Patents by Inventor Masato Kawakami

Masato Kawakami 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: 11787823
    Abstract: Diterminally silanol-modified perfluoropolyether compounds of the general formula (1) (wherein each R1 is independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms, each R2 is independently a substituted or unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, Rf is a perfluoropolyether group, and ‘n’ is independently at each occurrence an integer from 0 to 8) are provided. Such compounds, when reacted as an intermediate with a reactive silicon compound, afford compounds of excellent durability.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: October 17, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Masato Kawakami
  • Patent number: 11760903
    Abstract: The adhesive composition includes: a cyclic organosilazane compound of the following general formula (1): wherein R1s each independently represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, and p represents an integer of 3 to 8; and a hydrolyzable group-containing organosilicon compound containing an alkoxysilane compound of the following general formula (2) and/or a partial hydrolytic condensate thereof: R2x—Si(OR3)4-x ??(2) wherein R2 represents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms and optionally having an oxygen atom, R3 represents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, and x represents an integer of 0 to 2.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: September 19, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masato Kawakami, Ayumu Kiyomori, Koichi Nakazawa
  • Patent number: 11739184
    Abstract: A polysiloxazane compound having an alkoxysilyl group having an average composition of formula (1): wherein R1 represents a monovalent hydrocarbon group. R2 represents a monovalent hydrocarbon group, R3 represents an unsubstituted monovalent hydrocarbon group, R4 represents a divalent hydrocarbon group having 2 to 20 carbon atoms, X represents a methyl group, Y represents a group of formula (2) or (3) below: (R2 is same as above. R5 and R6 represent a monovalent hydrocarbon group, Z represents a divalent hydrocarbon group and the like, p is an integer of 0 to 9, and q is 0, 1, or 2.), n is an integer of 11 to 500, m is 0, 1, or 2, r is 0 or 1, and a, b, and c are numbers that satisfy 0<a<1, 0?b<1, 0<c<1, and a+2b+2c=1.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: August 29, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Masato Kawakami
  • Patent number: 11708460
    Abstract: An alkoxysilyl group-containing organic silazane compound having an average composition represented by formula (1) below: wherein R1 is a monovalent hydrocarbon group, R2 is a divalent hydrocarbon group, Y is a group represented by formula (6) or (7) below: wherein R3, R4, and R6 are a monovalent hydrocarbon group, X is an oxygen atom or a divalent hydrocarbon group, p is an integer of 0 to 9, and n is 0, 1, or 2, R5 is a monovalent hydrocarbon group, m is 0 or 1, r is 0, 1, or 2, and a and b are numbers which satisfy 0<a?1, 0?b<1, and a+b=1.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: July 25, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Masato Kawakami
  • Publication number: 20230108908
    Abstract: A cyclic silazane compound having an alkoxysilyl group, represented by the following general formula (1): wherein R1, R2, R5 and R6 each independently represent an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, R3 represents a divalent hydrocarbon group having 4 to 20 carbon atoms, which may contain a sulfur atom, an ester bond or a urea bond, R4 represents a hydrogen atom or an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, m is 0 or 1, and n is 0, 1 or 2.
    Type: Application
    Filed: September 20, 2022
    Publication date: April 6, 2023
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Masato KAWAKAMI
  • Publication number: 20230105015
    Abstract: A curable composition containing an alkoxysilylalkylaminopropyl-modified polysiloxane compound of the following general formula (1) and a hydrolyzable group-containing organosilicon compound: wherein R1s each independently represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, R2 and R3 each independently represent an unsubstituted monovalent hydrocarbon group having 1 to 6 carbon atoms, R4 represents a divalent hydrocarbon group having 1 to 20 carbon atoms, which may contain a sulfur atom, a silicon atom, an ester bond or a urea bond, p is an integer of 1 to 1000, q is 0 or 1, r is 0, 1 or 2, and X represents a group of the following general formula (2) or R13Si: wherein R2 to R4, q and r represent the same meaning as described above.
    Type: Application
    Filed: September 20, 2022
    Publication date: April 6, 2023
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Masato KAWAKAMI
  • Patent number: 11383951
    Abstract: A sheet processing apparatus for performing binding processing for a sheet bundle formed from a plurality of sheets, comprises: an application unit configured to apply a liquid to a sheet wherein the application unit applies the liquid to an outermost sheet of the sheet bundle, and a static surface tension of the liquid is lower than a static surface tension of water; and a binding processing unit configured to bind the sheet bundle, without using a staple, wherein the binding processing unit includes a pair of groups of pressurizing teeth, and the pressurizing teeth clamp and pressurize the sheet bundle. In the sheet bundle, a liquid application region which is applied with the liquid and a pressurizing region which is pressurized by the pressurizing teeth are provided to overlap each other.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: July 12, 2022
    Assignee: Canon Finetech Nisca Inc.
    Inventor: Masato Kawakami
  • Publication number: 20220169665
    Abstract: A method for producing a compound (3), by reacting a compound (1) having R1 and R2 representing a hydrogen atom or a monovalent hydrocarbon group wherein a case where both R1 and R2 are a hydrogen atom is excluded, with a compound (2) having R3 representing a divalent hydrocarbon group, R4 and R5 representing a monovalent hydrocarbon group, X representing a halogen atom, and m representing an integer of 0 to 2 the method comprising the steps of: using 0.1 mol or more and less than 1 mol of a compound (4) having R6 representing a divalent hydrocarbon group and A representing a single bond or the like per 1 mol of the halogen atom in the compound (2), and liquefying a mixture of hydrogen halide salts of the compounds (1) and (4) generated as a by-product to separate the mixture from the compound (3) and removing the mixture.
    Type: Application
    Filed: November 16, 2021
    Publication date: June 2, 2022
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masato KAWAKAMI, Yoichi TONOMURA
  • Patent number: 11339252
    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: Grant
    Filed: January 22, 2020
    Date of Patent: May 24, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masato Kawakami, Shotaro Aoki, Ayumu Kiyomori
  • Patent number: 11279848
    Abstract: A polysilazane composition comprising an organopolysilazane compound free of Si—H structure and an organoxysilane compound having at least two silicon atoms in the molecule does not release hazardous substances such as hydrogen or require reactive solvents.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: March 22, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masato Kawakami, Ayumu Kiyomori
  • Publication number: 20220033581
    Abstract: Diterminally amine-modified perfluoropolyether compounds of the general formula (wherein Rf is a perfluoropolyether group; each R1 is independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; R2, R3 and R4 are each independently substituted or unsubstituted monovalent hydrocarbon groups of 1 to 10 carbon atoms; each R5 is independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; each R6 is independently a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group of 1 to 50 carbon atoms which may include at least one oxygen, nitrogen, sulfur or silicon atom; each occurrence of ‘m’ is independently 0, 1 or 2; and each occurrence of ‘n’ is independently an integer from 0 to 8) are provided. Such compounds have a good solubility in solvents and reactive resins.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Masato KAWAKAMI
  • Publication number: 20220033422
    Abstract: Diterminally silanol-modified perfluoropolyether compounds of the general formula (1) (wherein each R1 is independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms, each R2 is independently a substituted or unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, Rf is a perfluoropolyether group, and ‘n’ is independently at each occurrence an integer from 0 to 8) are provided. Such compounds, when reacted as an intermediate with a reactive silicon compound, afford compounds of excellent durability.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 3, 2022
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Masato KAWAKAMI
  • Patent number: 11203670
    Abstract: A bissilylamino group-containing organic polysilazane compound having an average composition represented by general formula (1) below: wherein R1 is a monovalent hydrocarbon group, R2 is a divalent hydrocarbon group, R3 and R4 are a monovalent hydrocarbon group, R3 and R4 optionally bond each other to form a ring structure together with a silicon atom to which R3 and R4 are bonded and a nitrogen atom to which the silicon atom is directly bonded, R5 is a monovalent hydrocarbon group, p is 0 or 1, q is 0, 1, or 2, and a and b are numbers which satisfy 0<a?1, 0?b<1, and a+b=1, and having a number average molecular weight in terms of polystyrene measured by GPC of 500 to 100,000.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 21, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masato Kawakami, Ayumu Kiyomori
  • Publication number: 20210332265
    Abstract: The adhesive composition includes: a cyclic organosilazane compound of the following general formula (1): wherein R1s each independently represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, and p represents an integer of 3 to 8; and a hydrolyzable group-containing organosilicon compound containing an alkoxysilane compound of the following general formula (2) and/or a partial hydrolytic condensate thereof: R2x—Si(OR3)4-x ??(2) wherein R2 represents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms and optionally having an oxygen atom, R3 represents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, and x represents an integer of 0 to 2.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 28, 2021
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masato KAWAKAMI, Ayumu KIYOMORI, Koichi NAKAZAWA
  • 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
  • Publication number: 20210095079
    Abstract: A polysiloxazane compound having an alkoxysilyl group having an average composition of formula (1): wherein R1 represents a monovalent hydrocarbon group. R2 represents a monovalent hydrocarbon group, R3 represents an unsubstituted monovalent hydrocarbon group, R4 represents a divalent hydrocarbon group having 2 to 20 carbon atoms, X represents a methyl group, Y represents a group of formula (2) or (3) below: (R2 is same as above. R5 and R6 represent a monovalent hydrocarbon group, Z represents a divalent hydrocarbon group and the like, p is an integer of 0 to 9, and q is 0, 1, or 2.), n is an integer of 11 to 500, m is 0, 1, or 2, r is 0 or 1, and a, b, and c are numbers that satisfy 0<a<1, 0?b<1, 0<c<1, and a+2b+2c=1.
    Type: Application
    Filed: September 23, 2020
    Publication date: April 1, 2021
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Masato KAWAKAMI
  • Publication number: 20210062040
    Abstract: A polysilazane composition comprising an organopolysilazane compound free of Si—H structure and an organoxysilane compound having at least two silicon atoms in the molecule does not release hazardous substances such as hydrogen or require reactive solvents.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 4, 2021
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masato KAWAKAMI, Ayumu KIYOMORI
  • Publication number: 20200332071
    Abstract: An alkoxysilyl group-containing organic silazane compound having an average composition represented by formula (1) below: wherein R1 is a monovalent hydrocarbon group, R2 is a divalent hydrocarbon group, Y is a group represented by formula (6) or (7) below: wherein R3, R4, and R6 are a monovalent hydrocarbon group, X is an oxygen atom or a divalent hydrocarbon group, p is an integer of 0 to 9, and n is 0, 1, or 2, R5 is a monovalent hydrocarbon group, m is 0 or 1, r is 0, 1, or 2, and a and b are numbers which satisfy 0<a?1, 0?b<1, and a+b=1.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 22, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Masato KAWAKAMI
  • Publication number: 20200332070
    Abstract: A bissilylamino group-containing organic polysilazane compound having an average composition represented by general formula (1) below: wherein R1 is a monovalent hydrocarbon group, R2 is a divalent hydrocarbon group, R3 and R4 are a monovalent hydrocarbon group, R3 and R4 optionally bond each other to form a ring structure together with a silicon atom to which R3 and R4 are bonded and a nitrogen atom to which the silicon atom is directly bonded, R5 is a monovalent hydrocarbon group, p is 0 or 1, q is 0, 1, or 2, and a and b are numbers which satisfy 0<a?1, 0?b<1, and a+b=1, and having a number average molecular weight in terms of polystyrene measured by GPC of 500 to 100,000.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 22, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masato KAWAKAMI, Ayumu KIYOMORI
  • Publication number: 20200317462
    Abstract: A sheet processing apparatus for performing binding processing for a sheet bundle formed from a plurality of sheets, comprises: an application unit configured to apply a liquid to a sheet wherein the application unit applies the liquid to an outermost sheet of the sheet bundle, and a static surface tension of the liquid is lower than a static surface tension of water; and a binding processing unit configured to bind the sheet bundle, without using a staple, wherein the binding processing unit includes a pair of groups of pressurizing teeth, and the pressurizing teeth clamp and pressurize the sheet bundle. In the sheet bundle, a liquid application region which is applied with the liquid and a pressurizing region which is pressurized by the pressurizing teeth are provided to overlap each other.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 8, 2020
    Inventor: Masato Kawakami