Patents by Inventor Kenji Aoki
Kenji 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).
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Publication number: 20230418174Abstract: A toner comprising a toner particle, the toner particle comprising a resin, wherein, where a chloroform-soluble component of the resin is analyzed by gradient LC analysis using acetonitrile as a poor solvent and chloroform as a good solvent for the chloroform-soluble component of the resin, a peak detected in a range of a ratio of chloroform in the mobile phase of 50.0 to 75.0% by volume and a peak detected in a range of a ratio of chloroform in the mobile phase of 75.0 to 95.0% by volume satisfy a specific relationship.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: YUHEI TERUI, KENJI AOKI, SHINTARO NOJI, YU YOSHIDA, MARIKO YAMASHITA
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Publication number: 20230418177Abstract: A toner comprising a toner particle, the toner particle comprising a binder resin, wherein T1, T2, T3, tan ?(T2), and tan ?(T2?10) satisfy expressions (1) to (4): T3?T1?10 ??(1) 50?T2?70 ??(2) 0.30?tan ?(T2)?1.00 ??(3) 1.00?tan ?(T2)/tan ?(T2?10)?1.90 ??(4). Where, in measurement of viscoelasticity of the toner, T1(° C.) represents a temperature at which a storage elastic modulus G? is 3.0×107 Pa, T2(° C.) represents a temperature at which the storage elastic modulus G? is 1.0×107 Pa, T3(° C.) represents a temperature at which the storage elastic modulus G? is 3.0×106 Pa, tan ?(T2) represents a ratio (tan ?) of a loss elastic modulus G? to the storage elastic modulus G? at the temperature T2(° C.), and tan ?(T2?10) represents the ratio (tan ?) at a temperature: T2?10(° C.).Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: KENJI AOKI, MARIKO YAMASHITA, YUHEI TERUI, TAKASHI MATSUI
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Publication number: 20230418176Abstract: A magnetic toner comprising a toner particle, the toner particle comprising a magnetic body, a crystalline resin A, and an amorphous resin B. The crystalline resin A has a monomer unit (a). The amorphous resin B has a monomer unit (b). A content of the crystalline resin A in the toner is 6.2 to 77.0 mass %. The sum of contents of the crystalline resin A and the amorphous resin B in the toner is 30.0 mass % or more. A content of the monomer unit (a) in the crystalline resin A is 50.0 to 100.0 mass %. Using SPA [(J/cm3)0.5] for a SP value of the crystalline resin A and using SPB [(J/cm3)0.5] for a SP value of the amorphous resin B, SPA and SPB satisfy 0.15?SPB?SPA?2.00.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: MARIKO YAMASHITA, TAKASHI MATSUI, KENJI AOKI, YUHEI TERUI, SHINTARO NOJI
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Publication number: 20230418175Abstract: A toner comprising a toner particle, the toner particle comprising a binder resin, the binder resin comprises a crystalline resin A, the crystalline resin A comprises a monomer unit (a) having specific structure, when, in measurement of viscoelasticity of the toner, T1 (° C.) represents a temperature at which a storage elastic modulus G? of the toner is 1.0×107 Pa, tan ?(T1) represents a ratio (tan ?) of a loss elastic modulus G? of the toner to the storage elastic modulus G? of the toner at the temperature T1 (° C.), and tan ?(T1-10) represents tan ? at a temperature T1-10 (° C.), the T1, the tan ?(T1), and the tan ?(T1-10) satisfy specific relationship, and the toner particle comprises a linear fatty acid metal salt having a valency of 2 or more.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: KENTARO YAMAWAKI, SHOTARO NOMURA, KENJI AOKI, YU YOSHIDA
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Publication number: 20230418172Abstract: A nonmagnetic toner comprises a nonmagnetic toner particle. The nonmagnetic toner particle comprises a crystalline resin A, an amorphous resin B, and a colorant. The crystalline resin A has a monomer unit (a). the amorphous resin B has a monomer unit (b). A content of the crystalline resin A in the nonmagnetic toner is 10.0 to 58.0 mass %. The sum of the contents of the crystalline resin A and the amorphous resin B in the nonmagnetic toner is 65.0 mass % or more. A content of the monomer unit (a) in the crystalline resin A is 50.0 to 100.0 mass %. Using SPA [(J/cm3)0.5] for a SP value of the crystalline resin A and using SPB [(J/cm3)0.5] for a SP value of the amorphous resin B, SPA and SPB satisfy 0.15?SPB?SPA?2.00.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: SHINTARO NOJI, MARIKO YAMASHITA, KENJI AOKI, YUHEI TERUI, TAKASHI MATSUI
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Publication number: 20230391168Abstract: A glass for a vehicle, includes: a glass plate; a ceramic color layer formed on a surface of the glass plate; and a conductive layer formed on a surface of the ceramic color layer, the conductive layer including silver, in which the ceramic color layer is a sintered layer including a glass frit and a pigment, the glass frit includes Bi, a lead-free solder layer is formed on at least a partial region of a surface of the conductive layer including silver, and a Bi/Ag mass ratio in an outermost surface of the conductive layer including silver is less than 0.10.Type: ApplicationFiled: August 18, 2023Publication date: December 7, 2023Applicant: AGC Inc.Inventors: Yuukou MINAMIYA, Kenji AOKI
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Patent number: 11602820Abstract: In a polishing apparatus an optical connector polishing jig holds the MT ferrule provided at the connection end portion of the optical connector, the optical connector polishing jig includes: a cylinder base; a cylinder shaft held on the cylinder base to be capable of moving in the up-down direction; and a set block connected to an end of the cylinder shaft and having a hole into which the MT ferrule is inserted and in which fixing means for adjusting the pressing force and fixing the MT ferrule is inserted, and a surface of the fixing means that comes into contact with the MT ferrule has a protrusion that partially protrudes to apply a pressing force to the MT ferrule such that when the MT ferrule is fixed, an end surface of the MT ferrule is slightly deformed and a center portion of the end surface in a longitudinal direction swells.Type: GrantFiled: March 6, 2018Date of Patent: March 14, 2023Assignee: NTT ADVANCED TECHNOLOGY CORPORATIONInventors: Naoki Sugita, Toshinori Kimura, Masaaki Konishi, Kenji Aoki
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Publication number: 20220342329Abstract: A toner comprising a toner particle comprising a binder resin, wherein the binder resin comprises a resin A and a resin B, in a differential scanning calorimetric measurement, a peak top temperature of the largest endothermic peak is present within a specific temperature range and an endothermic amount of an endothermic peak derived from the resin A is 30 to 70 J/g per 1 g of the toner, a ratio of content of the resin A in the toner particle is 60.0 to 90.0 mass %, the resin A comprises 40.0 to 70.0 mass % of a monomer unit (a) represented by formula (1) below, and the resin B comprises 5.0 to 30.0 mass % of a monomer unit (b) represented by formula (2) below: in formulae (1) and (2), R1 and R2 denote a hydrogen atom or a methyl group, n and m denote a specific integer.Type: ApplicationFiled: April 7, 2022Publication date: October 27, 2022Inventors: Yuna Yamamoto, Takashi Matsui, Kenji Aoki, Yu Yoshida
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Publication number: 20220334507Abstract: A toner having a toner particle having a binder resin, wherein in differential scanning calorimetry using the toner as a sample, a peak temperature of an endothermic peak derived from the binder resin at a first temperature rise is from 50° C. to 70° C., and an endothermic quantity per 1 g of the toner is from 30 J/g to 70 J/g, and when acetonitrile is used as a poor solvent and chloroform is used as a good solvent for a chloroform-soluble component of the binder resin, and a component eluted during a linear change from a mobile phase composition of 100% by volume of acetonitrile to a mobile phase composition of 100% by volume of chloroform is gradient LC analyzed, a specific relationship between the peaks is satisfied.Type: ApplicationFiled: April 6, 2022Publication date: October 20, 2022Inventors: Kenji Aoki, Takashi Matsui, Yu Yoshida, Yuna Yamamoto
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Publication number: 20220326633Abstract: A toner comprising a toner particle comprising a binder resin and a release agent, wherein the binder resin comprises a crystalline resin A, the crystalline resin A comprises a monomer unit derived from a monomer (a), the monomer (a) is at least one selected from the group consisting of (meth)acrylic acid esters having an alkyl group with 18 to 36 carbon atoms, the peak temperature and endothermic quantity at an endothermic peak derived from the crystalline resin A in DSC measurements using the toner satisfy specific relationships, and the release agent is at least one selected from the group consisting of hydrocarbon-based waxes and ester waxes.Type: ApplicationFiled: June 3, 2022Publication date: October 13, 2022Inventors: Kenji Aoki, Takashi Matsui, Takayuki Toyoda, Tsutomu Shimano, Shohei Shibahara, Yuna Yamamoto
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Patent number: 11448980Abstract: A toner comprising a toner particle comprising a binder resin and an azo dye, wherein the binder resin comprises a polymer A, the polymer A is a polymer having a monomer unit derived from methacrylonitrile, and a relationship among an amount of substance (mol) of the monomer unit derived from methacrylonitrile, an amount of substance (mol) of the azo dye, and the number of azo groups in the azo dye in the toner particle satisfies formula below: [(amount of substance of azo dye (mol))×(number of azo groups in azo dye)/(amount of substance of monomer unit derived from methacrylonitrile (mol))]?0.500.Type: GrantFiled: December 7, 2020Date of Patent: September 20, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Takashi Matsui, Noritaka Toyoizumi, Tsutomu Shimano, Kenji Aoki, Shohei Shibahara, Yuna Yamamoto
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Patent number: 11393658Abstract: The invention provides a charged particle beam apparatus capable of observing a sample even when light is emitted from the sample, and a sample observation method using the charged particle beam apparatus. The charged particle beam apparatus includes: a charged particle beam source configured to irradiate a sample with a charged particle beam; a detector configured to detect charged particles emitted from the sample; and a control device configured to generate an image based on an output signal from the detector. The charged particle beam apparatus further includes a filter configured to allow at least a part of the charged particles emitted from the sample to transmit through the filter and configured to shield light emitted from the sample. The filter covers a detection surface of the detector expected from the sample.Type: GrantFiled: November 13, 2018Date of Patent: July 19, 2022Assignee: Hitachi High-Tech CorporationInventors: Yuki Tani, Kunji Shigeto, Kenji Aoki
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Publication number: 20220220346Abstract: Provided is a conductive adhesive sheet that has excellent connection stability even containing conductive particles in a small proportion. The inventive conductive adhesive sheet contains a binder component and conductive particles. The conductive particles are distributively arranged. Assume that all the conductive particles are regularly arranged; and that an optional region of the conductive adhesive sheet is viewed in plan view so that a distribution number Np of the distributed conductive particles be 9 to 25, a condition: 1.5X?Y?100X is met, where X represents the average of equivalent circle diameters of the distributed conductive particles; and Y represents the center-to-center distance between adjacent two of the distributed conductive particles, which are regularly arranged in the plan view. The ratio N/Np is 1.0 to 100.0, where N represents the number of the primary particles in the optional region.Type: ApplicationFiled: May 20, 2020Publication date: July 14, 2022Inventors: Yuusuke HARUNA, Kenji AOKI, Hiroshi TAJIMA, Sougo ISHIOKA
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Publication number: 20220219280Abstract: An embodiment of the invention of this application provides a polishing pad that eliminates a gap between an optical connector and a polishing film during polishing. A polishing pad of the embodiment is used by being placed between a polishing platen and a polishing sheet in a case of performing spherical polishing of an end surface of an optical connector including an optical fiber and a ferrule. The optical connector polishing pad of the embodiment has rebound resilience higher than 20%. The optical connector polishing pad of the embodiment can be formed from a urethane-based material.Type: ApplicationFiled: August 20, 2020Publication date: July 14, 2022Inventors: Kenji Aoki, Masaaki Konishi, Naoki Sugita
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Publication number: 20220187725Abstract: A toner contains a toner particle containing a resin component and a wax. The resin component contains a vinyl polymer A having a monomer unit A represented by the formula (A): In a luminance histogram created from STEM observation, the total pixel value C in luminance 0 to 9 and the total pixel value A in luminance 0 to 245 satisfy 0.000?C/A?0.250. When the pixel value in luminance 10 to 245 has a maximum value P at luminance X, luminance M-luminance N ranges from 120 to 235, wherein the luminance M denotes a luminance at which the pixel value falls below 20% of P for the first time from the luminance X to 245, and the luminance N denotes a luminance at which the pixel value falls below 20% of the P for the first time from the luminance X to 10.Type: ApplicationFiled: December 8, 2021Publication date: June 16, 2022Inventors: Yuna Yamamoto, Shohei Shibahara, Kenji Aoki, Tsutomu Shimano, Takashi Matsui, Takayuki Toyoda
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Publication number: 20220128916Abstract: A toner comprises a toner particle comprising a resin A and a resin B, wherein the resin A has a structure represented by a predetermined general formula, and the resin B has a monomer unit represented by a predetermined general formula, and a toner manufacturing method comprises a step of dispersing a toner base particle comprising the resin B in an aqueous medium to obtain a toner slurry, and a step of adding a radical polymerization initiator and a monomer composition comprising a monomer represented by a predetermined general formula to the resulting toner slurry to form the resin A on a surface of the toner base particle.Type: ApplicationFiled: October 15, 2021Publication date: April 28, 2022Inventors: Yu Yoshida, Takashi Matsui, Kenji Aoki, Tsuneyoshi Tominaga, Shohei Shibahara, Mariko Yamashita, Yuna Yamamoto, Kenji Ookubo, Takashi Kenmoku, Taku Shimoda, Masashi Kawamura
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Patent number: 11291365Abstract: An OCT system includes an OCT optical system and a reference attachment. The OCT optical system has a beam splitter for splitting light into a measurement optical path and a reference optical path, a photodetector, a first waveguide, a second waveguide, and first connectors provided at end portions of the first waveguide and the second waveguide respectively for indirectly or directly connecting the first waveguide and the second waveguide. The reference attachment has a third waveguide, and second connectors formed at both ends of the third wave guide and configured to be attachable to and detachable from the first connector, and is attached to and detached from the OCT optical system h attaching and detaching each of the second connectors to and from the first connector to change an optical path length of the reference optical path.Type: GrantFiled: January 31, 2020Date of Patent: April 5, 2022Assignee: NTDEK CO., LTD.Inventors: Shinya Iwata, Kenji Aoki, Takuya Matsumoto
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Patent number: 11287758Abstract: Provided is a toner has a toner particle containing a binder resin and is characterized in that the binder resin contains a polymer A, which is a polymer of a composition containing a first polymerizable monomer, a second polymerizable monomer and a crosslinking agent, the first polymerizable monomer is at least one monomer selected from the group consisting of (meth)acrylic acid esters having an alkyl group with 18 to 36 carbon atoms, the crosslinking agent has two or more polymerizable double bonds, a content of the first polymerizable monomer in the composition is 5.0 to 60.0 mol %, a content of the second polymerizable monomer is 20.0 to 95.0 mol %, and when the SP values of the first polymerizable monomer, the second polymerizable monomer and the crosslinking agent are denoted by SP12, SP22 and SPC2, respectively, the formulae 0.60?(SP22?SP12)?15.00 and SP12<SPC2<(SP22+3.00) are satisfied.Type: GrantFiled: June 22, 2020Date of Patent: March 29, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Takashi Matsui, Kenta Kamikura, Kenji Aoki, Masao Suzuki, Tsutomu Shimano, Reo Tagawa
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Publication number: 20220037112Abstract: The invention provides a charged particle beam apparatus capable of observing a sample even when light is emitted from the sample, and a sample observation method using the charged particle beam apparatus. The charged particle beam apparatus includes: a charged particle beam source configured to irradiate a sample with a charged particle beam; a detector configured to detect charged particles emitted from the sample; and a control device configured to generate an image based on an output signal from the detector. The charged particle beam apparatus further includes a filter configured to allow at least a part of the charged particles emitted from the sample to transmit through the filter and configured to shield light emitted from the sample. The filter covers a detection surface of the detector expected from the sample.Type: ApplicationFiled: November 13, 2018Publication date: February 3, 2022Inventors: Yuki TANI, Kunji SHIGETO, Kenji AOKI
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Patent number: 11125321Abstract: A gear shift control device for an automatic transmission device includes a transmission including an output unit setting and outputting a target value of the hydraulic pressure to the hydraulic control device. The output unit, when the shift stage is changed from a shift stage to another, increases the target value for a first friction coupling portion in the decoupled state in the shift stage to a first value, reduces to a second value, increases to a third value after the value is reduced to the second value, sets to a fourth value after the value is increased to the third value, and sets to a fifth value after the target value is set to the fourth value, and the output unit sets the fourth value according to magnitude of input torque to the transmission.Type: GrantFiled: April 28, 2020Date of Patent: September 21, 2021Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Koji Harada, Futoshi Hattori, Kenji Aoki