Patents by Inventor Shotaro Aoki

Shotaro Aoki 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: 20210355145
    Abstract: A process for producing a dimethylchlorosilane compound of formula (2) below: wherein X represents a halogen atom or an acyloxy group having 2 to 20 carbon atoms, the process including the step of: reacting an allyl compound of formula (1) below: wherein X has a meaning same as above, with dimethylchlorosilane in presence of an iridium catalyst, wherein the dimethylchlorosilane has a content of 1,1,3,3-tetramethyldisiloxane of 5.0 wt % or less.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 18, 2021
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shotaro AOKI, Yoichi TONOMURA, Ayumu KIYOMORI
  • Patent number: 11118072
    Abstract: A composition is provided comprising (a) a polysilazane having a monovalent hydrocarbon group, (b) untreated metal oxide nanoparticles, metal oxide nanoparticles having a monovalent hydrocarbon group, or metal oxide nanoparticles having an alkylsilyl or alkoxysilyl group, and (c) an aprotic solvent. The composition has storage stability and is suitable for forming a film having water repellent, especially superhydrophobic properties.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: September 14, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ayumu Kiyomori, Shotaro Aoki, Masato Kawakami, Tohru Kubota
  • Patent number: 11066427
    Abstract: The invention provides an organosilane compound having a more bulky substituent group than the existing organosilane compounds. The compound is represented by formula (1) wherein R1 is a C4-C10 tertiary hydrocarbon group, R2 is a C1-C10 alkyl group, and LG is halogen or trifluoromethanesulfonyloxy.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: July 20, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Shotaro Aoki, Ayumu Kiyomori
  • Publication number: 20200385411
    Abstract: The invention provides an organosilane compound having a more bulky substituent group than the existing organosilane compounds. The compound is represented by formula (1) wherein R1 is a C4-C10 tertiary hydrocarbon group, R2 is a C1-C10 alkyl group, and LG is halogen or trifluoromethanesulfonyloxy.
    Type: Application
    Filed: June 4, 2020
    Publication date: December 10, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shotaro AOKI, Ayumu KIYOMORI
  • Publication number: 20200239641
    Abstract: A polysiloxazane compound including a repeating unit of the following general formula (1), and having a number average molecular weight of 500 to 100,000 as measured by gel permeation chromatography versus polystyrene standards, wherein R1 and R2 each independently represent a substituted or unsubstituted C1-C50 monovalent hydrocarbon group optionally containing a hetero atom, Xs each independently represent a methyl group, an oxygen atom, NH—SiX2, or (NH)(3-r)/2—SiR1R2r (R1 and R2 have the same meaning as provided above), or Xs are joined to one another to represent an oxygen atom, n is an integer of 0 to 8, when the number of NH—SiX2 is denoted by p, p satisfies 0?p/(2n+4)?0.5, r is an integer of 0, 1, or 2, and a and b are numbers satisfying 0<a?1, 0?b<1, and a+b=1.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 30, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masato Kawakami, Shotaro Aoki, Ayumu Kiyomori
  • Publication number: 20190367539
    Abstract: Provided is a carbonate-containing silane compound having a characteristic structure that at least two silicon atoms are linked by a carbon chain. The silane compound is chemically stable. When used as an additive to a nonaqueous electrolyte solution, the silane compound does not jeopardize the safety of lithium ion secondary batteries.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Shotaro Aoki, Yoichi Tonomura, Yasufumi Kubota, Ayumu Kiyomori
  • Publication number: 20190315972
    Abstract: A composition is provided comprising (a) a polysilazane having a monovalent hydrocarbon group, (b) untreated metal oxide nanoparticles, metal oxide nanoparticles having a monovalent hydrocarbon group, or metal oxide nanoparticles having an alkylsilyl or alkoxysilyl group, and (c) an aprotic solvent. The composition has storage stability and is suitable for forming a film having water repellent, especially superhydrophobic properties.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 17, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Ayumu Kiyomori, Shotaro Aoki, Masato Kawakami, Tohru Kubota