Patents by Inventor Akira Yanai

Akira Yanai 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: 10795254
    Abstract: According to the present invention, there is provided a plurality of protruding portions that are formed on one surface of the support and have inclined surfaces parallel to each other; a cholesteric liquid crystal layer that is formed on each of the inclined surfaces of the protruding portions; and an overcoat layer that is laminated on the surface of the support on which the protruding portions are formed so as to cover the cholesteric liquid crystal layer, in which a normal line of each of the inclined surfaces of the protruding portions is parallel to a spiral axis of the cholesteric structure of the cholesteric liquid crystal layer, an angle formed between a normal line of a surface of the overcoat layer and the spiral axis of the cholesteric structure is 5° to 42°, a difference in refractive index between the cholesteric liquid crystal layer and the protruding portion and a difference in refractive index between the cholesteric liquid crystal layer and the overcoat layer are 0.2 or less.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 6, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto, Michio Nagai
  • Patent number: 10718888
    Abstract: Provided is a laminate including a first polarizer, a first patterned optical anisotropic layer, a second patterned optical anisotropic layer, and a second polarizer in this order and an optically anisotropic layer disposed between the second polarizer and the second patterned optical anisotropic layer, in which an angle formed between an absorption axis of the first polarizer and an absorption axis of the second polarizer is 90°±5°; each of the first patterned optical anisotropic layer and the second patterned optical anisotropic layer has a plurality of phase difference regions having different slow axis directions in a plane of the first patterned optical anisotropic layer or the second patterned optical anisotropic layer; a white display state and a black display state are switched with each other; none of the slow axis directions of first phase difference regions and the slow axis directions of second phase difference regions are parallel or orthogonal to the absorption axes and transmission axes of the
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: July 21, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto
  • Patent number: 10663827
    Abstract: An object is to provide: a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The object is achieved by the transparent screen including: a dot array in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and a layer that is obtained by immobilizing a cholesteric liquid crystalline phase.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: May 26, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto, Michio Nagai
  • Patent number: 10642145
    Abstract: Provided are a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The transparent screen includes, in this order: a first ?/4 plate; a reflecting layer that has a structure obtained by immobilizing a cholesteric liquid crystalline phase and reflects a part of incidence light; and a polarizing film that has an absorption axis in a thickness direction.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Akira Yamamoto
  • Patent number: 10642085
    Abstract: Provided is a laminate including first and second patterned polarizers, a patterned optical anisotropic layer disposed between the first and second patterned polarizers, and an optically anisotropic layer disposed between the first patterned polarizer and the patterned optical anisotropic layer; in which an angle formed between an absorption axis of each of polarization regions of the second patterned polarizer and a slow axis of each of phase difference regions of the patterned optical anisotropic layer that is superposed on each of the polarization regions of the second patterned polarizer is 0°±5° or 90°±5°; an absolute value of Rth of the optically anisotropic layer is 50 to 150 nm; at least one of the first or second patterned polarizers is movable; and a white display state and a black display state are switched with each other. Also provided is a window.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto
  • Publication number: 20200012181
    Abstract: The present invention provides a transparent screen which is excellent in transparency and in which a reflection part contour at the time of not displaying an image is unlikely to be recognized. An optical sheet of the present invention includes a substrate; and a cholesteric liquid crystal layer on the substrate, in which the entire cholesteric liquid crystal layer is surrounded by an imaginary contour line, the cholesteric liquid crystal layer has a uniform region and a modulation region that is located between the uniform region and at least a part of the imaginary contour line, a shortest distance between the imaginary contour line and the uniform region is 10 mm or longer, and a reflectance of the modulation region monotonously decreases from the uniform region side toward the imaginary contour line side.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Akira Yamamoto, Hideki Kaneiwa, Yujiro Yanai, Michio Nagai
  • Patent number: 10481311
    Abstract: Provided are a transparent film that allows scenery to be observed without color unevenness in a state where light is not irradiated, a transparent screen and an image display system including the transparent film, and a transparent poster. The transparent film includes: a support; a dot array that is formed on one surface of the support and in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and an overcoat layer that covers the dots and is laminated on the support, in which areas of the dots and distances between the dots are made to be irregular. As a result, the object is achieved.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 19, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Akira Yamamoto
  • Publication number: 20190302603
    Abstract: Provided is an optical film having high contrast and excellent visibility. The optical film includes: a transparent screen; and a transparent reflecting layer that is disposed on one main surface of the transparent screen, in which in the transparent screen, a ratio T15/T30 of a light amount T15 of transmitted light at an angle of 15 degrees with respect to a normal direction of the main surface to a light amount T30 of transmitted light at an angle of 30 degrees with respect to the normal direction of the main surface is 2.0 or higher, and the ratio R15/R30 of the light amount R15 of reflected light at an angle of 15 degrees with respect to the normal direction of the main surface to the light amount R30 of reflected light at an angle of 30 degrees with respect to the normal direction of the main surface is 2.0 or lower.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Akira Yamamoto
  • Patent number: 10386569
    Abstract: Provided is an optical member having a high brightness, a low haze, and a small color change, an optical element, a liquid crystal display device, and a near-to-eye optical member.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: August 20, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Yukito Saitoh, Akira Yamamoto, Nobuhiko Ichihara, Daisuke Kashiwagi, Michio Nagai
  • Publication number: 20190219753
    Abstract: A laminate has a first polarizer, a first patterned optical anisotropic layer, a second patterned optical anisotropic layer, and a second polarizer, in which an angle formed between transmission axes of the polarizers is 90°+5°; each of the patterned optical anisotropic layers has three or more phase difference regions, which have different slow axis directions and in which the slow axis directions continuously change, in a plane of each of the first patterned optical anisotropic layer and the second patterned optical anisotropic layer; a transmission display state and a light-blocking display state are switched with each other by changing an angle formed between the slow axis direction of each of the phase difference regions of the first patterned optical anisotropic layer and the slow axis direction of each of the phase difference regions of the second patterned optical anisotropic layer that is superposed on each of the phase difference regions of the first patterned optical anisotropic layer; a combinatio
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Hideki KANEIWA, Yujiro YANAI, Akira YAMAMOTO
  • Patent number: 10310260
    Abstract: Provided is a member for displaying a projected image, including: a first base material; a second base material; and an optical member, in which at least one optical member is disposed on a surface of the first base material or the second base material, the optical member includes a plurality of cholesteric liquid crystal dots, the cholesteric liquid crystal dot is formed of a liquid crystal material having a cholesteric structure, the cholesteric structure imparts a striped pattern formed of bright portions and dark portions in a cross-sectional image of the cholesteric liquid crystal dot taken by a scanning electron microscope in a direction perpendicular to a substrate, the dot includes a portion where the height thereof successively increases to the maximum height thereof from an end portion toward the center thereof, an angle between a normal line with respect to a line formed by the first dark portion from the surface of the dot on a side opposite to the substrate and a line representing the surface of
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 4, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto, Michio Nagai, Yukito Saitoh, Daisuke Kashiwagi, Nobuhiko Ichihara
  • Patent number: 10295897
    Abstract: A transparent screen includes a substrate capable of transmitting light; and a plurality of dots formed on a surface of the substrate, each of the dots having wavelength-selective reflectivity and being formed of a liquid crystal material having a cholesteric structure, in which the cholesteric structure gives a striped pattern of bright parts and dark parts in a cross-sectional view of the dot observed by scanning electron microscope, the dot includes a portion having a height that increases continuously to the maximum height in a direction extending from the edge toward the center of the dot, and in the portion, the angle formed by the normal line to a line that is formed by a first one of the dark parts as counted from the surface of the dot on the opposite side of the substrate and the surface of the dot is in the range of 70° to 90°.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 21, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Michio Nagai, Yoji Ito, Akira Yamamoto, Yukito Saitoh, Yujiro Yanai, Daisuke Kashiwagi, Nobuhiko Ichihara
  • Patent number: 6620411
    Abstract: A method for inhibiting cell growth is provided. The method includes the step of systemically administering a pharmaceutical preparation containing an interferon as an active ingredient two or more times a day, and is specifically useful for cancer treatment.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: September 16, 2003
    Assignee: Toray Industries, Inc.
    Inventors: Akira Yanai, Saburo Sone, Akemi Kajita
  • Patent number: 6391296
    Abstract: A method of stabilizing a useful protein by mixing a useful protein and an aqueous solution of a compound having the basic structure of arabic acid, and a stabilizied useful protein compositon containing a useful protein and a compound having the basic structure of arabic acid; gum arabic is preferred as a compound having the basic structure of arabic acid, and examples of a useful protein include cytokine and interferon; and a production method for canine interferon-&ggr; and stabilization thereof.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: May 21, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Fumiyoshi Okano, Katsushige Yamada, Masatoshi Watanabe, Naomi Hara, Akira Yanai
  • Patent number: 6365206
    Abstract: Paste-form natto which has a comfortable feeling on the tongue and has little or none of the undesired properties of viscous thread, odor and bitterness of ordinary natto, and a method of producing it in which dried soybeans are dehulled and the kernels sliced to 0.1-5 mm thickness and soaked in 1.0-2.5 times their weight in water, steamed, and lumps of steamed soybean flakes are decomposed during or before seeding with commercial [Bacillus nattol] Bacillus natto. The seeded soybean flakes are fermented aerobically, aged in a chilled room to produce paste-form natto, which had a good feeling on the tongue, does not have the viscous thread, odor and bitterness of ordinary natto. The paste-form natto is packed in plastic or edible containers of any size, chilled or frozen, and shipped to food processing plants. The packed and frozen paste-form natto is not contaminated by micro-organisms and is sanitary.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: April 2, 2002
    Assignee: Aduma Foods Corporation
    Inventors: Akira Yanai, Kumi Chikushi
  • Patent number: 6359616
    Abstract: A coordinate input apparatus for correcting the shift in an input coordinate system between different coordinate input apparatuses relative to an opening of each apparatus. A data processing block captures information from a coordinate detector PD to determine whether a tapping operation has been performed and determine whether the finger is being slid on a sensor board. A data analyzing block compares inputted absolute coordinates (X, y) with minimum coordinate values (Xmin, Ymin) and maximum coordinate values (Xmax, Ymax) indicative of a preset effective pointing area on the sensor board. A control block controls the data analyzing block to transfer replaced minimum coordinate values (Xmin, Ymin), maximum coordinate values (Xmax, Ymax) and the values of absolute coordinates (X, Y) to a data correcting block. Based on these minimum coordinate values (Xmin, Ymin) and maximum coordinate values (Xmax, Ymax), the data correcting block transforms the absolute coordinates (X, Y) into display coordinates.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: March 19, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tsuyoshi Ogura, Harumi Takase, Shoji Suzuki, Yoshiyuki Kikuchi, Akira Yanai
  • Patent number: 5781181
    Abstract: A coordinate detection system capable of displaying relevant coordinates when operated with only one fingertip or like coordinate designator even during a repeat operation of the latter with no complicated designator manipulations required. The system comprises a coordinate detection apparatus and a coordinate output apparatus. The coordinate detection apparatus includes a sensor substrate to be operated by the coordinate designator, scan driving output units for generating a detection signal in response to the coordinate designator operation, and signal processing units for extracting tap and slide component data from the detection signal and supplying the extracted data to the coordinate output apparatus.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: July 14, 1998
    Assignee: Alps Electric Co., Ltd.
    Inventors: Akira Yanai, Osamu Hara, Tsuyoshi Ogura
  • Patent number: 5714382
    Abstract: A synthetic plasmid in which DNA encoding protein of a feline interferon is integrated, a transformant obtainable by the transformation of a host cell by the use of the synthetic plasmid and a feline interferon having a biological activity given by a protein carrying a specific amino acid sequence, a feline interferon gene encoding the feline interferon, a feline interferon precursor comprised of a cleavable peptide or a signal peptide being linked to the N terminal of the feline interferon, a feline interferon precursor gene encoding the feline interferon precursor and a method for producing the feline interferon, which are applied to the mass production of a feline interferon to be used as a remedy for feline viral disease and tumor.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 3, 1998
    Assignee: Toray Industries, Ltd.
    Inventors: Akira Yanai, Naoko Nakamura, Susumu Matsuda
  • Patent number: 5508291
    Abstract: Purified feline interferon polypeptides are disclosed. A synthetic plasmid in which DNA encoding protein of a feline interferon is integrated, a transformant obtainable by the transformation of a host cell by the use of the synthetic plasmid and a feline interferon having a biological activity given by a protein carrying a specific amino acid sequence, a feline interferon gene encoding the feline interferon, a feline interferon precursor comprised of a cleavable peptide or a signal peptide being linked to the N terminal of the feline interferon, a feline interferon precursor gene encoding the feline interferon precursor and a method for producing the feline interferon, which are applied to the mass production of a feline interferon to be used as a remedy for feline vital disease and tumor.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: April 16, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Akira Yanai, Naoko Nakamura, Susumu Matsuda
  • Patent number: 5480956
    Abstract: A recombinant silkworm nuclear polyhedrosis virus containing DNA coding for a protein of feline interferon; the recombinant virus is constructed by cotransfection a recombinant plasmid having a gene coding for a protein of feline interferon and a silkworm nuclear polyhedrosis virus DNA into established silkworm cells, and cloning the desired recombinant virus. The recombinant virus is useful for a mass-production of feline interferon.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: January 2, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Akira Yanai, Yoshizumi Ueda, Toru Sakurai, Masahiro Satoh