Patents by Inventor Tohru Ida

Tohru Ida 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).

  • Patent number: 9643444
    Abstract: An identification medium can be affixed to cloth or leather products by sewing. A cholesteric liquid crystal layer on which an embossed surface for forming a hologram is formed, is sandwiched between a first supporting member and a second supporting member. A mounting region that can be affixed to clothing, etc., by sewing, is formed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 9, 2017
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tohru Ida, Seiya Shibuya
  • Publication number: 20150069128
    Abstract: An optical reading device authenticates an identification medium with cholesteric liquid crystal layer, having a structure in which no movable parts are necessary for switching circular circularly polarized light filter. The optical reading device reads an image from an identification medium having a cholesteric liquid crystal layer having a hologram processed, and an ink printed pattern layer in this order, and the device includes a light emitting part in which a right circularly polarized light filter is arranged in front of an LED, a light emitting part in which a right circularly polarized light filter is arranged in front of an LED, and a controlling part which switches light emission between the light emitting parts.
    Type: Application
    Filed: March 11, 2013
    Publication date: March 12, 2015
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Shinsuke Yoshida, Seiya Shibuya, Tohru Ida, Syuhei Okubo
  • Patent number: 8976449
    Abstract: An identification medium, in which a pattern is clearly altered in observation through a right-handed circularly polarizing filter and observation through a left-handed circularly polarizing filter, is provided. The identification medium is formed by laminating a cholesteric liquid crystal layer, a ?/4 plate, and a linearly polarizing filter layer, in that order, from an observing side. The cholesteric liquid crystal layer is formed with a hologram and selectively reflects light. In an observation through a circularly polarizing filter that transmits the light reflected at the cholesteric liquid crystal layer, light reflected at a pattern printed layer is not perceived due to the function of a circularly polarizing layer. Images are clearly altered by switching a right-handed and a left-handed circularly polarizing filter.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: March 10, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventor: Tohru Ida
  • Publication number: 20150062504
    Abstract: An identification medium can be affixed to cloth or leather products by sewing. A cholesteric liquid crystal layer on which an embossed surface for forming a hologram is formed, is sandwiched between a first supporting member and a second supporting member. A mounting region that can be affixed to clothing, etc., by sewing, is formed.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 5, 2015
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tohru Ida, Seiya Shibuya
  • Patent number: 8970953
    Abstract: An identification medium is provided in which latent image having plural colors can be observed even when the identification medium is spaced away from a polarization filter. A cholesteric liquid crystal layer is provided as a specific polarization light reflection layer which reflects light having a specific polarized condition. An optical anisotropic layer having an optical anisotropy is provided at an upper position overlapping with the specific polarization light reflection layer. An image A fanned by an area having an optical anisotropy different from that of surroundings is formed at the optical anisotropic layer. When the identification medium is directly viewed, the influence of the optical anisotropy cannot be seen. When the identification medium is observed via a circular polarization filter, the image can be seen to have a specific color by the influence of the optical anisotropy.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: March 3, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tokio Sakauchi, Seiya Shibuya, Tohru Ida
  • Patent number: 8915437
    Abstract: A technique detects counterfeit products having appearances similar to authentic products with high accuracy. A cholesteric liquid crystal layer in which hologram is processed and circularly polarized light of primary rotating direction having specific central wavelength can be selectively reflected and a code forming layer in which code printed pattern that is an objective of reading is formed, are arranged in this order seen from a side from which reading is performed. The hologram image that inhibits reading of information of the code while an optical reading device reads it together with the code, and it is formed by the hologram processing.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 23, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida
  • Patent number: 8749750
    Abstract: A discrimination medium, which can have much information, can be produced on a small scale at low cost, and enables change of a sticker design at low cost, is provided. The discrimination medium includes an optically transparent first substrate on which a cholesteric liquid crystal layer is formed, the cholesteric liquid crystal layer being formed with a fine asperity used for displaying a hologram, an optically transparent second substrate on which a print layer is formed, the print layer having a predetermined pattern made of ink and having a transparent portion without the ink of the pattern around the pattern, the pattern reflecting or absorbing a light of a predetermined wavelength, and a transparent adhesive layer, wherein the optically transparent first substrate, the optically transparent second substrate, and the transparent adhesive layer, are disposed in turn from a side checked visually.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 10, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hidekazu Hoshino, Tokio Sakauchi, Mutsumi Sasaki, Tohru Ida, Naomi Iida
  • Publication number: 20130105076
    Abstract: A method for production of an identification medium, includes a forming step in which a code printed pattern is formed by printing; and a joining step in which the code printed pattern and a cholesteric liquid crystal layer are joined; wherein the identification medium includes, in order, seen from an observing side: a cholesteric liquid crystal layer, in which a hologram is processed and right circularly polarized light ?/4 plate and a linearly polarizing filter from the observing side, in which left circularly polarized light selectively penetrates toward the cholesteric liquid crystal layer when natural light enters from the opposite side to the cholesteric liquid crystal layer side; and a code printed pattern, in which a two-dimensional codes is formed.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 2, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida
  • Publication number: 20130099000
    Abstract: A technique detects counterfeit products having appearances similar to authentic products with high accuracy. A cholesteric liquid crystal layer in which hologram is processed and circularly polarized light of primary rotating direction having specific central wavelength can be selectively reflected and a code forming layer in which code printed pattern that is an objective of reading is formed, are arranged in this order seen from a side from which reading is performed. The hologram image that inhibits reading of information of the code while an optical reading device reads it together with the code, and it is formed by the hologram processing.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 25, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida
  • Patent number: 8421987
    Abstract: A discrimination medium, which can have much information, can be produced on a small scale at low cost, and enables change of a sticker design at low cost, is provided. A cholesteric liquid crystal layer, having a fine asperity for forming a hologram, is formed on a transparent first substrate. A print layer composed of a black ink is formed on a transparent second substrate. The substrates are affixed to each other via a bond layer, so that a discrimination medium is obtained. In the discrimination medium, the display content obtained by the print layer is changed, so that the display content for discrimination can be changed at low cost.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: April 16, 2013
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hidekazu Hoshino, Tokio Sakauchi, Mutsumi Sasaki, Tohru Ida, Naomi Iida
  • Patent number: 8423085
    Abstract: The present invention relates to an electronic apparatus having a displaying function in a housing unit thereof that is rotatable or can be opened/closed, and facilitates effective use of the displaying capacity in the lateral direction that the horizontally oriented screen elongated in the horizontal direction has. An electronic apparatus (a portable terminal apparatus 2) having a displaying function in a housing unit thereof that can be opened/closed or is rotatable, including a displaying unit 18 that displays a vertically oriented screen or a horizontally oriented screen 176, and a controlling unit (a CPU 90) that, when text information or information including a text is displayed in the displaying unit, sets a displaying column (a text displaying column 178) in the full lateral width that the horizontally oriented screen has and can be displayed, in the horizontally oriented screen 176 set on the displaying unit, and causes the information to be displayed in the displaying column.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: April 16, 2013
    Assignee: Fujitsu Limited
    Inventors: Yuko Nakajima, Yoshiaki Kikuchi, Tohru Ida, Manabu Nanba, Kenetsu Furuki, Hironobu Taniguchi
  • Patent number: 8390003
    Abstract: An electronic element wafer module according to the present invention is provided, in which a translucent support substrate for covering and protecting a plurality of electronic elements is attached on an electronic element wafer having the plurality of electronic elements formed thereon, and an optical filter is formed corresponding to the electronic elements on at least one surface of the translucent support substrate, where the optical filter is removed to lessen warping along a part or all of dicing lines for individually dividing the electronic element wafer module into a plurality of electronic element modules.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: March 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Ida, Eiichi Hirata
  • Patent number: 8385922
    Abstract: A mobile terminal used in a wireless communication system including a first wireless base station where a handover is not allowed between the same type of wireless base stations and a second wireless base station where a handover is allowed between the same type of wireless base stations, the mobile terminal includes a handover executing unit which executes first handover processing that switches a communication destination of the mobile terminal from the first wireless base station to the second wireless base station while communicating with the first wireless base station and a disconnecting unit which disconnects communication between the mobile terminal and the second wireless base station when the communication destination of the mobile terminal has not returned from the second wireless base station to the first wireless base station within a predetermined time.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: February 26, 2013
    Assignee: Fujitsu Limited
    Inventors: Katsuaki Akama, Tohru Ida, Kazutaka Satoh
  • Patent number: 8297522
    Abstract: Provided is a multilayer reflector about which a complicated step is not required when the molecular alignment of a retardation film is partially relaxed to form a latent image of authentication information, and about which the latent image is not made visible by the generation of unevenness in the surface. A multilayer reflector 1 has a retardation film 10 in which the phase difference ?nd1 to an observation wavelength ? is set to be m×?/4??/16??nd1?m×?/4+?/16 wherein m is a positive odd number, and a metallic reflector 11 laminated on the rear face side of this retardation film 10, wherein an authentication region 10a where predetermined authentication information is beforehand formed in the retardation film 10 is formed to give a phase difference ?nd2 set to be n×?/4??/8 ??nd2?n×?/4+?/8 wherein n is 0 or a positive even number provided that n<m, and further a light diffusing layer 12 is formed on the front face side of the retardation film 10.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: October 30, 2012
    Assignees: Nitto Denko Corporation, NHK Spring Co., Ltd.
    Inventors: Seiji Umemoto, Kazuhito Kouno, Kazumasa Shibata, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida
  • Publication number: 20120262767
    Abstract: An identification medium, in which a pattern is clearly altered in observation through a right-handed circularly polarizing filter and observation through a left-handed circularly polarizing filter, is provided. The identification medium is formed by laminating a cholesteric liquid crystal layer, a ?/4 plate, and a linearly polarizing filter layer, in that order, from an observing side. The cholesteric liquid crystal layer is formed with a hologram and selectively reflects light. In an observation through a circularly polarizing filter that transmits the light reflected at the cholesteric liquid crystal layer, light reflected at a pattern printed layer is not perceived due to the function of a circularly polarizing layer. Images are clearly altered by switching a right-handed and a left-handed circularly polarizing filter.
    Type: Application
    Filed: November 8, 2010
    Publication date: October 18, 2012
    Applicant: NHK SPRING CO., LTD.
    Inventor: Tohru Ida
  • Publication number: 20120236292
    Abstract: An identification medium is provided in which latent image having plural colors can be observed even when the identification medium is spaced away from a polarization filter. A cholesteric liquid crystal layer is provided as a specific polarization light reflection layer which reflects light having a specific polarized condition. An optical anisotropic layer having an optical anisotropy is provided at an upper position overlapping with the specific polarization light reflection layer. An image A formed by an area having an optical anisotropy different from that of surroundings is formed at the optical anisotropic layer. When the identification medium is directly viewed, the influence of the optical anisotropy cannot be seen. When the identification medium is observed via a circular polarization filter, the image can be seen to have a specific color by the influence of the optical anisotropy.
    Type: Application
    Filed: November 12, 2010
    Publication date: September 20, 2012
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tokio Sakauchi, Seiya Shibuya, Tohru Ida
  • Publication number: 20110117920
    Abstract: A mobile terminal used in a wireless communication system including a first wireless base station where a handover is not allowed between the same type of wireless base stations and a second wireless base station where a handover is allowed between the same type of wireless base stations, the mobile terminal includes a handover executing unit which executes first handover processing that switches a communication destination of the mobile terminal from the first wireless base station to the second wireless base station while communicating with the first wireless base station and a disconnecting unit which disconnects communication between the mobile terminal and the second wireless base station when the communication destination of the mobile terminal has not returned from the second wireless base station to the first wireless base station within a predetermined time.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 19, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Katsuaki AKAMA, Tohru Ida, Kazutaka Satoh
  • Publication number: 20100302486
    Abstract: A discrimination medium, which can have much information, can be produced on a small scale at low cost, and enables change of a sticker design at low cost, is provided. A cholesteric liquid crystal layer, having a fine asperity for forming a hologram, is formed on a transparent first substrate. A print layer composed of a black ink is formed on a transparent second substrate. The substrates are affixed to each other via a bond layer, so that a discrimination medium is obtained. In the discrimination medium, the display content obtained by the print layer is changed, so that the display content for discrimination can be changed at low cost.
    Type: Application
    Filed: November 14, 2008
    Publication date: December 2, 2010
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hidekazu Hoshino, Tokio Sakauchi, Mutsumi Sasaki, Tohru Ida, Naomi Iida
  • Patent number: 7812937
    Abstract: An identifying medium comprises an optical functional layer that is optically identifiable and comprises a layer containing microcapsules. The microcapsule contains a material that occurs color change by breaking the microcapsule.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: October 12, 2010
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida, Shinya Nasubida
  • Publication number: 20100123943
    Abstract: Provided is a multilayer reflector about which a complicated step is not required when the molecular alignment of a retardation film is partially relaxed to form a latent image of authentication information, and about which the latent image is not made visible by the generation of unevenness in the surface. A multilayer reflector 1 has a retardation film 10 in which the phase difference ?nd1 to an observation wavelength ? is set to be m×?/4???/16??nd1?m×?/4+?/16 wherein m is a positive odd number, and a metallic reflector 11 laminated on the rear face side of this retardation film 10, wherein an authentication region 10a where predetermined authentication information is beforehand formed in the retardation film 10 is formed to give a phase difference ?nd2 set to be n×?/4??/8??nd2?n×?/4+?/8 wherein n is 0 or a positive even number provided that n<m, and further a light diffusing layer 12 is formed on the front face side of the retardation film 10.
    Type: Application
    Filed: June 21, 2006
    Publication date: May 20, 2010
    Applicants: NITTO DENKO CORPORATION, NHK SPRING CO., LTD.
    Inventors: Seiji Umemoto, Kazuhito Kouno, Kazumasa Shibata, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida