Patents by Inventor Tadao Hayashi
Tadao Hayashi 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).
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Publication number: 20240117077Abstract: A composition containing polytetrafluoroethylene and substantially free from a compound represented by Formula (3): (H—(CF2)8—SO3)qM2 wherein M2 is H, a metal atom, NR54 (where R5s may be the same as or different from each other and are each H or an organic group having 1 to 10 carbon atoms), an imidazolium optionally having a substituent, a pyridinium optionally having a substituent, or a phosphonium optionally having a substituent, and q is 1 or 2. Also disclosed is a molded boy including the composition.Type: ApplicationFiled: November 7, 2023Publication date: April 11, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro TAIRA, Kazuhiro MISHIMA, Chiaki OKUI, Tadao HAYASHI, Hirotoshi YOSHIDA, Yuuji TANAKA, Masayoshi MIYAMOTO, Taku YAMANAKA, Taketo KATO
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Patent number: 11894497Abstract: A method of manufacturing a covering member includes: providing a first light-reflective member comprising a through-hole, the through-hole having first and second openings; arranging a light-transmissive resin containing a wavelength-conversion material within the through-hole; distributing the wavelength-conversion material predominantly on a side of the first opening of the through-hole within the light-transmissive resin; and after the step of distributing the wavelength-conversion material, removing a portion of the light-transmissive resin from a side of the second opening of the through-hole.Type: GrantFiled: September 28, 2020Date of Patent: February 6, 2024Assignee: NICHIA CORPORATIONInventors: Tadao Hayashi, Teruhito Azuma, Suguru Beppu, Kunihiro Izuno, Tsuyoshi Okahisa
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Patent number: 11851519Abstract: A method for producing an aqueous dispersion of purified polytetrafluoroethylene, the method including: removing or reducing a compound represented by Formula (1) or (2) below from an aqueous dispersion of polytetrafluoroethylene obtained using a hydrocarbon surfactant: (H—(CF2)m—COO)pM1; or??Formula (1): (H—(CF2)n—SO3)qM2.??Formula (2): Also disclosed is a composition containing polytetrafluoroethylene substantially free from a compound represented by Formula (3) below and a molded body including the composition: (H—(CF2)8—SO3)qM2.Type: GrantFiled: August 10, 2018Date of Patent: December 26, 2023Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro Taira, Kazuhiro Mishima, Chiaki Okui, Tadao Hayashi, Hirotoshi Yoshida, Yuuji Tanaka, Masayoshi Miyamoto, Taku Yamanaka, Taketo Kato
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Publication number: 20230221485Abstract: A light emitting module includes a light guide plate including a first face, a second face opposing the first face, and a through part penetrating between the first face and the second face, a light emitting device disposed in the through part on a second face side, a light transmissive member disposed on the light emitting device in the through hole on a first face side and between the light emitting device and a lateral wall of the through part, and a first light reflecting member disposed between an upper face of the light emitting device and the light transmissive member while being in contact with the upper face of the light emitting device.Type: ApplicationFiled: March 22, 2023Publication date: July 13, 2023Applicant: NICHIA CORPORATIONInventor: Tadao HAYASHI
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Patent number: 11688838Abstract: A method of manufacturing a light emitting device includes: providing two light emitting elements disposed on a first surface of a light transmissive member; disposing a light guide member covering a part of the first surface of the light transmissive member, and lateral surfaces of the two light emitting elements; disposing a light reflective member covering the two light emitting elements, a second surface of the light transmissive member, and the light guide member, the second surface of the light transmissive member being opposite to the first surface; and cutting the light reflective member and/or the light transmissive member between the two light emitting elements.Type: GrantFiled: March 12, 2021Date of Patent: June 27, 2023Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Patent number: 11681090Abstract: A light emitting module includes a light guide plate including a first face, a second face opposing the first face, and a through part penetrating between the first face and the second face, a light emitting device disposed in the through part on a second face side, a light transmissive member disposed on the light emitting device in the through hole on a first face side and between the light emitting device and a lateral wall of the through part, and a first light reflecting member disposed between an upper face of the light emitting device and the light transmissive member while being in contact with the upper face of the light emitting device.Type: GrantFiled: May 27, 2020Date of Patent: June 20, 2023Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Publication number: 20220324733Abstract: A water treatment method including a removal step of removing a polymer (I) containing a polymerization unit (I) based on a monomer represented by the following general formula (I) from water containing the polymer (I): CX1X3?CX2R(—CZ1Z2-A0)m??(I) wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more. Further, the number average molecular weight of the polymer (I) to 0.3×104 or more. Also disclosed is a composition including the polymer (I) containing the polymerization unit (I) based on a monomer represented by general formula (I), and where the composition has a content of the polymer (I) of 250 ppm or less.Type: ApplicationFiled: April 27, 2020Publication date: October 13, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro TAIRA, Tadao HAYASHI, Nobuo FUKITA, Hirotoshi YOSHIDA
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Publication number: 20220251251Abstract: A method for producing a purified fluoropolymer aqueous dispersion, which includes: (A) bringing a fluoropolymer aqueous dispersion obtained using a hydrocarbon surfactant into contact with an anion exchange resin A or a synthetic adsorbent. The anion exchange resin A has an ion-exchange group represented by the following general formula (A1): —N+R1R2R3X— wherein each of R1, R2, and R3 are the same or different, and are each a hydrogen atom or an organic group, and at least one of R1, R2, and R3 is an organic group having 3 or more carbon atoms; and X is a counter ion; or an ion-exchange group represented by the following general formula (A2): —NR4R5 wherein each of R4 and R5 are the same or different, and are each a hydrogen atom or an organic group, and at least one of R4 and R5 is an organic group having 2 or more carbon atoms.Type: ApplicationFiled: April 27, 2020Publication date: August 11, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadao HAYASHI, Takahiro TAIRA, Hirotoshi YOSHIDA, Chiaki OKUI, Taku YAMANAKA, Taketo KATO
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Patent number: 11342314Abstract: A light-emitting module includes a light-emitting element unit including a light-emitting element, a light-transmissive member covering a main light-emitting surface of the light-emitting element, and a first light-reflective member covering lateral surfaces of the light-emitting element; a light-transmissive light-guiding plate having a first main surface and a second main surface having a recess accommodating the light-emitting element unit; a second light-reflective member covering the second main surface and the light-emitting element unit; and a light-transmissive bonding member disposed in contact with inner lateral surfaces of the recess and outer lateral surfaces of the light-emitting element unit. At least a portion of the first light-reflective member is located outside the recess in a cross-sectional view, and is in contact with the light-transmissive bonding member.Type: GrantFiled: January 19, 2021Date of Patent: May 24, 2022Assignee: NICHIA CORPORATIONInventors: Daisuke Kasai, Tadao Hayashi, Toru Hashimoto
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Patent number: 11329203Abstract: A light emitting device includes: a light emitting element comprising: a semiconductor multilayer structure that has an electrode formation surface, a light-emitting surface opposite to the electrode formation surface, and side surfaces between the electrode formation surface and the light-emitting surface, and a pair of electrodes provided on the electrode formation surface; a covering member covering the side surfaces of the light emitting element; and an optical member disposed over the light-emitting surface of the light emitting element and an upper surface of the covering member, the optical member comprising: a light-reflective portion disposed above the light emitting element, and a light-transmissive portion disposed between the light-reflective portion and the covering member and forming a part of an outer side surface of the light emitting device.Type: GrantFiled: June 28, 2018Date of Patent: May 10, 2022Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Patent number: 11322664Abstract: A method of manufacturing a light emitting device includes: providing a light emitting element including a light extraction surface, an electrode-formed surface on a side opposite to the light extraction surface, lateral surfaces positioned between the light extraction surface and the electrode-formed surface, and a pair of electrodes on the electrode-formed surface; providing a covering member including a lens portion and a first recess on a side different from the lens portion; disposing the light emitting element on a bottom surface of the first recess, with the light extraction surface and the bottom surface of the first recess facing each other; and forming a reflective member in the first recess to cover the lateral surfaces of the light emitting element while at least a part of the pair of electrodes is exposed from the reflective member.Type: GrantFiled: December 11, 2020Date of Patent: May 3, 2022Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Patent number: 11269215Abstract: A light emitting module with a reduced thickness is provided. A method of manufacturing a light emitting module sequentially includes: providing a light guiding plate having a first main surface being a light emitting surface, and a second main surface on the side opposite to the first main surface; providing a plurality of light emitting elements on the light guiding plate; and forming a wiring electrically connecting the plurality of light emitting elements. A light emitting module includes: a light guiding plate having a first main surface and a second main surface; a plurality of wavelength conversion parts disposed at the second main surface of the light guiding plate so as to be spaced apart from each other; a plurality of light emitting elements respectively bonded to the plurality of wavelength conversion parts; and a wiring connected to the plurality of light emitting elements.Type: GrantFiled: November 6, 2020Date of Patent: March 8, 2022Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Patent number: 11201271Abstract: A method for manufacturing a light emitting device includes: forming a first reflector that covers outer peripheral faces of a light transmissive member; forming a light guiding member covering at least a portion of the light transmissive member, a portion of a lower face of the first reflector, and at least some portions of lateral faces of a light emitting element disposed under the light transmissive member; and forming a second reflector covering a portion of the lower face of the first reflector that is exposed from the light guiding member and located outward of the light guiding member.Type: GrantFiled: February 3, 2020Date of Patent: December 14, 2021Assignee: NICHIA CORPORATIONInventors: Tadao Hayashi, Teruhito Azuma
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Publication number: 20210363031Abstract: A method for removing a fluorine-containing compound from discharge water, which includes bringing discharge water containing two or more fluorine-containing compounds represented by the following general formula (1) or (2) into contact with an adsorbent so as to adsorb the two or more fluorine-containing compounds: (H—(CF2)m—COO)pM1??General Formula (1): wherein m is 3 to 19, M1 is H, a metal atom, NRb4, where Rb is the same or different and is H or an organic group having 1 to 10 carbon atoms, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and p is 1 or 2; (H—(CF2)n—SO3)qM2??General Formula (2): wherein n is 4 to 20; M2 is H, a metal atom, NRb4, where Rb is the same as above, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and q is 1 or 2.Type: ApplicationFiled: October 3, 2019Publication date: November 25, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro TAIRA, Tadao HAYASHI, Chiaki OKUI, Ryou HATAYAMA, Michinobu KOIZUMI, Taketo KATO, Yuuji TANAKA, Hirotoshi YOSHIDA
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Patent number: 11143807Abstract: A method of manufacturing a light emitting module according to the present disclosure includes: preparing a light guide plate that comprises a first main surface serving as a light-emitting surface and a second main surface opposite to the first main surface; respectively providing light emitting elements on the second main surface so as to correspond to each of a plurality of optically functional portions provided on the first main surface of the light guide plate; and forming wires electrically connecting the plurality of light emitting elements.Type: GrantFiled: July 29, 2020Date of Patent: October 12, 2021Assignee: NICHIA CORPORATIONInventors: Tadao Hayashi, Ryohei Yamashita, Yusaku Achi, Mamoru Imada
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Publication number: 20210202808Abstract: A method of manufacturing a light emitting device includes: providing two light emitting elements disposed on a first surface of a light transmissive member; disposing a light guide member covering a part of the first surface of the light transmissive member, and lateral surfaces of the two light emitting elements; disposing a light reflective member covering the two light emitting elements, a second surface of the light transmissive member, and the light guide member, the second surface of the light transmissive member being opposite to the first surface; and cutting the light reflective member and/or the light transmissive member between the two light emitting elements.Type: ApplicationFiled: March 12, 2021Publication date: July 1, 2021Inventor: Tadao HAYASHI
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Publication number: 20210167048Abstract: A light-emitting module includes a light-emitting element unit including a light-emitting element, a light-transmissive member covering a main light-emitting surface of the light-emitting element, and a first light-reflective member covering lateral surfaces of the light-emitting element; a light-transmissive light-guiding plate having a first main surface and a second main surface having a recess accommodating the light-emitting element unit; a second light-reflective member covering the second main surface and the light-emitting element unit; and a light-transmissive bonding member disposed in contact with inner lateral surfaces of the recess and outer lateral surfaces of the light-emitting element unit. At least a portion of the first light-reflective member is located outside the recess in a cross-sectional view, and is in contact with the light-transmissive bonding member.Type: ApplicationFiled: January 19, 2021Publication date: June 3, 2021Applicant: NICHIA CORPORATIONInventors: Daisuke KASAI, Tadao HAYASHI, Toru HASHIMOTO
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Patent number: 11022746Abstract: Provided is a linear light source including: a light-transmissive base having a first main surface that has a rectangular shape with long sides and short sides, a second main surface located opposite to the first main surface, a first (long) side surface, and a second (short) side surface; a plurality of light emitting devices, each including a light emitting element, a light-transmissive member and a sealing member. An upper surface of each of the light emitting devices includes an upper surface of the light-transmissive member. A first bonding member bonds the first main surface of the light-transmissive base and the upper surfaces of the light emitting devices. A width of the light-transmissive base is the same as a width of the light emitting devices in a first direction orthogonal to a first side surface of the light-transmissive base.Type: GrantFiled: March 25, 2020Date of Patent: June 1, 2021Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Patent number: 11011682Abstract: A composite board is provided with a board and a covering member. The board includes a base made of ceramics, first wiring provided on an upper surface of the base, and second wiring provided on a lower surface of the base and electrically connected to the first wiring. The covering member covers the base such that the first wiring and the second wiring are exposed.Type: GrantFiled: December 31, 2019Date of Patent: May 18, 2021Assignee: NICHIA CORPORATIONInventor: Tadao Hayashi
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Publication number: 20210135065Abstract: A method of manufacturing a light emitting device includes: providing a light emitting element including a light extraction surface, an electrode-formed surface on a side opposite to the light extraction surface, lateral surfaces positioned between the light extraction surface and the electrode-formed surface, and a pair of electrodes on the electrode-formed surface; providing a covering member including a lens portion and a first recess on a side different from the lens portion; disposing the light emitting element on a bottom surface of the first recess, with the light extraction surface and the bottom surface of the first recess facing each other; and forming a reflective member in the first recess to cover the lateral surfaces of the light emitting element while at least a part of the pair of electrodes is exposed from the reflective member.Type: ApplicationFiled: December 11, 2020Publication date: May 6, 2021Inventor: Tadao HAYASHI