode has a first end part connecting to the second electrode and a second end part exposed to the other side of the substrate. A further light absorption film may be disposed between the reflection film and the second electrode.Type: GrantFiled: July 27, 1999Date of Patent: September 9, 2003Assignee: Nippon Telegraph and Telephone CorporationInventors: Munekazu Date, Shiro Suyama, Kinya Kato, Kazutake Uehira