Patents by Inventor Toru Ishii
Toru Ishii 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: 11965582Abstract: A worm reducer has: a housing having a wheel housing portion and a worm housing portion; a worm wheel; a worm, a support bearing having an inner ring externally fitted to the tip end portion of the worm and an outer ring; an elastic biasing means elastically biasing the outer ring toward the worm wheel side; and an elastic holding means elastically holding the outer ring from both sides in a direction orthogonal to a biasing direction by the elastic biasing means and to a center axis of the worm housing portion.Type: GrantFiled: January 15, 2020Date of Patent: April 23, 2024Assignee: NSK LTD.Inventors: Ryou Oosawa, Satoshi Ishikuri, Haruhiko Kiyota, Souta Matsumoto, Toru Ishii, Hiroyuki Sugawara
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Patent number: 11938734Abstract: A cleaning solution containing a compound represented by formula (1), a compound represented by formula (2), and water; and an inkjet printer cleaning method using the same. R1—O(EO)m(PO)nH??(1) R2—O(EO)LH??(2) In formula (1), R1 represents a linear or branched C1-C30 alkyl group. EO represents an ethyleneoxy group, and PO represents a propyleneoxy group. m and n each independently represent an integer of 1-5. m:n, which is the ratio between m and n, is at least 1:2 and smaller than 3:2. In formula (2), R2 represents a linear or branched C1-C30 alkyl group, or an aryl group. EO represents an ethyleneoxy group. L represents an integer of at least 10. Formula (1): R1—O(EO)m(PO)nH. Formula (2): R2—O(EO)LH.Type: GrantFiled: February 4, 2020Date of Patent: March 26, 2024Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Hirotoshi Takahashi, Ha Sai, Toru Ishii
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Publication number: 20240085821Abstract: A developing roller comprising an electroconductive substrate and an electroconductive elastic layer constituted by a single layer on an outer periphery of the substrate. The elastic layer contains a diene-based rubber, has a thickness of 0.30 mm or more, and the elastic layer has a crown shape in which an outer diameter of a center portion in a longitudinal direction along an axis of the substrate is larger than an outer diameter of each of both end portions in the longitudinal direction. Elastic moduli E11, E12 and E13 in a first region of the elastic layer in cross-sections at positions P1, P2 and P3 of the elastic layer are each 500 MPa or more.Type: ApplicationFiled: November 14, 2023Publication date: March 14, 2024Inventors: TORU ISHII, KAZUAKI NAGAOKA
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Publication number: 20240061355Abstract: A toner comprising a toner particle, the toner particle comprising a binder resin, wherein the toner particle comprises a monoester wax, and a fatty acid metal salt A is present on a surface of the toner particle, when X(A) is defined as a coverage ratio of the surface of the toner particle by the fatty acid metal salt A, as determined by X-ray photoelectron spectroscopy and S(A) is defined as the coverage ratio of the surface of the toner particle by the fatty acid metal salt A, as determined by analysis of a scanning electron microscope image, the formulae below are satisfied: S(A)?0.03??(1) X(A)?0.250??(2) 0.248?S(A)/X(A)?1.000??(3).Type: ApplicationFiled: July 27, 2023Publication date: February 22, 2024Inventors: YUTA KOMIYA, KOSUKE FUKUDOME, KENTA KAMIKURA, SATOSHI ARIMURA, TORU ISHII, SHOHEI TSUDA
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Patent number: 11905595Abstract: A film deposition apparatus includes a rotary table disposed in a vacuum chamber; multiple stages on each of which a substrate is placeable, the stages being arranged along a circumferential direction of the rotary table; a process area configured to supply a process gas toward an upper surface of the rotary table; a heat treatment area that is disposed apart from the process area in the circumferential direction of the rotary table and configured to heat-treat the substrate at a temperature higher than a temperature used in the process area; and a cooling area that is disposed apart from the heat treatment area in the circumferential direction of the rotary table and configured to cool the substrate.Type: GrantFiled: February 1, 2021Date of Patent: February 20, 2024Assignee: Tokyo Electron LimitedInventors: Hitoshi Kato, Toru Ishii, Yuji Seshimo, Yuichiro Sase
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Publication number: 20240053691Abstract: A toner comprising a toner particle comprising a resin A and a resin B; wherein: the resin A is a vinyl resin having a sulfonic acid-type group, the resin B is a polyester resin; and when in analysis of the toner particle using time-of-flight secondary ion mass spectrometry, DA (nm) is defined as a depth at which an abundance of the resin A in a depth of 10 nm from a toner particle surface is a maximum, CAS (%) is defined as an abundance of the resin A at the depth DA, CBS (%) is defined as an abundance of the resin B at the depth DA, CA75 (%) is defined as an abundance of the resin A at a depth of 75 nm and CB75 (%) is defined as an abundance of the resin B at a depth of 75 nm, CAS, CA75, CBS and CB75 satisfy specific relationships.Type: ApplicationFiled: July 27, 2023Publication date: February 15, 2024Inventors: KENTA KAMIKURA, KOSUKE FUKUDOME, SHOHEI TSUDA, SATOSHI ARIMURA, TORU ISHII, YUTA KOMIYA
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Publication number: 20240053216Abstract: An object of the present disclosure is to provide a chamber with which inspection conditions of a leak test performed on workpieces of different sizes can easily be managed. The chamber according to an aspect of the present disclosure is a chamber used in a leak tester, and includes: a main chamber for housing a workpiece; a sub-chamber that communicates with the main chamber; and a volume changing mechanism for changing the volume of the sub-chamber, wherein the volume changing mechanism changes the volume of the sub-chamber such that a total volume of a space on the outside of the workpiece in the main chamber and the sub-chamber remains constant with respect to workpieces of different sizes.Type: ApplicationFiled: August 8, 2023Publication date: February 15, 2024Inventors: Toru ISHII, Minoru YAMAMOTO, Daisuke HOMMA, Kosei FUJITA
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Publication number: 20240053218Abstract: An object of the present invention is to provide a chamber in which workpieces of different sizes can be positioned. A chamber according to an aspect of the present invention is a chamber for a leak tester, the chamber housing in the interior thereof a workpiece having an opening, the chamber including: a first member having a recess that forms a housing space for the workpiece; a second member adapted to close an open end of the recess; and a positioning mechanism for positioning the workpiece within the housing space such that the opening is in a predetermined position, wherein the positioning mechanism holds the workpiece apart from the first member and the second member.Type: ApplicationFiled: August 8, 2023Publication date: February 15, 2024Inventors: Toru ISHII, Minoru YAMAMOTO, Daisuke HOMMA, Kosei FUJITA
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Publication number: 20240036489Abstract: A toner comprising a toner particle, the toner particle comprising a binder resin and a boric acid, wherein, where the toner particle is subjected to ATR-IR analysis by using germanium as an ATR crystal in an ATR method, a peak corresponding to the boric acid is detected, the toner comprises a fatty acid metal salt on a surface of the toner particle, and a presence ratio of an boron element on the surface of the toner particle is 0.01 atomic % or less as measured by X-ray photoelectron spectroscopy.Type: ApplicationFiled: July 19, 2023Publication date: February 1, 2024Inventors: SATOSHI ARIMURA, KOSUKE FUKUDOME, KENTA KAMIKURA, SHOHEI TSUDA, YUTA KOMIYA, TORU ISHII
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Publication number: 20230416920Abstract: A substrate processing apparatus includes: a processing container that accommodates a substrate; a processing gas supply that supplies a processing gas into the processing container; an exhaust that exhausts an inside of the processing container; a heater that heats the processing container; and a cooling gas injector that injects a cooling gas for cooling the substrate.Type: ApplicationFiled: June 15, 2023Publication date: December 28, 2023Inventors: Tatsuya YAMAGUCHI, Yutaka SASAKI, Makoto TAKAHASHI, Toru ISHII, Naoshige FUSHIMI, Koji YOSHII
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Patent number: 11851777Abstract: There is provided a hydrogen gas mixing device, including: a water electrolysis part configured to generate a hydrogen gas and an oxygen gas by electrolysis of water; a mixing gas supply part configured to supply a mixing gas; and a gas mixing part configured to mix the hydrogen gas and the mixing gas, wherein a non-combustible dilution gas is introduced into an oxygen flow part of the water electrolysis part through which the oxygen gas flows.Type: GrantFiled: December 28, 2020Date of Patent: December 26, 2023Assignee: YAMAHA FINE TECHNOLOGIES CO., LTD.Inventors: Hisashi Ichinokiyama, Takeshi Katoh, Toru Ishii, Yukio Sasaki
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Patent number: 11841629Abstract: A developing roller comprising an electroconductive substrate and an electroconductive elastic layer constituted by a single layer on an outer periphery of the substrate. The elastic layer contains a diene-based rubber, has a thickness of 0.30 mm or more, and the elastic layer has a crown shape in which an outer diameter of a center portion in a longitudinal direction along an axis of the substrate is larger than an outer diameter of each of both end portions in the longitudinal direction. Elastic moduli E11, E12 and E13 in a first region of the elastic layer in cross-sections at positions P1, P2 and P3 of the elastic layer are each 500 MPa or more.Type: GrantFiled: November 22, 2022Date of Patent: December 12, 2023Assignee: Canon Kabushiki KaishaInventors: Toru Ishii, Kazuaki Nagaoka
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Publication number: 20230314974Abstract: A toner comprising a toner particle comprising a binder resin, and a strontium titanate particle and a hydrotalcite particle on a surface of the toner particle, wherein the hydrotalcite particle comprises fluorine, the fluorine is present inside the hydrotalcite particle in line analysis of STEM-EDS mapping analysis of the toner, and when an area ratio of the strontium titanate particle to the toner particle in an EDS measurement field, which is measured through the STEM-EDS mapping analysis of the toner, is defined as T1 (%) and an area ratio of the hydrotalcite particle to the toner particle in the EDS measurement field, which is measured through the STEM-EDS mapping analysis of the toner, is defined as H1 (%), T1/H1 is 0.15 to 9.00.Type: ApplicationFiled: February 23, 2023Publication date: October 5, 2023Inventors: SHOHEI TSUDA, KENTA KAMIKURA, KOSUKE FUKUDOME, YUTA KOMIYA, SATOSHI ARIMURA, TORU ISHII
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Publication number: 20230273538Abstract: A toner comprising a toner particle comprising a binder resin, a fatty acid metal salt particle on a surface of the toner particle, and a hydrotalcite particle on a surface of the toner particle, wherein the hydrotalcite particle comprises fluorine, the fluorine is present inside the hydrotalcite particle in line analysis of STEM-EDS mapping analysis of the toner, and when an area ratio of the fatty acid metal salt particle to the toner particle in an EDS measurement field, which is measured through the STEM-EDS mapping analysis of the toner, is defined as Si (%) and an area ratio of the hydrotalcite particle to the toner particle in the EDS measurement field, which is measured through the STEM-EDS mapping analysis of the toner, is defined as H1 (%), S1/H1 is 0.25 to 9.00.Type: ApplicationFiled: February 23, 2023Publication date: August 31, 2023Inventors: KOSUKE FUKUDOME, SHOHEI TSUDA, KENTA KAMIKURA, SATOSHI ARIMURA, TORU ISHII, YUTA KOMIYA
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Patent number: 11697695Abstract: A polymerizable composition containing: a) a polymerizable compound having one or two or more polymerizable groups and satisfying formula (I): Re(450 nm)/Re(550 nm)<1.0 (I); b) at least one photopolymerization initiator selected from the group consisting of alkylphenone-based compounds, acylphosphine oxide-based compounds, and oxime ester-based compounds; and c) a polymerization inhibitor. An optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable liquid crystal composition. The polymerizable composition is excellent in solubility and has high storage stability, so that no precipitation of crystals etc. occurs. When a film-shaped polymer is produced by polymerizing the above composition, the unevenness of the surface of the coating film is small while the alignment of the liquid crystal is maintained, and high durability is obtained. Therefore, the polymerizable composition is useful.Type: GrantFiled: January 12, 2016Date of Patent: July 11, 2023Assignee: DIC CORPORATIONInventors: Kouichi Endo, Toru Ishii, Yasuhiro Kuwana, Kazuaki Hatsusaka, Mika Yamamoto
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Publication number: 20230168602Abstract: A developing roller comprising an electroconductive substrate and an electroconductive elastic layer constituted by a single layer on an outer periphery of the substrate. The elastic layer contains a diene-based rubber, has a thickness of 0.30 mm or more, and the elastic layer has a crown shape in which an outer diameter of a center portion in a longitudinal direction along an axis of the substrate is larger than an outer diameter of each of both end portions in the longitudinal direction. Elastic moduli E11, E12 and E13 in a first region of the elastic layer in cross-sections at positions P1, P2 and P3 of the elastic layer are each 500 MPa or more.Type: ApplicationFiled: November 22, 2022Publication date: June 1, 2023Inventors: Toru Ishii, Kazuaki Nagaoka
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Patent number: 11650516Abstract: Provided is a developing device including: a toner; and a developer carrying member. The developer carrying member includes an electroconductive substrate and a surface layer on the substrate, the surface layer being a single layer and including a matrix containing a crosslinked urethane resin as a binder, wherein E1 ?200 MPa and 10 MPa?E2 ?100 MPa, where E1 is an elastic modulus of the matrix in a first region from an outer surface of the surface layer to a depth of 0.1 and E2 is an elastic modulus of the matrix in a second region from a depth of 1.0 to 1.1 ?m from the outer surface. The toner includes a toner particle containing a binder resin and a colorant and having a Martens hardness of 85 to 1,100 MPa when measured under a condition of a maximum load of 2.0×10?4 N.Type: GrantFiled: April 15, 2022Date of Patent: May 16, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Tomoya Uesugi, Kazuaki Nagaoka, Toru Ishii, Ryo Sugiyama, Akio Nishi, Kentaro Yamawaki, Minoru Nakamura
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Patent number: 11648978Abstract: A torque transmission joint to suppress occurrence of noise when reversing the direction of rotation of a drive shaft. A first transmission member fixed to an output shaft (the drive shaft) is engaged with a first elastic member such that a first gap in a circumferential direction is interposed, as well as with an intermediate transmission member such that a larger gap in the circumferential direction is interposed. A second transmission member fixed to an end portion of a worm is engaged with a second elastic member such that a second gap in the circumferential direction is interposed, as well as with the intermediate transmission member such that a larger gap in the circumferential direction is interposed. First and second annular convex portions are fitted to, respectively, first and second concave portions to prevent separation of the first and second elastic members with respect to the intermediate transmission member.Type: GrantFiled: March 28, 2018Date of Patent: May 16, 2023Assignee: NSK, LTD.Inventors: Toru Segawa, Ryou Oosawa, Toru Ishii, Ryota Sugihara, Takeshi Yamamoto, Akihide Fujita
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Publication number: 20230024110Abstract: A torque transmission joint includes a first elastic body having a plurality of first elastic pieces pinched in a circumferential direction between respective first convex portions and a coupling, and a second elastic body having a plurality of second elastic pieces pinched in the circumferential direction between respective second convex portions and the coupling.Type: ApplicationFiled: December 2, 2020Publication date: January 26, 2023Applicant: NSK LTD.Inventors: Toru ISHII, Toru SEGAWA, Ryo OSAWA, Yuki UCHIYAMA
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Patent number: 11527345Abstract: An apparatus for magnetic annealing one or more workpieces, and a method of operating the apparatus, are described. The apparatus includes: a workpiece holder configured to support one or more workpieces, wherein the one or more workpieces having at least one substantially planar surface; an optional workpiece heating system configured to elevate the one or more workpieces to an anneal temperature; and a magnet assembly having a first magnet and a second magnet, the first and second magnets defining a gap between opposing poles of each magnet, wherein the magnet assembly is arranged to generate a magnetic field substantially perpendicular to the planar surface of the one or more workpieces.Type: GrantFiled: January 3, 2018Date of Patent: December 13, 2022Assignee: TOKYO ELECTRON LIMITEDInventors: Ian Colgan, Ioan Domsa, George Eyres, Toru Ishii, Makoto Saito, David Hurley, Noel O'Shaughnessy, Barry Clarke, Gerhardus Van Der Linde, Pat Hughes