Patents by Inventor Shigeaki Nimura

Shigeaki Nimura 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: 20190204614
    Abstract: An optical laminate includes a cholesteric liquid crystal layer and a lenticular lens which is laminated on the cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a plurality of regions which are arranged in a pattern in an arrangement direction of lenses of the lenticular lens and are different from each other in terms of the reflection center wavelength for front incident light, and among the plurality of regions, a region having the shortest reflection center wavelength is disposed at a focus position of the lenticular lens for the front incident light, and among the plurality of regions, a region having a longer reflection center wavelength is disposed further away from the focus position.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Yukito SAITOH, Kunihiro ATSUMI, Naoyoshi YAMADA, Daisuke KASHIWAGI, Shigeaki NIMURA, Mitsuyoshi ICHIHASHI, Rie TAKASAGO
  • Publication number: 20190172988
    Abstract: The present invention provides a blue light blocking film including a selective reflection layer, in which the selective reflection layer exhibits selective reflection having a center wavelength in a wavelength range of 450 nm to 500 nm, a half-width of the selective reflection is 20 nm to 45 nm, a light transmittance of the selective reflection layer at the center wavelength is 50% or less, and a light transmittance of the selective reflection layer at any wavelength in a wavelength range of more than 500 nm and 780 nm or less is 60% or more. The blue light blocking film of the present invention has high light transmittance in a visible light range, while effectively blocking blue light, and has a reduced yellowish tint. The blue light blocking film of the present invention is used for light sources and the like, and is capable of effectively blocking blue light.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 6, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Shigeaki NIMURA, Shunya KATOH, Yuki NAKAZAWA, Kazuhiro OKI, Mitsuyoshi ICHIHASHI, Yoshihisa USAMI
  • Publication number: 20190109161
    Abstract: Provided are: a color filter for an image sensor in which an infrared filter having no particulate defects or the like can be laminated adjacent to an image pickup element and in which the total thickness of an image sensor can be significantly reduced; an image sensor including the color filter for an image sensor; and a method of manufacturing the color filter for an image sensor. The color filter for an image sensor includes: two or more absorbing color filters that absorb light components having different wavelength ranges; and a cholesteric reflecting layer in which a right circularly polarized light cholesteric layer having right circularly polarized light reflecting properties and a left circularly polarized light cholesteric layer having left circularly polarized light reflecting properties are laminated.
    Type: Application
    Filed: December 10, 2018
    Publication date: April 11, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Ryoji GOTO, Kazuto SHIMADA, Shigeaki NIMURA
  • Patent number: 10240033
    Abstract: The optical film of the present invention is an optical film including a thermoplastic resin, in which the optical film has a moisture permeability of 70 g/m2/day or less (in terms of a film thickness of 40 ?m), and contains a moisture permeability-reducing compound having a molecular weight of 200 or more and satisfying Formula (1) described below. Formula (1) A/B?0.9 (A represents a moisture permeability of an optical film in a case in which 10 mass % of the moisture permeability-reducing compound is added to the mass of the thermoplastic resin, and B represents a moisture permeability of an optical film in a case in which the thermoplastic resin is included and the moisture permeability-reducing compound is not added.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: March 26, 2019
    Assignee: FUJIFILM CORPORATION
    Inventors: Shigeaki Nimura, Makoto Kamo, Shusuke Arita, Yutaka Nozoe, Katsumi Sasata
  • Publication number: 20190086786
    Abstract: Provided are a projection member in which a change in tint depending on a projection position is suppressed, a projection system, and a method of manufacturing the projection member. A projection member according to an embodiment of the present invention includes a reflecting layer that is obtained by immobilizing a cholesteric liquid crystalline phase, in which a helical pitch of the cholesteric liquid crystalline phase gradually changes in a plane direction of the reflecting layer.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Shunya Katoh, Mitsuyoshi Ichihashi, Shigeaki Nimura
  • Patent number: 9354356
    Abstract: A polymer film that has an in-plane retardation Re(?) and a thickness-direction retardation Rth(?) satisfying formula (i) and (ii), and that further has a surface energy of at least one surface is from 50 mN/m to 80 mN/m: 0?Re(630)?10, and |Rth(630)|?25;??(i) and |Re(400)?Re(700)|?10, and |Rth(400)?Rth(700)|?35.??(ii) in the formulae, Re(?) and Rth(?) are measurement values at the wavelength of ? nm, and an optically-compensatory film, an optical material such as a polarizer and a liquid-crystal display device using the polymer film.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: May 31, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Tadashi Omatsu, Hajime Nakayama, Akihiro Matsufuji, Osamu Takahashi, Shigeaki Nimura, Yousuke Nishiura
  • Patent number: 9110243
    Abstract: Disclosed is a laminate film comprising an inner layer formed of a composition comprising a polymer material as a main component and an outer layer formed of a composition comprising a polymer material as a main component and laminated on at least one surface of the inner layer, wherein a film thickness of the outer layer differs depending upon a position in the width direction of the laminate film.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 18, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Michio Nagai, Shigeaki Nimura, Ryo Nakamura
  • Patent number: 9091804
    Abstract: A polymer film that has an in-plane retardation Re(?) and a thickness-direction retardation Rth(?) satisfying formula (i) and (ii), and that further has a surface energy of at least one surface is from 50 mN/m to 80 mN/m: 0?Re(630)?10, and |Rth(630)|?25; and??(i) |Re(400)?Re(700)|?10, and |Rth(400)?Rth(700)|?35.??(ii) in the formulae, Re(?) and Rth(?) are measurement values at the wavelength of ? nm, and an optically-compensatory film, an optical material such as a polarizer and a liquid-crystal display device using the polymer film.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: July 28, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tadashi Omatsu, Hajime Nakayama, Akihiro Matsufuji, Osamu Takahashi, Shigeaki Nimura, Takako Nishiura
  • Publication number: 20150183977
    Abstract: The optical film of the present invention is an optical film including a thermoplastic resin, in which the optical film has a moisture permeability of 70 g/m2/day or less (in terms of a film thickness of 40 ?m), and contains a moisture permeability-reducing compound having a molecular weight of 200 or more and satisfying Formula (1) described below. Formula (1) A/B?0.9 (A represents a moisture permeability of an optical film in a case in which 10 mass % of the moisture permeability-reducing compound is added to the mass of the thermoplastic resin, and B represents a moisture permeability of an optical film in a case in which the thermoplastic resin is included and the moisture permeability-reducing compound is not added.
    Type: Application
    Filed: March 10, 2015
    Publication date: July 2, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeaki NIMURA, Makoto KAMO, Shusuke ARITA, Yutaka NOZOE, Katsumi SASATA
  • Patent number: 8711480
    Abstract: Provided is a film of which the slow axis in plane does not comply with TD direction nor MD direction of the film and which is excellent in adequacy of pasting with other components. The film is a film comprising at least a first molecule expressing positive intrinsic birefringence and a second molecule expressing negative intrinsic birefringence, having a slow axis in plane in a direction which is neither parallel nor orthogonal to the longitudinal direction of the film, and the direction of the slow axis in plane being neither parallel nor orthogonal to the individual directions of alignment of the first and second molecules.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: April 29, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Shigeaki Nimura
  • Publication number: 20130253182
    Abstract: A polymer film that has an in-plane retardation Re(?) and a thickness-direction retardation Rth(?) satisfying formula (i) and (ii), and that further has a surface energy of at least one surface is from 50 mN/m to 80 mN/m: 0?Re(630)?10, and |Rth(630)|?25;??(i) and |Re(400)?Re(700)|?10, and |Rth(400)?Rth(700)|?35.??(ii) in the formulae, Re(?) and Rth(?) are measurement values at the wavelength of ? nm, and an optically-compensatory film, an optical material such as a polarizer and a liquid-crystal display device using the polymer film.
    Type: Application
    Filed: May 9, 2013
    Publication date: September 26, 2013
    Inventors: Tadashi OMATSU, Hajime Nakayama, Akihiro Matsufuji, Osamu Takahashi, Shigeaki Nimura, Yousuke Nishiura
  • Patent number: 8425991
    Abstract: A cellulose acylate film satisfying the following formulae: 50 nm<Re<400 nm ?200 nm?Rth?50 nm |Nz|?10 wherein Nz represents (Rth/Re)+0.5. The film has an excellent optical compensation performance and a high productivity.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 23, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Shigeaki Nimura, Takako Nishiura
  • Patent number: 8368858
    Abstract: The present invention relates to an optical film produced by stretching a film having a low residual solvent amount in a machine direction followed by heat-treating it at a temperature falling from the glass transition point (Tg) to the melting point (Tm) thereof, which is a cellulose acylate film satisfying the following relations (1) to (6) and containing at least one cellulose acylate and at least one retardation enhancer having an absorption maximum wavelength ?max of from 280 nm to 380 nm: (1) 35 nm?Re(550)?75 nm, (2) 85 nm?Rth(550)?140 nm, (3) 0 nm<?Re(630?450)?40 nm, (4) ?75 nm??Rth(630?450)<0 nm, (5) 2.7?A+B?3.0, and (6) B?0, wherein “A” means a degree of substitution with an acetyl group of said at least one cellulose acylate, and “B” means a degree of substitution with an acyl group having at least 3 carbon atoms thereof.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: February 5, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Yoshiaki Hisakado, Takuya Inoue, Shigeaki Nimura, Yasuyuki Sasada
  • Publication number: 20120262786
    Abstract: Provided is a film of which the slow axis in plane does not comply with TD direction nor MD direction of the film and which is excellent in adequacy of pasting with other components. The film is a long film comprising at least a first molecule expressing positive intrinsic birefringence and a second molecule expressing negative intrinsic birefringence, having a slow axis in plane in a direction which is neither parallel nor orthogonal to the longitudinal direction of the long film, and the direction of the slow axis in plane being neither parallel nor orthogonal to the individual directions of alignment of the first and second molecules.
    Type: Application
    Filed: March 22, 2012
    Publication date: October 18, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Shigeaki NIMURA
  • Publication number: 20120258296
    Abstract: An optical film formed of a cellulose acylate and having a first region and a second region that differ from each other in the birefringence, wherein the angle between the slow axis of the first region and the slow axis of the second region is at least 45 degrees can be produced at a low cost and used for 3D stereoscopic image display.
    Type: Application
    Filed: December 24, 2010
    Publication date: October 11, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Shigeaki Nimura
  • Publication number: 20120251781
    Abstract: Disclosed is a laminate film comprising an inner layer formed of a composition comprising a polymer material as a main component and an outer layer formed of a composition comprising a polymer material as a main component and laminated on at least one surface of the inner layer, wherein a film thickness of the outer layer differs depending upon a position in the width direction of the laminate film.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 4, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Michio NAGAI, Shigeaki NIMURA, Ryo NAKAMURA
  • Publication number: 20120140161
    Abstract: A polymer film, containing a merocyanine compound having ?max of not longer than 375 nm, and a compound represented by formula (II), which is different from said at least one merocyanine compound, is disclosed. In the formula, R1 and R2 each independently represent a hydrogen atom, alkyl group, aryl group, heterocyclic group, cyano, N-alkyl- or N-aryl carbamoyl group, aryloxy carbonyl group or —CH2COOR5, or R1 and R2 bind to each other to form a ring containing a nitrogen atom; R5 represents an alkyl group, aryl group or a heterocyclic group; R3 and R4 each independently represent a substituent having a Hammett substituent constant ?p of equal to or more than 0.2, or R3 and R4 bind to each other to form a cyclic active methylene compound structure.
    Type: Application
    Filed: November 28, 2011
    Publication date: June 7, 2012
    Applicant: FUJIFILM Corporation
    Inventors: Shigeaki NIMURA, Ryo Nakamura, Shunya Katoh, Masayoshi Toyoda, Hiroko Kamee, Masuji Motoki, Masaki Noro, Hiroshi Inada
  • Patent number: 8194210
    Abstract: A polarizing plate protective film is provided and has a transparent substrate that is insoluble in a solvent having a dielectric constant of 10 or more and provided with an easily-adhesive layer and a hard coating layer on at least one side thereof in this order.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: June 5, 2012
    Assignee: Fujifilm Corporation
    Inventors: Takato Suzuki, Shigeaki Nimura, Hiroyuki Yoneyama
  • Patent number: 8184247
    Abstract: An optical compensatory film of a laminated structure comprising a first optically anisotropic layer having an Re(550) of 20 to 100 nm wherein retardation at a wavelength of 550 nm is never 0 nm along any direction and the direction along which the absolute value of retardation at a wavelength of 550 nm reaches minimum does not exist along the normal direction of the layer or on the in-plane of the layer; and a second optically anisotropic layer having an Re(550) of 20 to 150 nm and an Rth(550) of 40 to 110 nm with Re(450) Re(550)<?3 nm and Rth(450)?Rth(550)>3 nm.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 22, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Shigeaki Nimura, Michio Nagai, Hiroko Kamee, Hiroshi Satou, Makoto Ishihara
  • Publication number: 20110311738
    Abstract: A process of producing a cellulose acylate film is disclosed. The process comprises a forming step of forming a web of a fluid, comprising a cellulose acylate, aromatic group-containing oligomer and solvent, by casting the fluid onto a support, a stretching step of stretching the web, thereby to align molecules of the aromatic group-containing oligomer along the stretching direction, and a heat-treatment step of subjecting the stretched web to a heat treatment, thereby to at least increase the alignment degree of molecules of the aromatic group-containing oligomer.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Shigeaki Nimura, Ryo Nakamura, Hiroko Kamee, Kentaro Toyooka, Hiroshi Sato, Megumi Sekiguchi, Yukito Saitoh, Akira Yamamoto, Michio Nagai