Patents by Inventor Nobuaki Yamada

Nobuaki Yamada 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).

  • Publication number: 20100290118
    Abstract: A liquid tank, a viewing device for under-liquid observation, and an optical film are disclosed, each excellent in visibility and durability and being easy to clean. In at least one embodiment of the present invention is directed to a liquid tank having a transparent wall, including, on an internal surface of the wall, a first moth-eye layer having a moth-eye structure, and a protective layer covering the moth-eye structure, in this order from the wall side, and preferably, further including, on an external surface of the wall, a second moth-eye layer having a moth-eye structure, and the second moth-eye layer being disposed in a region facing the first moth-eye layer.
    Type: Application
    Filed: December 1, 2009
    Publication date: November 18, 2010
    Inventor: Nobuaki Yamada
  • Publication number: 20100284087
    Abstract: To provide an optical element having excellent adhesion to a lamination film, a roller nanoimprint apparatus, and a production method of a mold roller are disclosed. In at least one embodiment of the present invention, an optical element includes a nanostructure film including recesses and protrusions in nanometer size formed continuously on a surface of the nanostructure film and a lamination film laminated on the nanostructure film. The nanostructure film includes a nanostructure-free region free from the recesses and protrusions in nanometer size in both ends along a longitudinal direction of the nanostructure film.
    Type: Application
    Filed: November 19, 2008
    Publication date: November 11, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Nobuaki Yamada, Akiyoshi Fujii, Tokio Taguchi, Hidekazu Hayashi
  • Publication number: 20100272845
    Abstract: The present invention provides a roller nanoimprint apparatus capable of preventing a workpiece film with nanostructures having been transferred from the mold roller from being uneven in thickness and allowing easy replacement of the mold roller. The present invention is a roller nanoimprint apparatus including a mold roller and continuously transferring nanosized protrusions to a surface of a workpiece filmby rotating the mold roller, wherein the mold roller is a cylindrical body, having an outer circumference surface with nanosized recesses formed thereon, the roller nanoimprint apparatus further includes a fluid container having an elastic film inflatable by injecting fluid into the container, the fluid container being arranged in a region defined by an inner circumference surface of the mold roller, the mold roller is mounted or demounted when the elastic film is shrunken, and the mold roller is supported from the inside when the elastic film is inflated.
    Type: Application
    Filed: July 1, 2010
    Publication date: October 28, 2010
    Inventors: Nobuaki Yamada, Akiyoshi Fujii, Hidekazu Hayashi, Tokio Taguchi
  • Publication number: 20100258978
    Abstract: A roller nanoimprint apparatus is disclosed which is capable of preventing a workpiece film with nanostructures having been transferred from the mold roller from being uneven in thickness and allowing easy replacement of the mold roller. At least one embodiment of the present invention is directed to a roller nanoimprint apparatus including a mold roller and continuously transferring nanosized protrusions to a surface of a workpiece film by rotating the mold roller, wherein the mold roller is a cylindrical body having an outer circumference surface with nanosized recesses formed thereon, the roller nanoimprint apparatus further includes a fluid container having an elastic film inflatable by injecting fluid into the container, the fluid container being arranged in a region defined by an inner circumference surface of the mold roller, the mold roller is mounted or demounted when the elastic film is shrunken, and the mold roller is supported from the inside when the elastic film is inflated.
    Type: Application
    Filed: November 19, 2008
    Publication date: October 14, 2010
    Inventors: Nobuaki Yamada, Akiyoshi Fujii, Hidekazu Hayashi, Tokio Taguchi
  • Patent number: 7697099
    Abstract: A liquid crystal display device including a first substrate 110a, a second substrate 110b placed to face the first substrate, a liquid crystal layer 120 interposed between the first and second substrates, a first electrode 111 formed on the first substrate, a second electrode 131 formed on the second substrate, an interlayer insulating film 115a placed between the first electrode and the first substrate, and a wall structure 115b formed integrally with the interlayer insulating film. The liquid crystal display device has a plurality of pixels each including the first electrode, the second electrode and the liquid crystal layer interposed between the first and second electrodes. A shading region surrounds each of the plurality of pixels, and the wall structure is placed regularly in the shading region. A groove structure 415a may be formed in place of the wall structure.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: April 13, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Kume, Noriaki Onishi, Kazuhiko Tamai, Nobukazu Nagae, Hiroaki Kojima, Takashi Kurihara, Nobuaki Yamada
  • Patent number: 7640812
    Abstract: A cap is provided on a diaphragm, and a first end of a flexible board is connected to the cap. A cover is attached to the cap. The cover directs a second end of the flexible board in a direction away from the diaphragm held by a joint so that the flexible board is supported while being curved. Since the flexible board is not locally bent at an acute angle, a crack is not generated on a copper pattern provided on the flexible board.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: January 5, 2010
    Assignee: Nagano Keiki Co., Ltd.
    Inventors: Yukinobu Iimori, Nobuaki Yamada, Shuji Tohyama, Takayuki Yokoyama
  • Patent number: 7581448
    Abstract: A pressure sensor is provided with a cap on a measuring portion of a diaphragm to which a first end of a flexible board is connected while a second end of the flexible board is connected to a circuit board spaced apart from the diaphragm. The flexible board is provided with the first end, a belt portion that is bent at an angle of ninety degrees or more relative to the first end in a direction to be away from the circuit board and is curved along the outer circumference of the diaphragm, and the second end that is bent at an angle of ninety degrees or more relative to the belt portion to be connected to the circuit board.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: September 1, 2009
    Assignee: Nagano Keiki Co., Ltd.
    Inventors: Yukinobu Iimori, Nobuaki Yamada, Shuji Tohyama, Takayuki Yokoyama
  • Publication number: 20090096970
    Abstract: The present invention provides a complex birefringent medium, which has the so-called inverse wavelength dispersibility, that is, a wavelength dispersibility capable of giving an optimum phase difference to a light of a wide visible wavelength range, has a wide viewing angle, can be produced by a convenient method and is excellent in a degree of adjusting freedom of inverse wavelength dispersibility and in mass productivity, a polarizing plate and a liquid crystal display device.
    Type: Application
    Filed: June 1, 2007
    Publication date: April 16, 2009
    Inventors: Akira Sakai, Takayuki Natsume, Masahiro Hasegawa, Kazuhiko Tsuda, Nobuaki Yamada
  • Publication number: 20080236290
    Abstract: A cap (16) is provided on a diaphragm (11), and a first end (14A) of a flexible board (14) is connected to the cap (16). A cover (22) is attached to the cap. The cover (22) directs a second end (14B) of the flexible board (14) in a direction away from the diaphragm (11) held by a joint (10) so that the flexible board (14) is supported while being curved. Since the flexible board (14) is not locally bent at an acute angle, a crack is not generated on a copper pattern (14E) provided on the flexible board (14).
    Type: Application
    Filed: March 18, 2008
    Publication date: October 2, 2008
    Applicant: NAGANO KEIKI CO., LTD.
    Inventors: Yukinobu Iimori, Nobuaki Yamada, Shuji Tohyama, Takayuki Yokoyama
  • Publication number: 20080223142
    Abstract: The following abstract will replace all prior versions of the abstract in the application: A pressure sensor is provided with a cap on a measuring portion of a diaphragm to which a first end of a flexible board is connected while a second end of the flexible board is connected to a circuit board spaced apart from the diaphragm. The flexible board is provided with the first end, a belt portion that is bent at an angle of ninety degrees or more relative to the first end in a direction to be away from the circuit board and is curved along the outer circumference of the diaphragm, and the second end that is bent at an angle of ninety degrees or more relative to the belt portion to be connected to the circuit board.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Applicant: NAGANO KEIKI CO., LTD.
    Inventors: Yukinobu Iimori, Nobuaki Yamada, Shuji Tohyama, Takayuki Yokoyama
  • Publication number: 20070113001
    Abstract: The present invention is directed to shorten time required to backup stored information to be erased in a nonvolatile memory. A nonvolatile memory has a plurality of memory mats on which a rewriting operation can be performed on a page unit basis, and a memory control circuit capable of performing a byte access control on the memory mats. The memory control circuit makes a plurality of memory mats operate in the byte access control, at the time of rewriting data, merges data read from a selected page in one memory mat with write byte data, writes the resultant data to a corresponding page selected in the other memory mats and, at the time of reading, reads the data from the valid page which is most recently rewritten selected in the plurality of memory mats. The selected page in one memory mat has substantial backup data which has not been subjected to the rewriting for a selected page in another memory mat.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 17, 2007
    Inventor: Nobuaki Yamada
  • Patent number: 7176060
    Abstract: A multi-function structure of a plug-in universal IC card is to be promoted and the manufacturing cost is to be reduced. The body of the plug-in UICC is constructed of a molding resin. A tape substrate and a chip mounted on one side of the tape substrate are sealed in the interior of the molding resin. A side opposite to the chip mounting side of the tape substrate is exposed to the exterior of the molding resin and constitutes a surface portion of the plug-in UICC. Contact patterns serving as external terminals of the plug-in UICC are formed on the surface of the tape substrate exposed to the exterior of the molding resin. In the plug-in UICC whose body is constructed of molding resin, cracking of the chip can be prevented effectively even in the case where the chip is large-sized.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: February 13, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Nobuaki Yamada, Kazunari Suzuki, Bunshi Kuratomi, Hiroaki Tanaka, Akira Onozawa
  • Publication number: 20050117108
    Abstract: A liquid crystal display device including a first substrate 110a, a second substrate 110b placed to face the first substrate, a liquid crystal layer 120 interposed between the first and second substrates, a first electrode 111 formed on the first substrate, a second electrode 131 formed on the second substrate, an interlayer insulating film 115a placed between the first electrode and the first substrate, and a wall structure 115b formed integrally with the interlayer insulating film. The liquid crystal display device has a plurality of pixels each including the first electrode, the second electrode and the liquid crystal layer interposed between the first and second electrodes. A shading region surrounds each of the plurality of pixels, and the wall structure is placed regularly in the shading region. A groove structure 415a may be formed in place of the wall structure.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 2, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Kume, Noriaki Onishi, Kazuhiko Tamai, Nobukazu Nagae, Hiroaki Kojima, Takashi Kurihara, Nobuaki Yamada
  • Publication number: 20050052851
    Abstract: A multi-function structure of a plug-in universal IC card is to be promoted and the manufacturing cost is to be reduced. The body of the plug-in UICC is constructed of a molding resin. A tape substrate and a chip mounted on one side of the tape substrate are sealed in the interior of the molding resin. A side opposite to the chip mounting side of the tape substrate is exposed to the exterior of the molding resin and constitutes a surface portion of the plug-in UICC. Contact patterns serving as external terminals of the plug-in UICC are formed on the surface of the tape substrate exposed to the exterior of the molding resin. In the plug-in UICC whose body is constructed of molding resin, cracking of the chip can be prevented effectively even in the case where the chip is large-sized.
    Type: Application
    Filed: July 30, 2004
    Publication date: March 10, 2005
    Inventors: Nobuaki Yamada, Kazunari Suzuki, Bunshi Kuratomi, Hiroaki Tanaka, Akira Onozawa
  • Patent number: 6731356
    Abstract: A liquid crystal display device of the present invention includes a pair of substrates and a liquid crystal layer provided between the substrates, wherein liquid crystal molecules in the liquid crystal layer have a negative dielectric anisotropy, and the liquid crystal molecules are aligned in a direction substantially vertical to the substrates when no voltage is being applied and are axis-symmetrically aligned in each of a plurality of pixel regions under application of a voltage.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: May 4, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuaki Yamada, Fumikazu Shimoshikiryo, Yasuhiro Kume, Shuichi Kozaki, Takako Adachi, Shinichi Terashita, Takashi Kurihara
  • Patent number: 6466296
    Abstract: A liquid crystal display device includes a first substrate, a second substrate disposed facing the first substrate, a liquid crystal layer having liquid crystal molecules, interposed between the first and second substrates, and a groove structure having a plurality of grooves provided on the first substrate. The liquid crystal layer includes a plurality of liquid crystal regions defined by the plurality of grooves.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: October 15, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuaki Yamada, Takashi Kurihara
  • Patent number: 6437845
    Abstract: A liquid crystal display device includes a first substrate having a vertical alignment layer provided thereon; a second substrate having a horizontal alignment layer provided thereon; a liquid crystal layer including liquid crystal molecules interposed between the first substrate and the second substrate; and a concave-convex structure for regulating an alignment direction of the liquid crystal molecules and a transparent conductive, layer provided on the concave-convex structure, the concave-convex structure being provided on one of the first substrate and the second substrate with one of the vertical alignment layer and the horizontal alignment layer interposed therebetween. The liquid crystal molecules in the vicinity of the horizontal alignment layer are aligned in an axially symmetrical manner when no voltage is provided, and the liquid crystal molecules in the liquid crystal layer-are aligned substantially vertically relative to the first substrate and the second substrate when a voltage is applied.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: August 20, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuaki Yamada, Yasuhiro Kume
  • Publication number: 20020097362
    Abstract: A liquid crystal display device of the present invention includes a pair of substrates and a liquid crystal layer provided between the substrates, wherein liquid crystal molecules in the liquid crystal layer have a negative dielectric anisotropy, and the liquid crystal molecules are aligned in a direction substantially vertical to the substrates when no voltage is being applied and are axis-symmetrically aligned in each of a plurality of pixel regions under application of a voltage.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 25, 2002
    Applicant: Sharp Kabushiki Kaishi
    Inventors: Nobuaki Yamada, Fumikazu Shimoshikiryo, Yasuhiro Kume, Shuichi Kozaki, Takako Adachi, Shinichi Terashita, Takashi Kurihara
  • Patent number: 6396559
    Abstract: A liquid crystal display device of the present invention includes: a pair of substrates; a liquid crystal layer interposed between the pair of substrates; and a polymer wall formed on one of the pair of substrates. A thickness of the liquid crystal layer is defined by spacer beads to be greater than a height of the polymer wall.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: May 28, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuhiko Kishimoto, Kenji Hamada, Nobuaki Yamada
  • Patent number: RE38288
    Abstract: A display medium layer is sandwiched between a TFT substrate and a counter substrate. In the display medium layer, resin walls are respectively formed in regions other than those where a plurality of segmented electrodes are formed, and liquid crystal portions are respectively formed in regions between the respective resin walls, corresponding to those where the segmented electrodes are formed. Disclination lines are formed on the interfaces between the resin walls and the liquid crystal regions. In a liquid crystal display device, liquid crystal molecules in the liquid crystal regions are radially oriented and at least one liquid crystal domain is formed in each liquid crystal region.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: October 28, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuaki Yamada, Nobukazu Nagae, Noriaki Onishi, Shuichi Kozaki, Masayuki Okamoto, Motohiro Yamahara, Masahiko Kondo, Wataru Horie