Patents by Inventor Kentaro Ishihara

Kentaro Ishihara 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: 11960056
    Abstract: Provided is an optical lens formed by integrally molding a lens part that is an optically effective portion and has a light incidence/emission surface, and a lens edge part that is an optically ineffective portion and has a surface thereof except the light incidence/emission surface. The lens edge part includes a non-transparent region in part or all thereof, the lens part and the lens edge part include a thermoplastic resin, and the non-transparent region in the lens edge part contains a total of 0.1-5 mass % of one or more of a black dye and a black pigment.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Atsushi Motegi, Kentaro Ishihara, Katsushi Nishimori, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Kensuke Oshima, Masahiro Kanda, Shoko Suzuki, Tatsunobu Ogata, Mitsutake Suematsu
  • Patent number: 11952460
    Abstract: A polycarbonate resin having a high refractive index, a low Abbe number and a high moisture and heat resistance is provided. In an embodiment, a polycarbonate resin including a structural unit represented by general formula (1) below is provided.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: April 9, 2024
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Munenori Shiratake, Kentaro Ishihara, Koji Hirose, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Shoko Suzuki, Kensuke Oshima, Shuya Nagayama
  • Publication number: 20230399510
    Abstract: A thermoplastic resin including a constituent unit (A) derived from a monomer represented by general formula (1). In general formula (1), R1 and R11 each independently represent a hydrogen atom, an aryl group having 6-12 carbon atoms, or a linear or branched alkyl group having 1-4 carbon atoms, and X represents one of general formulas (a) to (d). In general formulas (a) to (d), R21 to R57 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a linear or branched alkyl group having 1-4 carbon atoms, or a linear or branched alkoxy group having 1-7 carbon atoms.
    Type: Application
    Filed: October 25, 2021
    Publication date: December 14, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyuki KATO, Shinya IKEDA, Atsushi MOTEGI, Tatsunobu OGATA, Yutaro HARADA, Katsushi NISHIMORI, Kentaro ISHIHARA
  • Publication number: 20230391704
    Abstract: The present invention relates to triarylmethane compounds of the formula (I), which suitable as monomers for preparing thermoplastic resins having beneficial optical properties and which can be used for producing optical devices. R1 , R2 are e.g. hydrogen; Y is an alkylene group having 2, 3 or 4 carbon atoms, Ar is selected from mono- or polycyclic aryl and mono- or polycyclic hetaryl; X1, X2, X3, X4 are CH, C—Rx or N, provided that in each ring at most two of X1, X2, X3, X4 are N; Rx is e.g. halogen, CN or CH?CH2. The invention also relates to thermoplastic resins comprising a polymerized unit of the compound of formula (I).
    Type: Application
    Filed: August 8, 2023
    Publication date: December 7, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Karl REUTER, Vasyl ANDRUSHKO, Mark KANTOR, Florian STOLZ, Munenori SHIRATAKE, Kentaro ISHIHARA, Koji HIROSE, Shinya IKEDA, Noriyuki KATO, Mitsuteru KONDO, Shoko MURATA, Kensuke OSHIMA
  • Patent number: 11760712
    Abstract: The present invention relates to triarylmethane compounds of the formula (I), which suitable as monomers for preparing thermoplastic resins having beneficial optical properties and which can be used for producing optical devices. R1, R2 are e.g. hydrogen; Y is an alkylene group having 2, 3 or 4 carbon atoms, Ar is selected from mono- or polycyclic aryl and mono- or polycyclic hetaryl; X1, X2, X3, X4 are CH, C—Rx or N, provided that in each ring at most two of X1, X2, X3, X4 are N; Rx is e.g. halogen, CN or CH?CH2. The invention also relates to thermoplastic resins comprising a polymerized unit of the compound of formula (I).
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: September 19, 2023
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Karl Reuter, Vasyl Andrushko, Mark Kantor, Florian Stolz, Munenori Shiratake, Kentaro Ishihara, Koji Hirose, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Shoko Murata, Kensuke Oshima
  • Patent number: 11700469
    Abstract: A microphone includes a tubular case having a bottom surface, a side surface and an opened top, a substrate which is fixed so as to block an opening portion of the opened top of the case, and has an electrode portion on an upper surface thereof, and a side-surface sound hole formed in the side surface of the case.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: July 11, 2023
    Assignee: HOSIDEN CORPORATION
    Inventors: Kazuki Watanabe, Kentaro Ishihara, Ryuji Awamura, Kensuke Nakanishi
  • Patent number: 11648537
    Abstract: A supported catalyst for decomposing an organic substance that includes a carrier and catalyst particles supported on the carrier. The catalyst particles contain a perovskite-type composite oxide represented by AxByMzOw, where A contains at least one of Ba and Sr, B contains Zr, M is at least one of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality. An organic substance decomposition rate after the supported catalyst is subjected to a heat treatment at 950° C. for 48 hours is greater than 0.97 when the organic substance decomposition rate before the heat treatment is regarded as 1, and an amount of the catalyst particles peeled off when the supported catalyst is ultrasonicated in water at 28 kHz and 220 W for 15 minutes is less than 1 wt % of the catalyst particles before untrasonication.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 16, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Kuretake, Nario Sugahara, Kentaro Ishihara
  • Patent number: 11642661
    Abstract: A supported catalyst for decomposing an organic substance that includes a support and a catalyst particle supported on the support. The catalyst particle contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni and Fe, y+z=1, x?0.995, z?0.4, and w is a positive value satisfying electrical neutrality. A film thickness of a catalyst-supporting film supported on the support and containing the catalyst particle is 5 ?m or more, or a supported amount as determined by normalizing a mass of the catalyst particle supported on the support by a volume of the support is 45 g/L or more.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 9, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Kuretake, Kentaro Ishihara, Nario Sugahara
  • Patent number: 11571683
    Abstract: A honeycomb-structured catalyst for decomposing an organic substance, which includes a catalyst particle. The catalyst particle contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least of Ba and Sr, the B contains Zr, the M is at least one of Mn, Co, Ni, and Fe, y+z=1, 1.001?x?1.05, 0.05?z?0.2, and w is a positive value that satisfies electrical neutrality. The toluene decomposition rate is greater than 90% when toluene is decomposed using the honeycomb-structured catalyst subjected to a heat treatment at 1200° C. for 48 hours and a gas that contains 50 ppm toluene, 80% nitrogen, and 20% oxygen as a volume concentration as a target at a space velocity of 30,000/h and a catalyst temperature of 400° C.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: February 7, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Naoya Mori, Satoshi Kuretake, Nario Sugahara, Kentaro Ishihara
  • Patent number: 11529613
    Abstract: An organic matter decomposition catalyst that contains a perovskite type complex oxide represented by AxByMzOw, wherein A contains 90 at % or more of at least one element selected from the group consisting of Ba and Sr, B contains 80 at % or more of Zr, M is at least one element selected from the group consisting of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: December 20, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Nario Sugahara, Kentaro Ishihara, Satoshi Kuretake
  • Publication number: 20220380532
    Abstract: A polycarbonate resin having a high refractive index, a low Abbe number and a high moisture and heat resistance is provided. In an embodiment, a polycarbonate resin including a structural unit represented by general formula (1) below is provided.
    Type: Application
    Filed: July 29, 2022
    Publication date: December 1, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Munenori SHIRATAKE, Kentaro ISHIHARA, Koji HIROSE, Shinya IKEDA, Noriyuki KATO, Mitsuteru KONDO, Shoko SUZUKI, Kensuke OSHIMA, Shuya NAGAYAMA
  • Publication number: 20220291647
    Abstract: Respective processing hierarchies of a control program of an electronic control system and a testing program of a testing apparatus are each configured in the same manner; requesting data for each of processing hierarchies of the control program to be executed by the electronic control system is created without making any change in a required communication specification between a transmission direction and a reception direction; requesting data for each of processing hierarchies of the testing program to be executed by the testing apparatus is created while changing a transmission direction of communication requesting data to a reception direction thereof and changing the reception direction to the transmission direction.
    Type: Application
    Filed: August 4, 2021
    Publication date: September 15, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventor: Kentaro ISHIHARA
  • Patent number: 11440991
    Abstract: The present application provides a polycarbonate resin composition which has a high refractive index and a low Abbe number, and high thermal stability. The polycarbonate resin composition according to one embodiment of the present application includes a polycarbonate resin and an antioxidant, wherein the polycarbonate resin contains a constituent unit represented by general formula (1) (in general formula (1), X represents an alkylene group having 1-4 carbon atoms, and a and b each independently represent an integer of 1-10), and the antioxidant content is 1-3000 ppm.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 13, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Munenori Shiratake, Kentaro Ishihara, Koji Hirose, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Shoko Suzuki, Kensuke Oshima, Shuya Nagayama
  • Publication number: 20220282038
    Abstract: A polyester carbonate resin is provided, which includes a structural unit derived from a compound represented by general formula (1), a structural unit derived from a compound represented by general formula (2), a structural unit derived from a dicarboxylic acid or a derivative thereof, and a structural unit derived from a carbonic acid diester. The polyester carbonate can be used, e.g., in optical systems.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 8, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyuki KATO, Hirohito ISHIZUKA, Munenori SHIRATAKE, Kentaro ISHIHARA
  • Patent number: 11434327
    Abstract: A polycarbonate resin having a high refractive index, a low Abbe number and a high moisture and heat resistance is provided. In an embodiment, a polycarbonate resin including a structural unit represented by general formula (1) below is provided.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 6, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Munenori Shiratake, Kentaro Ishihara, Koji Hirose, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Shoko Suzuki, Kensuke Oshima, Shuya Nagayama
  • Publication number: 20220256265
    Abstract: A microphone includes a tubular case having a bottom surface, a side surface and an opened top, a substrate which is fixed so as to block an opening portion of the opened top of the case, and has an electrode portion on an upper surface thereof, and a side-surface sound hole formed in the side surface of the case.
    Type: Application
    Filed: January 27, 2022
    Publication date: August 11, 2022
    Applicant: HOSIDEN CORPORATION
    Inventors: Kazuki WATANABE, Kentaro ISHIHARA, Ryuji AWAMURA, Kensuke NAKANISHI
  • Patent number: 11383226
    Abstract: A catalyst for decomposing an organic substance, the catalyst having a body which has a plurality of pores and the body contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni, and Fe, 1.001?x?1.1, 0.05?z?0.2, y+z=1, and w is a positive value that satisfies electrical neutrality. The average pore diameter of the plurality of pores is 49 nm to 260 nm and the pore volume of each of the plurality of pores is 0.08 cm3/g to 0.37 cm3/g.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: July 12, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kentaro Ishihara, Nario Sugahara, Satoshi Kuretake, Naoya Mori, Hideto Sato
  • Patent number: 11370882
    Abstract: A polyester carbonate resin is provided, which includes a structural unit derived from a compound represented by general formula (1), a structural unit derived from a compound represented by general formula (2), a structural unit derived from a dicarboxylic acid or a derivative thereof, and a structural unit derived from a carbonic acid diester. The polyester carbonate can be used, e.g., in optical systems.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 28, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyuki Kato, Hirohito Ishizuka, Munenori Shiratake, Kentaro Ishihara
  • Publication number: 20220135738
    Abstract: A polycarbonate resin composition having a structural unit represented by formula (1), a structural unit represented by formula (2), and a structural unit represented by formula (3): wherein, in formula (3), R1 to R4 each independently represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group containing 1 to 6 carbon atoms, or an aryl group containing 6 to 20 carbon atoms which may optionally include a heterocyclic atom selected from an oxygen atom, a nitrogen atom and a sulfur atom, an alkenyl group containing 2 to 6 carbon atoms, an alkoxy group containing 1 to 6 carbon atoms or an aralkyl group containing 7 to 17 carbon atoms; p, q, r and s each independently represents an integer of 0 to 4; and i represents an integer of 1 to 10, and ii represents an integer of 0 to 10.
    Type: Application
    Filed: February 6, 2020
    Publication date: May 5, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kentaro ISHIHARA, Katsushi NISHIMORI, Noriyuki KATO, Shoko SUZUKI
  • Patent number: 11306180
    Abstract: Provided are a polycarbonate having an appropriate refractive index and an appropriate Abbe number, and comprehensively excelling in heat resistance, total light transmittance, and hue, and a molded article thereof. The polycarbonate includes a constituent unit represented by Formula [I] and a constituent unit having a hydrocarbon group containing a cyclic structure. In Formula [I], R1 and R2 each independently denote a hydrocarbon group, and each R3 independently denotes a hydrogen atom, a heteroatom-containing group, a halogen atom-containing group, a linear alkyl group having from 1 to 6 carbon atoms, a branched alkyl group having from 3 to 6 carbon atoms, or a group including an aryl group and having from 6 to 12 carbon atoms.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 19, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Munenori Shiratake, Kentaro Ishihara, Koji Hirose, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Shoko Suzuki, Kensuke Oshima, Shuya Nagayama, Masahiro Kanda