Patents by Inventor Ryota Chiba

Ryota Chiba 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: 20240086534
    Abstract: A tampering detection device includes tampering detection circuitry configured to acquire an access pattern of a monitoring target file, extract a time-series pattern of access for each monitoring target file from the access pattern acquired, and determine a scan pattern on a basis of the time-series pattern of access extracted.
    Type: Application
    Filed: January 13, 2021
    Publication date: March 14, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuki YAMANAKA, Manami ITO, Ryota SATO, Hiroyoshi TAKIGUCHI, Nobuhiro CHIBA, Yoshiaki NAKAJIMA
  • Patent number: 10589528
    Abstract: A liquid discharge head including: a flow path formation part in which pressure generation chambers are arranged; and a pressure generation unit configured to apply pressure to the pressure generation chambers, wherein the pressure generation unit is formed by joining a vibration unit to the flow path formation part with a resin layer, and wherein the resin layer includes a curable resin composition including (A) an epoxy resin, (B) a polythiol compound, (C) at least one adhesiveness-imparting agent selected from the group consisting of a compound represented by General Formula (1), a titanium compound represented by General Formula (2-1), and a titanium compound represented by General Formula (2-2), and (D) a curing accelerator.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: March 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Sameshima, Hisashi Habashi, Ryota Chiba
  • Publication number: 20190283427
    Abstract: A liquid discharge head including: a flow path formation part in which pressure generation chambers are arranged; and a pressure generation unit configured to apply pressure to the pressure generation chambers, wherein the pressure generation unit is formed by joining a vibration unit to the flow path formation part with a resin layer, and wherein the resin layer includes a curable resin composition including (A) an epoxy resin, (B) a polythiol compound, (C) at least one adhesiveness-imparting agent selected from the group consisting of a compound represented by General Formula (1), a titanium compound represented by General Formula (2-1), and a titanium compound represented by General Formula (2-2), and (D) a curing accelerator.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 19, 2019
    Inventors: Tatsuya SAMESHIMA, Hisashi HABASHI, Ryota CHIBA
  • Patent number: 9464191
    Abstract: A silicon-containing curing composition including a specific amount of a silicon-containing polymer having an Mw of 300 to 100,000 obtained by hydrolysis and condensation of an organosilane mixture containing specific amounts of organosiloxanes of formulae (1-1) through (1-5); a specific amount of a prepolymer containing at least two Si—H groups per molecule obtained by hydrosilylation between a cyclic siloxane compound of formula (2) and a compound of formula (3-1), (3-2), or (3-3); a specific amount of a linear siloxane compound containing more than one carbon-carbon double bond reactive with Si—H or Si—CH3 per molecule; specific amounts of an organic peroxide and a metal catalyst; and a specific amount of a filler. The details for the formulae (1-1) to (1-5), (2), (3-1) to (3-3) are as described in the specification.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 11, 2016
    Assignee: ADEKA CORPORATION
    Inventors: Masako Saito, Ryota Chiba, Takuya Kanazawa, Ichiro Hiratsuka, Takaaki Kanbayashi
  • Publication number: 20150158982
    Abstract: A silicon-containing curing composition including a specific amount of a silicon-containing polymer having an Mw of 300 to 100,000 obtained by hydrolysis and condensation of an organosilane mixture containing specific amounts of organosiloxanes of formulae (1-1) through (1-5); a specific amount of a prepolymer containing at least two Si—H groups per molecule obtained by hydrosilylation between a cyclic siloxane compound of formula (2) and a compound of formula (3-1), (3-2), or (3-3); a specific amount of a linear siloxane compound containing more than one carbon-carbon double bond reactive with Si—H or Si—CH3 per molecule; specific amounts of an organic peroxide and a metal catalyst; and a specific amount of a filler. The details for the formulae (1-1) to (1-5), (2), (3-1) to (3-3) are as described in the specification.
    Type: Application
    Filed: June 5, 2012
    Publication date: June 11, 2015
    Inventors: Masako Saito, Ryota Chiba, Takuya Kanazawa, Ichiro Hiratsuka, Takaaki Kanbayashi
  • Patent number: 8809478
    Abstract: A curable composition includes: 100 parts by mass of a silicon-containing polymer having a Mw of 3,000 to 100,000 obtainable by hydrolysis-condensation of an organosilane mixture including R1SiX3, R2SiX3, R3R4SiX2 and R5SiX3, the total of R2SiX3 and R3R4SiX2 being 5 to 60 mol %, optionally a prepolymer, optionally a cyclic siloxane compound, 0.0001 to 10 parts by mass of an organic peroxide and optionally a metal catalyst, and 10 to 1,500 parts by mass of a filler, wherein R1 is a C2-6 alkenyl group, R2 is a C1-6 alkyl group, R3 and R4 are each a C1-6 alkyl group, R5 is a phenyl group optionally substituted with a C1-6 alkyl group, and X is a C1-6 alkoxy group, one or more of R2 to R4 is a methyl group, f represents a number of 2 to 10, g represents a number of 0 to 8, and n represents 1 or 2.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: August 19, 2014
    Assignee: Adeka Corporation
    Inventors: Masako Saito, Ichiro Hiratsuka, Masahiro Wada, Ryota Chiba, Takuya Kanazawa, Osamu Yoshioka, Takehito Tsukamoto, Junko Toda
  • Publication number: 20130075154
    Abstract: A curable composition includes: 100 parts by mass of a silicon-containing polymer having a Mw of 3,000 to 100,000 obtainable by hydrolysis-condensation of an organosilane mixture including R1SiX3, R2SiX3, R3R4SiX2 and R5SiX3, the total of R2SiX3 and R3R4SiX2 being 5 to 60 mol %, optionally a prepolymer, optionally a cyclic siloxane compound, 0.0001 to 10 parts by mass of an organic peroxide and optionally a metal catalyst, and 10 to 1,500 parts by mass of a filler, wherein R1 is a C2-6 alkenyl group, R2 is a C1-6 alkyl group, R3 and R4 are each a C1-6 alkyl group, R5 is a phenyl group optionally substituted with a C1-6 alkyl group, and X is a C1-6 alkoxy group, one or more of R2 to R4 is a methyl group, f represents a number of 2 to 10, g represents a number of 0 to 8, and n represents 1 or 2.
    Type: Application
    Filed: June 6, 2011
    Publication date: March 28, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Masako Saito, Ichiro Hiratsuka, Masahiro Wada, Ryota Chiba, Takuya Kanazawa, Osamu Yoshioka, Takehito Tsukamoto, Junko Toda
  • Patent number: 7695895
    Abstract: An alkali-developable photosensitive color composition containing a binder resin, a fluorine-containing copolymer, a photopolymerization initiator, a colorant, and a solvent. A photopolymerizable unsaturated compound is used as the binder resin. The photopolymerizable unsaturated compound is obtained by adding (B) an unsaturated monobasic acid to (A) a polyfunctional epoxy resin to form (C) an epoxy adduct and allowing the epoxy adduct (C) and (D) a polybasic acid anhydride to react with each other.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: April 13, 2010
    Assignees: Toppan Printing Co., Ltd., Adeka Corporation
    Inventors: Hiroyuki Miura, Kazushige Kitazawa, Hideyuki Yamada, Masahide Tsuzuki, Ryota Chiba
  • Publication number: 20070292805
    Abstract: An alkali-developable photosensitive color composition containing a binder resin, a fluorine-containing copolymer, a photopolymerization initiator, a colorant, and a solvent. A photopolymerizable unsaturated compound is used as the binder resin. The photopolymerizable unsaturated compound is obtained by adding (B) an unsaturated monobasic acid to (A) a polyfunctional epoxy resin to form (C) an epoxy adduct and allowing the epoxy adduct (C) and (D) a polybasic acid anhydride to react with each other.
    Type: Application
    Filed: July 19, 2006
    Publication date: December 20, 2007
    Applicant: ADEKA CORPORATION
    Inventors: Hiroyuki Miura, Kazushige Kitazawa, Hideyuki Yamada, Masahide Tsuzuki, Ryota Chiba
  • Patent number: D880989
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: April 14, 2020
    Assignee: MIKI PULLEY CO., LTD.
    Inventors: Takeshi Hashimoto, Ryota Chiba