Patents by Inventor Masahiko Akiyama

Masahiko Akiyama 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: 6936912
    Abstract: An active matrix substrate comprises a substrate, a plurality of adhesion parts provided on the substrate so as to have substantially the same height, and a plurality of active elements provided on the plurality of adhesion parts, respectively, each of the plurality of adhesion parts including a height control member and an adhesive.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: August 30, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Akiyama, Yujiro Hara, Yutaka Onozuka, Tsuyoshi Hioki, Mitsuo Nakajima
  • Publication number: 20050167665
    Abstract: An active matrix substrate comprises a substrate, a thick-film adhesive pad made of organic resin, provided on the substrate and including, at least at a part of a side face thereof, an inclined region having a first contact angle smaller than 90 degrees to the main face of the substrate, a thin-film active element provided on the thick-film adhesive pad, and a thin-film interconnection line connected to the thin-film active element and extending onto the substrate via the inclined region, a film thickness of the thick-film adhesive pad being four or more times that of the thin-film interconnection line.
    Type: Application
    Filed: March 22, 2005
    Publication date: August 4, 2005
    Inventors: Yutaka Onozuka, Mitsuo Nakajima, Yujiro Hara, Tsuyoshi Hioki, Masahiko Akiyama
  • Publication number: 20050167666
    Abstract: An active matrix substrate comprises a substrate, a thick-film adhesive pad made of organic resin, provided on the substrate and including, at least at a part of a side face thereof, an inclined region having a first contact angle smaller than 90 degrees to the main face of the substrate, a thin-film active element provided on the thick-film adhesive pad, and a thin-film interconnection line connected to the thin-film active element and extending onto the substrate via the inclined region, a film thickness of the thick-film adhesive pad being four or more times that of the thin-film interconnection line.
    Type: Application
    Filed: March 22, 2005
    Publication date: August 4, 2005
    Inventors: Yutaka Onozuka, Mitsuo Nakajima, Yujiro Hara, Tsuyoshi Hioki, Masahiko Akiyama
  • Publication number: 20050106768
    Abstract: In an active matrix substrate, the substrate includes a pixel region and a peripheral region surrounding the pixel region. A plurality of adhesive layers arranged to form a matrix having rows and columns are arranged in the pixel region, and pluralities of active elements are formed, respectively, on the plural adhesive layers. A spacer layer is formed in the peripheral region, and a uniform pressure is applied between the active element and the adhesive layer in performing the transfer.
    Type: Application
    Filed: September 23, 2004
    Publication date: May 19, 2005
    Inventors: Yutaka Onozuka, Masahiko Akiyama, Yujiro Hara, Kentaro Miura
  • Publication number: 20050094071
    Abstract: A display device comprises a first plastic substrate, a first adhesion layer formed in a first region of the first plastic substrate, the first region being a region where a pixel region is to be formed thereon, a second adhesion layer formed in a peripheral region outside of the first region of the first plastic substrate, a first thin glass layer formed on the first and second adhesion layers, a plurality of active elements formed on the first thin glass layer in one-to-one relation with a plurality of pixels, a display part formed on the first thin glass layer, the display part corresponding to the pixel region and being driven by the plurality of active elements, and an opposing substrate formed over the display part.
    Type: Application
    Filed: November 19, 2004
    Publication date: May 5, 2005
    Inventors: Masahiko Akiyama, Mitsuo Nakajima, Tsuyoshi Hioki, Yujiro Hara, Yutaka Onozuka
  • Publication number: 20050088595
    Abstract: A display device comprises a first plastic substrate, a first adhesion layer formed in a first region of the first plastic substrate, the first region being a region where a pixel region is to be formed thereon, a second adhesion layer formed in a peripheral region outside of the first region of the first plastic substrate, a first thin glass layer formed on the first and second adhesion layers, a plurality of active elements formed on the first thin glass layer in one-to-one relation with a plurality of pixels, a display part formed on the first thin glass layer, the display part corresponding to the pixel region and being driven by the plurality of active elements, and an opposing substrate formed over the display part.
    Type: Application
    Filed: November 19, 2004
    Publication date: April 28, 2005
    Inventors: Masahiko Akiyama, Mitsuo Nakajima, Tsuyoshi Hioki, Yujiro Hara, Yutaka Onozuka
  • Patent number: 6885030
    Abstract: An active matrix substrate comprises a substrate, a thick-film adhesive pad made of organic resin, provided on the substrate and including, at least at a part of a side face thereof, an inclined region having a first contact angle smaller than 90 degrees to the main face of the substrate, a thin-film active element provided on the thick-film adhesive pad, and a thin-film interconnection line connected to the thin-film active element and extending onto the substrate via the inclined region, a film thickness of the thick-film adhesive pad being four or more times that of the thin-film interconnection line.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: April 26, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Onozuka, Mitsuo Nakajima, Yujiro Hara, Tsuyoshi Hioki, Masahiko Akiyama
  • Patent number: 6831727
    Abstract: A display device comprises a first plastic substrate, a first adhesion layer formed in a first region of the first plastic substrate, the first region being a region where a pixel region is to be formed thereon, a second adhesion layer formed in a peripheral region outside of the first region of the first plastic substrate, a first thin glass layer formed on the first and second adhesion layers, a plurality of active elements formed on the first thin glass layer in one-to-one relation with a plurality of pixels, a display part formed on the first thin glass layer, the display part corresponding to the pixel region and being driven by the plurality of active elements, and an opposing substrate formed over the display part.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: December 14, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Akiyama, Mitsuo Nakajima, Tsuyoshi Hioki, Yujiro Hara, Yutaka Onozuka
  • Patent number: 6828657
    Abstract: An active matrix substrate comprises a substrate, a position control member provided on the substrate and surrounding a specific space by a sidewall thereof to expose a surface of the substrate and whose inner side face inclines at a specific angle with respect to the substrate, an active element provided so as to engage with the inner side face of the position control member and whose outer side face has at least a part that inclines at substantially the same angle as the specific angle of the inner side face of the position control member with respect to the substrate, and an adhesion section which bonds the active element to the substrate or the position control member and whose wettability with the position control member is lower than that of the adhesive with the substrate.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: December 7, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yujiro Hara, Masahiko Akiyama, Yutaka Onozuka, Tsuyoshi Hioki, Mitsuo Nakajima
  • Patent number: 6806918
    Abstract: A method of manufacturing an active matrix substrate comprises forming a plurality of elements on an element formation substrate, forming wirings on a final substrate, transferring some elements selected from the elements, and selectively connecting some elements to the wirings on the final substrate. According to this method, it is possible to manufacture an active matrix substrate providing a high definition image on a large substrate or a non-glass substrate, at a low cost.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: October 19, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masahiko Akiyama
  • Publication number: 20040201789
    Abstract: A method of manufacturing an active matrix substrate comprises forming a plurality of elements on an element formation substrate, forming wirings on a final substrate, transferring some elements selected from the elements, and selectively connecting some elements to the wirings on the final substrate. According to this method, it is possible to manufacture an active matrix substrate providing a high definition image on a large substrate or a non-glass substrate, at a low cost.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 14, 2004
    Inventor: Masahiko Akiyama
  • Publication number: 20040183958
    Abstract: A display device disclosed herein comprises: a display part including a first thin plate having flexibility and a second thin plate having flexibility, the second thin plate being provided on the first thin plate; a fixing portion which fixes the first thin plate and the second thin plate together on a first direction within each main surface of the first and second thin plates; and a close contact member which is provided in a second direction perpendicular to the first direction within the main surface, and which brings the first thin plate and the second thin plate into close contact.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 23, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiko Akiyama, Masao Tanaka, Yujiro Hara, Rieko Fukushima
  • Publication number: 20030227584
    Abstract: An active matrix substrate comprises a substrate, a thick-film adhesive pad made of organic resin, provided on the substrate and including, at least at a part of a side face thereof, an inclined region having a first contact angle smaller than 90 degrees to the main face of the substrate, a thin-film active element provided on the thick-film adhesive pad, and a thin-film interconnection line connected to the thin-film active element and extending onto the substrate via the inclined region, a film thickness of the thick-film adhesive pad being four or more times that of the thin-film interconnection line.
    Type: Application
    Filed: March 21, 2003
    Publication date: December 11, 2003
    Inventors: Yutaka Onozuka, Mitsuo Nakajima, Yujiro Hara, Tsuyoshi Hioki, Masahiko Akiyama
  • Publication number: 20030227441
    Abstract: A display input device comprises a display unit having a flexibility; and a first form change detection unit having a flexibility. The first form change detection unit is able to detect a deformation ascribed to the flexibility as a change in a electrical property. A display input system further comprises a display driving unit that supplies a display signal to the display unit and a signal judging unit that judges a input data based on the change in a electrical property in the first form change detection unit. The input of a first data can be performed by adding the deformation to the display input device.
    Type: Application
    Filed: March 31, 2003
    Publication date: December 11, 2003
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tsuyoshi Hioki, Masahiko Akiyama, Kenichi Kameyama, Kazuki Taira, Isao Mihara
  • Publication number: 20030213956
    Abstract: A method of manufacturing an active matrix type display device, which is reliable and flexible, is provided. An active matrix type display device according to an aspect of the present invention includes: a first substrate, which is flexible; a thin glass layer provided on the first substrate via an adhesion layer, and having projections and depressions on a surface thereof opposing to the first substrate, the projections and depressions having rounded tips and bottoms; active elements provided on the thin glass layer, each active element corresponding to a pixel; a display provided above the thin glass layer, and driven by the active elements to display an image pixel by pixel; and a second substrate provided on the display, and having an opposing electrode formed thereon.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 20, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi Hioki, Masahiko Akiyama, Mitsuo Nakajima, Yujiro Hara, Yutaka Onozuka
  • Publication number: 20030184704
    Abstract: A display device comprises a first plastic substrate, a first adhesion layer formed in a first region of the first plastic substrate, the first region being a region where a pixel region is to be formed thereon, a second adhesion layer formed in a peripheral region outside of the first region of the first plastic substrate, a first thin glass layer formed on the first and second adhesion layers, a plurality of active elements formed on the first thin glass layer in one-to-one relation with a plurality of pixels, a display part formed on the first thin glass layer, the display part corresponding to the pixel region and being driven by the plurality of active elements, and an opposing substrate formed over the display part.
    Type: Application
    Filed: March 17, 2003
    Publication date: October 2, 2003
    Inventors: Masahiko Akiyama, Mitsuo Nakajima, Tsuyoshi Hioki, Yujiro Hara, Yutaka Onozuka
  • Patent number: 6600472
    Abstract: In this invention, as a basic structure, an impedance element is connected in series to a liquid crystal layer (liquid crystal capacitance) of each pixel. The impedance of the impedance element is varied in accordance with a display signal. The resistance values of variable resistance elements are varied in accordance with a display signal being held by a display signal holding means that is provided in each pixel, whereby the impedance of the impedance element varies in accordance with the resistance states of the variable resistance elements. If an AC voltage is applied across the basic structure, an AC voltage produced by voltage division in accordance with the impedance of the impedance element is applied to the liquid crystal layer. Therefore, the AC voltage applied to the liquid crystal layer and hence the gradation level of the liquid crystal layer can be controlled by adjusting the impedance of the impedance element in accordance with a display signal.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: July 29, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Nakai, Masahiko Akiyama
  • Publication number: 20030094619
    Abstract: A method of manufacturing an active matrix substrate comprises forming a plurality of elements on an element formation substrate, forming wirings on a final substrate, transferring some elements selected from the elements, and selectively connecting some elements to the wirings on the final substrate. According to this method, it is possible to manufacture an active matrix substrate providing a high definition image on a large substrate or a non-glass substrate, at a low cost.
    Type: Application
    Filed: January 2, 2003
    Publication date: May 22, 2003
    Inventor: Masahiko Akiyama
  • Patent number: 6559905
    Abstract: A method of manufacturing an active matrix substrate comprises forming a plurality of elements on an element formation substrate, forming wirings on a final substrate, transferring some elements selected from the elements, and selectively connecting some elements to the wirings on the final substrate. According to this method, it is possible to manufacture an active matrix substrate providing a high definition image on a large substrate or a non-glass substrate, at a low cost.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: May 6, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masahiko Akiyama
  • Publication number: 20030010970
    Abstract: An active matrix substrate comprises a substrate, a position control member provided on the substrate and surrounding a specific space by a sidewall thereof to expose a surface of the substrate and whose inner side face inclines at a specific angle with respect to the substrate, an active element provided so as to engage with the inner side face of the position control member and whose outer side face has at least a part that inclines at substantially the same angle as the specific angle of the inner side face of the position control member with respect to the substrate, and an adhesion section which bonds the active element to the substrate or the position control member and whose wettability with the position control member is lower than that of the adhesive with the substrate.
    Type: Application
    Filed: July 9, 2002
    Publication date: January 16, 2003
    Inventors: Yujiro Hara, Masahiko Akiyama, Yutaka Onozuka, Tsuyoshi Hioki, Mitsuo Nakajima