Patents by Inventor Yasuaki Yoshimura
Yasuaki Yoshimura 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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Patent number: 11971676Abstract: A processor derives a plurality of unit density values which are each an average value of sensed densities for each of a plurality of unit areas sectioned for each unit length in a test toner image. The processor derives a weighted average of the plurality of unit density values to derive a test image density used for adjusting a control parameter in a printing portion. The unit length is a greatest common factor of two target lengths corresponding to perimeters of two types of target rotating members out of the plurality of rotating members. When a number of the plurality of unit areas is represented by n, n is a value obtained by subtracting 1 from an added value of a first constant and a second constant. The first constant and the second constant are values obtained by respectively dividing the two target lengths by the unit length.Type: GrantFiled: January 30, 2023Date of Patent: April 30, 2024Assignee: KYOCERA Document Solutions Inc.Inventors: Masaru Watanabe, Yasuaki Sakamoto, Ayato Morikami, Kenichi Hayashi, Hideyuki Ogasawara, Yukiko Yoshimura
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Publication number: 20240103399Abstract: A toner concentration sensing apparatus includes a first acquisition processing portion, a second acquisition processing portion, and a third acquisition processing portion. The first acquisition processing portion acquires a first sensing value corresponding to light reflected by a first region of an image-carrying member where a toner image is not formed. The second acquisition processing portion acquires a second sensing value corresponding to light reflected by a second region of the image-carrying member where a toner image has been formed. The third acquisition processing portion acquires a component ratio of a component in the second sensing value, that corresponds to light reflected by toner adhered onto a surface of the image-carrying member, using a specific calculation formula determined based on a first relational expression based on the first sensing value and a second relational expression not based on the first sensing value, and the second sensing value.Type: ApplicationFiled: September 20, 2023Publication date: March 28, 2024Inventors: Ayato Morikami, Yasuaki Sakamoto, Masaru Watanabe, Kenichi Hayashi, Hideyuki Ogasawara, Yukiko Yoshimura
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Patent number: 11732088Abstract: A polyester carbonate resin is provided and includes a constituent unit represented by the following general formula (1), a constituent unit represented by the following general formula (2), and a constituent unit represented by the following general formula (3): wherein R represents hydrogen or an alkyl group containing 1 to 4 carbon atoms, wherein Q represents the following: wherein n and m each independently represent an integer of 0 to 5, andType: GrantFiled: October 8, 2019Date of Patent: August 22, 2023Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Manabu Hirakawa, Noriyuki Kato, Eiichi Honda, Yasuaki Yoshimura, Yuichiro Satake
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Publication number: 20230109138Abstract: A resin composition contains: a resin containing a constituent unit (A) represented by general formula (1); and a resin containing a constituent unit (B) represented by formula (2) and/or a constituent unit (C) represented by formula (3). (R1 represents a methyl group or an ethyl group, R2 and R3 represent a hydrogen atom or a methyl group, and n represents 0 or 1.) (Ra and Rb represent a hydrogen atom, etc., Rh represents an aryl group of 6-20 carbons, X represents a single bond or a fluorene group, A and B represent an alkylene group of 1-4 carbons, m and n represent integers 0-6, and a and b represent integers 0-10.) (Rc and Rd represent a hydrogen atom, etc., Y represents a fluorene group, A and B represent an alkylene group of 1-4 carbons, p and q represent integers 0-4, and a and b represent integers 0-10.Type: ApplicationFiled: March 26, 2021Publication date: April 6, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasuaki YOSHIMURA, Mitsuteru KONDO, Noriyuki KATO, Eiichi HONDA, Manabu HIRAKAWA, Yuichiro SATAKE, Katsushi NISHIMORI, Shoko MURATA SUZUKI, Tatsuki NYUUI, Mitsutake SUEMATSU
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Publication number: 20220162378Abstract: Provided is a thermoplastic resin having a constituent unit represented by the following general formula (I): wherein R1 represents a hydrocarbon group containing 1 to 6 carbon atoms, and R2 and R3 each independently represent a hydrogen atom or a methyl group.Type: ApplicationFiled: March 31, 2020Publication date: May 26, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Eiichi HONDA, Manabu HIRAKAWA, Yasuaki YOSHIMURA, Yuichiro SATAKE
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Publication number: 20220135736Abstract: Provided is a polyester carbonate resin having a constituent unit (I) represented by the following general formula (1), a constituent unit (II) represented by the following general formula (2), and a constituent unit (III) represented by the following general formula (3): wherein, in the above formula (1), R1 to R3 each independently represent a hydrogen atom, a methyl group or an ethyl group, and in the above formula (2), Q represents a divalent linking group.Type: ApplicationFiled: March 10, 2020Publication date: May 5, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Manabu HIRAKAWA, Eiichi HONDA, Yasuaki YOSHIMURA, Yuichiro SATAKE
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Patent number: 11236198Abstract: An automobile component including a molded article containing a copolymerized polyester resin synthesized from a hydroxycarboxylic acid monomer, a diol monomer, and a dicarboxylic acid/ester monomer and having a unit (A) of formula (1), a diol unit (B), and a unit (C) derived from a dicarboxylic acid or an ester-forming derivative of the dicarboxylic acid. A content of the unit (A) in the total units of the copolymerized polyester resin is 60 to 90 mol %, The formula (1) is where R1 is a hydrogen atom, CH3, or C2H5, R2 and R3 are each independently a hydrogen atom or CH3, and n is 0 or 1.Type: GrantFiled: January 22, 2019Date of Patent: February 1, 2022Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Eiichi Honda, Yasuaki Yoshimura, Keita Noguchi, Yuichiro Satake
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Publication number: 20210347937Abstract: A polyester carbonate resin is provided and includes a constituent unit represented by the following general formula (1), a constituent unit represented by the following general formula (2), and a constituent unit represented by the following general formula (3): wherein R represents hydrogen or an alkyl group containing 1 to 4 carbon atoms, wherein Q represents the following: wherein n and m each independently represent an integer of 0 to 5, andType: ApplicationFiled: October 8, 2019Publication date: November 11, 2021Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Manabu HIRAKAWA, Noriyuki KATO, Eiichi HONDA, Yasuaki YOSHIMURA, Yuichiro SATAKE
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Patent number: 11016232Abstract: Optical films comprising a polyester resin comprising a structural unit (A) of the following formula (1) wherein the content of the structural unit (A) based on the total structural units of the polyester resin is 76 mol % or greater: wherein R1 is a hydrogen atom, CH3, or C2H5; R2 and R3 is each independently a hydrogen atom or CH3; and n is 1, for example, Decahydro-1,4:5,8-dimethanonaphthalene-2-methoxycarbonyl-6(7)-methanol. Retardation films and circularly or elliptically polarizing plates comprising the optical films are also provided.Type: GrantFiled: September 27, 2017Date of Patent: May 25, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasuaki Yoshimura, Eiichi Honda, Keita Noguchi, Yuichiro Satake
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Publication number: 20210147619Abstract: A polyester resin composition containing: a polyester resin containing a unit (A) represented by the following general formula (1); and an antioxidant: wherein R1 is a hydrogen atom, CH3 or C2H5, R2 and R3 are each independently a hydrogen atom or CH3, and n is 0 or 1.Type: ApplicationFiled: April 1, 2019Publication date: May 20, 2021Applicant: Mitsubishi Gas Chemical Company, Inc.Inventors: Yuichiro SATAKE, Manabu HIRAKAWA, Yasuaki YOSHIMURA, Eiichi HONDA
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Patent number: 10981366Abstract: An object is to provide an optical polyester film and a transparent conductive film that are superior in transparency, heat resistance, optical properties, and adhesion. The optical polyester film includes: a base material containing a polyester resin containing a unit (A) of the following formula (1); and at least one functional layer disposed on at least one surface of the base material, wherein the at least one functional layer is selected from the group consisting of a hard coat layer, a transparent conductive layer, an anti-reflection layer, a gas barrier layer, and an adhesive layer.Type: GrantFiled: September 27, 2017Date of Patent: April 20, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Eiichi Honda, Yasuaki Yoshimura, Keita Noguchi, Yuichiro Satake
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Patent number: 10947342Abstract: An object is to provide an optical lens having low water-absorbing capacity and superior in heat resistance, transparency, and optical characteristics (refractive index, Abbe's number, and photoelastic coefficient). The optical lens includes a polyester resin containing a unit (A) of the following formula (1).Type: GrantFiled: September 27, 2017Date of Patent: March 16, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasuaki Yoshimura, Eiichi Honda, Keita Noguchi, Yuichiro Satake
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Patent number: 10894859Abstract: A copolymerized polyester resin containing a unit (A) represented by the following formula (1), a diol unit (B), and a unit (C) derived from a dicarboxylic acid or an ester-forming derivative of the dicarboxylic acid, wherein a content of the unit (A) based on total units of the copolymerized polyester resin is 10 to 95 mol %, and the copolymerized polyester resin satisfies the following conditions (1) to (3): (1) a glass transition temperature of the copolymerized polyester resin is 90° C. or higher; (2) an amount of heat generated by the copolymerized polyester resin at cooling crystallization is 5 J/g or less; and (3) an absolute value of photoelastic coefficient of the copolymerized polyester resin is 40×10?12 Pa?1 or less: wherein R1 is a hydrogen atom, CH3, or C2H5, R2 and R3 are each independently a hydrogen atom or CH3, and n is 0 or 1.Type: GrantFiled: September 27, 2017Date of Patent: January 19, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Eiichi Honda, Yasuaki Yoshimura, Keita Noguchi, Yuichiro Satake, Takashi Motoi
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Patent number: 10889684Abstract: A polyester resin having a diol constitutional unit and a dicarboxylic acid constitutional unit, wherein 20 to 100 mol % of the diol constitutional unit is a constitutional unit derived from a diol having a dinorbornane ring; a glass transition temperature of the polyester resin is 90° C. or higher; an amount of heat of a crystallization exothermic peak in temperature drop of the polyester resin is 5 J/g or less; and a yellow index (YI) value as measured by a reflection method according to JIS K 7103 is 10 or less.Type: GrantFiled: September 12, 2016Date of Patent: January 12, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INCInventors: Yuichiro Satake, Yasuaki Yoshimura, Eiichi Honda, Takashi Motoi, Mitsuharu Kitamura
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Publication number: 20200347181Abstract: Provided is a molded article containing a copolymerized polyester resin having a unit (A) represented by the following formula (1), a diol unit (B), and a unit (C) derived from a dicarboxylic acid or an ester-forming derivative of the dicarboxylic acid, wherein a content of the unit (A) in the total units of the copolymerized polyester resin is 20 to 90 mol %, wherein R1 is a hydrogen atom, CH3, or C2H5, R2 and R3 are each independently a hydrogen atom or CH3, and n is 0 or 1.Type: ApplicationFiled: January 22, 2019Publication date: November 5, 2020Applicant: Mitsubishi Gas Chemical Company, Inc.Inventors: Eiichi HONDA, Yasuaki YOSHIMURA, Keita NOGUCHI, Yuichiro SATAKE
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Publication number: 20200247944Abstract: A copolymerized polyester resin containing a unit (A) represented by the following formula (1), a diol unit (B), and a unit (C) derived from a dicarboxylic acid or an ester-forming derivative of the dicarboxylic acid, wherein a content of the unit (A) based on total units of the copolymerized polyester resin is 10 to 95 mol %, and the copolymerized polyester resin satisfies the following conditions (1) to (3): (1) a glass transition temperature of the copolymerized polyester resin is 90° C. or higher; (2) an amount of heat generated by the copolymerized polyester resin at cooling crystallization is 5 J/g or less; and (3) an absolute value of photoelastic coefficient of the copolymerized polyester resin is 40×10?12 Pa?1 or less: wherein R1 is a hydrogen atom, CH3, or C2H5, R2 and R3 are each independently a hydrogen atom or CH3, and n is 0 or 1.Type: ApplicationFiled: September 27, 2017Publication date: August 6, 2020Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Eiichi HONDA, Yasuaki YOSHIMURA, Keita NOGUCHI, Yuichiro SATAKE, Takashi MOTOI
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Publication number: 20200033523Abstract: An object is to provide: an optical film such as a retardation film, the optical film having a low photoelastic coefficient (superior optical characteristics) and being superior in heat resistance and transparency; and a polarizing plate including the film. The optical film contains a polyester resin containing a unit (A) of the following formula (1).Type: ApplicationFiled: September 27, 2017Publication date: January 30, 2020Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasuaki YOSHIMURA, Eiichi HONDA, Keita NOGUCHI, Yuichiro SATAKE
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Publication number: 20200031990Abstract: An object is to provide an optical lens having low water-absorbing capacity and superior in heat resistance, transparency, and optical characteristics (refractive index, Abbe's number, and photoelastic coefficient). The optical lens includes a polyester resin containing a unit (A) of the following formula (1).Type: ApplicationFiled: September 27, 2017Publication date: January 30, 2020Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasuaki YOSHIMURA, Eiichi HONDA, Keita NOGUCHI, Yuichiro SATAKE
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Publication number: 20200031108Abstract: An object is to provide an optical polyester film and a transparent conductive film that are superior in transparency, heat resistance, optical properties, and adhesion. The optical polyester film includes: a base material containing a polyester resin containing a unit (A) of the following formula (1); and at least one functional layer disposed on at least one surface of the base material, wherein the at least one functional layer is selected from the group consisting of a hard coat layer, a transparent conductive layer, an anti-reflection layer, a gas barrier layer, and an adhesive layer.Type: ApplicationFiled: September 27, 2017Publication date: January 30, 2020Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Eiichi HONDA, Yasuaki YOSHIMURA, Keita NOGUCHI, Yuichiro SATAKE
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Patent number: 10287391Abstract: A polyester resin according to the present invention comprises a constitutional unit represented by general formula (1): wherein R1 is a hydrogen atom, CH3, or C2H5; and R2 and R3 are each independently a hydrogen atom or CH3.Type: GrantFiled: May 24, 2016Date of Patent: May 14, 2019Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Eiichi Honda, Yasuaki Yoshimura, Yuichiro Satake, Takashi Motoi