Patents by Inventor Toshihiro Otsuki

Toshihiro Otsuki 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: 11226442
    Abstract: An optical filter including a base member having a layer containing near-infrared absorbing fine particles and a dielectric multilayer film, the optical filter satisfying a requirement that, in a wavelength range of 400 nm to 650 nm, an average of transmittance of any of light incident from a direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees, and light obliquely incident at an angle of 60 degrees is 45% or higher and lower than 85%; and a requirement that, in a wavelength range of 800 nm to 1,200 nm, an average of optical density (OD value) of any of light incident from the direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees with respect to the perpendicular direction, and light obliquely incident at an angle of 60 degrees with respect to the perpendicular direction is 1.7 or higher.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: January 18, 2022
    Assignee: JSR Corporation
    Inventors: Katsuya Nagaya, Toshihiro Otsuki, Takashi Tsubouchi
  • Patent number: 10996105
    Abstract: One object of the present disclosure is to show an optical filter capable of realizing both an excellent visible light transmittance and an excellent near-infrared ray-shielding performance even if an incident angle becomes large. The optical filter of the present disclosure has a base material (i) including a light absorbing layer, and transmits visible light, wherein the light absorbing layer has a maximum absorption in a wavelength range of 750 nm to 1,150 nm, and in a wavelength range of 850 nm to 1,050 nm, an average OD value measured in a direction perpendicular to the optical filter is 2.0 or more, and an average OD value measured at an angle of 60° with respect to the direction perpendicular to the optical filter is 2.0 or more.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: May 4, 2021
    Assignee: JSR CORPORATION
    Inventors: Katsuya Nagaya, Toshihiro Otsuki, Daisuke Shigeoka, Takashi Tsubouchi
  • Publication number: 20200278243
    Abstract: One object of the present disclosure is to show an optical filter capable of realizing both an excellent visible light transmittance and an excellent near-infrared ray-shielding performance even if an incident angle becomes large. The optical filter of the present disclosure has a base material (i) including a light absorbing layer, and transmits visible light, wherein the light absorbing layer has a maximum absorption in a wavelength range of 750 nm to 1,150 nm, and in a wavelength range of 850 nm to 1,050 nm, an average OD value measured in a direction perpendicular to the optical filter is 2.0 or more, and an average OD value measured at an angle of 60° with respect to the direction perpendicular to the optical filter is 2.0 or more.
    Type: Application
    Filed: May 14, 2020
    Publication date: September 3, 2020
    Applicant: JSR CORPORATION
    Inventors: Katsuya NAGAYA, Toshihiro OTSUKI, Daisuke SHIGEOKA, TAKASHI TSUBOUCHI
  • Patent number: 10473836
    Abstract: An optical filter including a base member having a layer containing near-infrared absorbing fine particles and a dielectric multilayer film, the optical filter satisfying a requirement that, in a wavelength range of 400 nm to 650 nm, an average of transmittance of any of light incident from a direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees, and light obliquely incident at an angle of 60 degrees is 45% or higher and lower than 85%; and a requirement that, in a wavelength range of 800 nm to 1,200 nm, an average of optical density (OD value) of any of light incident from the direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees with respect to the perpendicular direction, and light obliquely incident at an angle of 60 degrees with respect to the perpendicular direction is 1.7 or higher.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 12, 2019
    Assignee: JSR Corporation
    Inventors: Katsuya Nagaya, Toshihiro Otsuki, Takashi Tsubouchi
  • Publication number: 20190137670
    Abstract: An optical filter including a base member having a layer containing near-infrared absorbing fine particles and a dielectric multilayer film, the optical filter satisfying a requirement that, in a wavelength range of 400 nm to 650 nm, an average of transmittance of any of light incident from a direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees, and light obliquely incident at an angle of 60 degrees is 45% or higher and lower than 85%; and a requirement that, in a wavelength range of 800 nm to 1,200 nm, an average of optical density (OD value) of any of light incident from the direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees with respect to the perpendicular direction, and light obliquely incident at an angle of 60 degrees with respect to the perpendicular direction is 1.7 or higher.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Applicant: JSR Corporation
    Inventors: Katsuya NAGAYA, Toshihiro Otsuki, Takashi TSUBOUCHI
  • Publication number: 20190101672
    Abstract: The object of the present invention is to provide an optical filter which has not only a high visible light transmittance, but also high light cut characteristics in the near-infrared wavelength region, and which is excellent in heat resistance. The optical filter of the present invention comprises a base material comprising a compound (S) having an absorption maximum in the region of 600 to 1150 nm and an antioxidant (P) having at least one phosphorus atom in a molecule, and a dielectric multilayer film formed on at least one surface of the base material.
    Type: Application
    Filed: March 15, 2017
    Publication date: April 4, 2019
    Applicant: JSR CORPORATION
    Inventors: Tatsuya KASAI, Katsuya NAGAYA, Toshihiro OTSUKI
  • Publication number: 20180364095
    Abstract: One object of the present disclosure is to show an optical filter capable of realizing both an excellent visible light transmittance and an excellent near-infrared ray-shielding performance even if an incident angle becomes large. The optical filter of the present disclosure has a base material (i) including a light absorbing layer, and transmits visible light, wherein the light absorbing layer has a maximum absorption in a wavelength range of 750 nm to 1,150 nm, and in a wavelength range of 850 nm to 1,050 nm, an average OD value measured in a direction perpendicular to the optical filter is 2.0 or more, and an average OD value measured at an angle of 60° with respect to the direction perpendicular to the optical filter is 2.0 or more.
    Type: Application
    Filed: November 28, 2016
    Publication date: December 20, 2018
    Applicant: JSR CORPORATION
    Inventors: Katsuya NAGAYA, Toshihiro OTSUKI, Daisuke SHIGEOKA, Takashi TSUBOUCHI
  • Publication number: 20180017721
    Abstract: An optical filter including a base member having a layer containing near-infrared absorbing fine particles and a dielectric multilayer film, the optical filter satisfying a requirement that, in a wavelength range of 400 nm to 650 nm, an average of transmittance of any of light incident from a direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees, and light obliquely incident at an angle of 60 degrees is 45% or higher and lower than 85%; and a requirement that, in a wavelength range of 800 nm to 1,200 nm, an average of optical density (OD value) of any of light incident from the direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees with respect to the perpendicular direction, and light obliquely incident at an angle of 60 degrees with respect to the perpendicular direction is 1.7 or higher.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 18, 2018
    Applicant: JSR Corporation
    Inventors: Katsuya NAGAYA, Toshihiro OTSUKI, Takashi TSUBOUCHI
  • Patent number: 9606275
    Abstract: An optical filter comprises a base material (i) which comprises a transparent resin layer comprising a compound (Z) having an absorption maximum in the wavelength region of from 600 to 850 nm; and a dielectric multilayer film provided on at least one surface of the base material (i). The optical filter selectively transmits visible rays and a part of near-infrared rays, and the optical filter satisfies specific requirements.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: March 28, 2017
    Assignee: JSR CORPORATION
    Inventors: Katsuya Nagaya, Yukie Tanaka, Toshihiro Otsuki, Takashi Tsubouchi, Daisuke Shigeoka
  • Publication number: 20160170105
    Abstract: An optical filter comprises a base material (i) which comprises a transparent resin layer comprising a compound (Z) having an absorption maximum in the wavelength region of from 600 to 850 nm; and a dielectric multilayer film provided on at least one surface of the base material (i). The optical filter selectively transmits visible rays and a part of near-infrared rays, and the optical filter satisfies specific requirements.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Applicant: JSR CORPORATION
    Inventors: Katsuya NAGAYA, Yukie TANAKA, Toshihiro OTSUKI, Takashi TSUBOUCHI, Daisuke SHIGEOKA
  • Patent number: 9057840
    Abstract: An optical filter comprising a substrate and a dielectric multilayer film formed on at least one surface of the substrate, wherein the substrate comprises an aromatic polyether-based polymer having a glass transition temperature (Tg), measured via differential scanning calorimetry (DSC, heating rate: 20° C./min), of from 230 to 350° C.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: June 16, 2015
    Assignee: JSR CORPORATION
    Inventors: Motoki Okaniwa, Takaaki Uno, Shintaro Fujitomi, Takashi Okada, Toshihiro Otsuki, Katsuya Nagaya
  • Publication number: 20130128361
    Abstract: An optical filter comprising a substrate and a dielectric multilayer film formed on at least one surface of the substrate, wherein the substrate comprises an aromatic polyether-based polymer having a glass transition temperature (Tg), measured via differential scanning calorimetry (DSC, heating rate: 20° C./min), of from 230 to 350° C.
    Type: Application
    Filed: July 25, 2011
    Publication date: May 23, 2013
    Applicant: JSR Corporation
    Inventors: Motoki Okaniwa, Takaaki Uno, Shintaro Fujitomi, Takashi Okada, Toshihiro Otsuki, Katsuya Nagaya
  • Patent number: 7449132
    Abstract: The present invention provides a proton conductive membrane having capabilities of self-generating water and maintaining water, excellent ion conductivity and excellent effect of inhibiting crossover and usable for solid polymer electrolyte type fuel cells and also provides a proton conductive composition used for preparing the proton conductive membrane. The proton conductive composition comprises 100 parts by weight of a polyarylene having a sulfonic group and 0.01 to 80 parts by weight of at least one metal catalyst selected from the group consisting of platinum, gold, palladium, rhodium, iridium and ruthenium, or comprises 100 parts by weight of a polyarylene having a sulfonic group, 0.01 to 80 parts by weight of the metal catalyst, and 0.01 to 50 parts by weight of metal oxide fine particles and/or fibers in total.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: November 11, 2008
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Mayumi Kakuta, Toshihiro Otsuki, Nagayuki Kanaoka, Masaaki Nanaumi, Yoichi Asano, Ryoichiro Takahashi
  • Patent number: 7381501
    Abstract: A solid polymer electrolyte includes a polymer having a sulfonic group and shows high proton conductivity in a wide range of temperatures and humidities and is excellent in hot water resistance and chemical stability. A proton conductive membrane is composed of the electrolyte. The polymer electrolyte includes a polymer having a structural unit represented by the following formula (1a) or (1b): wherein A is a divalent electron-withdrawing group, B is a divalent electron-donating group or a direct bond, Ar is an aromatic group, Z is an oxygen or a sulfur atom, X is a hydrogen or a fluorine atom, j is an integer of 1 or greater, k is an integer of from 1 to 4, l is an integer of from 0 to 10, m is an integer of from 1 to 10, and n is an integer of from 1 to 8.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: June 3, 2008
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Toshihiro Otsuki, Nagayuki Kanaoka, Masaru Iguchi, Naoki Mitsuta, Hiroshi Soma
  • Patent number: 7368068
    Abstract: The present invention provides a sulfonic group-containing polyarylene block copolymer superior to the perfluoroalkylsulfonic acid polymers in cost, conductive properties and proccessability, a process for producing the copolymer, a solid polymer electrolyte and a proton conductive membrane. The sulfonic group-containing polyarylene block copolymer includes a polymer segment with an ion conductive component represented by the formula (A) and at least one polymer segment without an ion conductive component represented by the formulae (B-1), (B-3) and the like and containing an aromatic ring bonded at the meta-positions or ortho-positions: wherein X is a single bond, —CO—, —SO2— or the like; W is a single bond, —CO—, —SO2— or the like; Q is a single bond, —O—, —S— or the like; J is a single bond, —CO—, —SO2— or the like; and R1 to R24 are each a hydrogen atom, a fluorine atom, an alkyl group or the like.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: May 6, 2008
    Assignee: JSR Corporation
    Inventors: Takashi Okada, Mayumi Shinoda, Kimihiko Yoshii, Yousuke Konno, Toshihiro Otsuki, Kohei Goto
  • Patent number: 7211203
    Abstract: Disclosed are a polymer electrolyte having improved hot water resistance and radical resistance, a proton conductive membrane comprising the polymer electrolyte, and a membrane-electrode assembly including the proton conductive membrane. The polymer electrolyte comprises at least one polymer selected from polyether, polyketone, polyetherketone, polysulfone, polyethersulfone, polyimide, polyetherimide, polybenzimidazole, polybenzothiazole, polybenzoxazole and the like. The polymer comprises a repeating structural unit with either or both of an aromatic ring and a heterocyclic ring, and a repeating structural unit represented by the formula (1): wherein X is a single bond, an electron-withdrawing group or an electron-donating group; R is a single bond, —(CH2)q— or —(CF2)q— where q ranges from 1 to 10; m is from 0 to 10; k is from 0 to 5; l is from 0 to 4; and k+1?1.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: May 1, 2007
    Assignees: Honda Motor Co., Ltd., JSR Corporation
    Inventors: Toshihiro Otsuki, Nagayuki Kanaoka, Masaru Iguchi, Naoki Mitsuta, Hiroshi Soma
  • Publication number: 20060127728
    Abstract: The present invention provides a membrane-electrode assembly for fuel cell which comprises a solid polymer electrolyte membrane comprising a specific polyarylene having a sulfonic acid group and has excellent creep resistance, power generation performance and durability against power generation under high-temperature environment.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 15, 2006
    Inventors: Toshihiro Otsuki, Nagayuki Kanaoka, Masaru Iguchi, Hiroshi Soma
  • Publication number: 20060043344
    Abstract: The present invention provides a sulfonic group-containing polyarylene block copolymer superior to the perfluoroalkylsulfonic acid polymers in cost, conductive properties and processability, a process for producing the copolymer, a solid polymer electrolyte and a proton conductive membrane. The sulfonic group-containing polyarylene block copolymer includes a polymer segment with an ion conductive component represented by the formula (A) and at least one polymer segment without an ion conductive component represented by the formulae (B-1), (B-3) and the like and containing an aromatic ring bonded at the meta-positions or ortho-positions: wherein X is a single bond, —CO—, —SO2— or the like; W is a single bond, —CO—, —SO2— or the like; Q is a single bond, —O—, —S— or the like; J is a single bond, —CO—, —SO2— or the like; and R1 to R24 are each a hydrogen atom, a fluorine atom, an alkyl group or the like.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 2, 2006
    Applicant: JSR Corporation
    Inventors: Takashi Okada, Mayumi Shinoda, Kimihiko Yoshii, Yousuke Konno, Toshihiro Otsuki, Kohei Goto
  • Publication number: 20050202299
    Abstract: A solid polymer electrolyte includes a polymer having a sulfonic group and shows high proton conductivity in a wide range of temperatures and humidities and is excellent in hot water resistance and chemical stability. A proton conductive membrane is composed of the electrolyte. The polymer electrolyte includes a polymer having a structural unit represented by the following formula (1a) or (1b): wherein A is a divalent electron-withdrawing group, B is a divalent electron-donating group or a direct bond, Ar is an aromatic group, Z is an oxygen or a sulfur atom, X is a hydrogen or a fluorine atom, j is an integer of 1 or greater, k is an integer of from 1 to 4, l is an integer of from 0 to 10, m is an integer of from 1 to 10, and n is an integer of from 1 to 8.
    Type: Application
    Filed: March 9, 2005
    Publication date: September 15, 2005
    Inventors: Toshihiro Otsuki, Nagayuki Kanaoka, Masaru Iguchi, Naoki Mitsuta, Hiroshi Soma
  • Publication number: 20050130024
    Abstract: The invention provides a proton conductive membrane which, even when reduced in thickness, does not allow penetration of an electrode to prevent a short circuit between electrodes and which permits sufficient generating performance. A proton conductive composition capable of forming the membrane is also provided. The proton conductive composition includes a nonconductive filler and a polyarylene having a sulfonic group. The proton conductive membrane, comprising the composition, contains the nonconductive filler in an amount of 3 to 50% by volume, and the nonconductive filler particles have diameters ranging from 3 to 90% the thickness of the membrane.
    Type: Application
    Filed: December 9, 2004
    Publication date: June 16, 2005
    Inventors: Toshihiro Otsuki, Junji Kawai, Mayumi Kakuta, Nagayuki Kanaoka, Yoichi Asano, Ryoichiro Takahashi